Question about Apple HP DeskJet 840c InkJet Printer

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Black printing problem

Colours print ok, black is printing faintly in with white lines through it, have tried new black cartridge to no avail. Please can you tell me what the problem is

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THERE MAY BE MINUTE PARTICLES OF DUST GOT STUCK ON THE CIRCUIT OF YOUR PRINTER IN THE CARRIAGE WHERE YOUR BLACK CARTRIDGE IS FIXED REMOVE YOUR BLACK CARTRIDGE FROM THE PRINTER AND GENTLY CLEAN THE CIRCUITS OF BOTH YOUR PRINTER AND CARTRIDGE WITH THE HELP OF VERY MOIST CLOTH OR TISSUE.THIS MAY HELP YOU. GOOD LUCK.

Posted on Jun 03, 2008

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Posted on Jan 02, 2017

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Get the esp 2170 to not print light green instead of black ? I keep on replacing cartridge , to no avail !


replacing a cartridge, while the nozzles are blocked won't help.
Realise the printer will mix there colours to get "black" on the paper. So even a full cartridge, can't make the other colours black till the blockage is gone.

Please try this. If you have ink cleaning fluid, (only for printer ink) use that, if you dont have cleaning fluid, use clean water.
Open the printer as if you replace a cartridge. Remove the black one and look tot the bottom of the cartridge holder. There is a little pipe, where the ink should go in. put some drops water or cleaning fluid in there leave it a few minutes. with a tissue dry it and again insert some drops of water or cleaning fluid. Then put in a cartridge and give the printer a black and white print job. Like print a few A4 papers. Let it print till the black comes back. Can take up to 4 pages A4. I hope this will unblock the nozzles.
Please even if you don't need to print, switch the printer on at least once a week. And even better, let it do a bit of printing every week. This will save a lot of frustration.

Dec 03, 2014 | Kodak ESP Office Equipment & Supplies

1 Answer

Faint & White Lines in Printer Head Alignment


This sounds like you are using either a refilled cartridge or an after market cartridge and the ink is clogging the print nozzle. To clear the problem you need to insert an OEM cartridge, run the deep nozzle cleaning utiliity, alignment utility. This should clear up the problem with the spotty printout.
Let me know if this solves your problem otherwise we can explore other solutiions.
Please rate this solution. Thanks.

Oct 06, 2009 | Canon BJ I6500 InkJet Printer

1 Answer

Printer is refusing to print colour, with full colour ink tank.


Have you checked the ink levels in your cartridges? Ink can dry due to usage and also due to prolonged non usage.

Apr 13, 2009 | HP LaserJet 1100 Printer

1 Answer

Faint vertical lines on Samsung ML-2010


Was the toner remanufactured/ compatible?
Sounds to me like the doctor blade in the cartridge is 'gummed' up and not allowing the toner to flow evenly across the Developer roller......try another cartridge

Apr 10, 2009 | Samsung ML 2010 Laser Printer

1 Answer

Blank Ink not pumping to print head


Turn off the device after removing the printhead After removing the printhead, turn off the device, wait about 20 seconds, and turn it on again without the printhead installed. After it has restarted, reinsert the printhead.

it will go through this long routine of perhaps 20 min or so. after its compleate it should print great.

Nov 22, 2008 | HP Officejet Pro L7590 All-in-One InkJet...

1 Answer

Printer not printing all colours


try to uninstall the driver and istall it again the reboot the system and make a test page or try the alignemet cartridge software

if this is not helping u tell me so i can help u further

please rate this post.

thanx

Aug 23, 2008 | Office Equipment & Supplies

1 Answer

Printer prints in color but has gaps


Have you tried a new colour cartridge? This is a classic sign that the cartridge may be low on ink. When printing text, assuming you are printing black, it is likely that the black cart is doing most of the work so the gaps are insignificant. You could try printing text in several different colours. If the colour cartridge is low, you'll find that some colours may be ok but others may have gaps.

Best to try a new cart if you have one.

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