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Input Sensor Service Check; Input Tray(s) Service Check - Dell 5310n - Workgroup Laser Printer B/W Service Manual

Service manual.
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Paper Jam - Check Bin x
271.xx
FRU
Upper pass thru sensor flag
1
assembly
Upper control board

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
Input sensor flag
1
System board
2
Input sensor cable
3

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
Tray x Option system board
1
or compensator assembly
or autoconnect cable
, POST incomplete
Action
Check the flag for correct operation, binding, broken parts, or
interference from the sensor cable. If incorrect, repair as necessary.
If correct, make sure the lower pass thru sensor is correctly
connected to J3 on the lower control board. Disconnect the pass thru
sensor cable and check the voltage at J3-3. The voltage measures
approximately +5 V dc. If incorrect, check the voltage at J3-2. The
voltage measures approximately 0 V dc. If incorrect, replace the
sensor assembly. If this does not fix the problem, replace the high-
capacity output stacker option.
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 J15-10 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. If the
cables, connectors, and connections are good, replace the FRUs in
the following order:
• Autocompensator assembly option
• Replace the option.
Diagnostic information
2-103

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