Question about HP DeskJet 6988 Printer

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After intermittant problems with the density of the ink - sometimes faint, sometimes really good - I hooked up the 6988 directly to my computer. I'm still getting the same thing. Any suggestions?

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  • HP Master
  • 829 Answers

Hi, The fuser unit might have a problem . Kindly remove and check for any damage , Refix and try.

Posted on Jul 15, 2010

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1 Answer

Where is the density sensor on hp cm1312 colour laserjet?


thank you for your advise. we are having this problem, light black printer, colours are not good. we thought of the laser scanner, but thats above...as opposed to looking down, where toner can fall during print.

Dec 29, 2011 | HP LaserJet CM1312 All-In-One Printer

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I have an HP 6988 printer, will not print because is states out of black ink. I have replaced the cartridge for the second time now thinking I might have ourchased a defective one however it still states...


I would take the cartridge out, and use a qtip with a bit of rubbing alcohol on it to clean off the contacts on both the cartridge, and the corresponding one on the printer itself. It seems as though the printer is unable to get a signal from the cartridge so it is just displaying a generic 'out of ink' error.

May 29, 2011 | HP DeskJet 6988 Printer

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I have an HP L7680. I have all HP ink cartridges. The printheads read monitor and good. I have printed the diagnostics page and aligned and cleaned the printheads and calibrated. No matter what I do...


Cleaning the print heads can sometimes help and other times aggravate the problem, because cleaning takes a lot of ink out of the cartridges. If the cartridges are emptied using the cleaning procedure, then the cartridges will have to be replaced with new ones.

The ink jet information provided by hp's software can sometimes be just an estimate of how much ink is in the cartridge and not an actual reading by the electronics. So... Try new ink jet cartridges fresh from a package to see if that solves the problem, and make sure that the contacts are blown free of dust or dirt.

Good luck on this repair.

Dec 14, 2010 | Office Equipment & Supplies

1 Answer

My phaser 740 has print that flakes off when you print pictures with real dark areas. I assume it needs more fuser heat or less paper speed. The problem is I can' t figure out how to adjust either of these...


Recalibrate the colors. Flaking is sometimes caused by more ink/toner than can be fused to the media. There's a limit for the total amount of ink/toner. Yours may be set too high.
You'll need a copy of the Printer's User's Guide (also Downloadable from Xerox.com)

Controlling Color Density

When colors look faded, adjust the toner color density to extend the life of the components.

Print and use the Color Reference Page 1 In the printer's front panel, scroll to Calibrate Colors,

press Menu and print the Color Reference Page. 2 Compare the Color Reference Page to the Color Density

Samples on page 39. Make a note of the value (-10 to +10) for each color that most closely matches the samples.

3 Adjust the density for each color: Enter the value noted in Step 2 in the Calibrate Colors menu, under Adjust Each Color.

? Decrease color density: Press . ? Increase color density: Press --->.

4 Reprint the Color Reference Page; check your adjustments

Dec 09, 2010 | Tektronix Phaser 740P Laser Printer

1 Answer

Plastic piece in front of the cartidge prevent cartridge removal


Please have a look at this support tutorial. I think you will find that the plastic piece is the cartridge latch which holds the ink cartridges in place.

HP DeskJet 6988 Replace Cartridge

Jan 09, 2010 | HP DeskJet 6988 Printer

1 Answer

Ink print is very faint


Check the density control slide switch on the LHS of the op panel.
If that dosnt work remove ribbon and see if characters are being typed on top of each other.
How old is the ribbon??

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Creativr Gigworks S750 Subwoffer intermittent sound


The S750 system is a great sounding one but unfortunatly like many similar systems all the amplifiers and power supplies are housed inside the sub box. This means they suffer badly from heat and vibration problems (they cook themselves or shake themselves apart). I have fixed a few S750 systems in the past but due to their complexity it's not for the faint hearted.

May 26, 2009 | Creative Labs Gigaworks S750 Computer...

1 Answer

Stop multiple copies from printing HP 6988


Hi, you will have to stop sharing your printer, if you have the administrator rights to do this you will have to go to the printer properties click on sharing and click do not share and save.

that should stop them from using your printer

Jan 27, 2009 | HP DeskJet 6988 Printer

5 Answers

Printing


Check the print quality setting on your computer when printing from printing preferences try quality. Also optionally you may want to consider reinstalling the driver,s and uninstalling the printer completely first, as this will restore it to defaul settings.

Jan 06, 2009 | HP LaserJet 3030 All-In-One Printer

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