Question about HP DeskJet 810c InkJet Printer

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Blurred printing on my HP 840c? - HP DeskJet 810c InkJet Printer

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Have you checked your cartridges well. if they are ok, do some alignment and head cleaning. all should work out after

Posted on Mar 15, 2011

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Posted on Jan 02, 2017

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SOURCE: hp 840c no red printing

Dip the head area of cartridge in hot water by 2 to 3 seconds two or three times and use tissue to check the color, if all three color comes out to tisssue paper, then it works else you have to replace the cartridge.

Ahmad Bilal

Posted on Feb 22, 2009

myjosh007
  • 530 Answers

SOURCE: My printer Hp 840c is not printing colour prints?

Friend try the utilities through cleaning nozzle check and head cleaning

Posted on Jul 16, 2009

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2 Answers

My printer started to only print random numbers and letters MODEL HP DESKJET 840C


Turn the printer off at the wall outlet, reboot your computer and then plug the printer back in.

Nov 17, 2009 | HP DeskJet 840c InkJet Printer

1 Answer

It wont print


ur hp 840c inkjet has solution app in the disc run ur disc and find out why light flashing

Jul 18, 2009 | HP DeskJet 840c InkJet Printer

1 Answer

My printer Hp 840c is not printing colour prints?


Friend try the utilities through cleaning nozzle check and head cleaning

Jul 16, 2009 | Apple HP DeskJet 840c InkJet Printer

1 Answer

Hp 840c no red printing


Dip the head area of cartridge in hot water by 2 to 3 seconds two or three times and use tissue to check the color, if all three color comes out to tisssue paper, then it works else you have to replace the cartridge.

Ahmad Bilal

Feb 21, 2009 | HP DeskJet 840c InkJet Printer

1 Answer

HP 840c Printer - Print quality problem.


I have no magenta trying second cartridge still same problem

Jan 14, 2009 | Apple HP DeskJet 840c InkJet Printer

2 Answers

Blinking lights on my hp deskjet 840c printer


There should be some error .So you know how to remove the catridges just remove it n re insert it properly.If there are any paper jams try removing it also.and by the way if you haven't installed the drivers for HP deskjet this problem may arise.So make sure you ahve don this.Also this can be happened if the printer have some hardware problems.So none of this solutions are working its better to consult it with an expert.

Dec 18, 2008 | HP DeskJet 840c InkJet Printer

1 Answer

How to make an anvelope on printer hp 840c


you don't "make" an envelope. That little envelope picture on the tray is so that you can print on an envelope. you usually do that from Word under "labels and mailings"

Dec 02, 2008 | HP DeskJet 840c InkJet Printer

1 Answer

My deskjet 840C printer wll not print green


cos green color is out. what u do is refill the color catridge or rather buy a new color catridge n ur up again.
hope u find help here
thank u

May 21, 2008 | HP DeskJet 840c InkJet Printer

1 Answer

HP DeskJet 840c


pls. change your data cable of printer connected to computer

if it is work pls. remarks

Jan 30, 2008 | HP DeskJet 840c InkJet Printer

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