Xerox 1235DT - Phaser Color Solid Ink Printer Service Manual page 36

Printer fault messages
Code Front panel message
B21 Jam B21 Open Cover B, See Labels
1. Ensure the correct weight and type of paper is loaded in the currently used
tray. Also ensure the paper is loaded correctly in the tray.
2. Clean the duplex unit's rollers.
3. Test the duplex motor and clutch as described in "Motor and clutch tests"
on page 69.
4. Replace the duplex unit.
5. Replace the engine controller board.
C1 Check Tray 1 No Tray Present
C2 Check Tray 2 No Tray Present
C3 Check Tray 3 No Tray Present
1. Ensure the tray is installed correctly.
2. Inspect and test the paper size sensors and the tray's corresponding
sensor flags.
3. Replace the paper tray sensor board or its metal finger-like actuators if they
are damaged.
4. Replace the engine controller board.
E1 Tray 1 Misfeed Open Tray 1, Cover B
E2 Tray 2 Misfeed Open Tray 2, Cover B
E3 Tray 3 Misfeed Open Tray 3, Cover B
1. Ensure the correct weight and type of paper is loaded in the tray. Also
ensure the paper is loaded correctly in the tray.
2. Clean the pick rollers.
3. Test the main feed motor as described in "Motor and clutch tests" on
page 69.
4. Replace the main feed motor.
5. Replace the engine controller board.
E9 Top Cover A Open Close Top Cover A
1. Close the cover.
2. Inspect the switch and ensure the switch's actuator is not broken.
3. Test the top cover open switch using the sensor test described in "Switch
scan test" on page 63.
4. Inspect the switch's wiring harness.
5. Replace the engine controller board.
E12 Top Output Bin Full Remove Output
1. Ensure the output bin full sensor flag operates freely.
2. Test the output bin full sensor using the test described in "Switch scan test"
on page 63.
3. Inspect the sensor and its wiring harness.
4. Replace the engine controller board.
Service message
B21-Duplex Area Jam
C1-Check Tray 1
C2-Check Tray 2
C3-Check Tray 3
E1-Tray 1 Misfeed
E2-Tray 2 Misfeed
E3-Tray 3 Misfeed
E9-Top Cover A Open
E12-Output Bin Full, Top
Service Guide 23