RESOLUTION
Clean the Thermal Head, black rollers, and gray roller with 99% pure Isopropyl Alcohol to remove any visible debris.
The Rollers should be cleaned with a lens cloth and Isopropyl alcohol as needed, or every other Print Pack
TechSpray Wipes may also be used.
- Remove the print media and protect it from contamination from any tabletop grime.
- Use "Canned" air such as Dust Off or other similar products should be used to clear out any dirt and dust within the printer.
- Gently rub from left to right while rotating the grey roller and larger black roller to remove any remaining dust.
- Use more air to clear away any remaining particles.
see this link:
http://imagingspectrum.com/blog/2010/09/updr150-roller-and-head-cleaning-procedure/
Click on this link or copy and paste the complete link into your browser.
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Thanks, Joe I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309