Lexmark 43J3400 - Optra S 2455 B/W Laser Printer Service Manual page 130

4059-XXX
Service Tip: An intermittent "32-Unsupported Cartridge" User Error
Message can be caused by poor contact between the smart
cartridge contacts in the upper front cover and the smart chip. Also
check for proper seating of the smart cartridge cable to the engine
board.
FRU
1 Smart Cartridge Contact
Smart Cartridge Ground
Contact
2 Smart Cartridge Cover
3 Smart Cartridge Plunger
4 Smart Cartridge Cable
Engine Board
2-103
4059 Service Manual
Action
Check both contacts to make sure
they are properly installed and the
two contacts are not touching each
other. Check both contacts for any
signs of being bent, worn or broken.
If incorrect replace both contacts.
Check to make sure that the smart
cartridge cover is properly snapped
into place and is not damaged or
broken. Replace as necessary.
Check the plunger for correct
installation and any signs of being
damaged or broken. Correct any
problem found or replace the plunger
as necessary.
Check the voltage on the smart
cartridge contact. The voltage
measures approximately +5 V dc
when not writing data to the engine
board. If data is being written, the
voltage measures approximately
+12 V dc. If incorrect, disconnect the
cable from J21 on the engine board
and check the voltage on J21-1. The
voltage measures approximately
+5 V dc. If incorrect, replace the
engine board. If correct, replace the
smart cartridge cable.