Question about Xerox Phaser 8400 Laser Printer

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Dark streaks There are dark streaks in the printing that show especially in the yellow. I've done all the cleaning protocols and replaced the maintenance kit. Help!?

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  • avaterlaus Oct 02, 2008

    I have dark streaks across the printed areas, especially on the complex images. Also, most images are slightly darker. I have cleaned the printer and it has recently been serviced by a Xerox dealer.

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Dark streaks are an indication of "burned" or overheated ink. This will occur when the printer sets for a long period of time and nothing is printed. The problem will usually disappear after 50 pages or so, unless the printhead is damaged.

If the print remains dark, the printhead will need replaced.
(Very expensive)

(Dark print can also be caused by using Non-Xerox ink)

Posted on Jan 17, 2009

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C252 streaks


Check your consumables. Press utility then check consumables. If anything is at the end of life, it needs replaced. It sounds like your drums are not cleaning properly and need to be changed. If they are fairly new, then I would suspect the transfer belt. If you know hoe to get into service mode you can go into test mode. Then run your halftones on each color. If it moves around, its your drums. If it stays in one spot, its your transfer belt. Also you could check your drum units. If they have streaks going across the green drum, like its dirty, then its coming from the drums.

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I have a LG 42LB5D 42" 1080 LCD television that


hi, usually you can correct this issue with only a few system checks, dark streaks can be caused by damaged pixels on the screen, in which case you need to replace the TV.
  • Inspect where the dark streaks are on the television. If the streaks occur at the same place on the top and bottom of the screen, they are due to the formatting of a movie or television show you are watching. This is normal. Also, if the streaks appear on the left and right of the screen, they are due to the show being filmed in full-screen instead of wide-screen. This also is normal.

  • Change the input setting so you are viewing the contents of a different device. If the dark streaks are gone, you know they are due to the device connected to it. However, if the dark streaks remains no matter what input the TV is connected to, the problem lies with the television.

  • Inspect the cable connection. Oftentimes when connecting a computer to an LCD TV, you can have strange dark streaks across the screen. Use a DVI-to-HDMI cable connection when plugging in your computer, then press the "Menu" button on your TV remote, select "Picture" and chose "Square Pixel." See whether the image adjusts and the dark streak goes away.
  • Contact the manufacturer of your LCD television if the dark streak remains. This streak can be caused by a defect in the television; if the TV is still under warranty, you can have it replaced.
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    Try doing a "stop test." You would induce a jam before the paper reaches the fuser.

    Just open a cover while printing and hopefully some image has been transferred to the paper. If the defect exists already then the laser unit, or document scanner may be causing it.

    If that eliminates the dark streak, then obviously the fuser FG6-3720-000 should be changed.

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    If so then the streaks are coming from the cartridge.
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    Hi,


    You need to remove the maintanence kit and clean the wiper blades there and where the paper comes out of the machine at the top. See below and check when your maintenance kit runs out and how to replace it!



    http://www.support.xerox.com/SRVS/CGI-BIN/WEBCGI.EXE/,/?St=389,E=0000000001343282793,K=7185,Sxi=9,Case=obj(947)

    http://www.support.xerox.com/SRVS/CGI-BIN/WEBCGI.EXE/,/?St=389,E=0000000001343282793,K=7185,Sxi=9,Case=obj(1031)

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    can only be toner, drum or fuser, pull out drum and look at surface are you streaks present? usually drum.

    Stop a print half way threw machine and then remove drum and look at print, pre hot bit (fuser) are you marks there? If so it is drum, if not fuser.

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