Specifications

3
Flowcharts and TablesTroubleshooting
Light/Faded Image (Continued)
Step Check Result Action
9 Replace the DC controller
board. Does the print
quality improve?
Ye s
No
Problem solved.
Replace the toner cartridge sensor
and high-voltage power supply cable.
If the problem persists, replace the
high-voltage power supply.
Table 18. Dark Image Over Entire Page
Step Check Result Action
1 Replace the toner cartridge.
Does the print quality
improve?
Yes Problem solved.
2 Is the transfer roller dirty? Yes Replace the transfer roller.
3 Connect the multimeter
between connectors P15-7
and P15-1 on the DC
controller board. Does the
voltage measure +24 VDC
when you switch on the
printer.
No Go to Table 11, Power Supply Failure
(+24 VDC).
4 Remove the top cover, side
covers, rear cover, I/O
board mount, and the
power switch lever.
Remove the high-voltage
contact assembly and
check the continuity on all
the high-voltage contacts.
Do you find continuity on all
the high-voltage contacts?
No Replace the high-voltage contact
assembly.
5 Replace the DC controller
board. Does the print
quality improve?
Ye s
No
Problem solved.
Replace the toner cartridge sensor
and high-voltage power supply cable.
If the problem persists, replace the
high-voltage power supply.