Question about HP LaserJet 3700n Printer

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I am getting ink smudges on the paper and I see the same image on the black film (printed backwards) when the door is opened. I have cleaned the ink off the film with a dry cotton cloth but the images/smudges return shortly. I removed this whole assembly (inside the door) and see excess ink in a plastic compartment below. Is this causing the excess buildup on the black film? Can I empty the plastic compartment somehow and would this help? Thanks for any help that you can offer, ken

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Printing Backwards like a mirror image

Control Panel>>Printing>>Add a printer>>Add a Local Printer>>Create a new port>>local port>>next

Get the actual network name of the pronter. For example \\bobspc\HPdj3740

When it asks for the port name type it in exactly as it show in the network. (like the example given)

Posted on Jul 28, 2008

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  • 300 Answers

SOURCE: blue color smears on every page

If you're still getting smudges, there must still be a label or part of a label either on one of the image drums or the transfer belt, i've found in the past it somethings gets stuck inside the unit on the cleaning blade. What i suggest is you run a print and open the front door at the paper travels along the transfer belt, look at all the image drums and see if you can see the smudge on one of them, if so the problem is caused by that cartridge if not it's in the transfer belt somewhere. You may need to try stopping the printer a few times and if the problem is in one of the cartridges, you will mst likely have to replace it, as with the transfer belt if you think that's causing the problem it's easier to remove it and rotate the belt manually.

Please note the image drums and the transfer belt are all light sensative

Posted on Sep 02, 2008

  • 137 Answers

SOURCE: black smudges on printed page

Are you sure this is a Designjet 450 (large format printer) and not a Deskjet 450 (portable printer)? The following assumes you have wispy black streaking on the printed side of the paper. If the streaking is on the back side then post more details of the printer model and the issue.

In either case the most likely cause is a buildup of fibers on the underside of the printheads or carriage, causing wisps of black ink to be dragged on the paper when the carriage reverses direction. You can clean the printer as shown at the following (though the details will be somewhat different for the Designjet or Deskjet....).

Regards,
Bob Headrick, MS MVP Printing/Imaging

Posted on Sep 16, 2008

Dax_Rush
  • 1 Answer

SOURCE: Ink smudges on the right side of the paper

Hi,

Your problem is due to a worn fuser unit (upper fuser roller).

The teflon coating has worn again, alowing the toner to stick to the roller and then "repeat" about 3x down the paper (getting fainter each time).

You need to order a new fuser unit.

Click here to go to HP direct

RM1-1083-070CN Fuser assembly - 110 VAC - For LaserJet 4250/4350 series RM1-1083-070CN Fuser assembly - 220 VAC - For LaserJet 4250/4350 series

Make sure you order the currect voltage (US or UK)

Regards

Vince.

Posted on Mar 04, 2009

POCBM
  • 121 Answers

SOURCE: 4 - black ink smudges (1/32" wide x 1/16" high) in right margin

Very nice trouble shooting. The image defect you describe point to the OPC or drum unit this is essentially the toner cart. In your case black. Measureing the distance between repetitive defects is a sure way of diagnosing problems such as yours. Again nice work.

Google repetitive defect ruler for your model to help in the future.

Hope this helps

Posted on Apr 07, 2009

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5x7 inch paper moves towards end of print and black ink smudges edge of paper


Check for any small paper jam. Check the rollers, also use an alcohol swab to clean the rollers and check for ink leaking. Check you ink pad, it could be time for a new one.

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My dcp165c printer print quality prints black & yellow colour. i clean print head through maintance 76 but problem cannot be solved


How is the printer printing black and yellow color? Is it a smudge?

When I print, the pages are smudged with ink. What should I do?
Description:
- If smudged stains appear at the top center of the printed page:
  • Make sure the paper is not too thick or curled.
    Also, verify that the appropriate paper is being used and that the paper type set in the machine matches the media used.
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- If smudged stains appear at the right or left corner of the printed page:
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- If smudged stains appear on the reverse side or at the bottom of the page:
NOTE: Illustrations shown below are from the representative product and may differ from your Brother machine.
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    How to clean the machine's printer platen

    1. Unplug the machine from the AC power outlet.
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      platen1.gif
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  • Make sure you are using Genuine Brother Innobella™ Ink.
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1 Answer

I got smudges when i print ,how can i clean this


It looks like you've managed to get some ink on the rollers. 3 Possible solutions:-

1) Check your printer maintenance menu, there may be a roller cleaning option.

2) Print a document which has printable data on almost all lines, but with empty cartridges. You'd be using a piece of paper more or less as a mop.

3) Final alternative, it getting right into your printer and cleaning it by hand. Printer ink is water soluble so damp cloths/cotton buds should be man enough for the job. The parts you need to concentrate on are the rollers and the small sponge wells underneath where the print cartridges rest.

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Poor quality smudge and ink blotting marks in the centre of any printed document


Try performing a test by printing a test page from Tray 1 and open the top cover as soon as the paper is 60% inside. The paper would jam below the toner cartridge before it reaches the fuser. Remove the toner cartridge carefully and verify if the smudges occur. This would eliminate the fuser. If the print quality is fine, then you need to swap the fuser.

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1 Answer

Canon i9900 black ink smudging


ok, What cartridges are you using, Are the Canon cartridges?
What paper are you using, is it Canon paper?

If you are to both of these it could be wise ordering a printhead, but this is mostly caused in the uk by None Canon Paper.

Please let me know what you are using?

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1 Answer

Black smudges on printed page


Are you sure this is a Designjet 450 (large format printer) and not a Deskjet 450 (portable printer)? The following assumes you have wispy black streaking on the printed side of the paper. If the streaking is on the back side then post more details of the printer model and the issue.

In either case the most likely cause is a buildup of fibers on the underside of the printheads or carriage, causing wisps of black ink to be dragged on the paper when the carriage reverses direction. You can clean the printer as shown at the following (though the details will be somewhat different for the Designjet or Deskjet....).

Regards,
Bob Headrick, MS MVP Printing/Imaging

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1 Answer

Blue color smears on every page


If you're still getting smudges, there must still be a label or part of a label either on one of the image drums or the transfer belt, i've found in the past it somethings gets stuck inside the unit on the cleaning blade. What i suggest is you run a print and open the front door at the paper travels along the transfer belt, look at all the image drums and see if you can see the smudge on one of them, if so the problem is caused by that cartridge if not it's in the transfer belt somewhere. You may need to try stopping the printer a few times and if the problem is in one of the cartridges, you will mst likely have to replace it, as with the transfer belt if you think that's causing the problem it's easier to remove it and rotate the belt manually.

Please note the image drums and the transfer belt are all light sensative

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1 Answer

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Can only be two things the drum or the fuser. More than likely drum they last about 4 toners i think.

Learn the art of getting a page to stop halfway threw printing, you want to stop the page after the drum has put a image on the paper but before paper has gone threw the fuser (hotbit).

Once you have mastered the position correctly by stopping the printing by opening the door and removing drum/toner cartridge, to reveal the paper that is printed but can be rubbed off, we will know if marks are coming from the drum (you will see them) or from the fuser, if print is fine.

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2 Answers

Xerox Phaser 6250


How Brave is Jan?

Doubt it be the fuser(100 000life), "just magenta dots".... fuser would be "all smudged" or "black marks" , "the print rubs off" , "paper is creasing or jamming"

Can prove it by stopping a print (open door) when paper is1/2 way threw machine, you need to stop it before it goes threw the hot bit, so you can tell if the hot bit (fuser) puts the marks on the paper.

Transfer roller one would expect to effect whole print Smudged/Faint,uneven density

It will be the imaging unit ( 30 000 pagelife Ouch$ ) or possible leaking toner (if aftermarket)

Remove imaging unit and inspect film you should find image of lines, dots are usually chips or sticky stuff on drum surface, carefull no oily human fingers on surface please.

When stopping machine mid print and perfecting your timing, pull out the imaging unit and look at replica of your print notice if marked and where.

Hope this helps



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