3-134 Phaser 6280 Color Laser Printer Service Manual
Error Messages and Codes
Door A Open
The Front Cover is open.
Applicable Chain Link
â– Chain Link 077-300: IOT Front Cover Open
Initial Actions
â– Cycle printer power.
â– If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
â– Front Cover Assy., PL1.2.1
â– Interlock Assy. Harness, PL9.1.3
â– MCU Board, PL9.1.20
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 1. Check the Front Cover for damage.
2.Are there any damages on the Front
Cover Assembly?
Replace the
Front Cover
Assembly
(
page 8-16).
Go to step 2.
2 Check the Interlock Switch for
operation.
1.Perform the Interlock Switch test
(page 4-31): Service Mode >
Engine Diag > Sensor Test >
Interlock Switch.
2.Does number on the Control Panel
increase by one when the Front
Cover is operated?
Replace the
MCU Board
(
page 8-86).
Go to step 3.
3 1. Replace the Interlock Assembly
Harness (page 8-79).
2.Does the error still occur?
Replace the
MCU Board
(
page 8-86).
Complete.