Service manual

EPSON Stylus Photo R280/R285/R290 Revision B
Chapter 3 Troubleshooting 3.3 Troubleshooting by Error Message 34
At power-on
During
changing the
platen gap
The error occurs when
the PG (gap between
the printhead surface
and the platen) is
changed with the APG
Unit.
APG Unit
1. Is the APG Unit installed incorrectly? 1. Install the APG Unit carefully so as not to shift
the phase.
4.4.4 “APG Unit”(p.75)
2. Is the Combination Gear 10,15.2 disengaged or
attached incorrectly?
2. Attach the gear correctly.
APG Sensor Assy
1. Is the APG sensor damaged? 1. Replace the APG Sensor Assy.
4.4.16 “APG Sensor
Assy”(p.91)
Any time
Other than above
symptoms
Printhead
1. Is the Printhead damaged? 1. Replace the Printhead.
4.4.2 “Printhead”(p.72)
Main Board
1. Is the Main Board damaged? 1. Replace the Main Board.
4.3.1 “Main Board
Unit”(p.61)
Table 3-6. Troubleshooting for Cover Open Error
Occurrence
Timing
Symptom Failed Part Check Point Remedy Reference
At power-on
The Printer Cover is
closed, but the Cover
Open error occurs.
Cover Open Sensor
1. Is the Cover Open Sensor cable not connected to
CN17 on the Main Board?
1. Connect the cable to the connector on the Main
Board.
4.3.2 “Panel Assy/ Cover
Open Sensor”(p.64)
2. Is the Cover Open Sensor cable damaged? 2. Replace the Cover Open Sensor cable.
3. Is the Cover Open Sensor damaged ? 3. Replace the Cover Open Sensor.
Table 3-5. Troubleshooting for Fatal Error
Occurrence
Timing
Symptom Failed Part Check Point Remedy Reference
Combination Gear
CR Motor