Sensor (Punch Unit Side Reg1) Or (Sensor (Punch Unit Side Reg2) Lag Failure - Lexmark X940e Service Manual

Step Check
7 Perform a POR.
Does the error continue when the power is turned off/
on?

988.01 Sensor (punch unit side reg1) or (sensor (punch unit side reg2) lag failure

Note: This procedure pertains to sensor punch unit reg1 and reg2.
Step Check
1 Check the sensor (punch unit side reg1) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Punch and Staple.
5. Touch Punch side reg1.
Does the display on the operator panel change every
time the sensing area of the above sensor is
interrupted or blocked?
2 Check the appropriate sensor (punch unit side reg pair)
connection.
Is the above component properly connected?
3 Check the sensor (punch unit side reg2) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch FINISHER TESTS.
3. Touch Sensor Test.
4. Touch Punch and Staple.
5. Touch Punch side reg2.
Does the display on the operator panel change every
time the sensing area of the above sensor is
interrupted or blocked?
Yes No
Replace the Problem solved.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-115.
Yes No
Go to step 3. Go to step 2.
Replace the Replace the
appropriate connection.
sensor (punch
unit side reg
pair).
Go to "Sensor
(punch unit side
registration
pair) with
bracket
removal" on
page 4-43.
Go to step 5. Go to step 4.
Diagnostic information
7510-XXX
2-73