Diagnostics and troubleshooting
264
Step 3
Perform the auto alignment service check. See
“Auto alignment
service check” on page 265
.
Does the problem remain?
Step 4
a
Enter the Diagnostics menu, and then navigate to:
Printer setup
>
EP setup
>
Toner patch sensor adjust
b
On the sensor gain characterization row, touch
Start
.
c
On the sensor gain verification row, touch
Start
.
d
On the sensor gain verification section of the test page, check
the average signal values of the patch number.
Are the values within the requirement?
Step 5
a
Remove the imaging kit.
b
Move the TPS wiper mechanism lever up and down.
Does the wiper mechanism properly move?
Step 6
a
Reinstall, repair, or replace the TPS sled and wiper mechanism.
b
Perform the auto alignment service check. See
“Auto
alignment service check” on page 265
.
Does the problem remain?
Step 7
Check the cable on the sensor (TPS) and on the JTPSAA1
connector on the controller board for proper connection, and
reseat if necessary.
Does the problem remain?
Step 8
a
Replace the sensor (TPS). See
“Sensor (TPS) removal” on
page 362
.
b
Enter the Diagnostics menu, and then navigate to:
Printer setup
>
EP setup
>
Toner patch sensor adjust
c
On the sensor gain characterization row, touch
Start
.
d
On the sensor gain verification row, touch
Start
.
e
On the sensor gain verification section of the test page, check
the average signal values of the patch number.
Are the values within the requirement?
Contact the next
level of support.