Print Quality Problems Appear Periodically (See Fig. 7-2 E); Print Quality Problems Appear Vertically And Periodically; Color Misregistration Is Significant; The Message "Adjusting Color" Displayed At Power On Stays For A Short Time - Oki MC362w Maintenance Manual

Oki Data CONFIDENTIAL

7.5.6 (5) Print quality problems appear periodically (see Fig. 7-2 E).

(5-1) Print quality problems appear vertically and periodically.

Check item
(5-1-1) Cycle
Image drum Check if the cycle is 94.3 mm.
Developing roller Check if the cycle is 30.2 mm.
Toner supply roller Check if the cycle is 43.1 mm.
Charging roller Check if the cycle is 29.9 mm.
Roller above the Check if the cycle is 85.4 mm.
fuser
Fuser belt Check if the cycle is 94.2 mm.
Transfer roller Check if the cycle is 37.7 mm.
44952001TH Rev.2
Checking method Action in case of NG
Replace any
applicable ID unit.
Replace any
applicable ID unit.
Replace any
applicable ID unit.
Replace any
applicable ID unit..
Replace any
applicable fuser unit.
Replace any
applicable fuser unit.
Replace the belt unit.
When using any new
consumable as a try,
select FUSE KEEP
MODE of the system
maintenance menu.

7.5.6 (6) Color misregistration is significant.

(6-1) The message "Adjusting color" displayed at power on stays for a short time.

Check item Checking method
(6-1-1) Color registration adjustment result
Time of color Execute REG ADJUST TEST in the self-
registration diagnostic mode and check the result.
adjustment (if it is Even if an error has occurred, it is not
normal, correction displayed when ON LINE is displayed.
takes about 40
seconds)
(6-1-2) Toner
Remaining toner Check the operator panel if it displays
amount "Prepare to replace the toner cartridge" or
"Replace the toner cartridge."
(6-1-3) Color registration sensor
Dirty sensor Check the sensor if it is dirty with toner or
paper dust.
(6-1-4) Color registration sensor shutter
Malfunction of the Check shutter operation in the self-
shutter diagnostic mode.
(6-2) Although the REG ADJUST TEST result of the engine maintenance function is OK,
color misregistration occurs.
Check item Check operation
(6-2-1) Feeding system
Paper feed state in Check the paper feed path if there is
the paper feed path something that blocks the paper in the paper
feed path.
7. TROUBLESHOOTING PROCEDURES
Action in case of NG
Replace the sensor if
the result shows NG.
Clean the sensor.
Replace the shutter.
Replace the CU/PU
board.
Replace an applicable
toner cartridge with a
new one.
Wipe them off.
Replace the shutter or
repair the mechanism.
Actions for NG results
Remove the blocking
object.
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