Troubleshooting
3-6
3.2.1.2.1 Media Sensor Fault
Step Procedure Result Action
Yes Go to Step 2.
1
Examine the Media Sensor for obstructions.
Is the Media Sensor in good order?
No
Clean the sensor; see
Section 2.1.2.
Yes Go to Step 3.
2
Turn OFF and unplug the printer. Remove the
cover (see Section 4.1). Locate J7 on the Main
Logic PCB and inspect the connection at the
PCB and at the Media Sensor.
Are the connection and the assembly in good
order?
No
Connect cable or, if
damaged, replace the
Media Sensor; see
Section 4.6.
Yes Go to Step 4.
3
Plug in and turn ON the printer. Perform
calibration.
Was calibration successful?
No
1) Replace the Media
Sensor (see Section
4.6); or,
2) Replace the Main
Logic PCB (see
Section 4.4).
Yes Go to Step 5.
4
Press FEED then listen for Drive Motor
operation.
Does the motor operate?
No
1) Replace the Power
Supply PCB (see
Section 4.5);
2) Replace the Main
Logic PCB (see
Section 4.4); or,
3) Replace the Drive
Motor (see Section
4.7).
Yes
Inspect parts for
extreme wear or
misalignment including
the platen (see Section
4.8), printhead (see
Section 2.4), and
pressure (see Section
2.5).
5
Turn OFF and unplug the printer. Remove the
cover. Inspect all drive train components.
Are the drive train components good working?
No
Replace the defective
part(s).