Xerox Phaser 7300B, Service Manual

Page: 53 / 277

Error Messages and Codes 2-37
Error Messages and Codes Procedures
Jam at Top Cover
A6:
Jam at the MPT or under Imaging Units.
A7: Jam at Fuser Exit.
A10:
Jam at output area.
A22: Jam in the paper feed path, including under the Imaging Units.
Troubleshooting Procedure Table
Steps Actions and Questions Yes No
1 Ensure the correct weight and type of
paper is loaded in the tray.
See “Media and Tray Specifications” on
page 1-16 for approved media types and
weights. Go to step [2]. Load approved
media and run a
set of test prints
through the
printer.
If a jam still
occurs, go to
step [2].
2 Check the Registration Rollers and
Transfer Unit for any spilled toner or
obstructions. Clean and remove
any obstruction in
the paper path.
Complete Go to step [3].
3 Check the fuser for fuser wrap, debris or
contamination.
Remove the Fuser covers and ensure the
thermistors are not broken or dislodged. Replace the Fuser. Go to step [4].
4 Check the following rollers for excessive
wear, and clean to free from dirt or debris:
MPT Pick Rollers
Eject Guide Assembly Rollers
Fuser Rollers
Exit Rollers
Feeder Assembly Rollers
Registration Rollers and grounding strap
Did this fix the problem? Go to step [5]. Replace the
appropriate roller
assembly.
5 Inspect the following actuators for
damage and use service diagnostics to
test the sensor operation:
MPT Entrance Sensor
Registration Entrance Sensor
Fuser Exit Sensor
Transfer Unit Entrance Sensor
Do the actuators and sensors operate
correctly? Go to step [8]. Replace the
problem actuator
For a problem
sensor, go to
step [6]