Question about Brother HL 1440 Laser Printer

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Black streaks on printout page

When copy is printed, there are streaks of black ink as though you have ran a brush across the page.

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Re: black streaks on printout page

It sounds like excess toner has built up in or around the imaging drum. I would *carefully* remove the toner and drum (can be messy) and use some canned air to clean the inside out. If you are still getting these streaks, it might be time to get a new drum (DR 400) as you are supposed to replace the drum every 6 to 8 times you change the toner cartridge.

Posted on Aug 23, 2007

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HP L7700 officejet printer leaves streaks on black ink lines only. Have cleaned heads repeatedly, changed black and color cartridges - nothing works.

Print in grayscale (black area streaking only) If the streaks are in a black area of a black and white printout, change to grayscale printing.
NOTE: This step does not apply to color printouts.
  1. In the application you are printing from, click File , and then click Print .
  2. Make sure the printer is selected and click Properties .
  3. Click the Color tab, and select Print Grayscale and High Quality .

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When printing or copying I m getting thick black

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If that does not solve your problem replace the ink carts OR Toner cart.
(I am unsure which you have as that was not specified)

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Black ink problem with printout on hp7780

Always try replacing the ink cartridges first.

It sounds like the print heads in the 7780 are bad. Don't confuse the ink cartridges with print heads. The cartridges fit inside the print heads. You will need to change the heads. Here is a link to HP's how-to.

Could have the same problem with the Dell.

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I have a HP Photosmart C5180 printer. It is not printing purple-instead what comes out is blue. I have done a print test report and it showed the Light magenta and magenta with missing bars and streaks. I...

If your color improved slightly when running the printhead option then doing more should help get better results. Sometime the printheads get really dirty/clogged and running the cleaning option more then once is needed.

If you get a slight line running across the page (from left to right) usually the indicates dust build up on the printhead or ink carriage. The dust acts as a paint brush being dragged across your paper as the carriage moves across the page during printing. You can clean the bottom of the carriage with a Q-tip or purchase some cleaning paper for your printer.

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1 Answer

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as i can suggest you that it can be the problem of head clogged internally where you insert your black cartridge .and the other main cause is while you give a head cleaning command to get the cartridge cleaned it sucks or pulls  the ink from the cartridge in such a huge quantity that 3-4 cleanings make the cartridge totally empty .due to this the ink gets very low and the printouts come with streaks.many a times setting the print mode in best makes the copy perfect.but the printing gets too slow in that best mode.

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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....).

Bob Headrick, MS MVP Printing/Imaging

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Hi, please attempt to run a numerous blank paper through the printer. This will dry or clean any ink found on the rollers.
Continue to run blank pages through the printer until no more ink is found on the paper, then attempt printing. If ink stains or streaks are still present, the printer may need service.


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Your fuser is worn out. Needs to be replaced.

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