Question about Xerox Phaser 8500/DN Printer

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Xerox Phaser 8500 not printing black

I have run all the cleaning cycles and test pages but I can print only about 15% of the color bars (one side only) in black, but all others cmy print prefectly. It's as is the black ink is plugged up but Xerox is of zero help.

Thank,
Robert D

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  • rglarson13 Aug 06, 2008

    We have a similar problem: CMY prints great, but the black ink is terrible - the Light Stripes Test page hase abou 15% of the stripes without problems; the remainder are severely striped, smudged, or missing altogether.

  • Lisa Dec 29, 2008

    Hey. I have the same issue, only it's with the cyan color. I tried the jet substitution for the jets after about a dozen light stripe tests and cleaning, but it only gets worse. After substituting the jets and doing yet another test, new bars in cyan become missing. Anyway, with all that printing, I'm fairly sure I ran most of the compatible ink out, and have since refilled it back with Xerox cyan. However, this still happens, and there are 4 particular bars that are still missing even after all this. What else can I do? I'm at a point where I pretty much ran through half a **** of paper and an entire month's worth of ink trying to solve this issue. Help!

    -Lisa


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Here are the directions to enable and disable Jet Substitution. This may very well help.
Some of the print head jets will not unclog for you. If that does not work then most likely the print head needs to be replaced.

o enable the Jet Substitution mode:

  1. Press the [Up] or [Down] arrow button on the Control Panel to select [Troubleshooting] on the Display Screen, and then press the [OK] button.
  2. Press the [Up] or [Down] arrow button to select [Print Quality Problems], and then press the [OK] button.
  3. Press the [Up] or [Down] arrow button to select [Eliminate Light Stripes], and then press the [OK] button.
  4. If necessary, select [Print Light Stripes Test] to make a Light Stripes Test print that shows any weak or missing jet and its jet number.
  5. Press the [Up] or [Down] arrow button to select [Jet Substitution Mode], and then press the [OK] button.
  6. Press the [Up] or [Down] arrow button to select the color for the weak or missing jet, and then press the [OK] button to select the color.
  7. Press the [Up] or [Down] arrow button to select the number of the weak or missing jet (1 to 309), and then press the [OK] button to confirm the selection.

    NOTE: If necessary, press the [Up] or [Down] arrow button to select [Save Change and Select Another Jet] to substitute more jets.

  8. Press the [Up] or [Down] arrow button to select [Save Change and Exit] and then press the [OK] button to complete the procedure.

To disable the Jet Substitution mode:
  1. Press the [Up] or [Down] arrow button on the Control Panel to select [Troubleshooting] on the Display Screen, and then press the [OK] button.
  2. Press the [Up] or [Down] arrow button to select [Print Quality Problems], and then press the [OK] button.
  3. Press the [Up] or [Down] arrow button to select [Eliminate Light Stripes], and then press the [OK] button.
  4. Press the [Up] or [Down] arrow button to select [Jet Substitution Mode], and then press the [OK] button.
  5. Press the [Up] or [Down] arrow button to select [Turn Jet Substitution Mode Off], and then press the [OK] button.

Posted on Feb 16, 2008

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