Epson ACULASER COLOR 1000, Service Manual

Page: 131 / 230

EPSON AcuLaser C2000 / AcuLaser C1000 Revision E
Troubleshooting Printer Message 131
Developer Rack Rotation is Abnormal
1. When initializing the toner rack position, if the rack black position sensor
(PC6) does not become ON within 3 seconds, it is detected that toner rack
is abnormal.
2. When the black toner should be at the development position, if the rack
black position sensor (PC6) does not become ON within 0.3 seconds, it is
detected that the toner rack is abnormal.
3. When the rack black position sensor (PC6) becomes ON within 0.3
seconds after the rack motor (M3) is halted, it is detected that the toner
rack is abnormal.
Multi Manual Paper Load Push-up is Abnormal
1. MPT push-up tray position is detected while loading paper from the manual
tray.
2. If the output of the manual tray upper position sensor (PC15) does not
change even after the specified amount of time passed after the manual
tray paper load solenoid (SL8) becomes ON, it is detected that the MPT
push-up plate is abnormal.
OHP Sensor is Abnormal
1. OHP sensor is detected while the transportation motor (M1) is pre-rotating.
2. Since no paper exist during the pre-rotation, if the sensor detects it is not
OHP, it detects that the OHP sensor is abnormal.
No. Check Item Solution
1
During printing, does the rack
motor (M3) rotate? No Remove connector PJ32A, PJ33A
and insert it again.
Remove connector PJ41 and insert it
again.
2
With the power off, press the rack
release button and check if you
can rotate the toner rack
manually. Yes
Replace the rack black position
sensor (PC6).
Others Replace PWB-A.
No. Check Item Solution
1
Does the manual tray push paper
to the paper load roller?
No Arrange paper on the manual tray.
2
Does the manual tray paper load
roller one-way clutch have the
claws? No Replace the one-way clutch gear.
Yes Replace the manual tray paper load
solenoid.
Others Replace PWB-A.
No. Check Item Solution
1
Are the light emission window
and light receiving window of
OHP sensor dirty?
No Clean the OHP sensor window.
2
Does any dust or a bit of paper
attach on the other side OHP
sensor reflective window? Yes
Clean the OHP sensor reflective
window.
Others Replace PWB-A.