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Lake Erie Systems 8900 Series Technical Reference Manual

Manual is about: Epson 8900 Series Printer Technical Reference Manual

Summary of 8900 Series

  • Page 1

    Model 8900 series printer technical reference manual 5321 buffalo road • erie, pa 16510 800-570-4533 • www.Fastprinters.Com.

  • Page 2: Contents

    Preface ............................................................................................... V 1 general information introduction .................................................................................... 1-2 paper-handling system ...................................................

  • Page 3: Contents

    6 tl model 855 printer dp emulation introduction .................................................................................... 6-3 model 855 dp command descriptions .......................................... 6-7 7 ibm proprinter xl emulation introduction .........................................

  • Page 4

    Copyright © 2001 by lake erie systems all rights reserved — printed in u.S.A. Model 8900 series printers technical reference manual part no. 2557824-0002 original issue: august 1989 revision f: january 2001 changes may be periodically made to the information in this publication. Such changes will be...

  • Page 5: Symbols Used In This Manual

    This manual contains technical information about the model 8900 series printers. This information supplements the information contained in the model 8900 series printer user’s manual part no. 2557785-0002 and is essential to programmers, system managers, and other technically oriented people. The in...

  • Page 6

    Vi chapter 3 — character sets and global commands provides general information about character sets and their use in the model 8900 series printer and describes the commands that are valid for all emulation modes, both standard and optional. These commands provide control of the basic features of th...

  • Page 7: Supplies

    Appendix — application instructions explains how to use the z-axis printhead adjustment escape sequence and how to clean the automatic page finder sensor. Other manuals about the printer the following manuals are available to help you learn more about your printer and to help you operate and maintai...

  • Page 8: General Information

    Introduction .................................................................................... 1-2 paper-handling system .................................................................. 1-2 printer features ............................................................................... 1-3 prin...

  • Page 9: Introduction

    Introduction the model 8900 series printer is one of a family of rugged, high- performance, dot-matrix impact printers, which forms letters, numbers, and other symbols by printing dot patterns. The printer offers a variety of common and unique features, such as multiple paper paths and paper-feed me...

  • Page 10: Printer Features

    All paper-handling operations are accessible through the control panel and via the host computer using global commands. Printer features the model 8900 series printer includes the following features. Q print quality choices — letter-quality (lq), text, normal draft, and rapid print ™ draft q standar...

  • Page 11: Print Quality

    Q graphics capabilities — vertical raster graphics (all points addressable) q color printing — up to seven colors, including black, for both text and graphics (standard on model 8930 and optional on model 8920) q resident emulation modes — ti 880, ti 855, epson ® fx and ibm proprinter xl q standard ...

  • Page 12

    Quality can be improved by increasing the dot density (resolution), as shown in the following figure. Dot density is expressed in dots per inch (dpi). The model 8900 series printer offers four levels of print quality, based on the dot density and the placement of dots on the matrix. The increased do...

  • Page 13: Raster Graphics

    General information 1-6 the printer offers the following print-quality levels and speeds. Q letter quality (lq) — high-resolution, 32-dot by 18-dot characters at 100 characters per second (cps). Q text quality — medium-resolution, 15-dot by 9-dot characters at 240 cps. Q normal draft quality — low-r...

  • Page 14: Printer Setup

    Introduction .................................................................................... 2-3 model 8900 series emulation modes ............................................ 2-5 ti 880 emulation ....................................................................... 2-6 execute commands ........

  • Page 15

    Miscellaneous setup parameters .................................................. 2-14 character set ........................................................................... 2-14 z-axis control ......................................................................... 2-15 ribbon type ...............

  • Page 16: Introduction

    Printer setup 2-3 introduction the model 8900 series printers are compatible with a wide range of computers and application software. The printer menu structure enables you to select and alter the fundamental printer operating parameters to fit the requirements of your computer, its communication in...

  • Page 17

    Printer setup 2-4 note: the model 8900 series printers user’s manual (part no. 2557785-0002) explains the basic use of the operator control panel and its associated menu structure. The setup/test switch on the control panel lets you enter the setup/ test menu. This menu consists of the following sub...

  • Page 18

    Model 8900 series emulation modes the emulation mode determines how the printer responds to commands from the host computer and determines the specific set of commands to which the printer responds. For example, if you select the ti 880 emulation mode, the printer emulates the functions of the ti mo...

  • Page 19

    Printer setup 2-6 ti 880 emulation the ti 880 emulation submenu contains a group of setup parameters that can be set to either on or off. These parameters determine how your printer responds to certain commands from the host computer. Execute commands when on, this parameter enables the printer to r...

  • Page 20

    Line feed and carriage return upon receipt of cr when on, this parameter causes the printer to perform both an lf operation and a cr operation upon receiving a cr command from the host computer. The default setting is off. Carriage return upon receipt of lf, vt, or dc2 when on, this parameter causes...

  • Page 21

    Printer setup 2-8 ti 855 emulation the ti 855 emulation submenu contains the processing mode (wp/dp) parameter and the automatic line feed parameter, both of which can be set to match the requirements of your computer. The following paragraphs describe these parameters. Processing mode the tl 855 em...

  • Page 22

    Printer setup 2-9 automatic carriage return this parameter is similar to the automatic lf parameter but is turned on for software that does not send a cr command at the end of each print line. If the printer advances from print line to print line but fails to perform a carriage return operation, you...

  • Page 23

    Printer setup 2-10 interface parameters the interface parameters are values associated with serial communi- cation interfaces. When using a serial interface, these parameters must be set to correspond to the capabilities of the host computer and the interface. The following figure shows the interfac...

  • Page 24

    Baud rate the baud rate is the rate (in bits per second) at which the interface transfers data. This parameters are 300, 600, 1200, 2400, 4800, 9600, or 19,200 bits per second. The default setting is 9600. Note: data transferred over a serial interface consists of either 7- or 8-bit data bytes, each...

  • Page 25

    Printer setup 2-12 xon/xoff (transmit-on/transmit-off) for this busy-handling protocol, the printer sends a single xon (a dc1 control character) to indicate that it is ready to receive data and a single xoff (a dc3 control character) to indicate that it is busy. The default setting is off. Robust xo...

  • Page 26

    Printer setup 2-13 etx/ack (end-of-text/acknowledge) for this busy-handling protocol, the host sends an etx control character at the end of each data transmission, and the printer responds with an ack control character to indicate that it is ready to receive additional data. If the printer is busy w...

  • Page 27

    Printer setup 2-14 miscellaneous setup parameters the miscellaneous setup parameters are mechanical and operational features that do not fit logically into the other setup categories. The following figure shows the miscellaneous setup parameters submenu and the following paragraphs describe these pa...

  • Page 28

    Printer setup 2-15 z-axis control the printer adjusts the printhead-to-paper clearance (z-axis) auto- matically when you load paper into the printer. In addition, the z-axis parameter provides a manual z-axis adjustment. This selection invokes a display that lets you adjust the printhead in or out. ...

  • Page 29

    Idle delay at the end of a printing operation, if the paper is at top of form, the printer waits for more data and then, after a short delay (idle delay), moves the paper to the tear-off position. The idle delay parameter invokes a display that lets you adjust the idle delay to a value in the range ...

  • Page 30

    Printer setup 2-17 graphics printing mode the bi-dir graphic parameter lets you choose whether the printer prints graphics bidirectionally or from left to right only. The default setting is no (print graphics from left to right only). Lcd language the lcd lang parameter lets you set the control pane...

  • Page 31: Test Features

    Access the menu to select the four available options as follows. 1. Press and hold the clear error switch, then press and hold the status switch. 2. Release the clear error switch, continue to hold the status switch, then press and hold the setup/test switch. 3. Release the status switch, continue t...

  • Page 32

    Character sets and global commands 3-1 introduction .................................................................................... 3-2 character code table ..................................................................... 3-2 character sets ....................................................

  • Page 33: Introduction

    Character sets and global commands 3-2 introduction this chapter describes the standard character sets and provides information about their use in the model 8900 series printers. The printer can use any of several standard or optional character sets that can be selected via the operator control pane...

  • Page 34: Character Sets

    Character sets your printer can use any of the following character sets. Q us ascii (default character set) q ibm pc1 q ibm pc2 q nordic pc q iso 8859/1 multinational q ibm multinational note: the option rom sockets on the printer logic board let you install additional character sets. Character sets...

  • Page 35

    The us ascii character set the following table shows the u.S.A. Standard code for information interchange (us ascii) character set. This 7-bit character set is defined by the american national standards institute document ansi x3.4 and is a variant of the iso 646 character set. Us ascii character se...

  • Page 36

    Character sets and global commands 3-5 international ascii character sets with a few exceptions, the international versions of the ascii character set are identical to the us ascii character set. These international versions can be selected via the operator control panel or via the host computer. Th...

  • Page 37

    Character sets and global commands 3-6 the ibm pc1 character set the following two tables show, respectively, the left half and right half of the the ibm pc 1 character set. Ibm pc1 character set, left half.

  • Page 38

    Character sets and global commands 3-7 ibm pc1 character set, right half.

  • Page 39

    Character sets and global commands 3-8 the ibm pc2 character set the following two tables show, respectively, the left half and the right half of the ibm pc2 character set. Ibm pc2 character set, left half.

  • Page 40

    Character sets and global commands 3-9 ibm pc2 character set, right half.

  • Page 41

    Character sets and global commands 3-10 the nordic pc character set the following two tables show, respectively, the left half and right half of the nordic pc character set. Nordic pc character set, left half.

  • Page 42

    Nordic pc character set, right half character sets and global commands 3-11.

  • Page 43

    Character sets and global commands 3-12 iso 8859/1 multinational character set the following two tables show, respectively, the left half and right half of the iso 8859/1 multinational character set. The shaded character positions (128-159) represent the cl control characters which are not implement...

  • Page 44

    Iso 8859/1 multinational character set, right half character sets and global commands 3-13.

  • Page 45

    Character sets and global commands 3-14 ibm multinational character set the following two tables show, respectively, the left half and right half of the ibm multinational character set. Ibm multinational character set, left half.

  • Page 46

    Character sets and global commands 3-15 ibm multinational character set, right half.

  • Page 47: Control Characters

    Character sets and global commands 3-16 control characters any character that causes the printer to perform a function is classified as a control character. Note that, although the cl control characters are available in one of the standard character sets (iso 8859/multinational), your printer does n...

  • Page 48

    Character sets and global commands 3-17 c0 control characters hexadecimal char code definition communication controls: soh 01 start of header stx 02 start of text etx 03 end of text eot 04 end of transmission enq 05 enquiry ack 06 acknowledge dle 10 data link escape nak 15 negative acknowledge syn 1...

  • Page 49

    Printer commands the model 8900 series printers receive commands from the host computer in the form of ascii control character codes and escape- sequence codes. In response to these commands, the printer performs one or more operations defined by the command set of the currently selected emulation m...

  • Page 50: Global Command Descriptions

    Character sets and global commands 3-19 some escape sequence commands, valid for all emulation modes, are called global commands. These are special commands that select or control some basic or specially defined printer operation. Global command set the following table lists the global commands for ...

  • Page 51

    Barcode operations the barcode commands let you select a barcode font, set its parameters, and print any specified character in the equivalent barcode font. Note: if the barcode option is not installed, using this esc sequence causes an esc seq error. Set barcode parameters escape sequence: esc dle ...

  • Page 52

    Character sets and global commands 3-21 print barcode text escape sequence: esc dle b c text etx hexadecimal: 1b 10 42 43 text 03 this command lets you print a character or string of characters specified by the variable text. For example, to print the barcode equivalents of the numerals 0, 1, and 2 ...

  • Page 53

    Character sets and global commands 3-22 print oversize character escape sequence: esc dle c c text etx hexadecimal: 1b 10 43 43 text 03 this command prints the text contained within the command using the horizontal and vertical scale factors selected by the set oversize characters command. The text ...

  • Page 54

    Character sets and global commands 3-23 selecting an automatic sheet feeder bin escape sequence: esc dle em n hexadecimal: 1b 10 19 n this command selects the asf bin designated by the variable n, where n can range from30 through 33 hex as follows: 0 (30h) = load from current bin 1 (31h) = select & ...

  • Page 55

    Character sets and global commands 3-24 defining raster graphics escape sequence: esc dle g d1 d2 n1 n2 data hexadecimal: 1b 10 47 d1 d2 n1 n2 data this command defines the dots-per-inch (dpi) density, the byte count of bit-image data, and bit-image data of those emulations that currently support ra...

  • Page 56

    Character sets and global commands 3-25 selecting a font escape sequence: esc dle f n hexadecimal: 1b 10 66 n this command allows you to access type styles not specifically supported by an emulation. This command selects the font designated by the variable n, where n can range from 0 through 254 dec...

  • Page 57

    Character sets and global commands 3-26 selecting characters per inch (cpi) escape sequence: esc dle p n hexadecimal: 1b 10 50 n this command enables you to access natural pitches of a font that may not be specifically supported by an emulation. The command sets pitch according to the variable n, wh...

  • Page 58

    Character sets and global commands 3-27 the values of n for print mode selection are listed in the following table. Mode hex value draft 30 text 31 letter 32 fast draft 33 selecting an international character set escape sequence: esc dle r n hexadecimal: 1b 10 52 n the ascii character set contains t...

  • Page 59

    Character sets and global commands 3-28 a character set is defined as 128 character positions. If more than 128 character positions are required, the set is divided in two and is designated left half (lh) for positions 1 through 127 and right half (rh) for positions 128 through 255. The msb determin...

  • Page 60

    Character sets and global commands 3-29 adjusting the print head z-axis position escape sequence: esc dle z s nn hexadecimal: 1b 10 7a s nn the adjust printhead z-axis position command adjusts the printhead in or out by the number of steps specified by the variable nn, which is a two-digit ascii val...

  • Page 61

    Character sets and global commands 3-30 if the paper is not at the top-of-form position when the printer receives the clear current path command, the printer executes a form feed operation before attempting to park tractor-fed paper and displays a prompt to please tear paper. If the paperout=busy op...

  • Page 62: Texas Instruments Model 880

    Introduction .................................................................................... 4-4 ti 880 answer message function ............................................. 4-5 ti 880 response format selection ............................................ 4-5 model 880 printer emulation command...

  • Page 63

    Ti model 880 printer emulation 4-2 move to column n .............................................................. 4-19 carriage return ................................................................... 4-19 tab right to column n ....................................................... 4-20 tab righ...

  • Page 64

    Ti model 880 printer emulation 4-3 cancel double line spacing .............................................. 4-26 print enhancement commands ................................................ 4-26 select expanded (double-wide) print ............................... 4-26 cancel expanded (double-wide) pr...

  • Page 65: Introduction

    Ti model 880 printer emulation 4-4 introduction the texas instruments model 880 printer emulation mode is the default emulation mode of your printer. If your printer includes color printing and the automatic sheet feeder, this mode lets you use the global commands described in chapter 3 for operatin...

  • Page 66

    Ti model 880 printer emulation 4-5 tl 880 answer message function the ti 880 emulation provides, as a ti 880 feature, an answerback message (abm) that can be programmed with a message of up to 20 characters. If a message is programmed, it is transmitted when the ascii character enq is received. The ...

  • Page 67

    Ti model 880 printer emulation 4-6 q when the resp fmt selection is w/ esc; the format of the responses to the configuration and status requests are preceded by the ascii esc character and the string terminator is preceded by a semicolon. Response examples: config: esc[880;14;27;36;41;c status: esc[...

  • Page 68

    Ti model 880 printer emulation 4-7 model 880 emulation commands (continued) command command name margin control esc [ n r set top margin at line n esc [ ; n r set bottom margin at line n esc [ n1 ; n2 r set top and bottom margins at lines n1 and n2 esc [ n s set left margin at column n esc [ ; n s s...

  • Page 69

    Ti model 880 printer emulation 4-8 model 880 emulation commands (continued) command command name vertical motion lf line feed ff form feed vt tab vertically dc2 n move to line n esc [ n d tab vertically to line n esc [ n e tab vertically n lines esc [ n1...N16 v set vertical tab stops esc 1 n1...N16...

  • Page 70

    Ti model 880 printer emulation 4-9 model 880 emulation commands (concluded) command command name print enhancement so select expanded print (1) esc p m esc \ select expanded print esc p n esc \ cancel expanded print esc p o esc \ select letter-quality print esc p p esc \ cancel letter-quality print ...

  • Page 71

    Model 880 command descriptions the following paragraphs describe the model 880 emulation mode commands. Many of the escape-sequence commands contain one or more variables to specify various command parameters. These variables are italicized in the command formats to indicate that they can be set to ...

  • Page 72

    Ti model 880 printer emulation 4-11 from the us ascii character table, the ascii character whose decimal value is 50 is the ascii character 2. Thus, in this example, you set the value of n to 2. Printer operation commands these commands allow the host computer to control some basic printer functions...

  • Page 73

    Ti model 880 printer emulation 4-12 the following table provides a complete list of model 880 configuration codes. Model 880 configuration codes code description communication mode 13 full-duplex modem connect 14 direct connection, pin 11 high for ready 15 direct connection, pin 11 low for ready 16 ...

  • Page 74

    Ti model 880 printer emulation 4-13 model 880 configuration codes code description miscellaneous configuration codes 81 escape sequence execution enabled 83 x-on/x-off control (dc1 = ready, dc3 = busy) 84 lf and cr on receipt of lf 85 lf and cr on receipt of cr 8a pin 20 ready/busy protocol enabled ...

  • Page 75

    Ti model 880 printer emulation 4-14 the following table provides a complete list of model 880 error codes. Model 880 error codes code description 02 rom error 03 nvram error 04 uart error 06 communication controller error 07 standard ram error 12 paper-out condition 23 receive buffer overflow condit...

  • Page 76

    Set form length to n lines escape sequence: esc c n hexadecimal: 1b 43 n escape sequence: esc 2 n hexadecimal: 1b 32 n the variable n can be any value in the range of 0 through 113 (hexadecimal 30 through 71). Note: the command esc2 n is not valid when raster graphics is enabled. Load default form p...

  • Page 77

    Ti model 880 printer emulation 4-16.

  • Page 78

    Ti model 880 printer emulation 4-17 margin control commands after the margins have been set, changing the line spacing does not affect the top and bottom margins. However, changing the character pitch shifts the left margin to the nearest column of the new pitch value. The right margin shifts in pro...

  • Page 79

    Ti model 880 printer emulation 4-18 set left margin at column n escape sequence: esc [ n s hexadecimal: 1b 5b n 73 the variable n can be any value in the range of 1 through, the column immediately to the left of the current right margin value, as determined by the line width setting. For example, if...

  • Page 80

    Ti model 880 printer emulation 4-19 horizontal motion commands after the horizontal tab stops have been set, changing from standard print to expanded print does not affect the tab stop positions. However, changing the character pitch alters the tab stop positions in proportion to the change in pitch...

  • Page 81

    Ti model 880 printer emulation 4-20 tab right to column n escape sequence: esc [ n ‘ hexadecimal: 1b 5b n 60 the variable n can represent any column between the current print position and the currently set right margin position. Tab right n columns escape sequence: esc [ n a hexadecimal: 1b 5b n 61 ...

  • Page 82

    Ti model 880 printer emulation 4-21 set horizontal tab stop at current position escape sequence: esc h hexadecimal: 1b 48 clear horizontal tab stop at current position escape sequence: esc [ 0 g hexadecimal: 1b 5b 30 67 vertical motion commands vertical tab stops define the line numbers at which the...

  • Page 83

    Ti model 880 printer emulation 4-22 tab vertically control character: vt hexadecimal: 0b if the printer is configured to perform a carriage return upon receiving a vt control character, this command causes the printer to print the current line, advance the paper to the next vertical tab stop, and pe...

  • Page 84

    Ti model 880 printer emulation 4-23 set vertical tab stops escape sequence: esc [ n1...N16 v hexadecimal: 1b 5b n1...N16 76 escape sequence: esc 1 n1...N16 nul hexadecimal: 1b 31 n1...N16 00 these commands set vertical tab stops at the lines specified by the variables n1 through n16 or n1 through n1...

  • Page 85

    Ti model 880 printer emulation 4-24 set character pitch to 10 cpi escape sequence: esc p c esc \ hexadecimal: 1b 50 43 1b 5c escape sequence: esc 6 hexadecimal: 1b 36 set character pitch to 12 cpi escape sequence: esc p k esc \ hexadecimal: 1b 50 4b 1b 5c set character pitch to 16.7 cpi escape seque...

  • Page 86

    Note: the command esc 2 is valid only when raster graphics is enabled. Set line spacing to 8 lpi escape sequence: esc p h esc \ hexadecimal: 1b 50 48 1b 5c escape sequence: esc 5 hexadecimal: 1b 35 escape sequence: esc 0 hexadecimal: 1b 30 set line spacing to n/72 inch escape sequence: esc a n hexad...

  • Page 87

    Ti model 880 printer emulation 4-26 cancel double line spacing escape sequence: esc p t esc \ hexadecimal: 1b 50 54 1b 5c print enhancement commands the print enhancement commands enable your printer to improve or enhance print quality. Print enhancements include expanded and letter quality print. S...

  • Page 88

    Ti model 880 printer emulation 4-27 raster graphics commands in the model 880 raster graphics mode, the printer alternates between the left and right printhead pins and uses only the top eight pins of each column. The graphics feature enables you to create drawings by sending dot patterns (in the fo...

  • Page 89

    Ti model 880 printer emulation 4-28 select 60 dpi graphics escape sequence: esc k n1 n2 hexadecimal: 1b 4b n1 n2 the variables n1 and n2 specify the number of bytes to print. Use the following steps to find the values of n1 and n2 for a horizontal line of graphics of a given length in inches. 1. Mul...

  • Page 90

    Ti model 880 printer emulation 4-29 font selection commands select font n escape sequence: esc f n hexadecimal: 1b 66 n the printer can have a maximum of 10 fonts, including the two standard fonts (gothic and courier) and up to eight optional fonts. The variable n can be any value in the range of 0 ...

  • Page 91

    Ti model 880 printer emulation 4-30 designate g2 font by rom identifier n escape sequence: esc * n hexadecimal: 1b 2a n designate g3 font by rom identifier n escape sequence: esc + n hexadecimal: 1b 2b n valid values for n are g for gothic and c for courier. Select designated character from g2 font ...

  • Page 92

    Ti model 880 printer emulation 4-31 invoke g1 font as gr escape sequence: esc k hexadecimal: 1b 6b invoke g2 font as gr escape sequence: esc 1 hexadecimal: 1b 6c invoke g3 font as gr escape sequence: esc m hexadecimal: 1b 6d.

  • Page 93: Texas Instruments

    5 texas instruments model 855 printer wp emulation introduction .................................................................................... 5-4 motion indexes ............................................................................... 5-5 model 855 wp commands..............................

  • Page 94

    Tab horizontally absolute .................................................. 5-15 set horizontal tab stop at current position ...................... 5-15 clear all horizontal tab stops .......................................... 5-15 clear horizontal tab stop at current position ................... 5...

  • Page 95

    Ti model 855 printer wp emulation 5-3 select 60 dpi graphics ........................................................ 5-21 select 72 dpi graphics ........................................................ 5-21 select 120 dpi graphics ...................................................... 5-21 select 1...

  • Page 96: Introduction

    Introduction this chapter describes the texas instruments model 855 word processing (wp) emulation mode. The model 855 wp emulation mode allows the model 8900 series printer to accept and respond to commands similar to those for a daisy-wheel printer. This mode allows the printer to emulate most fun...

  • Page 97: Motion Indexes

    Q the escape sequence for font selection is esc f n. Q selecting or canceling proportional spacing is not supported. Q disabling the paper-out detection is not supported. Motion indexes the model 855 wp emulation mode uses motion indexes to specify certain horizontal and vertical parameters. These m...

  • Page 98: Model 855 Wp Commands

    Model 855 wp commands the following table lists the model 855 wp commands. The para- graphs that follow the table describe these commands. Model 855 wp commands command command name printer operation esc @ select dp mode esc cr p select wp mode esc sub i select wp mode esc w suspend printing esc > s...

  • Page 99

    Model 855 wp commands (continued) command name command name horizontal motion bs backspace ht tab horizontally cr carriage return esc bs move back 1/120 inch esc ht n tab horizontally absolute esc 1 set horizontal tab stop at current position esc 2 clear all horizontal tab stops esc 8 clear horizont...

  • Page 100

    Model 855 wp commands (concluded) command name command name horizontal motion esc sp print special character esc / print special character print enhancement so select expanded print dc4 cancel expanded print si select compressed print dc2 cancel compressed print esc q select letter-quality print esc...

  • Page 101

    Ti model 855 printer wp emulation 5-9 model 855 wp command descriptions the following paragraphs describe the model 855 wp emulation commands. The command formats are listed following each command description. Many of the escape-sequence commands contain one or more variables to specify various comm...

  • Page 102

    Ti model 855 printer wp emulation 5-10 select unidirectional printing escape sequence: esc > hexadecimal: 1b 3e this command causes the printer to print all subsequent characters in the forward (left-to-right) direction only. Cancel unidirectional printing escape sequence: esc hexadecimal: 1b 3c thi...

  • Page 103

    Form format and font selection commands the form format commands let you select and set some form-related parameters. The font selection command lets you choose between the two standard fonts and any installed optional fonts. The standard fonts for the model 8900 series printer are courier and gothi...

  • Page 104

    Select font n escape sequence: esc f n hexadecimal: 1b 66 n the printer can have a maximum of 10 fonts, including the two standard fonts (gothic and courier) and up to eight optional fonts. The variable n can be any value in the range of 0 through 9, where 0 designates gothic, 1 designates courier, ...

  • Page 105

    Cancel right margin justification escape sequence: esc [ hexadecimal: 1b 5b set top margin at current position escape sequence: esc + hexadecimal: 1b 2b changing the form length setting overrides this command and resets the top margin to the top-of-form position. Set bottom margin at current positio...

  • Page 106

    Horizontal motion commands the following paragraphs describe the commands for horizontal motion and horizontal tab functions in the model 855 wp emulation mode. Backspace control character: bs hexadecimal: 08 this command causes the printer to move the printhead one hmi position to the left. The nex...

  • Page 107

    Ti model 855 printer wp emulation 5-15 q if the expanded print mode is active, the cr command resets the printer to the normal print mode. Q if the automatic line feed function is active, the cr command causes the paper to advance one print line. Move back 1/120 inch escape sequence: esc bs hexadeci...

  • Page 108

    Ti model 855 printer wp emulation 5-16 vertical motion commands vertical tab stops define the line numbers at which the paper stops when performing vertical tab operations. After vertical tab stops have been set, any change of the vertical pitch causes a proportional change in the vertical tab stop ...

  • Page 109

    Move up one line escape sequence: esc lf hexadecimal: 1b 0a the line space is the distance defined by the vmi or the distance set via the form config switch on the control panel. Move up one-half line escape sequence: esc d hexadecimal: 1b 40 when one-half line space is a fractional number of 1/144 ...

  • Page 110

    Set character pitch to 12 cpi escape sequence: esc z hexadecimal: 1b 7a this command sets the character pitch to 12 cpi. Line spacing commands the following paragraphs describe the commands for line spacing operations in the model 855 wp emulation mode. Set vertical motion index to ( n-1)/48 inch es...

  • Page 111

    Ti model 855 printer wp emulation 5-19 print enhancement commands the print enhancement commands enable your printer to improve or enhance the print quality. Print enhancements include such things as expanded, compressed, lq, and underlined text as well as boldface and shadow printing. Select expand...

  • Page 112

    Cancel letter-quality print escape sequence: esc d hexadecimal: 1b 64 this command cancels lq print and returns the printer to the draft print mode. Select text-underline print escape sequence: esc i hexadecimal: 1b 49 cancel text-underline print escape sequence: esc j hexadecimal: 1b 4a select bold...

  • Page 113

    Ti model 855 printer wp emulation 5-21 raster graphics commands the following paragraphs describe the commands that control the raster graphics feature in the ti 855 wp emulation mode. To find the values of n1 and n2 for any of the following commands, modify the procedure described for the select 60...

  • Page 114: Dp Emulation

    Ti model 855 printer dp emulation 6-1 printer operation commands ......................................................... 6-7 select dp mode ......................................................................... 6-7 select wp mode ....................................................................

  • Page 115

    Ti model 855 printer dp emulation 6-2 character pitch commands .......................................................... 6-13 set character pitch to 10 cpi ................................................... 6-13 set character pitch to 12 cpi ................................................... 6-13...

  • Page 116: Introduction

    Ti model 855 printer dp emulation 6-3 introduction this chapter describes the texas instruments model 855 printer data processing (dp) emulation mode. The model 855 dp emulation mode allows the model 8900 series printer to accept and respond to commands similar to those for common dot-matrix printer...

  • Page 117

    Ti model 855 printer dp emulation 6-4 q disabling the paper-out detection is not supported. Q the escape sequence for font selection is esc f n. The following table lists the model 855 dp commands. Model 855 dp commands command name command name printer operation esc@ select dp mode esc cr p select ...

  • Page 118

    Ti model 855 printer dp emulation 6-5 model 855 dp commands (continued) command name command name vertical motion lf line feed ff form feed vt tab vertically esc ^ move up one-half line esc v move down one-half line esc b n1...N16 nul set vertical tab stops esc b nul clear all vertical tab stops cha...

  • Page 119

    Ti model 855 printer dp emulation 6-6 model 855dp commands (concluded) command command name print enhancement (continued) esc g select boldface print esc h select boldface print esc e select shadow print esc f cancel shadow print color emulation esc r n select color (epson-jx compatible) esc c n sel...

  • Page 120

    Ti model 855 printer dp emulation 6-7 model 855 dp command descriptions the following paragraphs describe the ti 855 dp emulation commands. The command formats are listed following each command description. Many of the escape-sequence commands contain one or more variables to specify various command...

  • Page 121

    Ti model 855 printer dp emulation 6-8 select unidirectional printing escape sequence: esc u hexadecimal: 1b 75 this command causes the printer to print subsequent characters in the forward (left-to-right) direction only. Cancel unidirectional printing escape sequence: esc b hexadecimal: 1b 62 set mo...

  • Page 122

    Ti model 855 printer dp emulation 6-9 set form length to n lines escape sequence: esc c n hexadecimal: 1b 43 n the variable n is valid for any value in range of 1 through 127 for 7-bit character sets and 1 through 255 for 8-bit character sets. Example. To set the form length to 60 lines, send the se...

  • Page 123

    Ti model 855 printer dp emulation 6-10 the next character printed following a bs command over-strikes the most recently printed character. In the backward print mode, each bs control character moves the printhead to the right one space. The bs command can cause characters to be printed to the left o...

  • Page 124

    Ti model 855 printer dp emulation 6-11 move print position to left margin escape sequence: esc hexadecimal: 1b 3c this command moves the printhead to the left margin and causes the next print operation to be in the forward direction. Set horizontal tab stops escape sequence: esc d n1...N16 nul hexad...

  • Page 125

    Ti model 855 printer dp emulation 6-12 this command advances the paper to the top margin of the next page and causes the printer to perform a carriage return to the left edge (column 1), as set via the form configuration menu. Tab vertically control character: vt hexadecimal: 0b this command advance...

  • Page 126

    Ti model 855 printer dp emulation 6-13 set vertical tab stops escape sequence: esc b n1...N16 nul hexadecimal: 1b 42 n1...N16 00 this command clears all previously set vertical tabulation stops and sets a new stop at each of the lines specified by the variables n1...N16. Each of the variables n1 thr...

  • Page 127

    Ti model 855 printer dp emulation 6-14 set line spacing to 8 lpi escape sequence: esc 0 hexadecimal: 1b 30 set line spacing to 7/72 inch escape sequence: esc 1 hexadecimal: 1b 31 set line spacing to n/72 inch escape sequence: esc a n hexadecimal: 1b 41 n the variable n can be any value in the range ...

  • Page 128

    Ti model 855 printer dp emulation 6-15 escape sequence: esc t hexadecimal: 1b 54 select compressed print control character: si hexadecimal: 0f escape sequence: esc p hexadecimal: 1b 50 these commands reduce the width of subsequently printed characters to about 60 percent of their normal size. Cancel...

  • Page 129

    Ti model 855 printer dp emulation 6-16 cancel boldface print escape sequence: esc h hexadecimal: 1b 48 select shadow print escape sequence: esc e hexadecimal: 1b 45 in the shadow print mode, the printer double strikes all characters with a 1/120-inch horizontal offset. Cancel shadow print escape seq...

  • Page 130

    Ti model 855 printer dp emulation 6-17 to provide compatibility with ti 857 where n is an ascii value nul through ack (hexadecimal value 00 through 06 or decimal value 0 through 6). N = 0 for black n = 1 for blue n = 2 for red n = 3 for yellow n = 4 for green n = 5 for purple n = 6 for orange raster...

  • Page 131: Ibm Proprinter Xl Emulation

    Ibm proprinter xl emulation 7-1 7 ibm proprinter xl emulation introduction .................................................................................... 7-4 ibm proprinter xl emulation commands .................................... 7-5 ibm proprinter xl command descriptions ......................

  • Page 132

    Ibm proprinter xl emulation 7-2 disable automatic line feed ............................................. 7-14 reverse line feed .............................................................. 7-14 set vertical tab stops ......................................................... 7-14 clear vertical ta...

  • Page 133

    Ibm proprinter xl emulation 7-3 cancel subscript print ........................................................ 7-19 enable/disable double-high double-wide print .............. 7-20 considerations for using enable/diasble double-high double-wide print ...................................... 7-20 rast...

  • Page 134: Introduction

    Ibm proprinter xl emulation 7-4 introduction this chapter describes the ibm proprinter xl emulation mode. This emulation mode is selectable from the printer setup menu described in chapter 2. This mode enables your printer to emulate most of the functions of the ibm proprinter xl with the following ...

  • Page 135

    Ibm proprinter xl emulation 7-5 ibm proprinter xl emulation commands your printer, when operating in the ibm proprinter xl emulation mode, can respond to both escape-sequence commands and the standard us ascii control characters. The following table lists the ibm proprinter xl printer commands. Ibm ...

  • Page 136

    Ibm proprinter xl emulation 7-6 ibm proprinter xl commands (continued) command command name vertical motion lf line feed ff form feed vt tab vertically esc j n perform n/216 inch line feed esc 5 soh enable automatic line feed esc 5 nul disable automatic line feed esc ] reverse line feed esc b n1...N...

  • Page 137

    Ibm proprinter xl emulation 7-7 ibm proprinter xl commands (concluded) command command name print enhancement (continued) esc - nul cancel text-underline print esc _ soh select text-overscore print esc _ nul cancel text-overscore print esc g select boldface print esc h cancel boldface print esc e se...

  • Page 138

    Select printer control character: dc1 hexadecimal: 11 this command reselects the printer after it has received a deselect printer command, unless the printer has been placed offline via the control panel on line switch. Note: some ibm computers and ibm-compatible computers set parallel interface pin...

  • Page 139

    Ibm proprinter xl emulation 7-9 cancel unidirectional printing escape sequence: esc u nul hexadecimal: 1b 55 00 form format and margin control commands the form format commands let you select and set some form-related parameters. A single margin control command lets you set the left and right margin...

  • Page 140

    Ibm proprinter xl emulation 7-10 select automatic perforation skip escape sequence: esc n n hexadecimal: 1b 4e n this command causes the printer to perform the following actions. 1. Skip the number of lines specified by the variable n and the current form parameter settings. 2. Print the next line a...

  • Page 141

    Ibm proprinter xl emulation 7-11 horizontal motion commands the horizontal motion commands control the horizontal motion of the printhead, including the direction and distance of each movement. Backspace control character: bs hexadecimal: 08 this command causes the printer to print the current conte...

  • Page 142

    Ibm proprinter xl emulation 7-12 set horizontal tab stops escape sequence: esc d n1...N28 nul hexadecimal: 1b 44 n1...N28 00 this command clears all previously set horizontal tab stops and sets a new tab stop at each of the columns specified by the variables n1...N28. These variables must be listed ...

  • Page 143

    Ibm proprinter xl emulation 7-13 form feed control character: ff hexadecimal: 0c the form feed command causes the printer to print the current contents of the print buffer and then move the print-head to the first print line of the next form. Tab vertically control character: vt hexadecimal: 0b this...

  • Page 144

    Ibm proprinter xl emulation 7-14 disable automatic line feed escape sequence: esc 5 nul hexadecimal: 1b 35 00 reverse line feed escape sequence: esc ] hexadecimal: 1b 5d set vertical tab stops escape sequence: esc b nl...N64 nul hexadecimal: 1b 42 n1...N64 00 this command sets up to 64 vertical tab ...

  • Page 145

    Ibm proprinter xl emulation 7-15 set character pitch to 12 cpi escape sequence: esc : hexadecimal: 1b 3a this command selects 12 cpi character pitch for either draft or lq printing. Select programmable line spacing escape sequence: esc 2 hexadecimal: 1b 32 this command invokes the line spacing value...

  • Page 146

    Ibm proprinter xl emulation 7-16 character set commands the character set commands let you choose between the ibm pc1 and ibm pc2 character sets and print specified characters from either of these character sets. Select pc1 character set escape sequence: esc 7 hexadecimal: 1b 37 select pc2 character...

  • Page 147

    Ibm proprinter xl emulation 7-17 print enhancement commands the print enhancement commands enable your printer to improve or enhance the print quality. Print enhancements include such things as superscript and subscript text, text underlining and overscoring, and emphasized print to make the print a...

  • Page 148

    Ibm proprinter xl emulation 7-18 cancel compressed print control character: dc2 hexadecimal: 12 select letter-quality print escape sequence: esc i stx hexadecimal: 1b 49 02 escape sequence: esc i ack hexadecimal: 1b 49 06 cancel letter-quality print escape sequence: esc i nul hexadecimal: 1b 49 00 e...

  • Page 149

    Ibm proprinter xl emulation 7-19 cancel boldface print escape sequence: esc h hexadecimal: 1b 48 select shadow print escape sequence: esc e hexadecimal: 1b 45 cancel shadow print escape sequence: esc f hexadecimal: 1b 46 select superscript print escape sequence: esc s nul hexadecimal: 1b 53 00 after...

  • Page 150

    Ibm proprinter xl emulation 7-20 enable/disable double-high double-wide print escape sequence: esc [ @ n1 n2 n3 n4 m1 m2 hexadecimal: 1b 5b 40 n1 n2 n3 n4 m1 m2 where: n1 n2 = byte count; format is (n1 + (n2 * 256)) n3 n4 = no function, ignored m1 = line spacing and character height m2 = character w...

  • Page 151

    Ibm proprinter xl emulation 7-21 m1 data byte, bit 0 is least significant bits 0 and 1 = 00 current character height 01 standard character height 10 double character height 11 current character height bits 2 and 3 = xx don’t care bits 4 and 5 = 00 current line spacing 01 single line spacing 10 doubl...

  • Page 152

    Ibm proprinter xl emulation 7-22 select 60 dpi graphics escape sequence: esc k n1 n2 hexadecimal: 1b 4b n1 n2 this command selects the 8-pin, 60 dpi graphics mode for the horizontal line length specified by the two-byte variable n1 n2. Select 120 dpi graphics escape sequence: esc l n1 n2 hexadecimal...

  • Page 153

    Epson fx printer emulation mode 8-1 8 epson fx printer emulation mode introduction .................................................................................... 8-4 epson fx printer emulation commands ....................................... 8-6 epson fx emulation command descriptions ...........

  • Page 154

    Epson fx printer emulation mode 8-2 horizontal motion commands ................................................ 8-17 backspace ........................................................................... 8-17 tab horizontally ................................................................. 8-17 carr...

  • Page 155

    Epson fx printer emulation mode 8-3 enable character positions 0-31 and 128-159 as printable characters ......................................................... 8-26 disable character positions 0-31 and 128-159 as printable characters ......................................................... 8-26 p...

  • Page 156: Introduction

    Epson fx printer emulation mode 8-4 introduction this chapter describes the epson fx printer emulation mode. This emulation mode is selectable from the printer setup menu as described in chapter 2. This mode enables your printer to emulate most of the functions of an epson fx printer with the follow...

  • Page 157

    Epson fx printer emulation mode 8-5 — slashed zeros — off — the last form setting change made via the control panel is retained and restored at power -up. — the right-half character set defaults to pc1 at power-up. Q the following escape sequences are not supported: — the download characters command...

  • Page 158

    Epson fx printer emulation mode 8-6 epson fx printer emulation commands your printer, when operating in the epson fx emulation mode, can respond to both escape-sequence commands and the standard us ascii control characters. The following table lists the fx printer commands. Epson fx emulation comman...

  • Page 159

    Epson fx printer emulation mode 8-7 epson fx emulation commands (continued) command command name horizontal motion bs backspace ht tab horizontally cr carriage return esc $ n1 n2 set absolute print position esc \ n1 n2 set relative print position esc d nl...N32 nul set horizontal tab stops esc d nul...

  • Page 160

    Epson fx emulation commands (continued) command command name character set (continued) esc i soh enable character positions 0-31 and 128-159 as printable characters esc i nul disable character positions 0-31 and 128-159 as printable characters print enhancement so select expanded print for one line ...

  • Page 161: Epson Fx Emulation Command

    Epson fx printer emulation mode 8-9 epson fx emulation commands (concluded) command command name raster graphics esc k n1 n2 select 60 dpi graphics esc ^ nul n1 n2 select 9-pin 60 dpi graphics esc l n1 n2 select 120 dpi graphics esc ^ soh n1 n2 select 9-pin 120 dpi graphics esc y nl n2 select high-s...

  • Page 162

    Epson fx printer emulation mode 8-10 select printer control character: dc1 hexadecimal: 11 this command reselects the printer after it has received a deselect command, unless the printer has been placed offline via the control panel on line switch. Deselect printer control character: dc3 hexadecimal...

  • Page 163

    Epson fx printer emulation mode 8-11 initialize printer escape sequence: esc @ hexadecimal: 1b 40 this command resets the printer to its initial state and clears the print buffer of all printable data from the last line printed before the command was received. Set most significant bit to zero escape...

  • Page 164

    Epson fx printer emulation mode 8-12 cancel most significant bit control escape sequence: esc # hexadecimal: 1b 23 this command cancels printer control of the received character msb and returns control to the computer. This enables the computer to select characters from either the gl half or the gr ...

  • Page 165

    Epson fx printer emulation mode 8-13 form format commands the form format commands let you set the form length in either lines or inches. These commands also let you enable or disable the automatic perforation skip feature. Set form length to n lines escape sequence: esc c n hexadecimal: 1b 43 n thi...

  • Page 166

    Epson fx printer emulation mode 8-14 example. If the current form length setting is 66 lines and the current line spacing is 6 lpi, setting the value of n to 6 causes the printer to do the following. 1. Print 60 lines on the current form. 2. Skip 6 lines at the bottom of the current form. 3. Print t...

  • Page 167

    Epson fx printer emulation mode 8-15 margin control commands the margin control commands let you set parameters related to the left, right, bottom, and top margins and control print justification and text centering. Select left margin justification escape sequence: esc a nul hexadecimal: 1b 61 00 th...

  • Page 168

    Epson fx printer emulation mode 8-16 set left margin at column n escape sequence: esc 1 n hexadecimal: 1b 6c n this command sets the left margin at the position specified by the variable n. The minimum distance between the left and right margins is the width of one expanded 10 cpi character. Invokin...

  • Page 169

    Epson fx printer emulation mode 8-17 horizontal motion commands the horizontal motion commands control the horizontal motion of the printhead, including direction and distance of each movement. The following paragraphs describe the horizontal motion commands. Backspace control character: bs hexadeci...

  • Page 170

    Epson fx printer emulation mode 8-18 set absolute print position escape sequence: esc $ n1 n2 hexadecimal: 1b 24 n1 n2 this command sets the first character position of subsequently printed text at 1/60 inch or some multiple of 1/60 inch from the currently set left margin. The variables n1 and n2 fo...

  • Page 171

    Epson fx printer emulation mode 8-19 set horizontal tab stops escape sequence: esc d n1...N32 nul hexadecimal: 1b 44 n1...N32 00 this command clears all previously set horizontal tab stops and sets a new tab stop at each of the columns specified by the variables n1...N32. Each of the variables n1 an...

  • Page 172

    Epson fx printer emulation mode 8-20 form feed control character: ff hexadecimal: 0c this command causes the printer to print the current print buffer contents and then move the printhead to the first print line of the next form. Tab vertically control character: vt hexadecimal: 0b this command adva...

  • Page 173

    Epson fx printer emulation mode 8-21 select vertical tab channel escape sequence: esc / c hexadecimal: 1b 2f c this command selects one of the eight preset vtcs. The printer subsequently uses this vtc for all vertical tab operations. The variable c specifies the vtc number (0 through 7). Set vtc tab...

  • Page 174

    Epson fx printer emulation mode 8-22 character pitch commands the character pitch commands let you choose between 10 and 12 cpi or adjust the horizontal spacing between characters. The character pitch is the horizontal distance from the center of one character to the center of the next character. Se...

  • Page 175

    Epson fx printer emulation mode 8-23 line spacing commands the line spacing commands let you choose between line spacing values of 6 or 8 lpi or any of several fractional line spacing values. The line spacing is the vertical distance between print lines. Set line spacing to 6 lpi escape sequence: es...

  • Page 176

    Epson fx printer emulation mode 8-24 set line spacing to n/216 inch escape sequence: esc 3 n hexadecimal: 1b 33 n this command sets the line spacing to a value in the range of 0/216 through 255/216 (0 through 1.18) inches for subsequent line feed operations. Character set commands the character set ...

  • Page 177

    Epson fx printer emulation mode 8-25 select international character set escape sequence: esc r n hexadecimal: 1b 52 n this command selects, for either draft or lq printing, the international version of the ascii character set specified by the variable n. The variable n can be any of the following va...

  • Page 178

    Epson fx printer emulation mode 8-26 enable character positions 0-31 and 128-159 as printable characters escape sequence: esc i soh hexadecimal: 1b 49 01 this command enables the printer to treat the characters in character positions 0-31 (c0 control characters) and 128-159 (c1 control characters) a...

  • Page 179

    Epson fx printer emulation mode 8-27 cancel expanded print control character: dc4 hexadecimal: 14 this command cancels the expanded print mode previously selected by the select expanded print for one line commands (so or esc so). However, this command does not affect the expanded print mode invoked ...

  • Page 180

    Epson fx printer emulation mode 8-28 these commands cause the printer to print characters at about 60 percent of their normal widths. For example, for a character pitch of 10 cpi, one inch of text contains about 17 characters instead of the normal 10. These commands are valid for either draft or lq ...

  • Page 181

    Epson fx printer emulation mode 8-29 cancel boldface print escape sequence: esc h hexadecimal: 1b 48 select shadow print escape sequence: esc e hexadecimal: 1b 45 cancel shadow print escape sequence: esc f hexadecimal: 1b 46 select superscript print escape sequence: esc s nul hexadecimal: 1b 53 00 t...

  • Page 182

    Select italic print escape sequence: esc 4 hexadecimal: 1b 34 this command causes the printer to print characters from the epson italic character set for either draft or lq printing. This command is valid even if the printer has received an esc t soh command to invoke the epson extended graphics cha...

  • Page 183

    Epson fx printer emulation mode 8-31 to select a valid combination of the listed character pitches and print modes, choose the items you wish to combine and add their values to find the correct value of n. After finding the decimal value of n, convert this value to its hexadecimal equivalent for use...

  • Page 184

    Epson fx printer emulation mode 8-32 select 9-pin 60 dpi graphics escape sequence: esc ^ nul n1 n2 hexadecimal: 1b 5e 00 n1 n2 this command causes the printer to print 9-pin graphics at 60 dpi. Select 120 dpi graphics escape sequence: esc l n1 n2 hexadecimal: 1b 4c n1 n2 this command selects the 8-p...

  • Page 185

    Epson fx printer emulation mode 8-33 select graphics mode m escape sequence: esc * m n1 n2 hexadecimal: 1b 2a m n1 n2 this command selects the graphics mode specified by the variable m for the horizontal distance specified by the two-byte variable n1 n2. The variable m can be any of the following va...

  • Page 186

    Optional emulation commands 9-1 9 optional dec la 120 emulation introduction .................................................................................... 9-2 dec la120 emulation commands ............................................... 9-2 answerback memory function .............................

  • Page 187: Introduction

    Optional emulation commands 9-2 introduction this chapter describes the optional dec la120 emulation mode. An optional emulation mode is selectable from the printer setup menu described in chapter 2 or by global commands described in chapter 3. Dec la120 emulation commands this mode enables your pri...

  • Page 188

    Optional emulation commands 9-3 dec la120 commands (continued) command command name form format and margin control esc [ n t set form length to n lines esc [ n r set top margin to line n esc [ ; n r set bottom margin to line n esc [ n1; n2 r set top and bottom margins to line n1 and line n2 esc [ n ...

  • Page 189

    Optional emulation commands 9-4 dec la120 commands (concluded) command command name horizontal pitch sequences (continued) esc [ 2 w set character pitch to 12 cpi esc [ 3 w set character pitch to 13.2 cpi esc [ 4 w set character pitch to 16.7 cpi vertical tab sequences esc [ n d set active line to l...

  • Page 190: Answerback Memory Function

    Dec la120 commands not recognized in dec la120 emulation command command name esc = enable alternate keyboard esc > disable alternate keyboard eot end of transmission sub substitute dle data link escape answerback memory function the dec la120 emulation provides, as an la120 feature, an answerback m...

  • Page 191: Auto Wrap

    When lf new line is selected and a line feed command is received, a carriage return is performed in addition to the line feed. Carriage returns are also performed with vertical tabs and form feeds when lf new line is selected. For the no new line selection, a carriage return only is performed upon r...

  • Page 192: Communication Interfaces

    Communication interfaces 10-1 introduction .................................................................................. 10-3 data-transfer operations ............................................................. 10-4 parallel communication interface ...............................................

  • Page 193

    Communication interfaces 10-2 interface data transmission rate .......................................... 10-18 serial data format ................................................................. 10-18 serial interface busy-handling protocols ............................. 10-20 flow-control busy-ha...

  • Page 194: Introduction

    Communication interfaces 10-3 introduction this chapter describes the communication interfaces and provides information about their use with your printer. The communication interface transfers data in a fixed and orderly manner between the host and the printer. Communication interfaces are of two ge...

  • Page 195: Data-Transfer Operations

    Communication interfaces 10-4 the following figure shows simplified block diagrams of two types of data-communication systems and their associated communication interfaces. The long-distance system typically uses telephone lines to transfer data from the host to the printer. Because this system is l...

  • Page 196

    Communication interfaces 10-5 the following figure shows a simplified block diagram of the printer receive buffer and the data path between the host and the print mechanism. The host transfers characters in the form of 7-bit or 8-bit data bytes, depending on which character set is selected. To ensur...

  • Page 197

    Communication interfaces 10-6 parallel communication interface the parallel communication interface uses a 36-pin connector (shown in the following figure) that transfers both data and control signals between the printer and the host computer. The parallel interface connector is located at the rear ...

  • Page 198

    Communication interfaces 10-7 parallel interface signals signal name pin return source strobe- data strobe 1 19 host data1 data bit 1 2 20 host data2 data bit 2 3 21 host data3 data bit 3 4 22 host data4 data bit 4 5 23 host data5 data bit 5 6 24 host data6 data bit 6 7 25 host data7 data bit 7 8 26...

  • Page 199

    Communication interfaces 10-8 data signals character transfers from the host to the receiver consist of 8-bit data bytes (datal through data8) traveling in parallel over the eight data lines. Datal is the least significant bit and data8 is the most significant bit. If a 7-bit character set has been ...

  • Page 200

    Communication interfaces 10-9 busy signal this active-high signal from the printer indicates that the printer is busy and cannot accept additional data. During data-transfer operations, the leading edge of the host-generated strobe signal activates busy for each character-transfer cycle. The printer...

  • Page 201

    Communication interfaces 10-10 paper-empty signal the paper-empty (pe) signal from the printer indicates that the paper supply is empty. The printer activates this signal in combination with the fault signal to indicate the paper-empty condition to the host. Select signal the select (slct) signal fr...

  • Page 202

    Communication interfaces 10-11 the following figure shows the timing sequence for host-to-printer character-transfer operations. The table on the following page lists the timing requirements for the operation. The reference points, a through h in the preceding figure, are keyed to the table on the f...

  • Page 203

    Communication interfaces 10-12 3. The printer activates ack- (e) to signal the host that the receive buffer has received the character. 4. If the character does not fill the receive buffer, the printer deactivates busy and ack- (f) to notify the host that the transfer operation is complete. The host...

  • Page 204

    Communication interfaces 10-13 parallel interface timing requirements (continued) item ref. Timing requirements f trailing edge must occur before the host can strobe the next character into the receive buffer. For normal write cycles (receive buffer not full), this occurs at 10 µ s min., 500 µ s nom...

  • Page 205

    Communication interfaces 10-14 error conditions fault- and pe are printer status lines. The printer activates fault- to indicate a mechanism failure, such as a paper jam, and deactivates it when the error is corrected. After the paper supply is depleted, the printer activates both pe (paper empty) a...

  • Page 206

    Serial interface connector the serial communication interface transfers either 7-bit or 8-bit character information in an asynchronous, bit-serial format. This format is useful for transferring data over long distance lines via data communication devices such as modems, but it can also be used to tr...

  • Page 207

    Communication interfaces 10-16 interface signal descriptions the following paragraphs describe the serial interface signals. Protective ground the protective ground (pg) line is connected directly to the power cord ground to provide protection for the equipment and personnel. Signal ground the signa...

  • Page 208

    Communication interfaces 10-17 clear to send signal the host computer generates the clear to send (cts) signal to indicate that it can receive data from the printer. In the direct connect mode, the printer ignores this signal. In the modem connect mode, cts must be on for the printer to send data. I...

  • Page 209

    Communication interfaces 10-18 interface data transmission rate because data-transfer operations on the serial interface occur in a bit-serial fashion, the data transmission rate is measured in bits per second, commonly called the baud rate. To provide compatibility with a variety of systems, your p...

  • Page 210

    Communication interfaces 10-19 in addition to the data bits, each character contains the following bits. Q start bit — a bit immediately preceding the character bits that signals the start of the asynchronous data transmission. Q parity bit — a bit immediately following the character bits that allow...

  • Page 211

    Communication interfaces 10-20 serial interface busy-handling protocols the serial interface provides several methods for the printer to indicate its ready and busy conditions. The communication interface menu, described in chapter 2 of this manual, allows you to select any of these methods during p...

  • Page 212

    Communication interfaces 10-21 this busy-handling protocol should not be selected for an emulator that requires that etx be used as a graphics character or as part of a printer command. Direct-connect busy-handling protocols the control panel menu structure offers the following choices of busy-handl...

  • Page 213

    Rs-422 communication interface the rs-422 serial communication interface handles data structures of the same format as those for the serial communication interface. However, the rs-422 interface can transfer data over distances of up to 4000 feet (1219 meters) with minimal noise interference. Curren...

  • Page 214: Application Instructions

    Application instructions a-1 z-axis adjustment escape sequence introduction the model 8900 series printers sense top, left, and right edges plus thickness when a form is loaded. These settings provide the location of printout on the form such as top, bottom, left, and right margins and locations of ...

  • Page 215

    Application instructions a-2 considerations for z-axis adjustments the following considerations (plus dos and don’ts) should be given for z-axis adjustments. Caution: this escape sequence is designed for use by technically oriented software users to print on forms with multiple thicknesses and is no...

  • Page 216

    Application instructions a-3 q valid z-axis adjustment values are 00 through 99 from the automatic z-axis initialization adjustment (00) in positive or negative directions (-99 through +99). Q note the location of the z-axis initialization whenever paper stock is changed or tractors are moved, to de...

  • Page 217

    Application instructions a-4 escape sequence — z-axis printhead position escape sequence: esc dle z s nn hexadecimal: 1b 10 7a s nn where: s = “+” or “-” as the sign of the displacement (positive or negative). Nn = ascii values of the two digit number of the range from initialization. Note: the esca...

  • Page 218

    Application instructions a-5 880 emulation commands for 880 emulation, send the following code and text. Note: for this example, printing can be continuous, within the margins, on every line of the page. Esc [ 7 ; 54 r — prints first print line on line 7, last print line at line 54. Esc [ 11 ; 75 s ...

  • Page 219: Index

    Index 1 a adjusting the z-axis position .................... 3-29 answerback memory dec la120 emulation ...................... 9-5 answerback memory message load ...................................... 9-6 auto wrap .................................................... 9-6 b barcode operations ..........

  • Page 220

    Communication interface optional .................................. 1-4, 10-21 parallel .............................................. 10-6 serial ............................................... 10-14 standard .............................................. 1-4 compressed print .......... 5-19, 6-15,...

  • Page 221

    Index 3 j justification full .................................................... 8-15 left margin ........................................ 8-15 right margin ................... 5-12, 5-14, 8-15 l language, lcd .......................................... 2-17 length, form ...............................

  • Page 222

    Index 4 printer features ............................................ 1-3 printing bidirectional ..................................... 8-12 color ......................................... 1-4, 3-22 reverse .............................................. 5-10 unidirectional ........................ 4-...

  • Page 223

    Index 5 u unidirectional printing ................... 4-14, 5-10, ........................................... 6-8, 7-8, 8-12 v variables .................................................... 4-10 vertical line spacing .................................. 4-27 vertical motion index (vmi) ............ 5-...

  • Page 224

    Pf scan line setup in 144th-inch increments. Range is 1.5” to 10” right edge line w idth page finder scan line p /o detection overdrive comp. Reset form adjust adjust standard adjust con- tinuous an o to f only by es disabled c pre- printed form config form select print qual. Paper path a b c d f g ...