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Type: Posts; User: wingclubportland

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  1. Master Print unit issues on Riso MZ790u

    Hey all,
    I just picked up a second hand Mz790 riso printer and have a little background with taking apart risos (i battled with an old gr machine for years). There are a few issues that are...
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    [Jamming] Paper Misfeed on Riso GR1700

    Hi,
    I have a Riso Gr1700 that is having issues with mis-feeding paper. The machine will consistently print at a fast speed, but alot of times if i am doing a slow speed or test print, i keep getting...
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    [Misc] Risograph drum ink issue

    Hi,
    I have a Gr1700 risograph printer with a Bright red ink drum that i picked up about 2 months ago. i basically cleaned the whole drum inside out and purchased a new ink tube that is an off brand...
  4. Thermal head for Risograph Gr1700

    I have a Risograph Gr 1700 printer with white lines going through the image, Ive cleaned the thermal head and scanner with alcohol as well as scraped and cleaned the impression roller with no...
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