Service manual

QMS 3260/4032 Laser Printer - Base Engine Technical Manual 3-29
Services Release Version 11-97
Primary FIPS: Error Codes
3.22 Error Code E4-3
There is a paper jam at the Face Up Exit Switch.
Logic Control on the MCU PWB sensed that during Duplex Mode the Face Up Exit Sensor did not deactu-
ate within the specified time after the Sensor actuated.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The followin
g
components are associated with this specific
problem. One or more of these components ma
y
have failed
partiall
y
or completel
y
. If
y
ou cannot isolate the problem usin
g
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 Dia
g
nostic Mode - Input H/L 10-24.
2. Manuall
y
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 Dia
g
nostic 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?
Go to step 4 Replace the
Offset Unit
Assembl
y
(
RRP 7.1
)
4
DUPLEX UNIT INSPECTION
Examine the Duplex Unit operation.
Is the Duplex Unit functioning correctly, and the rollers are
feeding paper from the Offset Unit into the Duplex Unit?
Treat prob-
lem as an
intermittent
Go to the
Duplex Unit
Technical
Manual and
troubleshoot
the problem