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Riso RZ 220UI shows horizontal bars

I ran our Riso RZ220UI in test mode and printed out a checkered sheet and square sheet and they printed flawlessly. When I scan something, however, I have a series of solid bars on one end of the page, slightly varying in thickness and space apart, but same length. It is being burned onto the master. Cleaned glass, put white posterboard behind scanned item... same bars in the same part. It is a scanning issue but I can't figure out what to clean or how to fix.

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  • Jason Wessendorf
    Jason Wessendorf Jan 03, 2014

    I just looked at the scanner going across and the little green LEDs blinking in exactly that part and in the frequency that makes me sure it is the cause. What to replace?

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  • Contributor
  • 58 Answers

You have to change the whole unit of your led light. the bar with all those led lights are attached or soldered. hope to be of help.

Posted on Feb 14, 2014

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

MUKHTAR
  • 2017 Answers

SOURCE: Test Page

align the catridges

Posted on Sep 22, 2007

Soulvisitor
  • 1113 Answers

SOURCE: Thick Black Line on my copies and faxes

Can't image it being anything but scan glass, if prints are fine, are you sure you cleaning scan glass(inside of where originals are fed)?

If so then scanner lamp faulty, but I've never come across it myself on this model.

Posted on Oct 27, 2007

MUKHTAR
  • 2017 Answers

SOURCE: Yellow line showing on in scanned pages

if you can open the cover of the scanner just clean the glass and use any lubricant to apply on head rod to move smoother .

bye

Posted on Nov 16, 2007

SOURCE: HP PSC 2410 very slow printing issue

It is a cartridge problem. Solution for my hp 3645 (I have the same story as bb18, but different printer) was to remove color cartridge! 
The printer is fast now, of course it does not print in color :) (I`m waiting for a new color cartridge) Good luck,
Marcin

Posted on Feb 08, 2008

CWChar
  • 14 Answers

SOURCE: Vertical lines when scanning using automatic document feeder...Glass is clean

It is not in the glass. More than likely it is in the rollers of the ADF feeder. If you open the cover of the ADF feeder you can see there are 3 screws (! is found under another small cover furthest to the back of the machine. Once these three screws are removed you can left the entire ADF feeder from the unit. You will then be able to clean all the rollers. Do not use alcohol as this will dry our your rollers and cause them to eventually crack. Just use soap and water to clean the rollers. Then reinstall the ADF feeder assembly back on the machine.

Posted on Nov 14, 2008

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