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Pin 3 to Pin 6
If the readings are incorrect, replace the motor.
Check for motor pins shorted to the motor housing.
If you find a shorted pin, replace the motor.
If the problem remains, replace the system board.
Although the paper feeds in a forward direction only, the paper feed motor turns in two
directions.
If the paper feed motor only turns in one direction, replace the system board.
Binds in the paper feed motor or gear train can cause intermittent false paper jam errors.
Remove the paper feed motor and check the shaft for binds.
Check for a loose or worn motor gear.
3. Check the gears.
Check for binds in the gear train and paper feed mechanism.
Rotate the large feed roll by hand.
If you find a bind, isolate it by removing one of the small idler gears on the inside
of the left side frame.
Replace any worn or binding gears or rollers.
4. Check the feed arm assembly.
At the beginning of the paper feed operation, the paper feed motor reverses momentarily
to allow the feed arm pawl to drop off the home position notch in the left side frame.
If the pawl fails to drop off the notch, check the feed arm assembly for binds, worn parts,
and / or broken parts.
5. Check the pick roll clutch spring and right side frame.
After the paper reaches the feed rollers, the paper feed motor reverses, restoring the feed
arm pawl to the home position notch in the left side frame.
If the feed arm pawl does not restore to the home position, or if a sheet of paper picks,
check the pick roll clutch sprint and right side frame for wear or broken parts.
Be sure that the extension on the clutch spring is between the two studs (1) in the right
side frame.