Oki C9850 Maintenance Manual page 208

Band or stripe appears in vertical direction of the printed area. (Black Band, Color Band,
Black Stripe, Color Stripe) (Figure 7-2
• Are all LED head Assy parts properly connected to the relay PCB (S2H PWB) and engine PCB
(S2V PWB)?
NO
• YES Replace the LED head.
Has the problem been corrected?
YES
• NO Replace the head shield cable.
Has the problem been corrected?
YES
• NO Check the cable connection. Then replace the engine PCB (S2V PWB).
Has the problem been corrected?
YES
• NO Check the cable connection, then replace the , Engine PCB (S2V PWB).
Has operation been restored?
YES
• NO Is the I/D unit terminal properly connected to the contact Assy?
(Refer to Figure 7-3)
NO
• YES Replace Image Drum Unit.
1. When replacing the Engine PCB (S2V PWB), remove the EEPROM from the old
Note!
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
Check the cable connection of the LED and the cable connection between
the relay PCB and engine PCB, then properly connect the cable between the
LED head and engine PCB.
END
END
END
END.
Properly connect the I/D unit terminal to the contact Assy.
)
Oki Data CONFIDENTIAL
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