Sensor (Exit 1 Media Shift Hp) Failure - Lexmark W850n Service Manual

4024-110

918.00 Sensor (exit 1 media shift HP) failure

Step
1 Check the sensor (exit 1 media shift HP) for operation.
1. Enter Diagnostics mode.
2. Select BASE SENSOR TESTS.
3. Select Media Path.
4. Select Exit1 shift HP.
Move the shift assembly, with your finger, in a side to side
motion.
Does the display on the operator panel change every time
the sensing area is blocked?
2 Check the sensor (exit 1 media shift HP) for connection.
Is the sensor (exit 1 media shift HP) connected?
3 Check the media shift motor for operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Exit1 shift motor.
Note: A continuous operation check is allowed up to twice
for each direction.
Does the motor operate normally?
4 Check the media shift motor for connection.
Is the above motor connected properly?
5 Check the printer engine card assembly for connection
P421 and the exit interface card assembly connector P431.
Are the above cards connected properly?
6 Perform a print test.
Does the error still occur?
2-50
Printer Service Manual
Check Yes
Go to step 3. Go to step 2.
Replace the Replace the
sensor (exit 1 connection.
media shift HP).
Go to "Exit 1
media shift
assembly
removal" on
page 4-104.
Go to step 5. Go to step 4.
Replace the media Replace the
exit shift motor. connection.
Go to "Media
shift motor
removal" on
page 4-107.
Replace the exit Replace the
interface card connection.
assembly.
Go to "Exit
interface card
assembly
removal" on
page 4-117.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
No