Lexmark CX310n Service Manual page 297

3
Disconnect the toner density sensor cable from JTDS1 connector (A) or JTDS2 connector (B) on the controller board.
If you are removing the left toner density sensor, also disconnect the thermistor from JFUSES1 connector (C) on
the controller board.
Note: Be sure to pay close attention to the routing of all cables for reinstallation.
4
Remove the four screws (D) from the left and right sensors.
Installation notes:
• Before beginning the installation of the new left or right toner density sensor, note the 32-digit TPS value printed
on the barcode on the new FRU.
•
After installation, perform the TPS Setup. Enter the factory preset alignment number.
a
Enter the Diagnostics Menu:
1
Turn the printer off.
2
Press and hold 3 and 6.
3
Turn the printer on.
4
Release the buttons when the installed memory and processor speed displays.
b
Select TPS SETUP from Diag Menu, and press Select.
c
Select Right or Left, and press Select.
TPS Right 1‑16 or Left 1‑16 appears above a blinking 0 in the left position.
Repair information
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