Step 6
Check the cables on the sensor (auto alignment) and on the
JTPSAA1 connector on the controller board for proper connection,
and reseat if necessary.
Does the problem remain?
Step 7
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
Check the graph in the printout.
This sample graph shows good values:
Note:
The normal range of the sensor voltage is 1.5–2.0 volts.
Does the graph show good values?