Keystone Computer Keyboard User Manual
Page 37
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3
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