Stapler Unit Failure; Sensor (Stapler Carriage Hp) Late Error - Lexmark X850e Service Manual

7500-XXX

989.00 Stapler unit failure

Step Check
1 Check the stapler unit assembly for proper operation.
Warning: Ensure there are no loose staples in the
stapler unit after performing this test.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Finisher Motor Tests.
4. Touch Stapler unit mtr.
Does the above component operate properly?
2 Is the stapler unit assembly properly connected?
Is the above component properly connected?
3 Perform a print test stapled document.
Does the error remain?

990.00 Sensor (stapler carriage HP) late error

Step Check
1 Check the stapler by moving it manually.
Does the above component slide back and forth
properly?
2
Check the sensor (stapler carriage HP) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Punch and Staple.
5. Touch Stapler carriage shift HP.
Does the display on the operator panel change every
time the sensing area of the above sensor is
interrupted or blocked?
2-70
MFP Finisher Service Manual
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
Yes No
Check for staples Go to step 2.
and staple jams.
Problem
resolved.
Replace the Replace the
stapler unit connection.
assembly.
Go to "Stapler
unit assembly
removal" on
page 4-56.
Replace the Problem solved.
printer engine
card assembly.
Refer to the
Printer Service
Manual.
Yes No
Go to step 2. Remove
obstructions.
Go to step 4. Go to step 3.