Cyclic Print Trouble (Refer To Fig.7.2 E) - Oki C810 Maintenance Manual

Oki Data CONFIDENTIAL

7.5.3.(5) Cyclic Print Trouble (Refer to Fig.7.2 E)

(5-1) Vertical cyclic print trouble
Confirmation Items
(5-1-1) Periodicity
Image drum Check to see if the periodicity is 94.3 mm or
not.
Development roller Check to see if the periodicity is 39.7 mm or not.
Toner supply roller Check to see if the periodicity is 58.4 mm or
not.
Charging roller Check to see if the periodicity is 37.7 mm or not.
Roller on the fuser Check to see if the periodicity is 87.7 mm or not.
unit
Fuser belt Check to see if the periodicity is 125.5 mm or
not.
Transfer roller Check to see if the periodicity is 50.3 mm or
not.
44072903TH Rev.1
Confirmation Tasks Action at NG
Replace the ID
unit.
Replace the ID
unit.
Replace the ID
unit.
Replace the ID
unit.
Replace the
fuser unit.
Replace the
fuser unit.
Replace the belt
unit.
To use a new
consumable part
on a trial basis,
use FUSE KEEP
MODE of the
System
Maintenance
Menu.
7.5.3.(6) Color registration is wide.
(6-1) "IN ADJUSTING COLOR REGISTRATION" is shown only a short time
Confirmation Items
(6-1-1) Color registration result
Color registration Execute REG ADJ UST TEST in the self-
time diagnostic mode, and check the result.
(Approx. 40 sec if Any error issued is not displayed if the ONLINE
normal) indication is on.
(6-1-2) Toner
Remaining quantity Check to see if "ORDER TONER" or "REPLACE
of toner TONER" is displayed on the operator panel.
(6-1-3) Color registration sensor
Dirty sensor Check to see if the sensor has toner or paper
chips sticking.
(6-1-4) Color registration sensor shutter
Defects of the Check the shutter operation in the self-
shutter operation diagnostic mode.
(6-2) Although REG ADJUST TEST of the engine maintenance function is OK, Color
drift is seen
Confirmation Items
(6-2-1) Paper feed system
State of paper feed Check to see if there is anything on the paper
system of running feed route that hinders the paper from running.
route
7. TROUBLESHOOTING PROCEFRURES
Confirmation Tasks Action at NG
Replace the
sensor that
originated NG.
Clean the
sensor.
Replace the
shutter.
Replace the PU
PCB.
Replace the
toner cartridge
with a new one.
Wipe off the dirt.
Replace the
shutter or modify
the mechanism.
Confirmation Tasks Action at NG
Remove the
obstacle.
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