Stapler Unit Failure - Lexmark X850e Service Manual

Step Check
5 Check the punch carriage shift motor assembly.
Perform the punch carriage shift motor test.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Finisher Tests.
4. Touch Punch carriage shift mtr.
5. Touch Forward or Reverse.
Open and override the finisher front door interlock
switch.
Does the punch carriage shift motor assembly operate
properly?
6 Is the punch carriage shift motor assembly connected
properly?
7 Perform a print test.
Does the error still occur?

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.
Perform the Staple test.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Finisher Motor Tests.
4. Touch Stapler unit mtr.
Open and override the finisher front door interlock
switch
Does the motor in the stapler unit assembly operate
properly and staple the media?
2 Is the stapler unit assembly connected properly?
Yes No
Go to step 7. Go to step 6.
Replace the Replace the
punch carriage connection.
shift motor
assembly.
Go to "Punch
carriage shift
motor assembly
removal" on
page 4-120.
Replace the Problem solved.
printer engine
card assembly.
Refer to the
Printer Service
Manual.
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 4-133.
Diagnostic information
7500-XXX
2-143