Keeps saying carriage jam ..nothing there..removed and reinserted the cartages but still carriage jam reset the printer by turnibg off and on.

You might wanna try removing and reinserting the cartridges and make sure that they are properly fitted in.
Sometimes cleaning the cartridge and the carriage where you took out the cartridges from with a damp lint free cloth does the trick.
If you still have that message, open the cartridge access door.
If the carriage is stuck at the right side of the printer, move the carriage to the left side by hand. If it's stuck on the left side, try moving it by hand in the right side of the printer. Then while the printer is turned on, unplug it from the wall outlet and then plug it back in.
If the printer does not turn on, use the power button.
Try printing again.

Hi!
here are some solutions for your carriage jam error.

1. Clear any jam...remove loose paper.
2.Clear the jam from the back of the printer

turn off the printer...remove the rear access door..
pull the paper out of the roller and return the rear access door.
3. Clear the paper jam from the front of the printer..while printer is on.. open the carriage access door..

disconnect the power cable from the back.. remove the paper output tray.

look inside the product..check for torn papers..gently pull out the paper from the roller...return the paper output tray and the carriage access door. plug the power corn and turn on..
4. Make sure the carriages move freely...while the printer is on.. open the carriage access door.

disconnect the power cord from the back..remove the paper output tray...look inside if the carriage is stuck and if there is no papers or object that restrict the carriage to move..return the output tray.. return the carriage access door...
And lastly after doing this steps try to reset the printer and try to print..

To reset the printer....press the power button to turn on the printer..disconnect the power cord from the product..disconnect the power cord from the wall outlet.. wait for 15 seconds.. plug the power cord to the wall socket....plug the power cord at the back of the printer.. press the power on of the printer.. try to print the test page...


Good luck! hope this solve the problem

Much appreciated if you rate this help.. thanks

here are some solutions for your carriage jam error.

1. Clear any jam...remove loose paper.
2.Clear the jam from the back of the printer

turn off the printer...remove the rear access door..
pull the paper out of the roller and return the rear access door.
3. Clear the paper jam from the front of the printer..while printer is on..open the carriage access door..

disconnect the power cable from the back.. remove the paper output tray.

look inside the product..check for torn papers..gently pull out the paper fromthe roller...return the paper output tray and the carriage access door. plugthe power corn and turn on..
4. Make sure the carriages move freely...while the printer is on.. open the carriageaccess door.

disconnect the power cord from the back..remove the paper output tray...lookinside if the carriage is stuck and if there is no papers or object that restrictthe carriage to move..return the output tray.. return the carriage accessdoor...
And lastly after doing this steps try to reset the printer and try to print..

To reset the printer....press the power button to turn on theprinter..disconnect the power cord from the product..disconnect the power cordfrom the wall outlet.. wait for 15 seconds.. plug the power cord to the wallsocket....plug the power cord at the back of the printer.. press the power onof the printer.. try to print the test page...

http://www.fixya.com/support/t6088190-hp_7400_displayshttp://www.fixya.com/support/t6088190-hp_7400_displays
Good luck! hope this solve the problem

Much appreciated if you rate this help.. thanks

HP support has extensive documentation for both paper and carriage jams for your model:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00304007&lc=en&dlc=en&cc=us&lang=en&product=391182

I hope this helps!

Carriage jam means the carriage, where you put the inks, can't move right to left properly. Sometimes ink on the clear strip behind it is the cause. You can carefully clean with damp Q-tip, and check also that the cleaning assembly on the right where the printhead parks, is not stuck.

Friends,

The encoder strip may also be dirty, this causes the printer to believe that the carriage moves less than it actually does and tries to compensate by moving the carriage even further - slamming into the left side of the printer as a result.

Carefully leaning the encoder strip with a lint-free cloth wetted with luke warm water (it should not drip!) can fix this problem.

If the carriage stays in the middle of the printer and doesn't move, the carriage drive belt may be broken. Usually this is not replaced so the printer unfortunately has to be scrapped. But contact your local HP support for further advice.

//Al

The ink cartridge is probably not inserted correctly.  Unplug the printer and manually move the carriage to a location where you can take the ink cartridge out.
 
Remove it and reinsert it, making sure that it is fully located, before applying the power.
 
Make sure that there is nothing blocking the carriage movement, such as some remnant of paper.
 

1. Check if there are broken parts inside the printer-carriage area
2. Turn the printer on and off
3. Clear any paper jam by opening the rear access door at the back of the printer. If there are no paper jams. Clean the rubber rollers with a lint free cloth that is moist with water
4. Make sure that the carriage can move freely
5. Remove then reinstall the ink cartridges
6. Make sure that the control-panel faceplate is correctly installed
7. Plug the printer directly to the wall outlet
8. Perform a partial reset on the printer.
a. Unplug the power cord from the All in One
b. Press and hold # and 3 while plugging the power cord
c. Do not release the two buttons unless the printer would say reset
9. Try to print
10. If this would not resolve your issue then the printer sensor is already defective.

your printer is having hardware problem,please get it serviced with printer professional or to the vendor

Hi, I have a HP Photosmart 8050. Runs good till Now. 1, ONE Sheet of paper Jamed. THe RED Light Keeps Blinking Like crazzzy. I unhooked it to re-boot. It says Print Cartridge Cradle is stuck. Clear Jam & press OK. Iv'e L@@KED 4 anything. Nothing in way. I took the ONE sheet out. Still Nothing. It's Like my X-wife. 1 item wrong and a Bunch of ****. New Ink. Got Milk. Oh wrong Commercial. Got Fix. Retired Handi-capped sanior, Ron