Thanks Thanks:  0
Likes Likes:  0
Dislikes Dislikes:  0
Results 1 to 3 of 3
  1. #1
    Trusted Tech 50+ Posts
    Join Date
    Mar 2008
    Location
    Adelaide, South Australia
    Posts
    54
    Rep Power
    33

    Riso GR3770 image creeps

    Hi My GR3770 has just started to do this. The image moves backwards from the lead edge of sheet over time. Need to watch and use the print position to keep advancing image forwards but after approx 4000 prints need to make new master as no more adjustment. Any ideas what problem is? thanks

  2. #2
    Not a service manager 2,500+ Posts Iowatech's Avatar
    Join Date
    Dec 2009
    Location
    Iowa
    Posts
    3,933
    Rep Power
    97

    Re: Riso GR3770 image creeps

    Quote Originally Posted by bcp View Post
    Hi My GR3770 has just started to do this. The image moves backwards from the lead edge of sheet over time. Need to watch and use the print position to keep advancing image forwards but after approx 4000 prints need to make new master as no more adjustment. Any ideas what problem is? thanks
    You might clean the master clamp on the drum, as it sounds like the master is slipping out on long runs.
    Make sure the clamp plate isn't bent, too.
    I think it could also be that the pressure roller underneath the drum has swelled up, causing excess pressure during printing that pulls the master out of the clamp. Hope that's not the case, as the only fix is to replace the roller, and new pressure rollers for the GR line haven't been available for quite some time.

  3. #3
    Trusted Tech 50+ Posts
    Join Date
    Mar 2008
    Location
    Adelaide, South Australia
    Posts
    54
    Rep Power
    33

    Re: Riso GR3770 image creeps

    thanks for that will try

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Get the Android App
click or scan for the Copytechnet Mobile App

-= -= -= -= -=


IDrive Remote Backup

Lunarpages Internet Solutions

Advertise on Copytechnet

Your Link Here