Oki OKIPAGE8c Maintenance Manual page 144

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Dirty stained ground (Figure 6.2-B)
• Each image drum exposed to external lights for a long time?
Yes Replace the image drum unit or put the image drum unit in the printer and close the upper
cover and wait for 15min.
Note: After replacing the image drum unit, be sure to reset its counter.
• No Is the Roller of the fusing unit (heat roller, oil roller, or cleaning oil roller) contaminated?
Yes Replace the fusing unit or the oil roller assembly.
• No Is the setting of "MEDIA TYPE" (in menu 1) correct?
LIGHT:60g/m
HEAVY:105g/m
No Set the "MEDIA TYPE" correctly.
• Yes Is the setting of the LED head drive time correct?
No Set the LED head drive time correctly.
• No Is Each LED head assembly connected correctly to the junction board (PD6 PCB)?
No Connect the LED assembly correctly to the junction board (PD6 PCB) correctly.
• Yes Is +3.3V on the following pins of the HEADPOW connector of the junction board (PD6 PCB)
being supplied?
+3.3V: Pin 1, 2, 3, 4, 5, 6
• Yes Is +3.3V being supplied on the following pins of the cable connector between the junction
board (PD6 PCB) and each LED head assembly?
Pins 1, 2, 3, 4, 5 and 6 of the YPOW connector for the yellow LED head assembly
Pins 1, 2, 3, 4, 5 and6 of the MPOW connector for the magenta LED head assembly
Pins 1, 2, 3, 4, 5 and 6 of the CPOW connector for the cyan LED head assembly
Pins 1, 2, 3, 4, 5 and 6 of the BPOW connector for the black LED head assembly
No Replace the junction board (PD6 PCB).
• Yes Check the connection of the cables or replace the LED head assembly.
• No Is +3.3V on the following pins of the HEADPOW connector of the engine board (PX4 PCB)
being supplied?
+3.3V: Pin 1, 2, 3, 4, 5, 6
Yes Replace the HEADPOW cable.
• No Is +3.3V on the following pins of the POWER connector of the engine board (PX4 PCB)
being supplied?
Yes Replace the engine board.
• No Check the connection of the cables or replace the low-voltage power supply. Recovered?
Yes End
• No Is +32V on the power connector of the engine board (PX4 PCB) being supplied?
A
+32V: Pin 7, 8, 9, 10
2
LIGHT MIDIUM:67.5g/m
2
ULTRA HEAVY:120g/m
6 - 31
2 2
MEDIUM:75g/m MEDIUM HEAVY:90g/m
2
TRANSPARENCY:OHP
2