Page 1 of 2 12 LastLast
Results 1 to 10 of 11
  1. #1
    Field Supervisor 500+ Posts
    Hp 4250 /Periodic quality issue


    Join Date
    Mar 2007
    Location
    Brooklyn
    Posts
    513
    Rep Power
    27

    Hp 4250 /Periodic quality issue

    HI
    I get a black bar across top of print about 1.5 inches wide ,running from side to side of print
    every so often,maybe 1 in 7 or 8 prints.I put a new cartridge in and still have problems.i thought I had this problem once before but not sure what took care of it.Thanks for any insights.
    Andy


  2. #2
    Field Supervisor 500+ Posts Wild Bill's Avatar
    Join Date
    Jul 2005
    Location
    Tokyo
    Posts
    682
    Rep Power
    40

    Re: Hp 4250 /Periodic quality issue

    I have had a less common problem. There are normally multiple lines though, They look like a "Venetian Blind effect."
    The problem is in the Power supply board. It's possible it is just beginning to go out. Not sure if this helps but that's all I have if you have ruled out the toner and the fuser.

    Izzy

  3. #3
    Master Of The Obvious 10,000+ Posts
    Hp 4250 /Periodic quality issue

    blackcat4866's Avatar
    Join Date
    Jul 2007
    Location
    Lapeer, Michigan
    Posts
    15,408
    Rep Power
    249

    Re: Hp 4250 /Periodic quality issue

    sample images? =^..^=

    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.


    blackcat: Master Of The Obvious =^..^=

  4. #4
    Senior Tech 250+ Posts
    Hp 4250 /Periodic quality issue


    Join Date
    May 2009
    Location
    Concord, NH
    Posts
    303
    Rep Power
    24

    Re: Hp 4250 /Periodic quality issue

    Have you taken a look at the laser unit? It may not be getting quite up to speed as printing starts.


  5. #5
    Service Manager 1,000+ Posts theengel's Avatar
    Join Date
    Nov 2011
    Location
    North Bend
    Posts
    1,209
    Rep Power
    32

    Re: Hp 4250 /Periodic quality issue

    I think these lasers write black, not white, so you would get white bands, not black ones if it were the laser.


  6. #6
    Service Manager 1,000+ Posts Phil B.'s Avatar
    Join Date
    Jul 2016
    Location
    Raleigh NC
    Posts
    1,164
    Rep Power
    17

    Re: Hp 4250 /Periodic quality issue

    check the contacts on the toner and inside the unit. Also check the transfer roller. How dirty is the machine?


  7. #7
    Senior Tech 100+ Posts 20 year tech's Avatar
    Join Date
    May 2014
    Location
    CT
    Posts
    153
    Rep Power
    11

    Re: Hp 4250 /Periodic quality issue

    Found this in my archive (I am a digital packrat) points to what Phil was talking about, also says to check the contacts on the hvt board as Wild Bill suggests

    Attached Files Attached Files

  8. #8
    Field Supervisor 500+ Posts
    Hp 4250 /Periodic quality issue


    Join Date
    Mar 2007
    Location
    Brooklyn
    Posts
    513
    Rep Power
    27

    Re: Hp 4250 /Periodic quality issue

    Hi
    Sorry about not getting back sooner,I went to machine today and replaced transfer roller and cleaned contacts.
    The problem is still there,only happens periodically,may not happen at all one day and 5Xs another day.
    This is an example which I hope helps.
    THANKS FOR ALL THE HELP Andy001.jpg


  9. #9
    Master Of The Obvious 10,000+ Posts
    Hp 4250 /Periodic quality issue

    blackcat4866's Avatar
    Join Date
    Jul 2007
    Location
    Lapeer, Michigan
    Posts
    15,408
    Rep Power
    249

    Re: Hp 4250 /Periodic quality issue

    Look at 20 year tech's bulletin. It looks exactly like your sample. =^..^=

    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.


    blackcat: Master Of The Obvious =^..^=

  10. #10
    Service Manager 1,000+ Posts Phil B.'s Avatar
    Join Date
    Jul 2016
    Location
    Raleigh NC
    Posts
    1,164
    Rep Power
    17

    Re: Hp 4250 /Periodic quality issue

    Quote Originally Posted by cucuklotz View Post
    Hi
    Sorry about not getting back sooner,I went to machine today and replaced transfer roller and cleaned contacts.
    The problem is still there,only happens periodically,may not happen at all one day and 5Xs another day.
    This is an example which I hope helps.
    THANKS FOR ALL THE HELP Andy001.jpg
    pull the HVPS AND Reseat it .. if that doesn't fix it try new HVPS


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