Getting "inner cover is open" message

If the inner cover is open when starting normal printing,close it before pressing [OK] on the machine.Do not open or close the inner cover when printing.This may damage the machine.

Try a hard reset first: Unplug the printer from power source and PC, wait about 5 minutes and replug. Should the issue recur, then the cover sensor is probably faulty. That is the reason you are getting this error repeatedly. The only solution is to send the printer in for servicing and get the sensor repaired/replaced.

In any case, here are the steps to close the inner cover:

1. Press the Open Button (1) to open the Paper Output Tray (2).

2. Raise the Scanning Unit until it stops.


3. Close the Inner Cover


4. Now close the Scanning Unit.


You can also try reinstalling the printer software along with any patches, updates, etc from the Canon website. Make sure you uninstall the existing software first though..

If neither works, then its time to take the printer in for servicing. You could try to contact them by phone first:

• Toll-free live technical support** Monday through Friday 10:00 AM ET to 10:00 PM ET (excluding holidays) at 1-800-828-4040
• The location of the ASF nearest you for carry-in service at 1-800-828-4040
• Toll-free TDD Support Line for the Hearing Impaired Monday - Saturday (excluding holidays) at 1-866-251-3752
• Technical Support for Customers in Canada at 1-800-OK-CANON

Hope that helps!

Hello sir;Lift up the inner cover , on the right hand side there have a round hole look down the hole you will find a piece metal, try find some stick to push down that's door switch, if the message disapear, means door switch is OK, then have make sure your reset procedure is correct, close all cover turn switch off , UNPLUG power cord, wait for about one minute plug in and turn on the power again, it should be work.

When the message shows means inner cover sensor is faulty so it cannot detect inner cover state correctly. Try to clean the contact sensor with contact cleaner is good idea since it sometimes an oxidation occurs. Many times I success fix the problem like this.
Regards,
PrinterClinic

Hi there.
There have been hundreds of complaints about this problem. You can download a driver AND a user manual from the first link listed below. The second link will take you to a really great site for your printer.

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=238&modelid=11995#DownloadDetailAct

http://damnprinter.com/96/tray-guide.html

Try this Canon site for MAC driver.

http://support-au.canon.com.au/EN/search?v%3aproject=ABS-EN&binning-state=model%3d%3dPIXMA%20MP500%0Amenu%3d%3dDownload%0Aos%3d%3dMac%20OS%20X&

There are sensors that tell if covers are in place. Some sensors are photocells, some are little switches. A tab will interrupt the photocell or push the switch. If the tab has broken off, make a new one. The fun part is finding the sensor.

Reset the device when it is not functioning properly. If the device is not functioning properly or to clear memory, reset it.

1. On the operator panel, press and hold the <ON/OFF> button for one second. (The display will go blank.)
   
   Note: It may be necessary to unplug the power cord if pressing the ON/OFF button does not shut off the printer.
   
   
2. Wait approximately ten seconds and then press the <ON/OFF> button again.
   
   
3. Wait until the device has completed its cycling process before submitting another job request.

Closing the inner cover to clear error messages.

1. Raise the Scanning Unit until it stops.
   
   
   
   (A) Press the Open Button to open the Paper Output Tray if it does not open automatically.
   
   
2. Close the Inner Cover
   
   
   
   
3. Close the Scanning Unit.

I hope it helps!!!

try to reset the printer, power off, remove the main supply cable, leave it for 1 minute... and restart the printer...below link might be useful for more troubleshooting tips..
http://etech.maiila.com

Sorry a little late only just read your problem.
The location is not the bottom tray feeder but the disk tray. In settings change your media type to "Printable Disk" the paper scource should automatically change to "Disk Tray" and hopefully every thing will work OK.