Question about HP LaserJet 4700 Printer

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HP 4700 - tones dropping in on transfer kit w/ new toners

When this first appeared - the cyan toner started dropping 'dots/spots" on the pages on the right hand side, then the magenta, then yellow and finally black.  we replaced all 4 toners, the transfer kit and the fuser.  after 4 days of printing - the brand new cyan has started doing the same thing.   what else could be wrong??  any other parts that could be or needed to be changed out.?

Thanks!

Posted by mickieq on

  • 3 more comments 
  • mickieq Oct 30, 2007

    out of warranty - if that's the question.  i can't remember the exact date - but augustish of last year.

  • fcs_ari Dec 12, 2008

    I am having the same issue but only with cyan. Any ideas from anybody?

  • tterry5966 Jan 23, 2009

    I have the same issues that started with Cyan spots and then Magenta. I replaced the Magenta cartridge and the magenta spots stopped. Looks to be about 1.5" apart all the way down the left side of the page. Should be about a 1/2" roller. I would suspect a transfer roller. Does the transfer roller in the 4700 transfer the image to the belt?

  • spilzer Mar 11, 2009

    Argh! I'm having this problem with cyan too. I installed a new print cartridge a few days ago and it started dropping spots on the left hand side. One near the top, one in the middle and one near the bottom. Has anyone figured out what's wrong?

  • Lysander Spooner Mar 20, 2009

    I have the same problem with the Cyan cartridge. The machine is only about 28,000 copies, but I've had the problem since it was only a few weeks old. I waited until the cyan toner cartridge was empty and then followed the same advice you see here - to buy a new cartridge, but it 
    did not solve the problem. I notice that the people who were so certain it was the cartridge are now absent. Let's all face it; it's the machine. I should have insisted on another one when it was still in warranty but
    I just decided NEVER to buy another HP printer rather than go through
    the disruption of reinstalling. I accept the fact that I have a very expensive, and very heavy  piece of junk. 

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Robert Block

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High Voltage Board. The high voltage board is responsible for delivering the static charges which perform two functions within most laser printers: 1) Causes the toner to move from the drum surface to the surface of the intermediate transfer belt(ITB). 2) Causes the toner to move from the surface of the ITB to the paper.

In the CLJ 4700, there is an Electrostatic Transfer Belt instead of an Intermediate Transfer Belt. This simplifies the process by one step, because with an ETB, the paper rides on the belt, instead of having a separate transport path. HVB is still responsible for the colors transferring on to the paper from each drum, and it's literally the only thing left which can still cause copy quality issues if you've already replaced all four drums, the belt, and the fuser.

Posted on Mar 15, 2013

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How old is it?

Posted on Oct 30, 2007

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