officejet pro 7740 - cover open message constantly on

[MrMuppie]

Brand new ... first, after each document it would declare that I was out of paper.  Now, after each document it says the door is open ... I have to open and close it to continue.

What gives here?

[KrazyToad]

@MrMuppie

Welcome to HP Support Community

I would like to help

Please try these steps

- Turn on the printer.

- Wait until the printer is idle and silent before you continue.

- Disconnect the USB cable from the rear of the printer. If your printer has a network or wireless connection, leave it connected.

- Remove the ink cartridges from the printer.

- With the printer turned on, disconnect the power cord from the rear of the printer and from the wall outlet or power strip.

- Wait at least 60 seconds.

- Plug the power cord back into the wall outlet.

NOTE: HP recommends connecting the printer power cord directly to a wall outlet.

- Reconnect the power cord to the rear of the printer.

- Turn on the printer, if it does not automatically turn on.

- The printer might go through a warm-up period. The printer lights might flash, and the carriage might move.

- Wait until the warm-up period finishes and your printer is idle and silent before you proceed.

- Reinsert the ink cartridges, and then close the ink cartridge access door.

- If you receive a prompt to print a calibration page, do so.

Next ensure the printer has the latest Firmware https://support.hp.com/in-en/document/ish_1776648-1643972-16

Thank you

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