Apple ImageWriter LQ Spécifications télécharger pdf (Page 11)

Troubleshooting Symptom Charts /Printing - 7

Printing

Dots missing 1 Replace print head.

2 Replace main board.

3 Replace print head to relay PCB cables.

4 Replace relay PCB to main board logic cables.

Printing continues on

paper-out condition

1 Test paper-out sensor, and replace if defective.

2 Replace main board.

3 Replace paper detect sensor.

Carrier moves but no

printing

1 Replace main board.

2 Replace print head.

Nothing printed,

carrier doesn’t

move, and power

light is on

Perform printer self test. If the test passes, see

“Communications” in this chapter; if the test fails, replace main

board.

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Apple ImageWriter LQ Spécifications Page 11