Filter
Top Products
Maintenance 3-16
NovaJet 800 Series Service Manual
Power Feed and Take-Up Motor Winding Resistance Check
Figure 3-9. Power Feed and Take-Up Motor.
1. Remove the feed and/or take-up roll from the printer.
2. Using Phillips screwdriver, remove the four screws that secure the
cradle idler from the right leg.
3. Ease the cradle idler off of the leg enough to disconnect the
motor wires from the leg harness.
4. Using a standard ohmmeter or multimeter, measure between the
+ and - connections on the motor. While manually rotating the
servo motor, monitor the readings on the meter. The acceptable
range is 25-40 ohms. Typically, the reading is 29-36 ohms.
5. If the measurement is found to be unsatisfactory, replace the
motor.
6. Perform the same procedure on the remaining motor.
Banding: Hardware vs Software
The technician must be able to identify whether the banding that is being
observed is related to either a hardware or a software problem. The two
examples in Figure 3-10 represent classic types of hardware and
software banding errors.