Printer says it has paper jam but there is no paper in the machine to jam and press ok but alarm keeps coming up on the machine and everything looks clear in it

Hi,
You may have to get the printhead replaced but first:-
Was the paper jam cleared?[disconnect everything even your PC and re-connect to start afresh]
Clean the printhead by:-

• Load a plain A4 size paper into paper tray.
• On the printers control panel,press the setup button.
• Select tools nad then press OK.
• Select 'clean printhead and then press OK.
• After the printhead cleaning,turn the printer off and then on.

Hope this helps.Thanks!

Service manual: ready and alarm blinking :
Paper Jam
Clear the paper jam and press the panel button if the printer
does not automatically resume printing.
Misfeed:
Re-install the paper and press the panel button.

Clear the jammed paper inside the printer. Press the panel button
if the printer does not automatically resume printing.

check the sensors:
1) Turn off the printer power switch, open the front cover, and remove the drum unit.
2) Turn on the printer while pressing the control panel button. The Drum LED comes ON.
3) Lightly press the panel button again.
Alarm LED is ON = Front registration sensor is turned ON.
4) Press and release the panel button again.
Drum LED is ON = Paper eject sensor is turned ON.

If sensors are On, paper is being detected, Off- no paper

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

OK this is old but you may look back
Error 6A00
The 6A00 is a Canon generic code for paper path jam.

Solution 1:
Move the printhead carriage back and forth a few times.

Solution 2:
Check the purge unit: Moving the print head assembly will not clear a purge unit if its jammed with paper, paper clips, push pins, screws, cookie crisp, flower bud pods or the like.

Solution 3:
Press the ink pads down in the purge unit.
Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

This is an error in the position of the paper feed unit.
First, make sure there is no paper jam anywhere in the machine.. look inside, rear, where the paper tray (output) is, etc to see if you find any shreds or torn paper that may have gotten stuck and you didn't see.Look carefully in the zone of Purge unit, using flashlight in the right side on printer.Look in the sheet feeder too. If this not help your printer need service.

check inside the printer (mainly the fuser) if there is some piece of paper.

give this a try

1. Turn off the printer.
2. Remove any paper trays. Inspect them for wrinkled or damaged paper.
3. Also open the back cover of the printer if this model has one.
4. Open any other doors that give access to the printer's paper path and to the toner or ink cartridge.
5. If necessary, remove the toner or ink cartridge. Place it away from light/ sun light to avoid damaging it.
6. If you find a piece of jammed paper, remove it by holding it with both hands and pulling firmly. The goal is to keep the paper from tearing. If several pieces are jammed together, try pulling out the middle piece first to loosen the jam.
7. If the paper does tear, try rotating the roller gears manually to free the paper. Don't force anything, though. Do this step especially if the jam message comes up repeatedly without any obvious paper jam, there may be a small tear of paper inside.
8. Ones the printer is free of paper Replace the toner or ink cartridge and paper trays, close any doors you opened and turn the printer back on.
9. If the printer paper jam message still appears, then there is still some paper in the printer. Reinspect the paper path.
10. see alternative if the problem is still not solved.
    

alternative :
Load a piece of thick paper, for example photo paper and press the resume button (may be diffrent button on diffrent models) a few times to the printer picks up the paper and puts it through the machine.

This may be caused by a dirty sensor. Disconnect power supply, open the printer and clean everything. You may use toilet paper. Be careful not to leave fragments of toilet paper inside the printer.

try this

1. Turn off the printer.
2. Remove any paper trays. Inspect them for wrinkled or damaged paper.
3. Also open the back cover of the printer if this model has one.
4. Open any other doors that give access to the printer's paper path and to the toner or ink cartridge.
5. If necessary, remove the toner or ink cartridge. Place it away from light/ sun light to avoid damaging it.
6. If you find a piece of jammed paper, remove it by holding it with both hands and pulling firmly. The goal is to keep the paper from tearing. If several pieces are jammed together, try pulling out the middle piece first to loosen the jam.
7. If the paper does tear, try rotating the roller gears manually to free the paper. Don't force anything, though. Do this step especially if the jam message comes up repeatedly without any obvious paper jam, there may be a small tear of paper inside.
8. Ones the printer is free of paper Replace the toner or ink cartridge and paper trays, close any doors you opened and turn the printer back on.
9. If the printer paper jam message still appears, then there is still some paper in the printer. Reinspect the paper path.
10. see alternative if the problem is still not solved.
    

alternative :
Load a piece of thick paper, for example photo paper and press the resume button (may be diffrent button on diffrent models) a few times to the printer picks up the paper and puts it through the machine.

Hi
Ok please try this
The 6A00 is a Canon generic code for paper path jam.

Solution 1:
Move the printhead carriage back and forth a few times.

Solution 2:
Check the purge unit: Moving the print head assembly will not clear a purge unit if its jammed with paper, paper clips, push pins, screws, cookie crisp, flower bud pods or the like.

Solution 3:
Press the ink pads down in the purge unit.
Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

Have you checked the access door in the rear of the machine?