Clearing the printer's internal memory helps when you swap out cartridges and the printer still reads that the new cartridge is empty, or if the print head moves back and forth as if it's printing, but doesn't lay down any ink. (Keep in mind, the print head moving without laying down ink, can also be an indicator of a severe clog in the print head. If clearing the memory does not work, reference your manual to do a head cleaning.)
Note- if you are using a wide format printer, you will not have an ink button to hit, you will just need to remove the cartridges as if you were swapping them out.
Let’s clear the printer memory.
1) Take out all cartridges from right to left, one at a time.
2) Hit the ink button to return the print head.
3) Power off the printer.
4) Unplug printer from the wall.
5) Hold in the power button for 5 seconds.
6) Hit power button again to ensure it stays off when you plug back in.
7)Go over the chips again for cartridges of issue- you can use cotton swab with rubbing alcohol or a chip resetter IF a cartridge is reading out of ink.
8)Let the printer set for 3 minutes.
9)Once 3 minutes have passed, plug printer back in and power on.
10)Hit ink button and put the cartridges back in from left to right.
11)Hit the ink button to send it back.
12)Repeat these steps IF:
a.A new cartridge is of error
b.The trash light comes on
c.One or more of the cartridges is of error
i.If the second attempt at this point does not work, take a cotton swab with rubbing alcohol and go over the chip. Also, go over the contact port on the inside of the printer. These are metallic, vertical strips where the chip makes contact with the printer.