Lexmark X746de - Page 207

Diagnostic aids 3-9
7526
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Motor diagnostic setup
Motor
Setup requirements
Notes
Top cover
position
Front door
position
Tray 1 N/A Closed • Ok
• Picks paper – use empty or remove tray
Open Ok
Align N/A Closed Ok
Open
defeat +25 V switch
•Ok
• View align mechanism
Duplex N/A Closed Ok
Closed
split front door
•Ok
• View duplex mechanism (pull tray to isolate gears)
Open
defeat +25 V switch
•Ok
• Duplex mechanism disconnected from motor
Belt stepper N/A Closed • No motion
• No error reported
Open • Ok
• Belt disconnected from motor
Cartridge K – 3 N/A Closed • No motion
• No error reported
Open • Ok
• Cartridge disconnected from motor
Cart MCY – 2 N/A Closed • No motion
• No error reported
Open • Ok
• Cartridge disconnected from motor
PCU CY – 1 N/A Closed • No motion
• No error reported
Open • Ok
• Cartridge disconnected from motor
Fuser Closed Closed Ok
Open Possible under-temp 120.04 error
Open N/A Not recommended, fuser errors possible
Cam N/A Closed • Ok
• Front door locks & unlocks
Open • Ok
• Door disconnected from motor
• View gearbox
COD N/A Closed • Ok
• Engages and disengages cartridges
Open • No motion
• No error reported (open while test is running)