Service manual

3-
28 QMS 3260/4032 Laser Printer - Base Engine Technical Manual
Release Version 11-97
Primary FIPS: Error Codes
3.21 Error Code E4-1
There is a paper jam at the Face Up Exit Sensor
Logic Control on the MCU PWB sensed that during Face-Down-Mode the Face Up Exit Sensor did not
deactuate within the specified time after the Sensor actuated.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The following components are associated with this specific
problem. One or more of these components may have failed
partially or completely. If you cannot isolate the problem using
this FIP, replace each component listed below, one at a time,
until the problem disappears.
•
wiring and connectors linking the components
1
PAPER TRAVEL INSPECTION
1. Remove the Fuser Full Cover (RRP 1.1).
2. Observe the position of the sheet of paper.
Did the sheet of paper stop on the Face Up Exit Sensor?
Go to step 3 Go to step 2
2
FACE UP EXIT SENSOR TEST
1. Enter Diagnostic Mode - Input H/L 10-24.
2. Manually actuate and deactuate the Face Up Exit Sensor.
Does the Control Panel LCD display H when you insert the
paper into the Face Up Exit Sensor, and does the LCD dis-
play L when you remove the paper?
Replace the
MCU PWB
(RRP 9.7)
Replace the
Face Up Exit
Sensor (RRP
7.5)
3
FACE UP CLUTCH TEST
1. Enter Diagnostic Mode - Output Test 10-53 to check the
Face Up Clutch function.
2. Hand rotate (counter clockwise) the Main Motor.
Do the Offset Rollers rotate?
Refer to the
wiring dia-
grams Section
14 and check
for a broken
wire or loose
connection
between com-
ponents
Replace the
Offset Unit
Assembly
(RRP 7.1)