Keystone Computer Keyboard Manuel d'utilisateur télécharger pdf (Page 37)

For technical support, please call: 800-323-4840 ext. 290 (M - F 8 a.m. to 5 p.m CST)

Cleaning the Printhead

If print quality declines (symptoms include non-compliant bar codes, print dropouts, and streaks;

see sample label below), the typical cause is debris build-up on the printhead. Furthermore, when

the build-up is not removed it may lead to element failure, greatly reducing the service life of the

printhead. Streaks indicate a dirty or faulty printhead.

TO CLEAN THE PRINTHEAD:

• Turn ‘Off’ and unplug the printer.

• Open the cover. Unlock the Printhead Latch and raise the Printhead assembly. Allow the

printhead to cool before proceeding.

• Move media and ribbon away from the printhead as necessary.

• Using a Cotton Swab moistened, not soaked, with isopropyl alcohol gently wipe away any

build-up on the printhead surface, paying close attention to the Burn Line. Allow the printhead

to dry.

• Replace the ribbon and media. Lower the Printhead Assembly back to the locked position.

• Close the cover. Plug in and turn ‘On’ the printer. Feed several labels to normalize tracking.

1. Printhead Latch

2. Printhead Assembly

3. Cotton Swab

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Keystone Computer Keyboard Manuel d'utilisateur Page 37