Xerox Nuvera 100, Service Manual

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ii LINX™ Solid Inkjet 100 Service Manual
4. Check the paper-eject path for obstructions. Ensure no small
pieces of paper are trapped around the stripper fingers.
If a piece of paper is trapped in the paper preheater, try
pushing it out by inserting a stiff piece of cardstock into the
paper preheater.
5. Ensure that the transfix roller rotates during the transfix
process.
6. Test the sensors in the paper path. Look for damaged or
nonoperating sensor flags.
7. Check the transfix solenoid and its cam. Ensure they operate
correctly and are properly lubricated.
Checking The Process Motor And Drive Train
1. Determine if the process motor runs. If it does not rotate, go to
Step 2. If it does rotate, go to Step 5.
2. Measure to determine if +40 VDC is being supplied to the
motor. If it is, go to Step 3. If it is not, inspect the process
motor’s wiring harness. If the harness is functional, then
troubleshoot the power control board and power supply. Refer
back to the topic, “Verifying Power Supply Operation.”
3. Disconnect the motor’s wiring harness. Measure the resistance
of the motor’s windings. The expected resistances are listed in
Table 3-2. If the windings are opened, shorted or far out of
tolerance, replace the motor.
4. If the motor’s winding resistances are within specification,
inspect the wiring harness for nicks, crimps, opens or other
problems. If the harness is functional, then replace the power
control board.
5. Inspect the gear train on the inside of the printer frame; look
for stripped gears or broken teeth. Be sure to inspect the inner
teeth on the process motor gear.
Media Skews Passing Through The Paper Path
1. Check to see if the media is excessively curled. Curled media
can get mistracked in the paper path.
2. Examine the paper path; ensure it is clear of obstructions.
3. Ensure that the pick roller is clean so that it picks up a sheet of
media smoothly and evenly.
4. Check the upper and lower feed rollers. Also make sure that
the front door is properly closed.