Unknown Printer

How to Identify and Fix Common Problems ?

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Verify the ink cartridge(s) is inserted properly. Some cartridges snap in place, and if they are not inserted fully, the printer won`t print anything. If a lever is moved from its original position to allow for installation of ink cartridges, ensure it is returned to its original position.
Remove all of the new cartridges you had installed and re-install the old (empty) cartridges that worked. Restart the printer, this should remove the not recognised error (and tell you some are empty).
If there is a small amount of dust or ink residue on the contacts, it will prevent the cartridge from being recognised by the printer and show an error on the display or on your computer. Cleaning the chip contacts is a relatively quick task and can usually resolve the error.
Press the button on the chip-reset tool for several seconds until the LED light on the device goes off. Then, unlock the reset tool from the cartridge. Use the resetter with other cartridges and install them back into the corresponding slots in your printer. Voila!
The easiest remedy for this is to open the box and stand the cartridge upside down for a few minutes before using. Next, get a damp paper towel, fold it into quarters and the set cartridge print head down onto it, holding it there for three minutes. This will help to prime the print head and pull the ink out.
Disable the Cartridge Policy feature

In the Device Management pane, select the printers (or printer group) to configure. In the bottom navigation pane, select Config, and then select Supplies. In the Cartridge Policy section, select Off. Click Apply.

First, remove and reinstall the designated cartridge 2-3 times until it securely sits in the slot to overcome an HP printer cartridge error. Next, turn off the printer and take out all the cartridges. Gently wipe the cartridge and carriage contacts with a dry, lint-free cloth and reinstall again.
The “Incompatible Cartridge” message may signal you that the cartridge was placed in the wrong slot. In case you get such an error, make sure the cartridge model numbers match your printer model and your country/region. After that, check if they are installed correctly in the corresponding slots.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP DeskJet 722C Paper Feed Problem
ANSWER : Detach the force string from the holding nothing back one and expel all paper from it.

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New ink cartridge won't print
ANSWER : What happens now?

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cannot recognise new ink cartridge
ANSWER : I followed all the online hints I could find and none worked. So I got to looking at the cartridge ink window and noticed it had a little float inside that was stuck to the bottom. I gently turned it upside down several times to let the float move to the top of the ink tank. It took several try’s but it eventually stayed up about half way. I installed the cartridge again, making sure cartridge clicked in and printer began working.

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HP DESKJET 1280 ERROR
ANSWER : Help please! Printer power and paper lights continue to flash,- even after : encoder strip cleaned, carriage rod lubed, carriage is not stuck, rollers cleaned, no paper jambed . I know this is a variation on an existing theme, but could anyone help solve the issue.Many thanksKen

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Expired Ink Cartridges – Any way to move paper with old cartridges?
ANSWER : You could try disconnecting the printer from the computer. Then change the date on the panel to prior to the expiration date. That should fool it.

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HP deskjet 460 Waste ink tank full
ANSWER : I worked fixing printers for 5 years for Verizon and some of the older printers were notorious for the waste receptacle filling and overflowing with ink. My solution was good old warm water. Remove the waste container and scoop out as much as you can with a small screwdriver, wiping the discard on a paper towel, then just run warm water from the faucet into the container till all the residue is removed. This is just water soluble ink folks, if you want to test it, scoop out a glob and dissolve it in warm water, its easy as pie. I never once bought a new ink discard reservoir. I just cleaned out my mobile 460 printer reservoir by the same method. There are no electrical connections its just all plastic.

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HP DeskJet 950C Leaking Ink
ANSWER : Thanks for the “loose, white rectangular piece” comment in my 990cse. I found this same white piece of rubber today jamming up the cleaning station carriage assembly and was wondering where it came from!

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HP Deskjet 932C & 940C Black Cartridge error
ANSWER : I replaced both black and color inks but light still blinking and no copy.

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