We had a paper jam in the front of printer but now the printer is saying 202paper jam open rear door. We have done this several times. I do not see any paper jamming the printer anywhere. We have shut off and turned on several times but same error is displaying. Please help! Thank you Pam

Which light? Orange? You probably have a paper jam or an obstruction in your paper feed path:
e.g.
Orange light blinking 3 times

1250/E17
Description:
The front door is closed.

Resolution:
Open the front door to allow prints to exit.

1300/E03
Description:
A paper jam has occurred during printing.

Resolution:
Locate and remove the jammed paper from the printer.Press the button on the device to continue printing.

1303
Description:
A paper jam has occurred in the rear tray.

Resolution:
Remove the jammed paper from the rear tray.
Press the button on the device to continue printing.

Derived from: http://www.canon.co.uk/support/consumer_products/product_ranges/printers/pixma/error_codes/

This printer has a straight flow through path.

* Situate the printer so that you may clearly get to the back of the device.
* Open the rear door path and check for the presence of any paper in the path there.
* If none. Then you need to check the area around the fuser.
* Permit the printer to cool for several minutes.
* Release the side catches and open the top of the printer.
* pull out the cartridge.
* inspect the area around the fuser. You might see a paper jam there. Clear and reassemble.

Hi,

Turn off the printer

Remove the Rear Access door
Clean the collers ( upwards ) with lint free cloth.
Close the Door.

Scuffle the papers in tray and place them

Try to make copy or print.

Had exactly the same problem... today actually.

Found the solution with another model's manual - I removed the paper from the top, but hadn't realised there was a jam in the paper tray. It was only when pulling it out completely that I found it as below...

Jam at Registration Roller

1. Remove Tray 2 completely.

2. Clear the jammed paper from the printer's

intake slot.

3. Re-insert Tray 2.

4. Open front door A.

5. Remove jammed paper if present.
6. Close front door A

Turn off the Printer
Remove the Rear Access door of printer
Check if the Rollers have any dust/ bits of paper
Clean the rollers with lint free cloth ( upwards just like the paper is picked and rolled )
Close the rear access door
open the front access door
Move the Carriage ( while holds the cartridges ) manually 5-6 times from left to right side
Check if there are any paper pieces stuck
Close the front access door
Turn on the printer..

Re-stack the paper tray and Scuffle the papers before placing them in the tray - Snap the Paper guide to the Paper's in the tray

Download the manual at
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=238&modelid=12804#DownloadDetailAct

page 71-73 addresses how to remove an internal paper jam.

1. Take out paper tray 1.
2. Remove any jammed sheets of paper you find there.
3. Once you have done this, reinstall the paper tray and try printing again.
   Note: You may receive a message informing you that another sheet of paper is jammed elsewhere in the printer. If so, please open the front door and remove the toner cartridge. Also open the rear door of the printer (and the duplex option if a duplex unit is installed). Remove any and all jammed sheets of paper you find. Then try printing again.
4. If the printer jams again with a 241 Paper Jam error message, look to see if it has tried to feed a sheet of paper out of the tray.
   

usually it means that a sensor in your fuser is bad. If you have a P.M. Kit replaced the fuser and clean the printer.

but before you do, make sure that you have cleared all jams, including in the fuser.

Its probably time for a Preventive Maintanence

Try this linke below.
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=110&prodSeriesId=411171&prodTypeId=18972&prodSeriesId=411171&objectID=c00642524

Or i cut and paste text, but you should view pictures. If you cannot get to it from link. Try typing "Paper jams alternating between front and back door" It should be first link from HP about a 3550.

document.tlSearch.tx.value=unescape("")
HP Color LaserJet 3500, 3550, and 3700 Series Printers - Paper Jams Alternating Between Front and Back Door Issue Description Customers may see paper jams error messages with no paper seen in the paper path. The message will alternate between check the front door and the back door. Workaround The release lever engagement tabs on the rear door can be bumped into the in-correct position. The purpose for this tab is to re-engage the fuser release levers as the rear door is closed. When one or both of these are left in the in-correct position the printer goes into a cycle of alternating between a "Jam in the Front Door" message and "Jam in the Rear Door" message. There is no paper present in the paper path when this happens. When a customer gets the "Jam in the Front Door" message and opens the front door, no paper is found. After the customer closes the front door, they get the "Jam in the Rear Door" message. When they open the rear door, find not paper (even pull out the fuser), and close the rear door, they get the "Jam in the Front Door" message. This cycle will continue

Placing both engagement tabs in the "Correct" position solves the problem and allows the print job to continue.for as long as the customer is willing to keep checking.