HP Office Jet 6968 Paper jam Says: Remove rear access panel to clear any paper. How? Have opened every visible access. No paper evident. Closed & start over. Same message appears.

SOURCE: Paper jam in HP 4255 office jet all in one printer

Clearing paper jams
Paper jams can be real or false. The unit may report a paper jam even when there is no jammed paper. The solution to a real paper jam or a false paper jam is the same.
CAUTION:
Jammed paper must be removed using the rear access door with the power cord disconnected to avoid mechanical damage. Do not remove jammed paper from the front of the unit.

1. Turn off the HP product and turn it around so the back of the unit faces you.
2. Disconnect the power cord from the back of the all-in-one. The power cord must be disconnected to allow the paper feed rollers to turn freely.
3. Locate and open the rear access door by pressing in on the left side tab and then pulling the door toward you.

1. Inspect the pressure rollers on the rear access door and verify that they are clean and turn freely. Clean the rollers if needed with a soft towel lightly moistened with water. If the rollers do not turn freely, replace the rear access door. Click How to Buy on this page to order replacement parts.
2. From the rear access door opening, remove the jammed paper.
3. Remove the remaining paper from the paper supply tray. Discard any paper that is damaged or crumpled and then re-stack and reload the paper into the paper supply tray.
4. Reinstall the rear access door.
5. Reconnect the power cord to the unit and turn the unit on.

• Never use paper that is torn or wrinkled.
• If you are having problems using paper that has already been printed on once (recycling), replace it with new paper.
• Remove and then reinstall the rear access door. Verify that the access door is fully locked in place. The paper can skew if the rear access door is not locked.
• Every six months to one year, clean the paper feed rollers with a rag lightly moistened with water. Over time the paper feed rollers accumulate dust and do not function as well as they once did.
• When printing envelopes, tuck the flap into the envelope and crease the folds before printing.

SOURCE: Paper Jam detected. None found.

Here is the Xerox support page for your printer. It even has a movie on removing paper jams.
http://www.office.xerox.com/perl-bin/product.pl?page=sprt&product=8400&country=United%20States&language=en#_manuals_and_documentation_

SOURCE: back cover open message on brother mfc 7820n

Had same problem. Closer inspection revealed bit of paper out of sight. Removed the toner cartridge and worked to free torn paper. Then restart. Hope it helps.

Clive

• 4362 Answers
• Posted on Feb 27, 2010

SOURCE: MX860 error message reads: ''Rear cover - The

Hello there
You may not see a paper jam.

This may work for you, it has worked for many here I given this advice so gave it a try it could work for you. Generally when this happens, something has fallen into the printer, or a piece of paper has been jammed in there.

First step, remove the ink cartridge, and turn the printer upside down and gently shake it, see if anything comes out.

If nothing goes, or you can't hear anything rattling around, get a piece of cardstock paper (60lb or heavier) and gently push this through the printer, to see if it will help push out what might be stuck in there.
And gave the rode that the ink slides on a good clean and maybe a bit oil on cloth and wipe the rod with it.

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

SOURCE: I got a paper jam. I can not get to the paper. I s...

I removed the cartridge, pulled out the skewed paper and it ripped leaving a very small piece behind. This continued the notice 'paper jam'. I had to remove the two side springs, remove the two star headed screws nearby the springs and prise up the grill to remove the paper shred. Replace everything and the error message is gone and printer normal.