Lexmark W820 Service Manual page 126

Error Code 253
There is a paper jam between Paper Tray 5 and the Registration Sensor.
Logic Control on the MCU PWB sensed that when paper was fed from Tray 5, the
Registration Sensor did not actuate within the specified time after the Tray 2 Take Away
Sensor was actuated.
Step Actions and Questions
1 Are all the feed rolls correctly installed? Go to
Nudger, Feeder, and Retard Rolls" on page
Feed, Nudger, and Retard Rolls" on page
Feed, Nudger, and Retard Rolls" on page
2 PAPER INSPECTION
Inspect the paper that is loaded in the paper cassette.
Is the paper loaded in the cassette wrinkled or damaged?
3 PAPER PATH INSPECTION
Inspect the paper path for paper scraps or foreign objects that
could cause a paper jam.
Is the paper path clear?
4 REGISTRATION SENSOR TEST
Enter Diagnostic Mode and select Sensor Test- Registration
Sensor.
Open the Left Upper Cover and insert, then remove, a sheet of
paper into the Registration Sensor.
Does the Control Panel LCD change between OP and CL
as you insert then remove the paper?
5 TRAY 2 TAKE AWAY ROLL CHECK
1. Enter Diagnostic Mode - Input Tray Test
2. Select Tray 2, Single
Does the Take Away rotate when the Main Motor runs?
6 TRAY 2 TAKE AWAY SENSOR TEST
Enter Diagnostic Mode, Base Sensors - Tray 2 Take Away
Sensor. Insert, then remove, a sheet of paper into the Sensor.
Does the Control Panel LCD change between OP and CL
as you insert then remove the paper?
7 HCF PWB REPLACEMENT
Replace the
Does the error code appear?
2-44
Service Manual
"HCF PWB" on page 4-66.
4025 Options
"Tray 3
4-84, "Tray 4
4-96, and "Tray 5
4-104.
Yes No
Go to step 2 Install
correctly or
replace as
necessary
Replace the Go to step 3
paper with
new paper
Go to step 4 Clear the
paper path
Go to step 5 Replace the
Registration
Sensor.
Go to step 6 Replace Tray
2 Feeder. Go
to the printer
service
manual for the
Removal and
Replacement
Procedure.
Go to step 7 Replace the
Tray 2 Take
Away Sensor.
Go to the
printer service
manual for the
Removal and
Replacement
Procedure.
Go to step 8 Problem
solved