...bad... Try to cleaning the copper contacts of the both carts and cart slot in the printer and try again.. If that doesn't work, then you might try a new black cartridge and possibly a color cartridge ...
...machine will need service. H4 is a fuser heating error code. Meaning the machine is not warming up because of a bad lamp, thermal fuse, thermostat, and or thermister. Hope this helps. Good luck. ...
...bad one or 2. Work with a local HP authorized repairman-FREE or 3. Have them ship me a prepaid box, then send it back, and then wait for HP to fix it and eventually return it. FREE I have chosen ...
...bad firmware update or faulty connection during a firmware. I have heard of people just repeatedly trying the firmware update until it goes through. In fact, there is a firmware update for this ...
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