Lexmark 1020 Color Jetprinter Service Manual - Page 21

Paper Path Service Check, Diagnostic Information 2-11

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4078-00X FRU 7 End of Forms Sensor Action Check the sensor for dirt. Perform the "EOF and Home Position Sensors Test" on page 3-2, to check the end of forms sensor on the system board. If the test fails, replace the system board. Paper Path Service Check Examine the machine for the following before you begin this service check: • Check the entire paper path for obstructions. • Be sure the correct type of paper is being used. • Be sure the printer is installed on a flat surface. FRU Action 1 Large and Small Feed Rollers Check for wear and binds. 2 Small Feed Roller Check for damage. Springs 3 Auto Sheet Feeder Check the pick rollers for wear. 4 Mid Frame Asm Access Cover Asm Check the following for wear: • Friction wheels • Exit roller • Star rollers 5 End-of-Forms Flag Check for binds or damage. Diagnostic Information 2-11

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Diagnostic Information 2-11
4078-00X
Paper Path Service Check
Examine the machine for the following before you begin this service
check:
•
Check the entire paper path for obstructions.
•
Be sure the correct type of paper is being used.
•
Be sure the printer is installed on a flat surface.
7
End of Forms
Sensor
Check the sensor for dirt. Perform the
“EOF and
Home Position Sensors Test” on page 3-2
, to
check the end of forms sensor on the system
board. If the test fails, replace the system board.
FRU
Action
1
Large and Small
Feed Rollers
Check for wear and binds.
2
Small Feed Roller
Springs
Check for damage.
3
Auto Sheet
Feeder
Check the pick rollers for wear.
4
Mid Frame Asm
Access Cover
Asm
Check the following for wear:
•
Friction wheels
•
Exit roller
•
Star rollers
5
End-of-Forms
Flag
Check for binds or damage.
FRU
Action