Lexmark 1000 Color Jetprinter Service Manual page 21

4096-00X
FRU
3 Drive Train
Assembly
4 Auto Sheet
Feeder
5 Mid-Frame Asm
Access Cover
Asm
6 End-of-Forms
Flag and Spring
7 End-of-Forms
Sensor
Action
Check for binds in the gear train and paper feed
mechanism by removing the paper feed motor and
rotating the large gear by hand. If you notice a
bind, replace the drive train assembly. Check the
feed clutch gear on the left side of the auto sheet
feeder. Turn the clutch gear and check that it
rotates freely in one direction and locks when
turned in the opposite direction.
Check the pick rollers for wear.
Check the following for wear:
• Friction wheels
• Exit roller
• Star rollers
Check for binds or damage. If binds are found,
replace the end-of-forms flag.
Check the sensor for dirt. Be sure the sensor lever
is in the down position. If the failure remains,
replace the system board.
Diagnostic Information
2-9