Results 1 to 4 of 4
  1. #1
    Technician
    Join Date
    Sep 2009
    Posts
    40
    Rep Power
    30

    Diagnosing cause of thin black line on riso print from RZ370ep

    Prints from the title machine have a single thin black line down them as seen in image. The line can also be seen on the master. The TPH has been cleaned and there's no visible damage or dirt. Is this a fault with the TPH or could there be another cause.
    Thanks for any help.

    Ian

    IMG_20211021_212655419.jpg

  2. #2
    Retired 10,000+ Posts
    Diagnosing cause of thin black line on riso print from RZ370ep

    slimslob's Avatar
    Join Date
    May 2013
    Location
    Bakersfield, CA
    Posts
    34,126
    Rep Power
    989

    Re: Diagnosing cause of thin black line on riso print from RZ370ep

    If the master was generated by scanning an original, I would say that you have a speck of dust of lint on a mirror.

  3. #3
    Riso dude 250+ Posts jermyth's Avatar
    Join Date
    Mar 2011
    Location
    Land of Diffusion
    Posts
    427
    Rep Power
    34

    Re: Diagnosing cause of thin black line on riso print from RZ370ep

    Slimslob is most likely correct, but to confirm before cracking open the optics go into test mode and print out a test pattern, mode 80 is a checker pattern.
    Good luck.

  4. #4
    Technician
    Join Date
    Sep 2009
    Posts
    40
    Rep Power
    30

    Re: Diagnosing cause of thin black line on riso print from RZ370ep

    Quote Originally Posted by jermyth View Post
    Slimslob is most likely correct, but to confirm before cracking open the optics go into test mode and print out a test pattern, mode 80 is a checker pattern.
    Good luck.
    Thanks. The checker printed without the line, so it looks like dust on a mirror.

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