Service manual

QMS 3260/4032 Laser Printer - Base Engine Technical Manual 3-3
Services Release Version 11-97
Primary FIPS: Error Codes
3.1 Error Code U1-1
There is a problem with the Main Motor.
Logic Control on the MCU PWB detected a problem with the Main Motor.
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.
•
LVPS Assembly (RRP 9.1)
1
DRIVE ASSEMBLY INSPECTION
1.
Remove the Rear Cover (RRP 1.3) so you can observe the
Main Motor and Drive Assembly.
2. Hand rotate
(
counter clockwise
)
the Main Motor.
Can you easily rotate the Main Motor and do all of the
gears on the Main Drive Assembly rotate freely and with-
out binding?
Go to step 8 Go to step 2
2
DRIVE ASSEMBLY INSPECTION
1. Remove the EP Cartrid
g
e.
2. Hand rotate
(
counter clockwise
)
the Main Motor.
Can you easily rotate the Main Motor and do all of the
gears on the Main Drive Assembly rotate freely and with-
out binding?
Replace the
EP Cartrid
g
e
with a new
one
Go to step 3
3
SUBSYSTEM ISOLATION
1. Open the Left Upper Cover.
2. Touchin
g
onl
y
the drive
g
ear at the end of the Roll, hand
rotate the BTR.
Can you easily rotate the BTR?
Go to step 4 Replace the
Left Upper
Cover
(
RRP
4.2
)
4
SUBSYSTEM ISOLATION
1. Remove the Fuser Assembl
y
(
RRP 6.1
)
.
2. Hand rotate
(
counter clockwise
)
the Main Motor.
Can you easily rotate the Main Motor and do all of the
gears on the Main Drive Assembly rotate freely and with-
out binding?
Replace the
Fuser Assem-
bl
y
(
RRP 6.1
)
Go to step 5
5
SUBSYSTEM ISOLATION
1. Remove the Offset Unit
(
RRP 7.1
)
.
2. Hand rotate
(
counter clockwise
)
the Main Motor.
Can you easily rotate the Main Motor and do all of the
gears on the Main Drive Assembly rotate freely and with-
out binding?
Replace the
Offset Unit
(
RRP 7.1
)
Go to step 6