No Toner Cartridge Installed When It Is; No Fuser Installed When It Is; Front Door Open When It Is Closed; Left-Side Door Open When It Is Not - Tektronix Phaser 550 Service Manual

6
Troubleshooting
6-16 Phaser 550 Color Printer

No toner cartridge installed when it is

1.
Ensure that the toner cartridge is correctly installed.
2. Replace the toner cartridge.
3. Replace the toner cartridge drive unit.
4.
Replace the engine control board.

No fuser installed when it is

1. Ensure that the fuser is correctly installed.
2. Check the wiring harness leading to the fuser power connector.
3.
Replace the fuser
4. Replace the engine control board.

Front door open when it is closed

1. Inspect that the front door's interlock for damage.
2.
Inspect the cartridge selector/eject unit interlock mechanism for
damage.
3. Inspect the front door cartridge selector/eject unit interlock
mechanism. Ensure that when the interlock is actuated by the
cartridge selector/eject unit being closed, the interlock switch,
mounted on the toner cartridge drive unit, closes (with an audible
click).
4.
Replace the interlock switch.
5. Replace the power supply.
6. Replace the engine control board.

Left-side door open when it is not

The procedure for troubleshooting this problem applies to the Lower Tray
Assembly as well.
1. Is the left door open switch, located in the lower-left back corner of the
printer, properly in place?
2. Does closing the left door actuate the left door open switch?
3.
Is the left door properly in place? Replace the door if it does not
operate correctly.