PRINTER SAYS PAPER JAM 23 ..

This can be caused by a few problems.
1. dust in printer: get blower an blow the printer out.
2. Paper stuck somewhere in printer: look as error and where paper jam is in and inspect that part of the printer
3. faulty sensor: replace sensor

Clean the feed rollers.

It is usually dirty and old fuser. It would takes longer time to heat up and also triggering error messages. Try changing that.

try turning off the printer for about 10 sec. to clear its memory and turn it back on.. then print again

Dear, there is very minor mechanical fault but it is better to visit the repair shop to fix it.

Best regards

Hi Mike,

This error can be caused by many reasons, some of them are:

Caused by Paper Stuck Under the Second Transfer Roll

Sporadic or Intermittent 200 Paper Jams

"200 Paper Jam" Resulting from a Possibly Damaged Tray

"200 paper jam" When Attempting to Print from Tray 2

To troubleshoot this problem, please click the links with their respective causes.

Please rate it fixya if it was helpful.

Thank you

Step1
Turn the printer off and on to see if it can automatically clear some or all of the jam. Many printers provide an error-code listing on the front panel display for the area where the jam occurred. If your printer shows an error code, be sure and check the printer manual to see if that identifies the area of the printer where the jam occurred. 
Step
2
Turn off the printer. 
Step
3
Remove any paper trays. Inspect them for wrinkled or damaged paper. 
Step
4
Open any other doors that give access to the printer's paper path and to the toner or ink cartridge. 
Step
5
If necessary, remove the toner or ink cartridge. Place it in a bag or away from light to avoid damaging it. 
Step
6
If you find a piece of jammed paper, remove it by holding it with both hands and pulling firmly (see A). 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. 
Step
7
If the paper does tear, try rotating the roller gears manually to free the paper (see B). Don't force anything, though. 
Step
8
Replace the toner or ink cartridge and paper trays, close any doors you opened and turn the printer back on. 
Step
9
If the printer paper jam message still appears, then there is still some paper in the printer. Reinspect the paper path.

Step1
Turn the printer off and on to see if it can automatically clear some or all of the jam. Many printers provide an error-code listing on the front panel display for the area where the jam occurred. If your printer shows an error code, be sure and check the printer manual to see if that identifies the area of the printer where the jam occurred. 
Step
2
Turn off the printer. 
Step
3
Remove any paper trays. Inspect them for wrinkled or damaged paper. 
Step
4
Open any other doors that give access to the printer's paper path and to the toner or ink cartridge. 
Step
5
If necessary, remove the toner or ink cartridge. Place it in a bag or away from light to avoid damaging it. 
Step
6
If you find a piece of jammed paper, remove it by holding it with both hands and pulling firmly (see A). 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. 
Step
7
If the paper does tear, try rotating the roller gears manually to free the paper (see B). Don't force anything, though. 
Step
8
Replace the toner or ink cartridge and paper trays, close any doors you opened and turn the printer back on. 
Step
9
If the printer paper jam message still appears, then there is still some paper in the printer. Reinspect the paper path.

There is a paper senser present in the paper lifting area. That part of your printer is not working properly. Replace that part and then try

Hi, I can help you with your printer problem. Please open this document and follow the instructions to the letter. http://h10025.www1.hp.com/ewfrf/wc/fastFaqLiteDocument?lc=fi&cc=fi&dlc=fi&product=12019&docname=c00249509 Let me know how it goes. Good Luck