Dell 2135cn Service Manual page 477

Sensor name (Diag. Code)
K Mode sensor (DI-4)
(Color Mode Switching Sen-
sor)
Side Switch (DI-6)
Version 1 2008.02.01
NOTE: These procedures are for the technical staff.
When performing operation for five minutes or longer with the front
cover open, remove the PHD ASSY, and cover the drum to avoid
exposure to light.
1) Remove the DRIVE ASSY PH.
2) Cheat the safety Interlock System.
3) Turn on the power and enter the Printer Diag.
4) Execute the DI-4.
5) Check the sensor.
Actuator
6) Press the "Cancel" key to stop the test.
7) Turn off the printer power.
8) Attach the DRIVE ASSY PH.
1) Turn on the power and enter the Printer Diag.
2) Execute the DI-6.
3) Check the Switch.
4) Press the "Cancel" key to stop the test.
5) Close the Toner Cover.
2 - 18
Chapter 2 Operation of Diag.
Confirmation procedures
K Mode Solenoid
Operator Panel
Normal
Operator Panel
Paper
K Mode Sensor
Mnt02007KA
Normal
Mnt02008KA