Tektronix 1235N - Phaser Color Laser Printer, Service Manual

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26 Phaser 1235 Network Color Printer
J9 Yellow Toner Empty Replace Yellow Toner J9-Yellow Toner Empty
J10 Magenta Toner Empty Replace Magenta Toner J10-Magenta Toner Empty
J11 Cyan Toner Empty Replace Cyan Toner J11-Cyan Toner Empty
J12 Black Toner Empty Replace Black Toner J12-Black Toner Empty
1. Install a new toner cartridge.
2. If a new cartridge has been installed but the print engine continues to ask
for a new cartridge, reset the toner cartridge life count using the topic
“Consumable count initialization” on page 73.
3. Replace the drum unit.
4. Replace the engine controller board.
L0 Load Tray # 1 Size 2 Type 3 Load Tray #, Size Type
1. Load the requested size and type of paper in the tray.
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.
T29 Temp Sensor Error T29 Power Off/On T29-Temp Sensor Error
T30 RH Sensor Error T30 Power Off/On T30-RH Sensor Error
1. Test the temperature sensor or the relative humidity sensor using the
sensor test described in “Switch scan test” on page 63
2. Inspect the wiring harness leading to the entrance sensor board.
3. Replace the entrance sensor board.
4. Replace the engine controller board.
T31 Roller Over Temp T31 Power Off/On T31-Roller Over Error
1. Inspect the main cooling fan. Ensure it is running correctly and is not
blocked.
2. Remove and install the fuser.
3. Test the thermistor inside the fuser using the test described in “Switch scan
test” on page 63.
4. Replace the fuser.
5. Replace the low-voltage power supply.
6. Replace the engine controller board.
T32 LED Over Temperature T32 Power Off/On T32-LED Over Temp Error
1. Ensure all the main cooling fan is operating and is not blocked.
2. Ensure the printer is operating in the correct temperature environment; the
printer’s Service Menu : Print Diag Summary test page lists the ambient
temperate sensed by the printer.
3. Replace the LED heads.
4. Replace the engine controller board.
Printer fault messages
Code Front panel message Service message