Epson AcuLaser C2900N Service Manual page 220

Chapter 2 Operation of Diagnostic
Sensor Name (Diag. Code)
K Mode Sensor
(DI-4)
Side Switch Sensor
(DI-6)
Epson AcuLaser C2900N
NOTE: These procedures are for the technical staff.
When performing operation for five minutes or longer with the front
cover open, remove the drum cartridge, and cover the drum to avoid
exposure to light.
1) Remove the DRIVE ASSY PH.
2) Power on the printer, and enter the Diag Mode.
3) Execute DI-4.
4) Block the sensor light path by placing a piece of paper or the like
between the light emitting unit and the light receiving unit to
check whether the sensor functions properly.
Actuator
5) Check that the number in the bottom line of the display
increases by one every time the sensor light path is blocked.
6) Press the "STOP" key to stop the test.
7) Replace the DRIVE ASSY PH.
1) Power on the printer, and enter the Diag Mode.
2) Execute DI-6.
3) Open or close the Toner Access Cover to check whether the
sensor functions properly.
4) Check that the number in the bottom line of the display
increases by one every time the Front Cover is opened or
closed.
5) Press the "STOP" key to stop the test.
6) Close the Toner Access Cover.
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Check Procedure
K Mode Sensor
K Mode Solenoid
MiS02006SA
Revision B
Paper
MiS02007KA
Confidential