4026-0XX
Diagnostic Information 2-25
Main Drive Motor Service Check
FRU Action
1
Main Drive
Motor
Disconnect CN6 from the engine board. Check
the motor for shorts between each pin on CN2
and the motor case. If continuity is indicated,
replace the motor.
Check the resistance between the following pins
on the cable connector. If incorrect, replace the
motor. If correct, replace the engine board.
CN2-1 to CN2-2, 8 - 10 ohms
CN2-1 to CN2-1, 8 - 10 ohms
CN2-1 to CN2-4, 8 - 10 ohms
CN2-2 to CN2-3, 8 - 10 ohms
CN2-2 to CN2-4, 8 - 10 ohms
CN2-3 to CN2-4, 8 - 10 ohms
CN2-1 to CN2-5, 3 - 5 ohms
CN2-2 to CN2-5, 3 - 5 ohms
CN2-3 to CN2-5, 3 - 5 ohms
CN2-4 to CN2-5, 3 - 5 ohms
2
Left Side
Frame Gears
Remove the toner cartridge and print cartridge.
Manually rotate the paper feed gears on the left
side frame assembly and check for smooth
movement with no binds. If there are binds or
the gears do not turn, repair as necessary.
3
Paper Feed
Frame
Assembly
Besurethepaperfeedframeassemblyiscor-
rectly installed and the drive gear is engaging
correctly.
4
Associated
Gears
Check the fuser gears, print cartridge, transfer
roll gear and photoconductor unit gears to make
sure they turn freely. Repair as necessary.
