Sensor (Upper Media Exit) Off Jam A - Lexmark w850 Service Manual

4024-XXX
Step Check
8 Check the drive motor (buffer/transport/connection.
Is the above motor properly connected?
9 Perform a test print.
Does the error still occur?

287.01 Sensor (upper media exit) off jam A

Step Check
1 Check the media path.
1. Open the upper pinch guide assembly to the right.
2. Check four upper pinch guide pinch roll on the
upper pinch guide assembly and two upper media
transport roll assemblies by turning them with your
fingers.
Are the upper pinch guide pinch roll and upper media
transport roll assemblies installed correctly and do they
rotate smoothly?
2 Are the four upper pinch guide pinch rolls on the upper
pinch guide assembly and two upper media transport
roll assemblies free of damage?
3 Check the sensor (upper media exit) for correct
operation.
Perform the sensor (upper media exit) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path1.
5. Select Upper media exit.
Does the display on the operator panel change every
time the actuator of the sensor (upper media exit) is
operated?
4 Check the sensor (upper media exit) and main sensor
cable assembly connections.
Is the above sensor connected properly?
2-46
Finisher Service Manual
Yes No
Replace the drive Replace the
motor (buffer/ connection.
transport). Go to
"Drive motor
(buffer/
transport) and
belt (buffer/
transport)
removal" on
page 4-115.
Replace the Problem solved.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-118.
Yes No
Go to step 2. Clean or replace
the appropriate
roller and clean
the media path.
Go to step 3. Clean or replace
the appropriate
roller and clean
the media path.
Replace the Go to step 4.
finisher controller
card assembly.
Go to "Finisher
controller card
assembly
removal" on
page 4-118.
Replace the Replace the
sensor (upper connection.
media exit). Go to
"Sensor (upper
media exit)
removal" on
page 4-104.