Lexmark T632 Service Manual page 73

The printer does not recognize one or more output options as installed.
Service tip: If more than a single output option is installed, check each one to see if the printer
recognizes any single option as being installed. If the printer recognizes any of the output options
then the base printer autoconnect system is operating correctly and the problem is in the
unrecognized option. Continue with this service check or go to the service check for the failing output
option.
FRU
1 5-Bin mailbox option
2 Mechanical linkage
assembly
271 Paper Jam - Check Bin 1 displays
FRU
1 Bottom pass thru sensor
flag assembly
Control board
274 Paper Jam - Check Bin 4 displays
Service tip: When a 274 Paper Jam Check Bin 4 message displays, a problem exists with the top
pass thru sensor assembly or the control board.
FRU
1 Top pass thru sensor flag
assembly
Control board
Action
Check the autoconnects, cables, and connectors of the option for any
signs of loose or damaged parts.
Remove the left and right side covers and check the two
autoconnects for damage, especially the connector pins. Remove the
output option and check the voltages on the standard output bin
autoconnect located on the top left rear of the printer. Go to
"Autoconnect" on page 5-1. If the voltages are correct, reinstall the
output option noting the position of the toroid on the autoconnect
cable of the lower autoconnect. Check the voltages on each of the
autoconnects. If the toroid was moved, make sure to move it back to
its original position on the cable. If the voltages are correct, replace
the control board. If the voltages are incorrect, replace the failing
autoconnect assembly.
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 bottom pass thru sensor is correctly
connected to J5 on the control board. Disconnect the pass thru
sensor cable and check the voltage at J5-3. The voltage measures
approximately +5 V dc. If incorrect, check the voltage at J5-2. The
voltage measures approximately 0 V dc. If incorrect, replace the
sensor assembly. If this does not fix the problem, replace the control
board.
Action
Check the flag for correct operation, binding, broken parts or
interference from the sensor cable. If incorrect, repair as necessary. If
correct check to make sure the top pass thru sensor is correctly
connected to J11 on the control board. Disconnect the pass thru
sensor cable and check the voltage at J11-3 The voltage measures
approximately +5 V dc. If incorrect, check the voltage at J11-2. The
voltage measures approximately 0 V dc. If incorrect, replace the
sensor assembly. If this does not fix the problem, replace the lower
control board.
4060-xxx
Diagnostic information
2-39