Oki C9850 Maintenance Manual page 215

(B)
• [Yellow, Magenta, Cyan Left/Right/Horizontal] display
• YES
• NO
• NO
• NO
• YES
• NO
• NO
• NO
• NO
• YES
Note! 1. When replacing the Engine PCB (S2V PWB), remove the EEPROM from the old
PCB, then mount that EEPROM on the new PCB.
2. If the EEPROM is not going to be replaced, refer to Section 5.2.2.
43627911TH Rev. 3
Replace the belt unit. Has operation been restored?
YES END
Replace the ID unit. Has operation been restored?
YES END
Is the gear abnormal? (I/D, Multipurpose Tray, Belt Unit, Belt Motor, etc.
gear Assy)
YES Replace the damaged gear Assy.
LED head Unit PCB (S2H PWB) connection properly connected?
NO LED head Unit PCB connection Connect properly.
Check the cable connection, then replace the LED head Assy. Has op-
eration been restored?
YES END
Check the cable connection, Replace the PCB (S2H PWB) connection.
Has operation been restored?
YES END
Is the Engine PCB (S2V PWB) properly connected to the PCB (S2H PWB)?
NO Properly connect the engine PCB to the PCB connection.
Replace the engine PCB. Has operation been restored?
YES END
Is the I/D unit terminal properly connected to the contact Assy?
(Refer to Figure 7-3)
NO Properly connect the I/D unit terminal to the contact Assy.
Replace Image Drum Unit.
Oki Data CONFIDENTIAL
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