Here’s 9 simple steps to troubleshoot the issue.
Step 1.) While the printer is turned on, open the cartridge access door.
Step 2.) Wait for the printer to come to a complete stop.
Step 3.) Remove the offending cartridge/s from the printer and close the cartridge access door.
Step 4.) When the printer has stopped motioning, power the machine down.
Step 5.) Once powered down, remove power from back of printer or from the wall, whichever is easier to perform, for 1 – 2 minutes.
Step 6.) If the cartridge in question is toner related, please tilt the cartridge GENTLY from side to side 5 –6 times to loosen and redistribute toner.
Step 7.) Plug the machine back in and power it back on. The printer engine will engage and continue to warm up.
Step 8.) When the printer has stopped motioning, install one of the faulty cartridge/s that was/were removed and shut the door.
Step 9.) Wait for the printer to recognise the cartridge then Proceed to points 8 & 9 until all cartridges are installed and recognised.