Dell 3130cn Service Manual page 366

-Checking the Sensor and Switch
Sensor name (Diag. Code)
K Mode sensor (DI-0)
(Color Mode Switching Sen-
sor)
Version 1 2007.12.28
NOTE: This procedure is for the technical staff.
When performing operation for five minutes or longer with the front
cover open, remove all toner cartridges, and cover the drum to avoid
exposure to light.
1) Turn on the power and enter the Diagnostic Mode.
2) Execute the DI-0.
3) Open the Front Cover.
4) Remove the Cover Rear.
5) Remove the Cover Side R Assy.
6) Remove the Drive Assy K.
7) Press the lever mounted on the Solenoid to retract the actua-
tor from the sensor.
8) Check the sensor.
K Mode SNR
9) Press the "Cancel" key to stop the test.
10) Replace the Drive Assy K.
11) Replace the Cover Side R Assy.
12) Replace the Cover Rear.
13) Close the Front Cover.
2 - 12
Chapter 2 Operation of Diag.
Confirmation procedures
K Mode SOLENOID
Actuator
Operator Panel
Paper
Normal
Zna02050KA