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I have a Risograph GR3770 and when it prints the middle part on the paper is light. Any suggestions?

Posted by Anonymous on

4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

checkitright
  • 1362 Answers

SOURCE: Paper tray will not lift on a GR3770

either the motor is not turning to lift it up or the gear is broken, do you hear the motor turning when the tray is pushed in? take the tray out and look in the back to see if there is anything blocking it also.

Posted on Sep 16, 2008

  • 55 Answers

SOURCE: Risograph GR3770 - cannot pul out the drum, Error

This solution is ONLY for pulling out the drum.
Open front door. If you look at the metal housing below the drum you will see a plate mounteg with two screws. Get it off and you will see a small lever. Turn it right to loosen the drum. Be extremely careful when pulling out the drum. If the drum is not in zero-position it might be a bit difficult (e.g. have a look at the master clamp). Please note that it may be difficult to insert the drum again.

Posted on Apr 27, 2011

vladmototole
  • 226 Answers

SOURCE: My HP 2100 keeps stopping in the middle of printing saying out of paper when paper's in the tray. Any suggestions?

the sensors are dirty, take it to a repair technician to clean the printer.

Posted on Nov 21, 2011

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A risograph 3770 doesn't print when I say 'test print' and says there is a jam


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Risograph GR3770 - cannot pul out the drum, Error code T14. How can I pull it out :)? thanks


This solution is ONLY for pulling out the drum.
Open front door. If you look at the metal housing below the drum you will see a plate mounteg with two screws. Get it off and you will see a small lever. Turn it right to loosen the drum. Be extremely careful when pulling out the drum. If the drum is not in zero-position it might be a bit difficult (e.g. have a look at the master clamp). Please note that it may be difficult to insert the drum again.

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The master is stucked on the print drum,open print drum remove master and try again.
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Jan 26, 2009 | Riso RZ220 Duplicator

1 Answer

Paper tray will not lift on a GR3770


either the motor is not turning to lift it up or the gear is broken, do you hear the motor turning when the tray is pushed in? take the tray out and look in the back to see if there is anything blocking it also.

Sep 16, 2008 | Riso RZ220 Duplicator

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Riso GR3770 Paper Jam, Check paper feed


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