Close rear cover 1 keeps on showing everything all closed correctly turned printer on and off any Help or suggestions

If you have opened and closed all covers on your Sharp MX-4071 printer but are still receiving a "Close Printer Cover" error message, there may be a few possible reasons why this is happening. Here are some troubleshooting steps you can take:

1. Check for any paper jams: Open all covers and inspect for any paper jams or debris that may be obstructing the printer's internal components. Clear any jams or debris that you find and ensure that there are no obstructions left inside the printer.
2. Check the covers and sensors: Make sure that all covers are properly aligned and closed securely. Check the covers for any damage or signs of wear and tear that may be preventing them from closing correctly. Also, inspect the sensors that detect the covers to ensure that they are not damaged or obstructed.
3. Reset the printer: Power off the printer, unplug it from the power source, and wait for about 30 seconds before plugging it back in and turning it on again. This will reset the printer and may resolve the issue.
4. Update the printer firmware: Check if there are any available firmware updates for your Sharp MX-4071 printer and install them. Firmware updates can sometimes fix bugs and errors that may be causing the "Close Printer Cover" message to appear.

If none of these steps resolve the issue, you may need to contact Sharp support or a qualified technician for further assistance. They can diagnose the problem and determine if there are any hardware issues that need to be addressed.

it is in the left front of the machine the cover you open to change toner should have a actuator that pushes the switch that could be broken off or 1 of your toner cartidges may not be set correctly remove all of them and close the cover if it says install toners do that 1 at a time see if it keeps saying install cartriges until all are installed or you see close cover message after 1 is installed that would be the 1 not installed correctly causing your close cover message

13.20 PAPER JAM CHECK REAR DOOR

Media stopped in the paper path during power on or when the top door was closed.

Action:

1. Open top cover and remove toner cartridge. Remove all media in the paper path, and then re-install toner then open and close the top cover.

2. Open read door and pinch blue latches on fuser and pull it out. Inspect the sensor flag for correct movement and any paper obstructions in the fuser rollers. Re-install fuser and Confirm rear door closure.

3. Remove tray 2 and confirm paper is not jammed in the pickup area. Confirm paper size adjusters in the tray are correctly set for paper being used. (Do not set back paper stop to ANY)

4. Replace any defective sensors or flags

Hope this helps. Please keep us updated and remember to rate this answer.

TF

The printer displays a 'Cover open, please close cover' error message, even though the cover is closed.

This can happen if the lever on the cover open sensor is knocked off the switch assembly.

Reinstall the new drum unit, keeping the front cover open. Press OPTIONS. Press 1 when the display shows REPLACE DRUM? 1.YES 2.NO ACCEPTED. Close the front cover.

We had this problem. It turned out there was actually a piece of paper stuck in the printer! It wasn't so easy to see it from the rear.

We removed the paper from the front by taking out the ink cartridge first. Turned the printer back on and everything was fine.

This is a hardware problem nothing to do with software; somewhere inside the printer a cover is not closed correctly.

I had that problem too.

Unplug the printer.
Hold the printer cover open while you plug in the printer.
Then wait for the printer to power on while still holding the cover open.
Then close the cover.
The buttons should work and th error message should be gone.

It worked for me.

Is this a genuine Brother cartridge or a compatible/refilled cartridge? Inside, at the rear of the cartridge there is flag which when full blocks a sensor in the machine indicating the cartridge is full - with some compatible and refilled cartridges the flag may not be set correctly so the sensor sees that there is no ink in the cartridge. As a temporary fix place some black tape over the rear of the cartridge where the sensor arm is.