Service manual

7-63
CHAPTER 7 TROUBLESHOOTING PROCEDURES
(6) Color registration is wide.
(6-1)"IN ADJUSTING COLOR REGISTRATION" is shown only a short time
Color registration time
(Approx. 50 sec if normal)
Remaining quantity of toner
Dirty sensor
Defects of the shutter
operation
Confirmation Tasks
Execute REG ADJ UST TEST in the self-diagnostic mode, and
check the result.
Any error issued is not displayed if the ONLINE indication is on.
Check to see if "ORDER TONER" or "REPLACE TONER is
displayed on the operator panel.
Check to see if the sensor has toner or paper chips sticking.
Check the shutter operation in the self-diagnostic mode.
Action at NG
Replace the sensor
that originated NG.
Clean the sensor.
Replace the shutter.
Replace the PU PCB
(PRX PCB).
Replace the toner
cartridge with a new
one.
Wipe off the dirt.
Replace the shutter or
modify the mechanism.
(6-1-1) Color registration result
(6-1-2) Toner
(6-1-3) Color registration sensor
(6-1-4) Color registration sensor shutter
Confirmation Items
(6-2)Although REG ADJUST TEST of the engine maintenance function is OK, Color drift is seen
State of paper feed system of
running route
Confirmation Tasks
Check to see if there is anything on the paper feed route that
hinders the paper from running.
Action at NG
Remove the obstacle.
(6-2-1) Paper feed system
Confirmation Items