Lexmark T520 Service Manual page 92

Infoprint 1120 and 1125
Printer does not recognize Tray X is installed.
FRU
1 Autoconect Cables
Tray X System Board
Paper from Tray X does not reach the Pass Thru Sensor.
Service Tip: Check the media in tray x to make sure it is within
specifications. Some types of labels, foil material and slick papers
can cause misfeeds and slippage of the rollers.
FRU
1 Autocompensator
Assembly
Action
Check the autoconnect from the
printer or option above tray x. Check
for signs of cuts, pinched wiring or
damage to the contacts in the
connector. Check the autoconnect
cable(s) for correct installation at the
tray x system board. If correct, check
the continuity of the autoconnect
cable(s). If correct, replace the tray x
system board. If incorrect, replace
the cable.
Action
Check the autocompensator pick
arm rollers for any sign of glazing,
toner or other buildup. Clean or
replace as necessary.
Diagnostic Information
2-65