Dell 5310n - Workgroup Laser Printer B/W Service Manual page 142

Paper size switch not selecting paper size that is selected
FRU
Paper size switch
1
High-capacity feeder option
control board
24x.xx Paper Jam Check Tray x
FRU
High-capacity feeder option
1
control board
Elevator top optical sensor
2
cable
Elevator top optical sensor
Tray x Empty
displays; tray does not respond to loading paper; no response from the
front door switch
FRU
High-capacity feeder option
1
control board
Elevator top optical sensor
2
cable
Elevator top optical sensor
Service Manual
2-100
Action
Check for continuity between the common pin (J5-1) and the pin of
the paper size selected.
Pin Color
J5-1 Black
J5-2 Blue
J5-3 Green
J5-4 Yellow
J5-5 Orange
J5-6 Red
J5-7 Brown
If any position does not measure continuity when selected, replace
the paper size switch assembly. If the switch assembly is operating
correctly, replace the high-capacity feeder option control board.
displays when tray x is empty; tray x does not display
Action
Check the voltages on the board at J4-1(red) and J4-3 (blue). The
voltages measure approximately +5 V dc. If incorrect, disconnect J4
from the board and measure the voltages again. If incorrect, replace
the high-capacity feeder option control board.
Check the continuity of the sensor cable. If incorrect, replace the
cable. If correct, replace the top optical sensor assembly.
Action
Check the voltage on the board at J4-2 (green). The voltage
measures approximately +5 V dc. If incorrect, disconnect the cable at
J4 and check the voltage again. If incorrect, replace the high-capacity
feeder option control board.
Check the continuity of the sensor cable. If incorrect, replace the
cable. If correct, replace the top optical sensor assembly.
Paper size
Common lead
B5
Executive
A4
Letter
Legal
A5