Internal Tray Card/Paper Size Sensing Service Check - Lexmark T63x Service Manual

4060-xxx

Internal tray card/paper size sensing service check

Before proceeding, check for the correct paper size loaded in the tray and that the tray has been set
to accept the size paper loaded in the tray.
Paper size sensing switch chart
ITC
Signal
CN1 pin
1 PSIZE2
2 Ground
3 PSIZE1
4 PSIZE3
Tray 1 not recognized as being installed. Unable to clear Tray 1 Missing
message.
FRU
1 Tray 1
2 Integrated card/
autocompensator cable
3 System board
2-66
Service Manual
SW2
SW1
SW0
Paper tray size selection (X is activated)
ITC
switch
Letter Legal
SW1 X X
Ground
SW0
SW2 X
Action
Check Tray 1 for damaged or broken autosize fingers. Check for
anything that would prevent the autosize fingers from activating the
paper activate springs and ITC switches.
If a problem is found, repair as necessary. If no problem is found, go
to step 2.
Check for correct installation of the cable at J34 on the system board.
If installed correctly, go to step 3. If incorrectly installed, install and
recheck the printer.
Check the continuity between J34-2 on the system board and
ground. It should measure approximately 0 ohms.
CN1
1
A4 Exec B5
X X
X
System
board
A5
J34 pin
X 1
2
X 3
X 4