Question about Gestetner C7435n Laser Printer

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Black Lines?? Please could you help me? I Have a C7435N printing black lines on both sides even before it gets to the transfer sheet.I have checked everywhere,yet I cannot find anything,could you maybe give me some advise?

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Replace the black developer. You will need to order the black developer maintenance kit. It is around $89.00 at tonerprice.com. This is what we had to do.
cajameson200

Posted on Sep 25, 2009

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Replace the Green Drum.

Posted on Feb 12, 2009

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Plz try with new tonner

Posted on Jul 03, 2008

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My copy prints come out blurry after changing ink cartiges


Try this:
Checking the print quality:
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  2. Press the up or down navigation key to select TEST PRINT and press Menu/Set or Set.
  3. Press the up or down navigation key to select PRINT QUALITY and press Menu/Set or Set.
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  8. The display will then show START CLEANING? 1.YES 2. NO.
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Setting the Alignment:
  1. Press the Ink or Ink Management key on the control panel.
  2. Press the up or down navigation key to select TEST PRINT and press Menu/Set or Set.
  3. Press the up or down navigation key to select ALIGNMENT and press Menu/Set or Set.
  4. Press Black (Mono) Start or Color (Colour) Start. The MFC/DCP begins printing the Alignment Check Sheet.
  5. By reviewing this Test Sheet, you can determine if the alignment needs adjustment.
  6. Examine the 600 DPI and 1200 DPI test prints on the Alignment Check Sheet. If the number 5 sample of both the 600 DPI and 1200 DPI most closely matches the 0 sample, press 1 (YES).
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  7. Press Stop/Exit.
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you probably needt o change the transfer belt which is the "black roller film". you can try wipping it off with a dry lint free cloth.

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