Problem

There are dots missing in my printouts.

Solution

The head gap may not be set correctly. Try moving the headgap lever to a lower setting. If that doesn’t help, the printhead may be damaged; call for service.

Problem

The ALARM light is flashing.

Solution

Try turning the printer OFF and then back ON again. If the light still blinks, call for service.

Problem

The ALARM light is ON and the Character Pitch 10 light is flashing.

Solution

This indicates that the paper lever is set at the wrong position for the paper you are trying to use. Move it to the proper setting.

Problem

The ALARM light is ON and the Character Pitch 15 light is flashing.

Solution

This indicates a paper jam. Press the SEL key and correct the paper jam situation. See “Clearing Paper Jams,” in Chapter 3.

Problem

The printer needs paper. The ALARM is not ON and I can’t load paper.

Solution

1.Press and release the SEL key.

2.Press and hold the SHIFT key and press the RESET / CHARACTER PITCH key.

The ALARM light illuminates and you can now load paper.

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Oki ML5521, ML5520 manual There are dots missing in my printouts