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Xerox DocuPrint N2125 Service Manual

Manual is about: Network Laser Printer

Summary of DocuPrint N2125

  • Page 1

    Xerox xerox docuprint n2125 network laser printer service manual 721p52390 february 2000 this service manual contains information that applies to the docuprint n2125 laser printer. Caution these components are susceptible to electrostatic discharge. Observe all esd procedures to avoid damage..

  • Page 2

    Docuprint n2125 copyright 02/2000 ii initial issue copyright this service manual contains information that applies to the docuprint n2125 electronic laser printer. Notice this manual is for use by xerox technicians and xerox trained technicians only. Notice while every care has been taken in the pre...

  • Page 3

    Electrostatic discharge docuprint n2125 02/2000 iii initial issue electrostatic discharge this caution indicates that there are components which are sensitive to damage caused by electrostatic discharge. Shock hazard this symbol indicates the presence of potentially hazardous voltages. Fuser hazard ...

  • Page 4

    Docuprint n2125 table of contents 02/2000 iv initial issue table of contents title - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - page introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - iv organization - - - - - - - - - - - - - - - - - - - - -...

  • Page 5

    Organization docuprint n2125 02/2000 v initial issue organization this manual is divided into seven sections. The title and description of each section of the manual is as follows: section 1 - service call procedures this section is used to identify a suspected problem. It contains machine orientati...

  • Page 6

    Docuprint n2125 terminology and symbols 02/2000 vi initial issue terminology and symbols the following is the terminology and symbols that are used in this manual for warnings, electrostatic device or general cautions, and notes. Warning this equipment complies with the requirements in part 15 of fc...

  • Page 7

    Laser product certification docuprint n2125 02/2000 vii initial issue laser product certification caution use of controls or adjustments other than those specified in this manual may result in an exposure to dangerous laser radiation. The docuprint n2125 is certified to comply with laser product per...

  • Page 8

    Revision control list docuprint n2125 02/2000 viii page revision page revision page revision page revision page revision page revision initial issue product: docuprint n2125 laser printer title: xerox docuprint n2125 network laser printer service manual part number: 721p52390 title - - - -2/2000 ii ...

  • Page 9

    Revision control list docuprint n2125 02/2000 ix initial issue page revision page revision page revision page revision page revision page revision 4-107 - - -2/2000 4-108 - - -2/2000 4-109 - - -2/2000 4-110 - - -2/2000 4-111- - - -2/2000 4-112 - - -2/2000 4-113 - - -2/2000 4-114 - - -2/2000 4-115 - ...

  • Page 10

    Docuprint n2125 revision control list 02/2000 x page revision page revision page revision page revision page revision page revision initial issue.

  • Page 11

    02/2000 1-1 docuprint n2125 service call procedures initial issue 1 service call procedures 1.0 introduction................................................................................................................ 1-3 1.1 machine orientation ......................................................

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    02/2000 1-2 docuprint n2125 initial issue service call procedures.

  • Page 13

    02/2000 1-3 docuprint n2125 1.0, 1.1 service call procedures initial issue 1.0 introduction the service call procedures section is used to identify a suspected problem. This section con- tains call flow, initial actions, corrective actions, and final actions. Call flow illustrates the normal activit...

  • Page 14

    02/2000 1-4 docuprint n2125 1.2 initial issue service call procedures 1.2 call flow the call flow diagram shows the relationship of actions during a typical service call figure 1. The functions in call flow correspond to service manual sections as follows: section 1 - initial actions, corrective act...

  • Page 15

    02/2000 1-5 docuprint n2125 1.3, 1.4 service call procedures initial issue 1.3 initial actions initial actions are used to gather information from the operator concerning problems at the local machine. Make note of symptoms, error messages, error codes or other information con- cerning the problem t...

  • Page 16

    02/2000 1-6 docuprint n2125 1.4 initial issue service call procedures enter diagnostics and select “print menu”. Scroll to “test print”. Feed at least 5 test prints from all available trays to the standard output tray (gp 2.5) for test print. Test prints were suc- cessfully delivered from each tray....

  • Page 17

    02/2000 1-7 docuprint n2125 1.5 service call procedures initial issue 1.5 final actions procedure 1. Switch the main power off. 2. Update the tag matrix as required. 3. Reinstall all the covers removed during the service call and complete all required adminis- trative tasks. 4. Clean the covers and ...

  • Page 18

    02/2000 1-8 docuprint n2125 1.5 initial issue service call procedures.

  • Page 19

    02/2000 2-1 docuprint n2125 status indicator repair analysis procedures initial issue 2 status indicator repair analysis procedures introduction...................................................................................................................... 2-3 measurements........................

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    02/2000 2-2 docuprint n2125 initial issue status indicator repair analysis procedures.

  • Page 21

    02/2000 2-3 docuprint n2125 introduction, measurements status indicator repair analysis procedures initial issue introduction the repair analysis procedures section is used to isolate and identify problems to a faulty component or subassembly. It contains the introduction, display message table, err...

  • Page 22

    02/2000 2-4 docuprint n2125 introduction, measurements initial issue status indicator repair analysis procedures.

  • Page 23

    02/2000 2-5 docuprint n2125 error code tables status indicator repair analysis procedures initial issue error code tables table 1 error code table general info control panel message fault history entry diagnostic message error description action tray 1 failure power off/on c3-1e tray 1 is not detect...

  • Page 24

    02/2000 2-6 docuprint n2125 error code tables initial issue status indicator repair analysis procedures tray 3 feed jam tray 3 jam - open tray 3 e2-03 e2-0: feed jam paper arrives at registration sensor too early. Open tray 3 open front cover clear paper path go to rap 8 . Envelope feed jam envelope...

  • Page 25

    02/2000 2-7 docuprint n2125 error code tables status indicator repair analysis procedures initial issue exit jam 2 exit jam - open rear cover e4-3 e4-3: exit jam custom paper late off exit sensor within a specified time from registra- tion sensor. Open rear cover clear paper path change paper settin...

  • Page 26

    02/2000 2-8 docuprint n2125 error code tables initial issue status indicator repair analysis procedures paper size jam open rear cover pse-1 c5: paper size error there is a conflict between the size of the paper, which is detected by the size switches, and the length of paper the printer detects by ...

  • Page 27

    02/2000 2-9 docuprint n2125 error code tables status indicator repair analysis procedures initial issue iot nvm fail power off/on u6 u6: nvm fail 1. A read error is detected during power on. 2. A write error is detected during write to the nonvolatile memory. Power off and on replace print engine co...

  • Page 28

    02/2000 2-10 docuprint n2125 error code tables initial issue status indicator repair analysis procedures.

  • Page 29

    02/2000 2-11 docuprint n2125 rap 1 status indicator repair analysis procedures initial issue rap 1 ac power initial actions disconnect the ac power cord from the wall outlet. Warning improper connection of the grounding conductor can result in the risk of electrical shock. The following must be obse...

  • Page 30

    02/2000 2-12 docuprint n2125 rap 2 initial issue status indicator repair analysis procedures rap 2 dc power this procedure is used to troubleshoot the low voltage power supply. Procedure perform rap 1 before starting this rap. If rap 1 results are correct, switch the printer power off and disconnect...

  • Page 31

    02/2000 2-13 docuprint n2125 rap 3 status indicator repair analysis procedures initial issue rap 3 dc power loading initial actions perform rap 2 dc power before starting this rap. Warning ac input voltages can be lethal. Use extreme care while checking the voltages on the lvps. Disconnect the power...

  • Page 32

    02/2000 2-14 docuprint n2125 rap 4 initial issue status indicator repair analysis procedures rap 4 tray # failure power off/on (c3) tray assembly (tray 1, tray 2, or tray 3) are not in place. Procedure enter diagnostics, run a test print from every tray (see section 6). The error code specifies tray...

  • Page 33

    02/2000 2-15 docuprint n2125 rap 5 status indicator repair analysis procedures initial issue rap 5 tray # empty (c5) procedure the problem appears when using tray 2 or tray 3. Y n check the paper level in tray 1. There is paper in tray 1. Y n load paper into tray 1. Enter diagnostics and select test...

  • Page 34

    02/2000 2-16 docuprint n2125 rap 6 , rap 7 initial issue status indicator repair analysis procedures rap 6 remove output from std bin (c5) error code indicates the output tray is full. Procedure there is a paper stack in the standard bin actuating the stack full sensor. Y n the paper is curled. Y n ...

  • Page 35

    02/2000 2-17 docuprint n2125 rap 8 status indicator repair analysis procedures initial issue rap 8 paper jam / misfeed (e2) paper arrives early or late to the registration sensor or is on the sensor at power up. Procedure check the paper in all trays. Check for curled, damaged, or damp paper and for...

  • Page 36

    02/2000 2-18 docuprint n2125 rap 9 , rap 10 initial issue status indicator repair analysis procedures rap 9 system controller pwb procedure switch the printer power off. Remove the left interface cover ( rep 1.1 ). Remove all options and host interface cables from the system controller pwb. Switch t...

  • Page 37

    02/2000 2-19 docuprint n2125 rap 10, rap 11 status indicator repair analysis procedures initial issue select test print and run test prints. When the error code appears, inspect the position of lead edge of the paper. The lead edge of the paper passes between the btr and the print cartridge drum. Y ...

  • Page 38

    02/2000 2-20 docuprint n2125 rap 11 , rap 12 initial issue status indicator repair analysis procedures check the transport chute for contamination or obstructions. The transport chute is clean and free of obstructions. Y n clean of replace the transport chute as necessary ( rep 6.1 ). Replace the pr...

  • Page 39

    02/2000 2-21 docuprint n2125 rap 13 , rap 14 status indicator repair analysis procedures initial issue rap 13 install print cartridge (j3) the print cartridge is not in place or is installed incorrectly. Procedure open the front cover and remove the print cartridge. Inspect the tab on the top left o...

  • Page 40

    02/2000 2-22 docuprint n2125 rap 15 , rap 16 initial issue status indicator repair analysis procedures rap 15 p1: fuser pause receiving pause command from the controller. Procedure switch off the printer power. Remove the fuser assembly. Measure the resistance between pins a4 & a5 of p272 on the fus...

  • Page 41

    02/2000 2-23 docuprint n2125 rap 16 , rap 17 status indicator repair analysis procedures initial issue remove the paper from all paper trays. Scroll to tray 1 feed clutch and press enter. The main motor continues to rotate smoothly. Y n repair or replace the tray 1 feed clutch or feed shaft ( rep 3....

  • Page 42

    02/2000 2-24 docuprint n2125 rap 18 , rap 19 initial issue status indicator repair analysis procedures rap 18 fuser failure power off/on (u4) there is a problem with the fuser assembly. Procedure switch the printer power off. Wait a few minutes, then switch the printer power on. The error code reapp...

  • Page 43

    02/2000 2-25 docuprint n2125 rap 20 , rap 21 status indicator repair analysis procedures initial issue rap 20 fan failure power off now (u5) the printer is detecting incorrect fan rotation. Procedure switch the printer power off, then on. The fan rotates when the main power is switched on. Y n switc...

  • Page 44

    02/2000 2-26 docuprint n2125 rap 22 , rap 23 initial issue status indicator repair analysis procedures rap 22 paper size error there is a conflict between the size of paper the printer senses and the size of paper that is actually loaded. Procedure the problem appears when using tray 1, 2, or 3. Y n...

  • Page 45

    02/2000 2-27 docuprint n2125 rap 24 status indicator repair analysis procedures initial issue rap 24 inoperative printer the main power cannot be switched on. Procedure ensure the power cord is properly connected to the wall outlet and to the power receptacle of the printer. The problem still exists...

  • Page 46

    02/2000 2-28 docuprint n2125 rap 25 initial issue status indicator repair analysis procedures rap 25 malfunctioning lcd/led there is an erratic display on lcd/led. Procedure switch the printer power off. Remove any options connected to the system controller pwb. Disconnect p/j18 from the system cont...

  • Page 47

    02/2000 2-29 docuprint n2125 rap 26 , rap 27 status indicator repair analysis procedures initial issue rap 26 inoperative keypad control panel is not operative. Procedure enter diagnostics and select the component test. Scroll to sensor input test and press enter [4]. The printer enters the diagnost...

  • Page 48

    02/2000 2-30 docuprint n2125 rap 28 initial issue status indicator repair analysis procedures rap 28 power supply procedure switch the printer power off. Disconnect the power cord. Remove the left interface cover ( rep 1.1 ), left cover ( rep 1.2 ), and the left plate assembly ( rep 1.11 ). Disconne...

  • Page 49

    02/2000 2-31 docuprint n2125 rap 29 status indicator repair analysis procedures initial issue rap 29 main motor assembly procedure enter diagnostics and select the component test. Scroll to main motor operation and press enter. The main motor rotates. Y n switch the printer power off. Remove the lef...

  • Page 50

    02/2000 2-32 docuprint n2125 rap 30 , rap 31 initial issue status indicator repair analysis procedures rap 30 laser assembly procedure enter diagnostics and select component test. Scroll to ros motor and press enter. You can hear the ros motor spin up. Y n switch the printer power off. Remove the le...

  • Page 51

    02/2000 2-33 docuprint n2125 rap 31 , rap 32 status indicator repair analysis procedures initial issue reconnect p/j27. Measure the voltage on the lvps between p/j281 pin 12 and frame ground as you switch the printer power on. The voltage is 0.0vdc during fuser warm up, then changes to 2.8vdc. Y n r...

  • Page 52

    02/2000 2-34 docuprint n2125 rap 33 , rap 34 initial issue status indicator repair analysis procedures rap 33 mbf no paper sensor procedure enter diagnostics and select component test. Scroll to sensor input test and press enter. Actuate and deactuate the mbf no paper sensor. The number on the lcd i...

  • Page 53

    02/2000 2-35 docuprint n2125 rap 35 , rap 36 status indicator repair analysis procedures initial issue rap 35 standard bin stack full sensor procedure enter diagnostics and select component test. Scroll to sensor input test and press enter. Actuate and deactuate the stack full sensor actuator. The n...

  • Page 54

    02/2000 2-36 docuprint n2125 rap 37 , rap 38 initial issue status indicator repair analysis procedures rap 37 tray motor assembly checkout procedure procedure note: tray 1 interlocks the 24vdc supply to the tray 1 size pwb, tray 1 feeder pwb, tray 2 and tray 3. Tray 2 interlocks the 24vdc supply to ...

  • Page 55

    02/2000 2-37 docuprint n2125 rap 39 , rap 40 status indicator repair analysis procedures initial issue rap 39 turn roll clutch assembly procedure enter diagnostics and select component test. Scroll to turn roll clutch and press enter. You can hear the turn roll clutch energize. Y n remove tray 1. Ch...

  • Page 56

    02/2000 2-38 docuprint n2125 rap 41 , rap 42 initial issue status indicator repair analysis procedures rap 41 mbf feed solenoid procedure enter diagnostics and select component test. Scroll to confirm mbf feed solenoid and press enter. You can hear the mbf feed solenoid energize. Y n switch the prin...

  • Page 57

    02/2000 2-39 docuprint n2125 rap 43 , rap 44 status indicator repair analysis procedures initial issue rap 43 hvps assembly procedure open the front cover. Remove the print cartridge. Inspect all contacts on the transport chute assembly and the terminals on the print cartridge. The terminals are in ...

  • Page 58

    02/2000 2-40 docuprint n2125 rap 44 , rap 45 initial issue status indicator repair analysis procedures • print cartridge ( pl 8.1 ). • fuser assembly ( rep 6.2 ). Replace the hvps pwb assembly ( rep 9.6 ). Rap 45 dimm 1 (0101) procedure switch the printer power off. Remove the left interface cover (...

  • Page 59

    02/2000 2-41 docuprint n2125 rap 46, rap 47 status indicator repair analysis procedures initial issue rap 46 dimm 2 (0102) procedure switch the printer power off. Remove the left interface cover ( rep 1.1 ). Remove the dimm installed in slot 2 (slot 2 is the bottom dimm slot). Switch the printer pow...

  • Page 60

    02/2000 2-42 docuprint n2125 rap 48 , rap 49 initial issue status indicator repair analysis procedures rap 48 exit sensor procedure open the printer rear cover. Remove the duplex module, if installed. Open the fuser access cover and check the exit sensor actuator. Check that the actuator moves smoot...

  • Page 61

    02/2000 2-43 docuprint n2125 rap 50 , rap 51 status indicator repair analysis procedures initial issue rap 50 load mbf (c5) procedure enter diagnostics and select component test. Scroll to sensor input test and press enter. Actuate and deactuate the mbf no paper sensor. The number on the lcd increme...

  • Page 62

    02/2000 2-44 docuprint n2125 rap 50 , rap 51 initial issue status indicator repair analysis procedures.

  • Page 63

    02/2000 2-45 docuprint n2125 rap 52 , rap 53 status indicator repair analysis procedures initial issue rap 52 low paper tray 2 (or tray 3) 550 sheet feeder tray 2 and/or tray 3 have low paper. Procedure fill the affected paper tray with fresh paper. The error code is still displayed. Y n problem sol...

  • Page 64

    02/2000 2-46 docuprint n2125 rap 54 initial issue status indicator repair analysis procedures rap 54 550 sheet feeder assembly not recognized controller does not recognize the feeder assembly. Procedure check the alignment of the printer to the 550 sheet feeder and the alignment of the top 550 sheet...

  • Page 65

    02/2000 2-47 docuprint n2125 rap 55, rap 56 status indicator repair analysis procedures initial issue rap 55 duplex unit fail or removed (e9-1) duplex unit was removed while power was on. Procedure switch the printer power off. Remove and reinstall the duplex unit. Switch the printer power on. Run a...

  • Page 66

    02/2000 2-48 docuprint n2125 rap 55, rap 56 initial issue status indicator repair analysis procedures.

  • Page 67

    02/2000 2-49 docuprint n2125 rap 57 status indicator repair analysis procedures initial issue rap 57 offset jam open rear cover (e6-x) paper late to oct sensor, paper late off oct sensor, or paper on oct sensor at power on. Procedure open the printer rear cover and the oct rear cover. Check for pape...

  • Page 68

    02/2000 2-50 docuprint n2125 rap 58 , rap 59 initial issue status indicator repair analysis procedures rap 58 oct assy not recognized procedure switch the printer power off. Remove and reinstall the oct. Switch the printer power on. Run a config sheet. The oct is listed on the config sheet. Y n swit...

  • Page 69

    02/2000 2-51 docuprint n2125 rap 60, rap 61 status indicator repair analysis procedures initial issue rap 60 oct stack full sensor procedure enter diagnostics and select component test. Scroll to sensor input test and press enter. Actuate and deactuate the oct stack full sensor actuator. The number ...

  • Page 70

    02/2000 2-52 docuprint n2125 rap 60, rap 61 initial issue status indicator repair analysis procedures.

  • Page 71

    02/2000 2-53 docuprint n2125 rap 62, rap 63 status indicator repair analysis procedures initial issue rap 62 envelope feeder not recognized procedure switch the printer power off. Remove and reinstall the envelope feeder. Switch the printer power on. Run a config sheet. The envelope feeder is listed...

  • Page 72

    02/2000 2-54 docuprint n2125 rap 64, rap 65 initial issue status indicator repair analysis procedures rap 64 envelope no paper sensor procedure enter diagnostics and select component test. Scroll to sensor input test and press enter. Press and release the envelope feeder no paper sensor actuator. Th...

  • Page 73

    02/2000 2-55 docuprint n2125 rap 66 status indicator repair analysis procedures initial issue rap 66 envelope feeder jam (e2) envelopes early of late to the registration sensor. Procedure remove all envelopes. Check the envelope feeder and printer for contamination, paper scraps, or other obstructio...

  • Page 74

    02/2000 2-56 docuprint n2125 rap 66 initial issue status indicator repair analysis procedures.

  • Page 75

    02/2000 3-1 docuprint n2125 image quality repair analysis procedures initial issue 3 image quality repair analysis procedures introduction...................................................................................................................... 3-3 measurements..............................

  • Page 76

    02/2000 3-2 docuprint n2125 initial issue image quality repair analysis procedures.

  • Page 77

    02/2000 3-3 docuprint n2125 introduction, measurements image quality repair analysis procedures initial issue introduction this section contains image quality repair procedures to assist in correcting image quality defects. These procedures provide defect samples, definitions and specifications to h...

  • Page 78

    02/2000 3-4 docuprint n2125 image quality defect definitions initial issue image quality repair analysis procedures image quality defect definitions the system controller test print ( figure 1 ) is used to evaluate each of the print quality param- eters. Each area of the test pattern is used for a p...

  • Page 79

    02/2000 3-5 docuprint n2125 image quality checkout image quality repair analysis procedures initial issue image quality checkout the system controller test print is used to evaluate and ensure that the printed image meets the printer specifications. Use new paper, whenever possible, to check the ima...

  • Page 80

    02/2000 3-6 docuprint n2125 solid area density, background initial issue image quality repair analysis procedures solid area density procedure ensure the printer is set for 600 dpi. Compare the solid areas on the system controller test patterns with the output reference document (82p520) ( figure 1 ...

  • Page 81

    02/2000 3-7 docuprint n2125 deletions , fusing image quality repair analysis procedures initial issue deletions (line, band, spots) procedure inspect test prints for the presence of deletions (missing image). There should be no deletions with a diameter larger than 0.5 mm visible on test prints ( fi...

  • Page 82

    02/2000 3-8 docuprint n2125 resolution, registration initial issue image quality repair analysis procedures resolution procedure refer to figure 1 . Observe the three image areas on several system controller test patterns. Check the resolution of the images in each of the areas: arrow 1 the two pixe...

  • Page 83

    02/2000 3-9 docuprint n2125 registration , skew image quality repair analysis procedures initial issue registration (lead edge to trail edge) procedure measure the registration on two consecutive system controller test patterns. Fold the paper in half (lead edge to trail edge). Observe the fold line...

  • Page 84

    02/2000 3-10 docuprint n2125 skips / smears, spots initial issue image quality repair analysis procedures skips / smears procedure enter diagnostics and select test print. Scroll to print pattern and press enter [4]. Inspect the ladder chart test pattern. The pattern should be free from skips and sm...

  • Page 85

    02/2000 3-11 docuprint n2125 other print defects, iq rap 1 image quality repair analysis procedures initial issue other print defects procedure inspect the test patterns for other print defects. Test prints are free of defects. Y n there are dark streaks present on the test prints. Y n there is a re...

  • Page 86

    02/2000 3-12 docuprint n2125 iq rap 1 , iq rap 2 initial issue image quality repair analysis procedures y n clean the laser window and remove any obstructions from the laser beam path. The btr is intact and is free of contamination. Y n replace the btr ( rep 7.1 ). Generate a test print and switch o...

  • Page 87

    02/2000 3-13 docuprint n2125 iq rap 2 , iq rap 3 image quality repair analysis procedures initial issue check for continuity between the metal grounding contacts and the printer frame. There is continuity between the grounding contacts and the printer frame. Y n replace the print cartridge side guid...

  • Page 88

    02/2000 3-14 docuprint n2125 iq rap 3, iq rap 4 initial issue image quality repair analysis procedures warning if the printer has been switched on, the fuser will be hot. Open the rear cover. Remove the fuser assembly. Rotate the fuser idler gear manually and inspect the heat roll. Open fuser jam ac...

  • Page 89

    02/2000 3-15 docuprint n2125 iq rap 4 , iq rap 5 image quality repair analysis procedures initial issue y n problem solved. Inspect the btr assembly for contamination and wear. The btr is free of contamination and wear. Y n replace the btr assembly ( rep 7.1 ). Generate a test print and switch off t...

  • Page 90

    02/2000 3-16 docuprint n2125 iq rap 5 , iq rap 6 initial issue image quality repair analysis procedures inspect the btr assembly for contamination and wear. The btr is free of contamination and wear. Y n replace the btr assembly ( rep 7.1 ). Warning if the printer has been switched on, the fuser wil...

  • Page 91

    02/2000 3-17 docuprint n2125 iq rap 6 , iq rap 7 image quality repair analysis procedures initial issue y n replace the fuser assembly ( rep 6.2 ). Replace the following, in order, until the defective component is found: btr assembly ( rep 7.1 ), chute transport assembly ( rep 6.1 ). Iq rap 7 vertic...

  • Page 92

    02/2000 3-18 docuprint n2125 iq rap 7 , iq rap 8 initial issue image quality repair analysis procedures y n remove any obstructions from the laser beam path. Inspect the btr assembly for contamination and wear. The btr is free of contamina- tion and wear. Y n replace the btr assembly ( rep 7.1 ). Wa...

  • Page 93

    02/2000 3-19 docuprint n2125 iq rap 8, iq rap 9 image quality repair analysis procedures initial issue check for the continuity between the metal grounding contacts and the printer body frame. There is continuity between the grounding contacts and the printer frame. Y n replace the print cartridge s...

  • Page 94

    02/2000 3-20 docuprint n2125 iq rap 9, iq rap 10 initial issue image quality repair analysis procedures warning if the printer has been switched on, the fuser will be hot. Open the rear cover. Remove the fuser assembly. Rotate the fuser idler gear manually and inspect the heat roll. Open the fuser j...

  • Page 95

    02/2000 3-21 docuprint n2125 iq rap 11 , iq rap 12 image quality repair analysis procedures initial issue iq rap 11 background there is toner contamination on all or part of the page. The contamination appears as a very light gray dusting ( figure 1 ). Figure 1 background initial actions • inspect t...

  • Page 96

    02/2000 3-22 docuprint n2125 iq rap 12 , iq rap 13 initial issue image quality repair analysis procedures y n replace the fuser assembly ( rep 6.2 ). Panic stop the printer half way through the print cycle. Look at the image on the drum. The image on the drum has even density. Y n replace the laser ...

  • Page 97

    02/2000 3-23 docuprint n2125 iq rap 13 , iq rap 14 image quality repair analysis procedures initial issue • check the tray 2 feed rolls. Clean or replace if necessary. • check the tray 2 retard pad/retard roll. Clean or replace if neces- sary. • check the tray 2 nudger roll. Clean or replace if nece...

  • Page 98

    02/2000 3-24 docuprint n2125 iq rap 14 , iq rap 15 initial issue image quality repair analysis procedures y n replace the damaged or worn roll. Install a new print cartridge. Run a test print. The print is still damaged. Y n problem solved. Replace the following, in order, until the defective compon...

  • Page 99

    02/2000 3-25 docuprint n2125 iq rap 16 , iq rap 17 image quality repair analysis procedures initial issue iq rap 16 skips / smears a disturbance of the image which lengthens or shortens the image in the process direction. A darkening across the process direction or a repeat of the image in the proce...

  • Page 100

    02/2000 3-26 docuprint n2125 iq rap 17, iq rap 18 initial issue image quality repair analysis procedures y n clean or replace the fuser assembly ( rep 6.2 ). Open the fuser jam access cover. Rotate the fuser idler gear manually and inspect the contact between the heat roll and the pressure roll alon...

  • Page 101

    02/2000 4-1 docuprint n2125 repair-adjustment initial issue 4 repair-adjustment introduction...................................................................................................................... 4-3 covers and trays rep 1.1 left interface cover assembly..................................

  • Page 102

    02/2000 4-2 docuprint n2125 initial issue repair-adjustment rep 10.4 rear cover assembly ..................................................................................... 4-69 rep 10.5 lower cover ......................................................................................................

  • Page 103

    02/2000 4-3 docuprint n2125 introduction repair-adjustment initial issue introduction overview the repair / adjustment section, section 4 of the service manual, provides information that enables the service representative to restore the product to within specification after fault iso- lation. Sectio...

  • Page 104

    02/2000 4-4 docuprint n2125 introduction initial issue repair-adjustment.

  • Page 105

    02/2000 4-5 docuprint n2125 rep 1.1, rep 1.2 repair-adjustment initial issue rep 1.1 left interface cover assembly parts list on pl 1.1 removal warning switch off the power and disconnect the power cord. 1. Loosen the two thumb screws that secure the left interface cover assembly ( figure 1 ). 2. Sl...

  • Page 106

    02/2000 4-6 docuprint n2125 rep 1.3, rep 1.4 initial issue repair-adjustment rep 1.3 option cover parts list on pl 1.1 removal warning switch off the power and disconnect the power cord. 1. Squeeze the cover release and open the rear cover assembly. 2. Push the two locking tabs at the rear of option...

  • Page 107

    02/2000 4-7 docuprint n2125 rep 1.5 repair-adjustment initial issue rep 1.5 right cover parts list on pl 1.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the front cover assembly ( rep 1.6 ). 3. Remove the left front cover ( rep 1.7 ). 4. Open the r...

  • Page 108

    02/2000 4-8 docuprint n2125 rep 1.6, rep 1.7 initial issue repair-adjustment rep 1.6 front cover assembly parts list on pl 1.1 removal warning switch off the power and disconnect the power cord. 1. Open the front cover assembly. 2. Slide the cover stopper to the left or right and remove from the rig...

  • Page 109

    02/2000 4-9 docuprint n2125 rep 1.8 repair-adjustment initial issue rep 1.8 rear cover assembly parts list on pl 1.3 removal warning switch off the power and disconnect the power cord. 1. Open the rear cover assembly by squeezing the clips. 2. Lift the lead edge of the locking tab to release and rem...

  • Page 110

    02/2000 4-10 docuprint n2125 rep 1.9, rep 1.10 initial issue repair-adjustment rep 1.9 rear face up cover assembly parts list on pl 1.3 removal warning switch off the power and disconnect the power cord. 1. Open the rear cover assembly ( rep 1.8 ). 2. Release the pivot arm from the rear face up cove...

  • Page 111

    02/2000 4-11 docuprint n2125 rep 1.11, rep 1.12 repair-adjustment initial issue rep 1.11 left plate assembly parts list on pl 9.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( ...

  • Page 112

    02/2000 4-12 docuprint n2125 rep 1.11, rep 1.12 initial issue repair-adjustment.

  • Page 113

    02/2000 4-13 docuprint n2125 rep 2.1 repair-adjustment initial issue rep 2.1 retard roll assembly parts list on pl 12.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Release the left and right latches of tray 1 ( figure 1 ). 3. Open the retard chute ( figur...

  • Page 114

    02/2000 4-14 docuprint n2125 rep 2.2 initial issue repair-adjustment rep 2.2 friction clutch assembly parts list on pl 2.2 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Release the left and right latches of tray 1 ( figure 1 ). 3. Open the retard chute ( fi...

  • Page 115

    02/2000 4-15 docuprint n2125 rep 2.3 repair-adjustment initial issue rep 2.3 retard spring parts list on pl 2.2 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Release the left and right latches of tray 1 ( figure 1 ). 3. Open the retard chute ( figure 1 ). 4...

  • Page 116

    02/2000 4-16 docuprint n2125 rep 2.4 initial issue repair-adjustment rep 2.4 motor assembly parts list on pl 2.2 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the two screws that secure the rear l holder to tray 1 ( figure 1 ). 3. Remove the motor sp...

  • Page 117

    02/2000 4-17 docuprint n2125 rep 2.5 repair-adjustment initial issue rep 2.5 connector and socket guide parts list on pl 2.2 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the two screws that secure the left holder to the tray 1 ( figure 1 ). 3. Remov...

  • Page 118

    02/2000 4-18 docuprint n2125 rep 2.5 initial issue repair-adjustment.

  • Page 119

    02/2000 4-19 docuprint n2125 rep 3.1, rep 3.2 repair-adjustment initial issue rep 3.1 paper feeder parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. Note: remove all optional 550 sheet feeders. 2. Remove the left interface cover assembly ( rep...

  • Page 120

    02/2000 4-20 docuprint n2125 rep 3.3 initial issue repair-adjustment rep 3.3 tray 1 no paper actuator parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( rep 1.2...

  • Page 121

    02/2000 4-21 docuprint n2125 rep 3.4, rep 3.5 repair-adjustment initial issue rep 3.4 stack height sensor parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( rep...

  • Page 122

    02/2000 4-22 docuprint n2125 rep 3.6 initial issue repair-adjustment rep 3.6 feed clutch assembly parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( rep 1.2 ). ...

  • Page 123

    02/2000 4-23 docuprint n2125 rep 3.7 repair-adjustment initial issue rep 3.7 feeder assembly parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( rep 1.2 ). 4. Re...

  • Page 124

    02/2000 4-24 docuprint n2125 rep 3.8, rep 3.9 initial issue repair-adjustment rep 3.8 paper feed rolls parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Open the front chute assembly ( figure 1 ). 3. Release the locking tab on the front fee...

  • Page 125

    02/2000 4-25 docuprint n2125 rep 3.9, rep 3.10 repair-adjustment initial issue figure 1 feeder pwb replacement 1. Reinstall the components in the reverse order. Rep 3.10 feeder socket parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove...

  • Page 126

    02/2000 4-26 docuprint n2125 rep 3.10, rep 3.11 initial issue repair-adjustment replacement 1. Reinstall the components in the reverse order. Rep 3.11 size sensor housing parts list on pl 9.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left int...

  • Page 127

    02/2000 4-27 docuprint n2125 rep 3.12 repair-adjustment initial issue rep 3.12 size sensor actuators parts list on pl 9.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover ( rep 1.1 ). 3. Remove left cover ( rep 1.2 ). 4. Remove ...

  • Page 128

    02/2000 4-28 docuprint n2125 rep 3.13, rep 3.14 initial issue repair-adjustment rep 3.13 tray 1 size pwb parts list on pl 9.1 removal caution these components are susceptible to electrostatic discharge. Observe all esd procedures to avoid damage. Warning switch off the power and disconnect the power...

  • Page 129

    02/2000 4-29 docuprint n2125 rep 4.1, rep 4.2 repair-adjustment initial issue rep 4.1 mbf chute assembly parts list on pl 4.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover assem...

  • Page 130

    02/2000 4-30 docuprint n2125 rep 4.2, rep 4.3 initial issue repair-adjustment figure 2 mbf pick up cam figure 3 mbf roll assembly replacement 1. Reinstall the components in the reverse order. Rep 4.3 mbf feed roll parts list on pl 4.1 removal warning switch off the power and disconnect the power cor...

  • Page 131

    02/2000 4-31 docuprint n2125 rep 4.4 repair-adjustment initial issue rep 4.4 tray bottom assembly parts list on pl 4.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover assembly ( r...

  • Page 132

    02/2000 4-32 docuprint n2125 rep 4.5, rep 4.6 initial issue repair-adjustment rep 4.5 mbf no paper actuator parts list on pl 4.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover as...

  • Page 133

    02/2000 4-33 docuprint n2125 rep 4.7, rep 4.8 repair-adjustment initial issue rep 4.7 retard pad assembly parts list on pl 4.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover asse...

  • Page 134

    02/2000 4-34 docuprint n2125 rep 4.8, rep 4.9 initial issue repair-adjustment figure 2 mbf no paper sensor replacement 1. Reinstall the components in the reverse order. Rep 4.9 pick up solenoid parts list on pl 4.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1....

  • Page 135

    02/2000 4-35 docuprint n2125 rep 4.10 repair-adjustment initial issue rep 4.10 envelope connector assembly parts list on pl 4.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover ass...

  • Page 136

    02/2000 4-36 docuprint n2125 rep 4.10 initial issue repair-adjustment.

  • Page 137

    02/2000 4-37 docuprint n2125 rep 5.1 repair-adjustment initial issue rep 5.1 paper handler assembly parts list on pl 5.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover assembly (...

  • Page 138

    02/2000 4-38 docuprint n2125 rep 5.1, rep 5.2 initial issue repair-adjustment figure 4 paper handler assembly removal replacement 1. Reinstall the components in the reverse order. Rep 5.2 toner sensor parts list on pl 5.1 removal warning switch off the power and disconnect the power cord. 1. Remove ...

  • Page 139

    02/2000 4-39 docuprint n2125 rep 5.2, rep 5.3 repair-adjustment initial issue replacement 1. Reinstall the components in the reverse order. Rep 5.3 registration actuator parts list on pl 5.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left inte...

  • Page 140

    02/2000 4-40 docuprint n2125 rep 5.4, rep 5.5 initial issue repair-adjustment rep 5.4 registration sensor parts list on pl 5.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover asse...

  • Page 141

    02/2000 4-41 docuprint n2125 rep 5.6 repair-adjustment initial issue rep 5.6 rubber registration roll parts list on pl 5.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover assembly...

  • Page 142

    02/2000 4-42 docuprint n2125 rep 5.6 initial issue repair-adjustment figure 2 registration springs figure 3 rubber registration roll replacement 1. Reinstall the components in the reverse order..

  • Page 143

    02/2000 4-43 docuprint n2125 rep 6.1, rep 6.2 repair-adjustment initial issue rep 6.1 transport chute assembly parts list on pl 6.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover...

  • Page 144

    02/2000 4-44 docuprint n2125 rep 6.3 initial issue repair-adjustment rep 6.3 fuser harness assembly parts list on pl 6.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( rep 1.2 )...

  • Page 145

    02/2000 4-45 docuprint n2125 rep 6.4 repair-adjustment initial issue rep 6.4 exit chute assembly parts list on pl 7.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover assembly ( re...

  • Page 146

    02/2000 4-46 docuprint n2125 rep 6.5, rep 6.6 initial issue repair-adjustment rep 6.5 exit motor assembly parts list on pl 7.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the front cover asse...

  • Page 147

    02/2000 4-47 docuprint n2125 rep 6.7 repair-adjustment initial issue rep 6.7 mid 1 & mid 2 roll assemblies parts list on pl 7.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( re...

  • Page 148

    02/2000 4-48 docuprint n2125 rep 6.7 initial issue repair-adjustment figure 2 mid 1 roll assembly figure 3 mid 2 roll assembly replacement 1. Reinstall the components in the reverse order..

  • Page 149

    02/2000 4-49 docuprint n2125 rep 6.8 repair-adjustment initial issue rep 6.8 stack full actuator parts list on pl 7.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( rep 1.2 ). 4. Rem...

  • Page 150

    02/2000 4-50 docuprint n2125 rep 6.9 initial issue repair-adjustment rep 6.9 fuser upper cover assembly/ heat rod parts list on pl 6.1 removal warning switch off the power and disconnect the power cord. 1. Remove fuser assembly ( rep 6.2 ). 2. Disconnect p/j274 from the left end of the fuser assembl...

  • Page 151

    02/2000 4-51 docuprint n2125 rep 7.1, rep 7.2 repair-adjustment initial issue rep 7.1 btr assembly parts list on pl 6.1 removal warning switch off the power and disconnect the power cord. Do not touch the surface of the btr with your hands. Oil from your hands can cause image quality problems. After...

  • Page 152

    02/2000 4-52 docuprint n2125 rep 7.3 initial issue repair-adjustment rep 7.3 print cartridge sensor assembly parts list on pl 8.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.2 ) 3. Remove the front cover as...

  • Page 153

    02/2000 4-53 docuprint n2125 rep 7.4, rep 7.5 repair-adjustment initial issue rep 7.4 laser assembly parts list on pl 8.1 removal warning switch off the power and disconnect the power cord. 1. Remove the front cover assembly ( rep 1.6 ). 2. Remove the left front cover ( rep 1.7 ). 3. Open the rear c...

  • Page 154

    02/2000 4-54 docuprint n2125 rep 7.4, rep 7.5 initial issue repair-adjustment.

  • Page 155

    02/2000 4-55 docuprint n2125 rep 8.1, rep 8.2 repair-adjustment initial issue rep 8.1 main motor assembly parts list on pl 8.1 removal warning switch off the power and disconnect the power cord. 1. Remove the left interface cover ( rep 1.1 ). 2. Remove the left cover ( rep 1.2 ). 3. Remove the left ...

  • Page 156

    02/2000 4-56 docuprint n2125 rep 8.2 initial issue repair-adjustment 20. Pull bottom of assembly out and lower the assembly to release the locking tab and remove ( figure 1 ). Figure 1 drive gear assembly replacement 1. Reinstall the components in the reverse order..

  • Page 157

    02/2000 4-57 docuprint n2125 rep 9.1, rep 9.2 repair-adjustment initial issue rep 9.1 fan assembly parts list on pl 9.1 removal warning turn the power off and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( rep 1.2 ). 4...

  • Page 158

    02/2000 4-58 docuprint n2125 rep 9.2, rep 9.3 initial issue repair-adjustment replacement 1. Reinstall the components in the reverse order. Rep 9.3 print engine controller pwb parts list on pl 10.1 removal caution these components are susceptible to electrostatic discharge. Observe all esd procedure...

  • Page 159

    02/2000 4-59 docuprint n2125 rep 9.3, rep 9.4 repair-adjustment initial issue replacement 1. Reinstall the components in the reverse order. Rep 9.4 5vdc pwb parts list on pl 10.1 removal caution these components are susceptible to electrostatic discharge. Observe all esd procedures to avoid damage. ...

  • Page 160

    02/2000 4-60 docuprint n2125 rep 9.5, rep 9.6 initial issue repair-adjustment rep 9.5 lvps pwb parts list on pl 10.1 removal caution these components are susceptible to electrostatic discharge. Observe all esd procedures to avoid damage. Warning switch off the power and disconnect the power cord. 1....

  • Page 161

    02/2000 4-61 docuprint n2125 rep 9.6, rep 9.7 repair-adjustment initial issue figure 2 hvps pwb replacement 1. Reinstall the components in the reverse order. Rep 9.7 connector pwb parts list on pl 10.1 removal caution these components are susceptible to electrostatic discharge. Observe all esd proce...

  • Page 162

    02/2000 4-62 docuprint n2125 rep 9.8 initial issue repair-adjustment rep 9.8 main switch parts list on pl 10.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the left cover ( rep 1.2 ). 4. Remov...

  • Page 163

    02/2000 4-63 docuprint n2125 rep 9.9, rep 9.10 repair-adjustment initial issue rep 9.9 front interlock switch assembly parts list on pl 10.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray 1. 2. Remove the left interface cover assembly ( rep 1.1 ). 3. Remove the le...

  • Page 164

    02/2000 4-64 docuprint n2125 rep 9.11, rep 9.12 initial issue repair-adjustment rep 9.11 offset catch tray harness assembly parts list on pl 10.1 removal caution these components are susceptible to electrostatic discharge. Observe all esd procedures to avoid damage. Warning switch off the power and ...

  • Page 165

    02/2000 4-65 docuprint n2125 rep 9.12 repair-adjustment initial issue 20. Remove the duplex harness assembly ( figure 1 ). Figure 1 duplex harness assembly replacement 1. Reinstall the components in the reverse order..

  • Page 166

    02/2000 4-66 docuprint n2125 rep 9.12 initial issue repair-adjustment.

  • Page 167

    02/2000 4-67 docuprint n2125 rep 10.1, rep 10.2 repair-adjustment initial issue rep 10.1 offset catch tray (oct) parts list on pl 14.1 removal warning switch off the power and disconnect the power cord. 1. Open the printer rear cover. 2. Press the two locking tabs at the rear of the offset catch tra...

  • Page 168

    02/2000 4-68 docuprint n2125 rep 10.3 initial issue repair-adjustment rep 10.3 exit tray parts list on pl 14.1 removal warning switch off the power and disconnect the power cord. 1. Remove the exit tray extension ( rep 10.2 ). 2. Squeeze the upper end of the paper weight and remove ( figure 1 ). 3. ...

  • Page 169

    02/2000 4-69 docuprint n2125 rep 10.4, rep 10.5 repair-adjustment initial issue rep 10.4 rear cover assembly parts list on pl 14.1 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ). 3. Remo...

  • Page 170

    02/2000 4-70 docuprint n2125 rep 10.6, rep 10.7 initial issue repair-adjustment rep 10.6 inner exit chute assembly parts list on pl 14.1 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ). 3...

  • Page 171

    02/2000 4-71 docuprint n2125 rep 10.8, rep 10.9 repair-adjustment initial issue rep 10.8 motor drive assembly parts list on pl 14.2 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ). 3. Rem...

  • Page 172

    02/2000 4-72 docuprint n2125 rep 10.10, rep 10.11 initial issue repair-adjustment rep 10.10 direction solenoid parts list on pl 14.2 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ). 3. Re...

  • Page 173

    02/2000 4-73 docuprint n2125 rep 10.12, rep 10.13 repair-adjustment initial issue rep 10.12 stack full sensor actuator parts list on pl 14.2 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ...

  • Page 174

    02/2000 4-74 docuprint n2125 rep 10.14 initial issue repair-adjustment rep 10.14 offset roll assembly parts list on pl 14.2 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ). 3. Remove the ...

  • Page 175

    02/2000 4-75 docuprint n2125 rep 10.15 repair-adjustment initial issue rep 10.15 mid roll assembly parts list on pl 14.2 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ). 3. Remove the exi...

  • Page 176

    02/2000 4-76 docuprint n2125 rep 10.16, rep 10.17 initial issue repair-adjustment rep 10.16 offset assembly parts list on pl 14.2 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ). 3. Remov...

  • Page 177

    02/2000 4-77 docuprint n2125 rep 10.18 repair-adjustment initial issue rep 10.18 offset assembly home sensor parts list on pl 14.2 removal warning switch off the power and disconnect the power cord. 1. Remove the offset catch tray ( rep 10.1 ). 2. Remove the exit tray extension ( rep 10.2 ). 3. Remo...

  • Page 178

    02/2000 4-78 docuprint n2125 rep 10.18 initial issue repair-adjustment.

  • Page 179

    02/2000 4-79 docuprint n2125 rep 11.1, rep 11.2 repair-adjustment initial issue rep 11.1 printer removal parts list on pl 11.1 removal warning switch off the power and disconnect the power cord. 1. Remove tray from the feeder. 2. Remove the three screws that secure the printer to the 550 sheet feede...

  • Page 180

    02/2000 4-80 docuprint n2125 rep 11.3, rep 11.4 initial issue repair-adjustment rep 11.3 550 sheet feeder left cover parts list on pl 11.1 removal warning switch off the power and disconnect the power cord. 1. Remove the printer from the 550 sheet feeder ( rep 11.1 ). 2. Remove the tray from the fee...

  • Page 181

    02/2000 4-81 docuprint n2125 rep 11.5, rep 11.6 repair-adjustment initial issue rep 11.5 top plate parts list on pl 11.1 removal warning switch off the power and disconnect the power cord. 1. Remove the printer from the 550 sheet feeder ( rep 11.1 ). 2. Remove the tray from the feeder. 3. Remove the...

  • Page 182

    02/2000 4-82 docuprint n2125 rep 11.7, rep 11.8 initial issue repair-adjustment rep 11.7 no paper actuator parts list on pl 11.2 removal warning switch off the power and disconnect the power cord. 1. Remove the printer from the 550 sheet feeder ( rep 11.1 ). 2. Remove the tray from the feeder. 3. Re...

  • Page 183

    02/2000 4-83 docuprint n2125 rep 11.8, rep 11.9 repair-adjustment initial issue figure 2 chute spring figure 3 extension springs replacement 1. Reinstall the components in the reverse order. Rep 11.9 feeder pwb parts list on pl 11.2 removal caution these components are susceptible to electrostatic d...

  • Page 184

    02/2000 4-84 docuprint n2125 rep 11.9, rep 11.10 initial issue repair-adjustment replacement 1. Reinstall the components in the reverse order. Rep 11.10 feed clutch assembly parts list on pl 11.2 removal warning switch off the power and disconnect the power cord. 1. Remove the printer from the 550 s...

  • Page 185

    02/2000 4-85 docuprint n2125 rep 11.10, rep 11.11 repair-adjustment initial issue figure 2 feed clutch assembly replacement 1. Reinstall the components in the reverse order. Rep 11.11 paper feed rolls parts list on pl 11.2 removal warning switch off the power and disconnect the power cord. 1. Remove...

  • Page 186

    02/2000 4-86 docuprint n2125 rep 11.12 initial issue repair-adjustment rep 11.12 feeder assembly parts list on pl 11.2 removal warning switch off the power and disconnect the power cord. 1. Remove the printer from the 550 sheet feeder ( rep 11.1 ). 2. Remove the tray from the feeder. 3. Remove the 5...

  • Page 187

    02/2000 4-87 docuprint n2125 rep 11.13, rep 11.14 repair-adjustment initial issue rep 11.13 stack height sensor parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove the printer from the 550 sheet feeder ( rep 11.1 ). 2. Remove the tray from the feeder. 3...

  • Page 188

    02/2000 4-88 docuprint n2125 rep 11.15, rep 11.16 initial issue repair-adjustment rep 11.15 feeder socket parts list on pl 3.1 removal warning switch off the power and disconnect the power cord. 1. Remove the tray. 2. Remove the two screws that secure the socket to the feeder in the printer ( figure...

  • Page 189

    02/2000 4-89 docuprint n2125 rep 11.16, rep 11.17 repair-adjustment initial issue figure 2 disconnecting boss figure 3 size sensor harness assembly replacement 1. Reinstall the components in the reverse order. Rep 11.17 size sensor housing assembly parts list on pl 9.1 removal warning switch off the...

  • Page 190

    02/2000 4-90 docuprint n2125 rep 11.18 initial issue repair-adjustment rep 11.18 size sensor actuators parts list on pl 11.1 removal warning switch off the power and disconnect the power cord. 1. Remove the printer from the 550 sheet feeder ( rep 11.1 ). 2. Remove any lower feeders if installed. 3. ...

  • Page 191

    02/2000 4-91 docuprint n2125 rep 11.19, rep 11.20 repair-adjustment initial issue rep 11.19 size pwb parts list on pl 9.1 removal caution these components are susceptible to electrostatic discharge. Observe all esd procedures to avoid damage. Warning switch off the power and disconnect the power cor...

  • Page 192

    02/2000 4-92 docuprint n2125 rep 11.19, rep 11.20 initial issue repair-adjustment.

  • Page 193

    02/2000 4-93 docuprint n2125 rep 12.1, rep 12.2 repair-adjustment initial issue rep 12.1 duplex assembly parts list on pl 13.1 removal warning switch off the power and disconnect the power cord. 1. Open the printer rear cover. 2. Push the left and right latches in and pull the duplex assembly out an...

  • Page 194

    02/2000 4-94 docuprint n2125 rep 12.3, rep 12.4 initial issue repair-adjustment rep 12.3 duplex cover parts list on pl 13.2 removal warning switch off the power and disconnect the power cord. 1. Remove the duplex assembly ( rep 12.1 ). 2. Turn the duplex assembly upside down. 3. Release the three lo...

  • Page 195

    02/2000 4-95 docuprint n2125 rep 12.5, rep 12.6 repair-adjustment initial issue rep 12.5 drive cover parts list on pl 13.1 removal warning switch off the power and disconnect the power cord. 1. Remove the duplex assembly ( rep 12.1 ). 2. Remove the two screws that secure the cover ( figure 1 ). 3. R...

  • Page 196

    02/2000 4-96 docuprint n2125 rep 12.7 initial issue repair-adjustment rep 12.7 upper chute assembly parts list on pl 13.1 removal warning switch off the power and disconnect the power cord. 1. Remove the duplex assembly ( rep 12.1 ). 2. Remove the duplex cover ( rep 12.3 ). 3. Remove the drive cover...

  • Page 197

    02/2000 4-97 docuprint n2125 rep 12.8, rep 12.9 repair-adjustment initial issue rep 12.8 motor assembly parts list on pl 13.2 removal warning switch off the power and disconnect the power cord. 1. Remove the duplex assembly ( rep 12.1 ). 2. Remove the duplex cover ( rep 12.3 ). 3. Remove the drive c...

  • Page 198

    02/2000 4-98 docuprint n2125 rep 12.9, rep 12.10 initial issue repair-adjustment figure 2 rear roll assembly replacement 1. Reinstall the components in the reverse order. Rep 12.10 middle roll assembly parts list on pl 13.2 removal warning switch off the power and disconnect the power cord. 1. Remov...

  • Page 199

    02/2000 4-99 docuprint n2125 rep 12.10, rep 12.11 repair-adjustment initial issue figure 2 middle roll assembly replacement 1. Reinstall the components in the reverse order. Rep 12.11 front roll assembly parts list on pl 13.2 removal warning switch off the power and disconnect the power cord. 1. Rem...

  • Page 200

    02/2000 4-100 docuprint n2125 rep 12.11, rep 12.12 initial issue repair-adjustment figure 2 front roll assembly replacement 1. Reinstall the components in the reverse order. Rep 12.12 synchronous belt parts list on pl 13.2 removal warning switch off the power and disconnect the power cord. 1. Remove...

  • Page 201

    02/2000 4-101 docuprint n2125 rep 12.13, rep 12.14 repair-adjustment initial issue rep 12.13 transport sensor parts list on pl 13.2 removal warning switch off the power and disconnect the power cord. 1. Remove the duplex assembly ( rep 12.1 ). 2. Remove the duplex cover ( rep 12.3 ). 3. Disconnect p...

  • Page 202

    02/2000 4-102 docuprint n2125 rep 12.13, rep 12.14 initial issue repair-adjustment.

  • Page 203

    02/2000 4-103 docuprint n2125 rep 13.1, rep 13.2 repair-adjustment initial issue rep 13.1 bottom cover parts list on pl 12.1 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Turn the feeder upside down. 3. Remove the two screws th...

  • Page 204

    02/2000 4-104 docuprint n2125 rep 13.3, rep 13.4 initial issue repair-adjustment rep 13.3 envelope feeder pwb parts list on pl 12.2 removal caution these components are susceptible to electrostatic discharge. Observe all esd procedures to avoid damage. Warning switch off the power and disconnect the...

  • Page 205

    02/2000 4-105 docuprint n2125 rep 13.5, rep 13.6 repair-adjustment initial issue rep 13.5 exit pinch roll parts list on pl 12.1 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Remove the bottom cover ( rep 13.1 ). 3. Remove the t...

  • Page 206

    02/2000 4-106 docuprint n2125 rep 13.7, rep 13.8 initial issue repair-adjustment rep 13.7 weight arm parts list on pl 12.1 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Deflect the center of the weight arm until the end of the ...

  • Page 207

    02/2000 4-107 docuprint n2125 rep 13.9, rep 13.10 repair-adjustment initial issue rep 13.9 no paper actuator parts list on pl 12.2 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Remove the bottom cover ( rep 13.1 ). 3. Carefully...

  • Page 208

    02/2000 4-108 docuprint n2125 rep 13.11, rep 13.12 initial issue repair-adjustment rep 13.11 gear cover parts list on pl 12.2 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Remove the bottom cover ( rep 13.1 ). 3. Remove the top...

  • Page 209

    02/2000 4-109 docuprint n2125 rep 13.13 repair-adjustment initial issue rep 13.13 transport roll assembly parts list on pl 12.2 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Remove the bottom cover ( rep 13.1 ). 3. Remove the t...

  • Page 210

    02/2000 4-110 docuprint n2125 rep 13.14 initial issue repair-adjustment rep 13.14 bottom roll assembly parts list on pl 12.2 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Remove the bottom cover ( rep 13.1 ). 3. Remove the top ...

  • Page 211

    02/2000 4-111 docuprint n2125 rep 13.15 repair-adjustment initial issue rep 13.15 feed roll assembly 1 parts list on pl 12.2 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Remove the bottom cover ( rep 13.1 ). 3. Remove the top ...

  • Page 212

    02/2000 4-112 docuprint n2125 rep 13.16 initial issue repair-adjustment rep 13.16 feed roll assembly 2 parts list on pl 12.2 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Remove the bottom cover ( rep 13.1 ). 3. Remove the top ...

  • Page 213

    02/2000 4-113 docuprint n2125 rep 13.17 repair-adjustment initial issue rep 13.17 feed belts parts list on pl 12.2 removal warning switch off the power and disconnect the power cord. 1. Remove the envelope feeder from the printer. 2. Remove the bottom cover ( rep 13.1 ). 3. Remove the top chute ( re...

  • Page 214

    02/2000 4-114 docuprint n2125 rep 13.17 initial issue repair-adjustment.

  • Page 215

    02/2000 4-115 docuprint n2125 adj 1.1 repair-adjustment initial issue adj 1.1 registration purpose to adjust the registration in the scan direction and the process direction. To set default tray 1. Enter diagnostics and select test print. 2. Scroll to input tray. 3. Select the tray that you wish to ...

  • Page 216

    02/2000 4-116 docuprint n2125 adj 1.1 initial issue repair-adjustment.

  • Page 217

    02/2000 5-1 docuprint n2125 parts-list initial issue 5 parts-list introduction...................................................................................................................... 5-3 covers (1 of 3) pl 1.1 covers (1 of 3) ...............................................................

  • Page 218

    02/2000 5-2 docuprint n2125 initial issue parts-list.

  • Page 219

    02/2000 5-3 docuprint n2125 introduction parts-list initial issue introduction overview the parts list section provides exploded view illustrations of all spared subsystem components and a listing of the corresponding part numbers. The illustrations show the relationships between parts. Organization...

  • Page 220

    02/2000 5-4 docuprint n2125 pl 1.1 parts-list initial issue pl 1.1 covers (1 of 3) item part description 1 48e64591 left cover 2 802k11330 left interface cover 3 48e64642 option cover 4 48k76454 top cover assembly 5 802k09700 control panel assembly (with 6) 6 162k55281 control panel harness assembly...

  • Page 221

    02/2000 5-5 docuprint n2125 pl 1.2 parts-list initial issue pl 1.2 covers (2 of 3) item part description 1 - - - - - latch spring 2 - - - - - left latch 3 - - - - - right latch 4 - - - - - latch cover 5 - - - - - rear cover 6 - - - - - direction arm 7 600k79530 cap kit (quantity 2) 8 54k14991 face u...

  • Page 222

    02/2000 5-6 docuprint n2125 pl 1.3 parts-list initial issue pl 1.3 covers (3 of 3) options item part description 1 - - - - - rear face-up cover assembly (with 2-15) 2 - - - - - latch spring 3 - - - - - left latch 4 - - - - - right latch 5 - - - - - latch cover 6 - - - - - rear cover 7 - - - - - face...

  • Page 223

    02/2000 5-7 docuprint n2125 pl 2.1 parts-list initial issue pl 2.1 tray 1 (1 of 2) item part description 1 109r00448 cassette assembly (with 2-20 and pl 2.2) 2 - - - - - bottom plate assembly 3 - - - - - customer size knob 4 - - - - - custom size plate 5 - - - - - end guide assembly 6 - - - - - exte...

  • Page 224

    02/2000 5-8 docuprint n2125 pl 2.2 parts-list initial issue pl 2.2 tray 1 (2 of 2) item part description 1 - - - - - cassette assembly (with 2-27) (p/ o pl 2.1 item 1) 2 - - - - - retard cap 3 - - - - - retard chute base - left 4 - - - - - retard chute 5 - - - - - retard chute base - right 6 - - - -...

  • Page 225

    02/2000 5-9 docuprint n2125 pl 3.1 parts-list initial issue pl 3.1 paper feeder item part description 1 22k51531 turn roll assembly (with 2) 2 121k20151 turn clutch assembly 3 - - - - - extension spring 4 809e11630 chute spring 5 - - - - - feed cst cover 6 120e16960 no paper actuator 7 830e18131 sup...

  • Page 226

    02/2000 5-10 docuprint n2125 pl 4.1 parts-list initial issue pl 4.1 mbf chute item part description 1 54k13630 mbf chute assembly (with 2-30) 2 - - - - - mbf roll assembly (with 3-6, 28) 3 - - - - - mbf shaft assembly 4 - - - - - mbf pick-up cam 5 - - - - - core 6 22k50812 mbf roll assembly 7 - - - ...

  • Page 227

    02/2000 5-11 docuprint n2125 pl 5.1 parts-list initial issue pl 5.1 paper handler assembly item part description 1 - - - - - toner sensor 2 - - - - - toner holder sensor 3 - - - - - toner spring sensor 4 54k14980 paper handler assembly (with 2, 5- 31) 5 - - - - - registration roll - metal 6 - - - - ...

  • Page 228

    02/2000 5-12 docuprint n2125 pl 6.1 parts-list initial issue pl 6.1 chute transport & fuser item part description 1 22k55010 btr assembly 2 54k15000 transfer chute assembly (with 3-5) 3 - - - - - bearing btr sup 4 - - - - - spring btr 5 - - - - - transport chute (reference only) 6 126k10132 fuser as...

  • Page 229

    02/2000 5-13 docuprint n2125 pl 7.1 parts-list initial issue pl 7.1 exit item part description 1 105k14903 static eliminator assembly 2 120e13350 stack full actuator 3 - - - - - exit gate 4 - - - - - exit spring 5 - - - - - exit-17 gear 6 - - - - - exit bearing 7 59k11950 mid-1-3 roll assembly 8 - -...

  • Page 230

    02/2000 5-14 docuprint n2125 pl 8.1 parts-list initial issue pl 8.1 drive & xerographics item part description 1 113r00445 print cartridge (xc 10k) 113r00446 print cartridge (xc 15k) 2 - - - - - print cartridge sensor harness assembly (j25-j251) (p/o item 15) 3 - - - - - arrow label 4 32k94111 print...

  • Page 231

    02/2000 5-15 docuprint n2125 pl 9.1 frame & size sensor parts-list initial issue pl 9.1 frame & size sensor item part description 1 - - - - - left plate assembly 2 - - - - - clamp press 3 - - - - - left clamp press 4 - - - - - interface clamp 5 - - - - - lower b elec box 6 - - - - - lower a elec box...

  • Page 232

    02/2000 5-16 docuprint n2125 pl 10.1 parts-list initial issue pl 10.1 electrical item part description 1 162k47201 system controller harness assembly (j287-j282, j288) 2 160k65650 system controller pwb (network) 160k65940 system controller pwb (non- network) 3 - - - - - back panel 4 162k49271 oct ha...

  • Page 233

    02/2000 5-17 docuprint n2125 pl 11.1 parts-list initial issue pl 11.1 500 sheet feeder (1 of 2) item part description 1 - - - - - option feeder assembly (with 2- 20) 2 - - - - - gear opt bracket assembly 3 7e54920 gear opt i 4 - - - - - top plate 5 162k48431 option size harness assembly 6 - - - - - ...

  • Page 234

    02/2000 5-18 docuprint n2125 pl 11.2 parts-list initial issue pl 11.2 500 sheet feeder (2 of 2) item part description 1 - - - - - feeder assembly (with 2-40) 2 22k55001 turn roll assembly (with 3) 3 121k20151 turn clutch assembly 4 - - - - - spring extension 5 809e11630 spring chute 6 120e16960 no p...

  • Page 235

    02/2000 5-19 docuprint n2125 pl 12.1 parts-list initial issue pl 12.1 envelope feeder (1 of 2) item part description 1 - - - - - envelope feeder assembly (with 2- 23) 2 54e14452 top chute 3 - - - - - retard spring 4 - - - - - retard holder 5 - - - - - torque 29 clutch assembly 6 - - - - - retard rol...

  • Page 236

    02/2000 5-20 docuprint n2125 pl 12.2 parts-list initial issue pl 12.2 envelope feeder (2 of 2) item part description 1 - - - - - envelope feeder sub assembly (with 2-31) 2 - - - - - gear cover 3 7e27420 gear 29 4 - - - - - gear drive 21 5 7e36080 gear 23 6 121k87180 torque 25 clutch assembly 7 - - -...

  • Page 237

    02/2000 5-21 docuprint n2125 pl 13.1 parts-list initial issue pl 13.1 duplex (1 of 2) item part description 1 - - - - - duplex assembly (with 2-6) 2 - - - - - turn chute assembly 3 - - - - - connector chute assembly connector 4 54k15061 upper chute assembly 5 - - - - - duplex drive cover 6 - - - - -...

  • Page 238

    02/2000 5-22 docuprint n2125 pl 13.2 parts-list initial issue pl 13.2 duplex (2 of 2) item part description 1 - - - - - lower duplex chute assembly (with 2-18) 2 59k12151 duplex roll assembly 3 3e47580 duplex stopper belt 4 - - - - - duplex gear 17/pulley 5 - - - - - duplex bearing 6 - - - - - duple...

  • Page 239

    02/2000 5-23 docuprint n2125 pl 14.1 parts-list initial issue pl 14.1 offset catch tray (1 of 2) item part description 1 - - - - - offset catch tray assembly (with 2-10) 2 50k38631 exit tray assembly 3 - - - - - tray spring 4 50e89160 exit tray 5 12e09550 weight link 6 802e02773 rear cover 7 802e027...

  • Page 240

    02/2000 5-24 docuprint n2125 pl 14.2 initial issue parts-list pl 14.2 offset catch tray (2 of 2) item part description 1 54k14842 inner exit chute assembly (with 2-43) 2 - - - - - oct harness assembly (j21-p202) 3 - - - - - pwb holder 4 160k47332 oct pwb 5 - - - - - ground plate 6 127k28640 drive mo...

  • Page 241

    02/2000 6-1 docuprint n2125 general procedures / information initial issue 6 general procedures / information introduction introduction...................................................................................................................... 6-3 printer specifications gp 1.1 general spec...

  • Page 242

    02/2000 6-2 docuprint n2125 initial issue general procedures / information.

  • Page 243

    02/2000 6-3 docuprint n2125 introduction general procedures / information initial issue introduction the following information is contained within this section: general procedures includes the operations menu map and the service mode menu map. It includes all unique service operations and the machin...

  • Page 244

    02/2000 6-4 docuprint n2125 introduction initial issue general procedures / information.

  • Page 245

    02/2000 6-5 docuprint n2125 gp 1.1 general procedures / information initial issue gp 1.1 general specifications table 1 general specifications category specification printing method electro-photographic system (roller charging, single com- ponent magnetic toner development) exposure method semicondu...

  • Page 246

    02/2000 6-6 docuprint n2125 gp 1.2 , gp 1.3 initial issue general procedures / information gp 1.2 safety standards n2125 satisfies the following safety standards: table 1 gp 1.3 first print output time (fpot) the first print output time is the time from when the printer receives a start signal in th...

  • Page 247

    02/2000 6-7 docuprint n2125 gp 1.4 , gp 1.5 general procedures / information initial issue gp 1.4 continuous printing speed after the first sheet out gp 1.5 paper specifications the printer uses the following paper feed methods: • 550 universal paper tray standard feeder for the n2125 printer. Holds...

  • Page 248

    02/2000 6-8 docuprint n2125 gp 1.5 initial issue general procedures / information • envelope feeder (optional) optional envelope feeder for the n2125 printer, enables the feeding of envelopes. The table shows available paper sizes and stack capacity (table 4). Note: supported paper weight is 60gsm (...

  • Page 249

    02/2000 6-9 docuprint n2125 gp 1.5 general procedures / information initial issue paper size and feeder tray / output tray compatibility (table 7) paper sizes shown in the following table can be identified by the controller to improve process- ing. Otherwise, media will be processed as the maximum c...

  • Page 250

    02/2000 6-10 docuprint n2125 gp 1.5 initial issue general procedures / information a5 148.0 x 210.0 mm (5.83" x 8.27") simplex sef simplex sef ns yes yes yes executive 182.4 x 266.7 mm (7.25" x 10.5") duplex sef duplex sef ns yes yes yes 1/3 a4 99.0 x 210.0 mm (3.9" x 8.27") simplex cus* simplex cus...

  • Page 251

    02/2000 6-11 docuprint n2125 gp 1.6 , gp 1.7 general procedures / information initial issue gp 1.6 printing accuracy • lead edge registration: +2.0mm maximum • side edge registration: +2.5mm maximum • skew: +1.2mm maximum (at the distance of 190mm) gp 1.7 cru (print cartridge / fuser assembly) print...

  • Page 252

    02/2000 6-12 docuprint n2125 gp 1.8 , gp 1.9 initial issue general procedures / information gp 1.8 options there are several customer installed options available for the n2125 printer (table 1). Gp 1.9 optional feeder specifications the optional feeder assembly consists of a 550 sheet paper tray and...

  • Page 253

    02/2000 6-13 docuprint n2125 gp 1.9 , gp 1.10 general procedures / information initial issue dimension and weight (table 1) power supply the +24vdc and +3.3vdc are supplied from the lvps pwb through the print engine control- ler pwb, to the option size pwb and feeder pwb. Gp 1.10 duplex assembly spe...

  • Page 254

    02/2000 6-14 docuprint n2125 gp 1.11 , gp 1.12 initial issue general procedures / information gp 1.11 offsetting catch tray assembly specifications dimension and weight (table 1) figure 1 oct dimensions power supply the +24vdc and +3.3vdc are supplied from the lvps pwb through the print engine contr...

  • Page 255

    02/2000 6-15 docuprint n2125 gp 2.1 , gp 2.2 general procedures / information initial issue gp 2.1 power on diagnostics the system controller pwb has the following leds (table 1) (figure 1): figure 1 power on diagnostic leds gp 2.2 controller / ess diagnostics the system controller pwb provides the ...

  • Page 256

    02/2000 6-16 docuprint n2125 gp 2.3 , gp 2.4 initial issue general procedures / information gp 2.3 keys pad & led layout figure 1 illustrates the layout of the control panel figure 1 keys pad and led layout gp 2.4 iot diagnostics the iot diagnostics provide the ability to: • print iot test page. • r...

  • Page 257

    02/2000 6-17 docuprint n2125 gp 2.5 general procedures / information initial issue gp 2.5 test print the iot pattern is stored in the print engine controller pwb. The pattern will be used by ser- vice personnel to identify, repair, and validate the operability of printer xerographics and paper handl...

  • Page 258

    02/2000 6-18 docuprint n2125 gp 2.5 , gp 2.6 initial issue general procedures / information gp 2.6 nvm config the iot nvm values hold critical control parameters of the mechanical and electromagnetic components of the printer. The following allows service personnel to status or change nvm settings. ...

  • Page 259

    02/2000 6-19 docuprint n2125 gp 2.6 general procedures / information initial issue 12. Press key 1 or 5 to get back to the main menu (selection of component test or nvm con- fig or test print). * default * default table 2 nvm table menu selection default value read / write print res setting 02 read ...

  • Page 260

    02/2000 6-20 docuprint n2125 gp 2.6 , gp 2.7 initial issue general procedures / information if there is a u2 failure the detail code will be displayed when you press the value keys "3" or "7". If there is a u4 failure the detail code will be displayed when you press the value keys "3" or "7". If the...

  • Page 261

    02/2000 6-21 docuprint n2125 gp 2.7 , gp 2.8 general procedures / information initial issue gp 2.8 entering download mode 1. Power down printer. 2. Press and hold keys 1 and 5 as you switch printer power on. 3. Wait for message "entering down load mode" to appear on the lcd. 4. Release both keys. 5....

  • Page 262

    02/2000 6-22 docuprint n2125 gp 2.9 , gp 2.10 initial issue general procedures / information gp 2.9 to reset fuser 1. Power down printer. 2. Simultaneously hold keys 2 and 6 down. 3. Power up printer, wait for message "iot?" to appear on the lcd. 4. Release both keys, then simultaneously press keys ...

  • Page 263

    02/2000 6-23 docuprint n2125 gp 2.11 general procedures / information initial issue gp 2.11 system controller reset resets the system controller to factory defaults. Note: this will reset all network addresses to the factory default. 1. Power down printer. 2. Simultaneously hold keys 0 and 7 down. 3...

  • Page 264

    02/2000 6-24 docuprint n2125 gp 2.11 initial issue general procedures / information.

  • Page 265

    02/2000 6-25 docuprint n2125 gp 3.1 general procedures / information initial issue gp 3.1 print process overview print process overview (figure 1) (figure 2) there are seven steps in the n2125 print process. This seven step cycle is repeated for each sheet of paper that is sent through the printer. ...

  • Page 266

    02/2000 6-26 docuprint n2125 gp 3.1 initial issue general procedures / information figure 3 side view block diagram of the drum charge process 2. Exposure the raster output scanner (laser) generates an invisible beam of cohesive light, called a laser beam. Image data received from the print controll...

  • Page 267

    02/2000 6-27 docuprint n2125 gp 3.1 general procedures / information initial issue figure 5 side view block diagram of the transfer process 5. Discharge (figure 6) after the toner image has transferred to the surface of the paper, the detack saw (a thin strip of metal that resembles a saw blade) app...

  • Page 268

    02/2000 6-28 docuprint n2125 gp 3.1 , gp 3.2 initial issue general procedures / information figure 7 side view block diagram of the fusing and cleaning process the toner that the cleaning blade removes is collected inside the print cartridge. Toner that is reclaimed from the drum is not reused by th...

  • Page 269

    02/2000 6-29 docuprint n2125 gp 3.1 , gp 3.2 general procedures / information initial issue figure 2 is a cut-away side view of the n2125 printer that shows the major components that are directly related to the paper path. Figure 2 cut-away side view of the printer showing the paper path gp 3.3 driv...

  • Page 270

    02/2000 6-30 docuprint n2125 gp 3.3 initial issue general procedures / information drive transmission to the mbf roll assembly as shown in figure 2, the mechanical energy created by the main motor assembly is transmit- ted through gear 14 to the pick up gear that drives the mbf roll assembly. When t...

  • Page 271

    02/2000 6-31 docuprint n2125 gp 3.3 general procedures / information initial issue drive transmission to the feeder assembly as shown in figure 4, the mechanical energy created by the main motor assembly is transmit- ted through the drive gear assembly, turn clutch assembly, and idle gears to the fe...

  • Page 272

    02/2000 6-32 docuprint n2125 gp 3.3 initial issue general procedures / information drive transmission to the drum and the btr the main motor assembly transmits drive through the drive gear assembly to the drum drive gear that is located on the end of the drum. The drum gear drives the btr gear that ...

  • Page 273

    02/2000 6-33 docuprint n2125 gp 3.3 , gp 3.4 general procedures / information initial issue drive transmission to the exit components as shown in figure 8, the mechanical energy created by the exit motor assembly provides drive to the gears located on the roll assembly. Figure 8 drive transmission t...

  • Page 274

    02/2000 6-34 docuprint n2125 gp 3.5 , gp 3.6 initial issue general procedures / information gp 3.5 power supplies the lvps (low voltage power supply) (figure 1) the lvps uses a resonance-type switching regulator. The lvps supplies +24vdc, +5vdc, +3.3vdc. The lvps has built-in over current protection...

  • Page 275

    02/2000 6-35 docuprint n2125 gp 3.6 , gp 3.7 general procedures / information initial issue • warm-up failure - sos signal intervals are longer than the ready reference value during three consecutive samplings of the sos. The actual laser power does not equal the value set in nvram. • laser speed to...

  • Page 276

    02/2000 6-36 docuprint n2125 gp 3.7 , gp 3.8 initial issue general procedures / information • fuser pause command issued fuser temperature cycling (table 1) gp 3.8 erase cycle the printer immediately interrupts a print cycle whenever the front or rear covers are opened, there is a paper jam, tray 1 ...

  • Page 277

    02/2000 6-37 docuprint n2125 gp 3.9 , gp 3.10 general procedures / information initial issue gp 3.9 fan control the printer switches between two fan speeds. • high speed, when the main motor assembly is on. • low speed, when the main motor assembly is off. When printer power is switched on, or when ...

  • Page 278

    02/2000 6-38 docuprint n2125 gp 3.10 initial issue general procedures / information figure 2 the duplex paper path drive flow the duplex drive assembly generates the mechanical energy needed to run the duplex unit (figure 3). Figure 3 the drive flow of the duplex assembly function of major component...

  • Page 279

    02/2000 6-39 docuprint n2125 gp 3.10 , gp 3.11 general procedures / information initial issue the duplex assembly uses a single-sheet batch and a multi-sheet batch mode when duplex- ing a print job. Single-sheet batch is used by the printer when a complex duplex job is received. For example, if the ...

  • Page 280

    02/2000 6-40 docuprint n2125 gp 3.10 , gp 3.11 initial issue general procedures / information figure 2 shows a cut-off view of the printer, to better illustrate the components involved in the envelope paper path. Figure 2 the envelope paper path drive flow as shown in figure 3, the mechanical power ...

  • Page 281

    02/2000 6-41 docuprint n2125 gp 3.11 , gp 3.12 general procedures / information initial issue transfers the envelope by its counterclockwise rotation and transfers the drive power to the feed belts at the same time. Transfer roll assembly transfers the envelope to the registration paper path. No pap...

  • Page 282

    02/2000 6-42 docuprint n2125 gp 3.11 , gp 3.12 initial issue general procedures / information figure 2 shows a cut-off view of the printer, to better illustrate the components involved in the oct paper path. Figure 2 the oct paper path drive flow as shown in figure 3, the motor assembly drive genera...

  • Page 283

    02/2000 6-43 docuprint n2125 gp 3.12 general procedures / information initial issue controls oct operations. Offset roll assembly drives printed pages into the oct tray, offsetting each from the normal position. Oct exit sensor assembly located between the mid oct roll assembly and the exit roll ass...

  • Page 284

    02/2000 6-44 docuprint n2125 gp 3.12 , gp 3.13 initial issue general procedures / information e6-1 jam e6-1 is the specified time that the paper has to turn the oct sensor assembly low after it has turned the sensor exit high. If the sensor assembly exit does not go low after the specified time, the...

  • Page 285

    02/2000 6-45 docuprint n2125 gp 3.12 , gp 3.13 general procedures / information initial issue figure 2 shows a cut-off view of the printer, to better illustrate the components involved in the option feeder assembly paper path. Figure 2 the option feeder paper path drive flow as shown in figure 3, th...

  • Page 286

    02/2000 6-46 docuprint n2125 gp 3.13 initial issue general procedures / information feed clutch assembly consists of a gear and a electric clutch located on the end of the feeder assembly shaft. This clutch controls the transmission of the drive power from gear 3 through the turn clutch assembly to ...

  • Page 287

    02/2000 6-47 docuprint n2125 gp 4.1 general procedures / information initial issue gp 4.1 menu maps this chapter shows the menu structure in graphical format. The names of menus, items and values found in the menu maps contain the english language strings for reference only. The order of menus, item...

  • Page 288

    02/2000 6-48 docuprint n2125 gp 4.1 initial issue general procedures / information.

  • Page 289

    02/2000 6-49 docuprint n2125 gp 4.1 general procedures / information initial issue figure 3 tray menu.

  • Page 290

    02/2000 6-50 docuprint n2125 gp 4.1 initial issue general procedures / information figure 4 pcl menu.

  • Page 291

    02/2000 6-51 docuprint n2125 gp 4.1 general procedures / information initial issue figure 5 system menu.

  • Page 292

    02/2000 6-52 docuprint n2125 gp 4.1 initial issue general procedures / information figure 6 parallel menu figure 7 serial menu.

  • Page 293

    02/2000 6-53 docuprint n2125 gp 4.1 general procedures / information initial issue figure 8 usb menu.

  • Page 294

    02/2000 6-54 docuprint n2125 gp 4.1 initial issue general procedures / information figure 9 ethernet menu.

  • Page 295

    02/2000 6-55 docuprint n2125 gp 4.1 general procedures / information initial issue figure 10 token ring menu.

  • Page 296

    02/2000 6-56 docuprint n2125 gp 4.1 initial issue general procedures / information figure 11 novell menu.

  • Page 297

    02/2000 6-57 docuprint n2125 gp 4.1 general procedures / information initial issue figure 12 print menu figure 13 reset menu.

  • Page 298

    02/2000 6-58 docuprint n2125 gp 4.1 initial issue general procedures / information.

  • Page 299

    02/2000 6-59 docuprint n2125 gp 5.1 general procedures / information initial issue gp 5.1 supplemental tools, supplies, and hardware table 1 supplemental tools, supplies and hardware description part number cleaning cloth (treated) 35p1538 cleaning pads 600s4372 cotton swabs 35p2162 disposable glove...

  • Page 300

    02/2000 6-60 docuprint n2125 gp 5.1 initial issue general procedures / information.

  • Page 301

    02/2000 7-1 docuprint n2125 wiring data initial issue 7 wiring data section contents ............................................................................................................. 7-3 base engine ............................................................................................

  • Page 302

    02/2000 7-2 docuprint n2125 initial issue wiring data.

  • Page 303

    02/2000 7-3 docuprint n2125 section contents, base engine wiring data initial issue section contents introduction this section of the manual contains a block diagram for the n2125 printer. The block diagram shows the interconnections of the major subsystems within the printer. The remainder of this ...

  • Page 304

    02/2000 7-4 docuprint n2125 base engine initial issue wiring data p/j table table 1 base engine p/j table connector coordinate description tr e20 ( figure 1 ) connects the btr roll to the hvps dts e29 ( figure 1 ) connects the detack saw to the hvps p/j51 j20 ( figure 1 ) connects the print engine c...

  • Page 305

    02/2000 7-5 docuprint n2125 base engine wiring data initial issue p/j maps figure 1 base engine p/j location map (1 of 2) figure 2 base engine p/j location map (2 of 2).

  • Page 306

    02/2000 7-6 docuprint n2125 base engine initial issue wiring data wiring diagram notations the wiring diagrams presented in this manual use the following circuit notations to describe components and signal paths within the printer ( figure 3 ). Figure 3 wiring diagram notations.

  • Page 307

    02/2000 7-7 docuprint n2125 base engine wiring data initial issue block diagram figure 4 block diagram (1 of 2).

  • Page 308

    02/2000 7-8 docuprint n2125 base engine initial issue wiring data figure 5 block diagram (2 of 2).

  • Page 309

    02/2000 7-9 docuprint n2125 base engine wiring data initial issue block diagram tray 2 and tray 3 figure 6 block diagram tray 2 and tray 3 print engine controller pwb lvps pwb and fuser assembly ( fig- ure 7 ) ( table 2 ) figure 7 print engine controller lvps fuser print engine controller pwb lvps p...

  • Page 310

    02/2000 7-10 docuprint n2125 base engine initial issue wiring data lvps pwb fan assembly, front switch interlock assembly, 5vdc pwb and system controller pwb ( figure 8 ) ( table 3 ) figure 8 lvps fan assembly front switch interlock 5vdc pwb system controller pwb lvps pwb fan assembly, front switch ...

  • Page 311

    02/2000 7-11 docuprint n2125 base engine wiring data initial issue print engine controller pwb hvps pwb btr, print cartridge, and fuser assembly ( figure 9 ) ( table 4 ) ( table 5 ) figure 9 print engine controller pwb hvps pwb btr print cartridge print engine controller pwb hvps pwb btr, print cart...

  • Page 312

    02/2000 7-12 docuprint n2125 base engine initial issue wiring data table 5 shows the signal names for the hvps pwb btr, print cartridge, and fuser assembly path: table 5 signal names signal name description cr hvps output to the magnet roll db hvps output to the bcr tr hvps output to the btr (+dc in...

  • Page 313

    02/2000 7-13 docuprint n2125 base engine wiring data initial issue print engine controller pwb fuser assembly ( figure 10 ) ( table 6 ) figure 10 print engine controller pwb fuser assembly print engine controller pwb fuser assembly table 6 shows the signal names for the print engine controller pwb f...

  • Page 314

    02/2000 7-14 docuprint n2125 base engine initial issue wiring data print engine controller pwb exit sensor, and rear interlock switch ( figure 11 ) ( table 7 ) figure 11 print engine controller pwb exit sensor rear interlock switch print engine controller pwb exit sensor, and rear interlock switch a...

  • Page 315

    02/2000 7-15 docuprint n2125 base engine wiring data initial issue print engine controller pwb size 1 pwb feeder pwb low paper sensor, stack height sensor, feed clutch assembly, turn clutch assembly and motor assembly ( figure 12 ) ( table 8 ) ( table 9 ) figure 12 print engine controller pwb size 1...

  • Page 316

    02/2000 7-16 docuprint n2125 base engine initial issue wiring data table 8 shows the signal names for the print engine controller pwb size 1 pwb path: print engine controller pwb size 1 pwb feeder pwb low paper sensor, stack height sensor, feed clutch assembly, turn clutch assembly and motor assembl...

  • Page 317

    02/2000 7-17 docuprint n2125 base engine wiring data initial issue print engine controller pwb main motor assembly, exit motor assembly and print cartridge sensor assembly ( figure 13 ) ( table 10 ) figure 13 print engine controller pwb main motor assembly, exit motor assembly, print cartridge senso...

  • Page 318

    02/2000 7-18 docuprint n2125 base engine initial issue wiring data print engine controller pwb connector pwb paper set sen- sor, registration sensor, registration clutch, toner sensor, pick up solenoid ( figure 14 ) ( table 11 ) figure 14 print engine controller pwb connector pwb paper set sensor, r...

  • Page 319

    02/2000 7-19 docuprint n2125 base engine wiring data initial issue print engine controller pwb laser assembly ( figure 15 ) ( table 12 ) figure 15 print engine controller pwb laser assembly table 12 shows the signal names for the fuser print engine controller pwb laser assem- bly path: table 12 sign...

  • Page 320

    02/2000 7-20 docuprint n2125 base engine, 550 sheet paper feeder initial issue wiring data system controller pwb control panel ( figure 16 ) ( table 13 ) figure 16 system controller pwb control panel 550 sheet paper feeder wiring diagrams and signal information this section of the manual contains a ...

  • Page 321

    02/2000 7-21 docuprint n2125 550 sheet paper feeder wiring data initial issue p/j table p/j map figure 1 550 sheet paper feeder p/j map table 1 550 sheet paper feeder p/j table connector coordinate description p/j 52 i4 connects the size 550 sheet harness assembly to the size 550 sheet pwb. P/j 53 i...

  • Page 322

    02/2000 7-22 docuprint n2125 550 sheet paper feeder initial issue wiring data block diagram - 550 sheet feeder figure 2 550 sheet feeder block diagram.

  • Page 323

    02/2000 7-23 docuprint n2125 550 sheet paper feeder wiring data initial issue size 1 pwb tray 2 pwb tray 3 pwb ( table 2 ) table 2 shows the signal names for the print engine controller pwb size 1 pwb pwb option path: feeder pwb low paper sensor, stack height sensor, feed clutch assembly, turn clutc...

  • Page 324

    02/2000 7-24 docuprint n2125 duplex assembly initial issue wiring data duplex assembly wiring diagrams and signal information this section of the manual contains a block diagram for the n2125 duplex feeder assembly. The block diagram shows the interconnections of the major subsystems within the prin...

  • Page 325

    02/2000 7-25 docuprint n2125 duplex assembly wiring data initial issue p/j table p/j map figure 1 duplex assembly p/j map table 1 duplex assembly p/j table connector coordinate description p/j 36 h7 connects the duplex sensor harness assembly to the duplex pwb. P/j 37 h8 connects the duplex sensor a...

  • Page 326

    02/2000 7-26 docuprint n2125 duplex assembly initial issue wiring data block diagram figure 2 duplex assembly block diagram print engine controller pwb duplex pwb ( figure 3 ) ( table 2 ) figure 3 print engine controller pwb duplex pwb.

  • Page 327

    02/2000 7-27 docuprint n2125 duplex assembly wiring data initial issue table 2 shows the signal names for the print engine controller pwb duplex pwb path: duplex pwb sensor photo in-h(l), duplex sensor assembly and duplex motor assembly ( figure 4 ) figure 4 duplex pwb sensor photo in-h(l), duplex s...

  • Page 328

    02/2000 7-28 docuprint n2125 offset catch tray initial issue wiring data offset catch tray wiring diagrams and signal information this section of the manual contains a block diagram for the n2125 oct. The block diagram shows the interconnections of the major subsystems within the printer. The remain...

  • Page 329

    02/2000 7-29 docuprint n2125 offset catch tray wiring data initial issue p/j table p/j map figure 1 oct p/j map table 1 oct p/j table connector coordinate description p/j 202 e7 connects the oct harness assembly unit to the printer assembly. (print engine controller pwb) p/j 209 e7 connects the oct ...

  • Page 330

    02/2000 7-30 docuprint n2125 offset catch tray initial issue wiring data block diagram figure 2 oct block diagram print engine controller pwb oct pwb ( figure 3 ) ( table 2 ) figure 3 print engine controller pwb oct pwb.

  • Page 331

    02/2000 7-31 docuprint n2125 offset catch tray wiring data initial issue table 2 shows the signal names for the print engine controller pwb oct pwb path: oct pwb stack full sensor, oct home sensor, oct exit sensor assembly and direction solenoid ( figure 4 ) ( table 3 ) figure 4 oct pwb stack full s...

  • Page 332

    02/2000 7-32 docuprint n2125 offset catch tray initial issue wiring data oct pwb drive motor assembly and offset motor assembly ( fig- ure 5 ) ( table 4 ) figure 5 oct pwb drive motor assembly and offset motor assembly table 4 shows the signal names for the oct pwb drive motor assembly and offset mo...

  • Page 333

    02/2000 7-33 docuprint n2125 offset catch tray, envelope feeder wiring data initial issue envelope feeder wiring diagrams and signal information this section of the manual contains a block diagram for the n2125 envelope feeder. The block diagram shows the interconnections of the major subsystems wit...

  • Page 334

    02/2000 7-34 docuprint n2125 envelope feeder initial issue wiring data p/j table p/j map figure 1 envelope feeder p/j map table 1 envelope feeder p/j table connector coordinate description p/j 411 d6 connects the main harness assembly to the envelope pwb. P/j 412 c7 connects the sensor harness assem...

  • Page 335

    02/2000 7-35 docuprint n2125 envelope feeder wiring data initial issue block diagram figure 2 envelope feeder block diagram print engine controller pwb connector pwb envelope pwb ( figure 3 ) ( table 2 ) figure 3 print engine controller pwb connector pwb envelope pwb.

  • Page 336

    02/2000 7-36 docuprint n2125 envelope feeder initial issue wiring data table 2 shows the signal names for the print engine controller pwb connector pwb envelope pwb path: envelope pwb envelope exit sensor assembly, no paper sensor and clutch ( figure 4 ) figure 4 envelope pwb envelope exit sensor as...