Input Sensor Service Check; Input Tray(S) Service Check - Lexmark T632 Service Manual

4060-xxx

Input sensor service check

Service tip: Run the Base Sensor Test. Check the input sensor for proper operation. The display
changes from open to closed as the sensor flag is manually moved in and out of the sensor.
FRU
1 Input sensor flag
2 System board
3 Input sensor cable

Input tray(s) service check

Optional 250-sheet and 500-sheet trays
Service tip: Try all the other input paper sources to make sure they are properly feeding paper.
For 990 Error Code- Service Tray x, x= displays the number of the tray that has a problem or needs
service.
FRU
1 Tray x Option system board
or compensator assembly
or autoconnect cable
24x Paper Jam displays, paper jammed over the pass thru sensor.
(The printer displays the value of x for the paper tray where the error occurs. Example: 241 is a Paper
Jam Tray 1)
FRU
1 Pass thru sensor and flag
assembly
2-64
Service Manual
Action
Check the input sensor flag for damage and proper operation. If a
problem is found, repair as necessary.
Check for approximately +5 V dc at J22-10 on the system board. If
incorrect, replace the system board.
Check the continuity of the input sensor cable section of the front
wiring harness. If incorrect, replace the harness. If correct, replace
the input sensor assembly.
Action
Check the autoconnect cables and connectors for damage. Replace
if necessary. Check the cables for continuity. If incorrect, replace the
compensator assembly cable. If the cables, connectors, and
connections are good, replace the FRUs in the following order:
• Autocompensator assembly option
• Option system board.
Action
The tray x option system board did not detect a piece of paper
actuating the pass thru sensor. Remove any jammed sheets of paper
from the printer and check the pass thru sensor and flag for proper
operation by running the appropriate Tray Sensor Test from the
diagnostics menu. If the test fails, check the sensor for correct
installation and the flag for proper operation. Also check the sensor
cable to make sure it is correctly connected to the option system
board. If incorrect, replace the tray x option pass thru sensor
assembly.