Nov 28, 1: Here’s a link to this great service Good luck! What does this mean? Your answer needs to include more details to help people. Didn’t find what you were looking for? Replaced 3rd time with authentic HP Black cartridge. When printing use the pull down menu:

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HP Deskjet 840c problem

Slide an index card lightly dampened with water between it and the feed roller. Can any one help please? Place your order by 5pm Mon Dec 31 and your order will ship the same day. HP deskjet c prints rubbish since connected to mac mini intel core Since upgrading to a mac mini intel core running Remove the rear cleanout door and clean the feed rollers with prnit.

Solved: HP DeskJet C driver for Win7x64 – HP Support Community –

The problem started when the printer ran out of ink and we had to refill it. I will, in the meantime, check the back door and clean the rollers but doubt this will make a difference? Rubbing too hard can also cause a badly set chip to move making it inoprable. If a paper jam occurs, the printer malfunctions and prints page after page of strange symbols.


I am not so much good in english, and my problem is a bit difficult to explain Posted on Jan 10, Turning it on the head printer goes 84c0 way then stops with a strange sound, the paper jam mode hasn’t been cleared even when there is no paper stuck in I have already removed the paper!

Don’t ya just love opensource? Remove the rear cleanout door and clean the feed rollers with a cloth dampened with water. You can get special ones that are 840v just for it.

HP deskjet c prints rubbish since connected to mac mini intel core More Less.

If unplugging the printer does not solve the problem then the printer is defective. And the light which looks like “a cartridge and has a drop on it” keeps blinking.

Turning off an on doesn’t help. Ink cartridge light still on. Don’t have an account?

Verify that ink can flow from the cartridge by blotting the print nozzles on a damp paper towel a few times for two seconds. You already know they’re not the problem. If you do not, in spite of ink being in the cartridge it is defective.

How to print doubleside with HP Deskjet C Inkjet printer | Another Neighbourhood Techie

Position disarmament cartridge holder car halfway through the opening which takes the top cover. Thank you for posting your query, I’ll be more than glad to help you prjnt. A big THANK YOU to all of you who post things here, as I found my problem paper not going in way down on the list, tried the suggestion to take the back “door” off, cleaned the feed wheels primt am printing again.


HP c Printer – Print quality problem.

Information and links in this thread may no longer be available or relevant. Is there a way 840v tell if the Color or Black cartridge is the cause?

How to print doubleside with HP Deskjet 840C Inkjet printer

Hi, My Deskjet c does weird things, it can print one paper without trouble but when I need to print more than one paper it fails into trouble: Please, I really need help with my Deskjet. For further details see delivery estimates in cart. The max point reward for answering a question is Don’t waste the ones you buyed.