Oki MC770 series Maintenance Manual - page 81

45376001TH  Rev.1 

80 /

Oki  Data  CONFIDENTIAL

4.  Component replacement

③

①

③

④

④

HeadCable

⑤

②

②

4.2.12  Top cover Assy

(1)  Remove the right side cover. (See section 4.2.3)

(2)  Remove the left side cover. (See section 4.2.4)

(3)  Remove the rear cover. (See section 4.2.7)

(4)  Remove the plate shield and take the CU/PU PCB out. (See section 4.2.9)

(5)  Remove the connectors of the stack full sensor cable and ID-FAN cable, remove 

the connector and the hanging RFID cable ① .

(6)  Remove the two screws (silver,No:42920406) ② and remove Head-cable.

(7)  Remove two E type stop rings ③ and two torsion springs ④ , and remove the 

top cover Assy ⑤ .

Notes!

฀ •฀ Perform฀the฀following฀RFID฀circuit฀behavior฀check฀after฀replacement฀of฀

the top cover assy:

•฀ By฀executing฀RFID฀COLOR฀for฀the฀switch฀scan฀test฀described฀in฀5.3.1.3,฀

check that the printer can display UID **H for each of cyan, magenta, 

yellow and black with nonempty consumable cyan, magenta, yellow and 

black toner cartridges installed in it. The printer cannot detect the UID 

usage for a color with a starter toner cartridge installed for the color. 

Note the printer’s starter cartridge for a color cannot be reinstalled in it 

once replaced with an empty consumable toner cartridge for the color.