Kodak 800 SERIES service manual Power Feed and Take-Up Motor Winding Resistance Check

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.

Maintenance 3-16