Carriage Jam HP 8500 printer/fax/copier. Carriage Jam message, have inspected printer from all angles, cannot see any paper jammed anywhere. Tried turning printer off and on to reset, still have a carriage jam message and will not allow me to print. Rolled the rollers by hand to find any jams, still nothing.... Thanks

If you are getting a 'carriage jam' error as soon as you turn on your printer with no tasks in progress, then check for any piece of paper stuck in the carriage. Remove the paper carefully. If the paper tears, part of it might remain inside the paper path and damage the product.

Follow the steps for fix HP Printer Carriage Jam

• Turn off the printer and open it to see where the paper is stuck.
• Manually move the carriage toward the opposite side.
• Check the paper path and remove any piece of paper or any other object that is stuck in the path.
• Reconnect the power cord and turn on the printer.

It may be the print head carriage, its usually a chrome bar which runs across the printer transporting the print head from left to right.

Normally they're greasy, a light, white electrical grease. It may have been rubbed off at one end.

Try opening the cartridge door, does the cartidge move to the middle for extraction, if not try and tease it along. Assuming you've been able to move it, ensure there's no build up of dust or dry patches on the bar.....................Good luck.