Lexmark 632n - T B/W Laser Printer Service Manual page 124

FRU
3 Stapler board
Stapler assembly
283 Staple Jam - Check Stapler displays.
FRU
1 Staple cartridge holder
2 Staple unit
Action
Check the voltages on connector J3 on the board.
Note: All voltages are approximate values.
Pin No. Voltage static Voltage feeding
1 +24 V dc +24 V dc
2 +24 V dc +24 V dc
3 +24 V dc +24 V dc
4 +24 V dc +24 V dc
5 0 V dc 0 V dc
6 0 V dc 0 V dc
7 0 V dc Varies (0 V -1.5 V dc)
8 GND
9 +5V dc +5V dc
10 0 V dc 0 V dc
If the voltages are correct, replace the stapler assembly. If the
voltages are incorrect, replace the stapler board.
Action
Check the staple cartridge holder for any signs of damage and for
any jammed staples in the cartridge. Replace the staple cartridge
holder if damaged. If staples are jammed in the cartridge, replace the
old strip of staples with a new strip and try the finisher feed test from
the diagnostic menu.
Remove the staple cartridge holder from the staple unit and remove
the staple unit. Check for any staples that might be in the staple unit
mechanism. Check for correct operation and for any signs of
damage.
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Diagnostic information
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