My printer gives me a message... error 78/77 cannot recognize ink cartridges. what should i do?

HP Printer does not recognize new cartridges due to cartridge problems, cartridges missing or damaged, and a not compatible cartridge with the printer. Now we discuss each step by step how to fix these errors. ·Make sure installed ink cartridges are compatible with your printer ·Open the ink cartridge access door and remove the ink cartridge from the printer ·Clean the removed ink cartridge with a lint-free cloth. Read more steps to fix HP printer ink cartridge error.

Epson printer is out of cartridge or Epson printer won't recognize ink cartridge When you haven't properly installed cartridge, Outdated printer drivers and more. Follow the steps to fix the Epson printer out-of-cartridge issue:

·Remove and Reinstall the ink cartridge
·Clean the chip on the printer ink cartridge

Read the following steps to fix the Epson printer won't recognize ink cartridge

Original Printer manufacturers do not recommend refilling in cartridges.
Different inks used in different cartridges differ in density, color, acidity etc. Usually refilling ink is made as universal ink. i.e. They produce the ink for 'any printer'.
The differences in the original and refiling inks might lead to the printer not recognizing the ink level.
Either buy a new cartridge or just ignore the messages.

yes, if no cartridge into printer, device will appear error message, but if have cartridge into printer, printer still appear message, it most likely your cartridge problems

Regards

If ink cartridge Unrecognizable, there are two posibilities : Chip Error at ink tank, or printer error. For chip error, try to plug the ink tank to another printer (same type). If the ink tank recognized by other printer, so the problem is printer.
So ;
1. Check chip conector at head carriage.
2. Check the wiring of the head, and chip.
If two point above is ok, the last action is check the power supply and board. It may be epprom is damage.

Hello!
Remove the cartridges and gently wipe the cartridge contacts with a dry cloth, then put them back in. Then, hold the "resume" button for 10 seconds for each cartridge, that should reset them.
If that doesn't work, one of your cartridges (sadly) needs to be replaced.

Try to run the ink pad reset utility software.
Please log on to epson.com. The software runs on win xp and win vista.

Check the PG 40 & 41 Labels are near the top lugs and not near the curved lug and make certain that the cartridges are fitting in right. If the label has slipped down the 'chip' can not be read and error message will come up.

OMG! The cartridges are so expensive. I've tried to refill the cartridge myself and it put up an error message too. The only thing i did was splurge and bought a new cartridge!! Sorry.

Take the black ink cartridge back to the person who refilled it. The Microchip that's on the cartridge was not reset properly that's why the printer is returning that error.

You can try some steps before you take it to them to verify it.
1: reseat (take out and put back in) the cartridges into place
2: buy another black cartridge just to check if it will be recognized by the printer, if it does recognize it we know the cartridge is defective. If a new cartridge is also not recognize, start to check your warranty option with the manufacturer...