Envelope jam HP Officejet 8500

Please check paper feed senor. this is switch by small lever.

HP designed a quick and easy tool that diagnoses and resolves many printing problems: The HP Print Diagnostic Utility. HP recommends that you download and install the Print Diagnostic Utility any time you need to troubleshoot a printing problem.

Hi there,

Paper jams can occur in the following areas
1 Top cover and toner cartridge area
2 Optional envelope feeder
3 Input tray areas
4 Optional duplexer
5 Output areas (top and rear)
6 Fuser area

Solving repeated paper jams
*
Check all the paper jam locations. A piece of paper might be stuck somewhere in the printer. Even a small torn piece of paper in the printer path can cause repeated jams.
*
If using a duplexer, check all areas (including under the duplexer).
* Check that paper is correctly loaded in the trays, that all three adjustments have been made, and that the trays are not overfilled. Make sure paper is under the front and back tabs.
* Check that all trays and paper handling accessories are completely inserted into the printer. (If a tray is opened during a print job, this might cause a paper jam.)
* Check that all covers and doors are closed. (If a cover or door is opened during a print job, this might cause a paper jam.)
* Try printing to a different output bin.
* The sheets might be sticking together. Try bending the stack to separate each sheet. Do not fan the stack.
* If you are printing from tray 1, try reducing the size of the stack.
* If printing from the envelope feeder, make sure it is loaded correctly, pushing the bottom envelopes in slightly farther than the top envelopes.
* If you are printing small sizes, feed paper short edge first.
* Turn over the stack of paper in the tray. Also try rotating the paper 180°.
* Check the characteristics of the media you are using. Use only paper that meets HP specifications (see the online user guide for paper specifications). Try using different paper to see if the problem goes away. Do not use curled, deformed, damaged, or
irregular paper.
* Avoid using paper that has already been used in a printer or copier.
* Do not print on both sides of envelopes or transparencies.
* Print only on full sheets of labels and do not print on both sides of label sheets.
* Check that the power supplied to the printer is steady and meets printer specifications (see the online user guide for printer specifications).
* Clean the printer (see the online user guide procedures).

Hope this helps.
Please rate my response.
Thanks
Have a good day.

If the paper is lodged too far into the printer and can't be removed:
Press the power button to turn the printer off.
Pull firmly on the paper to remove it. If you can't reach the paper because it is too far in, raise the front cover and remove the paper from the front of the printer.
Close the front cover.
Press the power button to turn the printer back on.
Resend your document to print.

Ensure that:
The paper is a recommended paper for inkjet printers.
You do not force the paper down into the printer when you load it. For example, if you are loading letter or A4 size paper, the top edge of the paper should extend above the top of the sheet feeder.
The printer is on a flat, level surface.
The left paper guide is against the side of the paper.
You do not load too much paper in the sheet feeder. Depending on the thickness of your paper, the sheet feeder can hold up to 100 sheets of paper.
The left paper guide does not cause the paper to bend in the sheet feeder.
Your printer feeds regular paper as expected. If regular paper feeds without causing problems, load the envelopes vertically against the right side of the sheet feeder. Make sure the paper guide is against the side of the envelopes.
Envelopes or the appropriate specialty papers are selected in the printer driver.
You are using a paper or envelope size supported by your printer.

I removed paper from jam, red light will not quit flashing, I turned
printer off and on again, but it will not print and red light will not
quit flashing, What can I do?

If the paper is lodged too far into the printer and can't be removed:
Press the power button to turn the printer off.
Pull firmly on the paper to remove it. If you can't reach the paper because it is too far in, raise the front cover and remove the paper from the front of the printer.
Close the front cover.
Press the power button to turn the printer back on.
Resend your document to print.

Ensure that:
The paper is a recommended paper for inkjet printers.
You do not force the paper down into the printer when you load it. For example, if you are loading letter or A4 size paper, the top edge of the paper should extend above the top of the sheet feeder.
The printer is on a flat, level surface.
The left paper guide is against the side of the paper.
You do not load too much paper in the sheet feeder. Depending on the thickness of your paper, the sheet feeder can hold up to 100 sheets of paper.
The left paper guide does not cause the paper to bend in the sheet feeder.
Your printer feeds regular paper as expected. If regular paper feeds without causing problems, load the envelopes vertically against the right side of the sheet feeder. Make sure the paper guide is against the side of the envelopes.
Envelopes or the appropriate specialty papers are selected in the printer driver.
You are using a paper or envelope size supported by your printer.

If the paper is lodged too far into the printer and can't be removed:
Press the power button to turn the printer off.
Pull firmly on the paper to remove it. If you can't reach the paper because it is too far in, raise the front cover and remove the paper from the front of the printer.
Close the front cover.
Press the power button to turn the printer back on.
Resend your document to print.

Ensure that:
The paper is a recommended paper for inkjet printers.
You do not force the paper down into the printer when you load it. For example, if you are loading letter or A4 size paper, the top edge of the paper should extend above the top of the sheet feeder.
The printer is on a flat, level surface.
The left paper guide is against the side of the paper.
You do not load too much paper in the sheet feeder. Depending on the thickness of your paper, the sheet feeder can hold up to 100 sheets of paper.
The left paper guide does not cause the paper to bend in the sheet feeder.
Your printer feeds regular paper as expected. If regular paper feeds without causing problems, load the envelopes vertically against the right side of the sheet feeder. Make sure the paper guide is against the side of the envelopes.
Envelopes or the appropriate specialty papers are selected in the printer driver.
You are using a paper or envelope size supported by your printer.

Turn the printer off and open the access cover.
Look for any obstructions in the paper path and remove them if necessary. (It is possible to move the carrier assembly with the power off.)
Turn the printer on, load some paper, and press the Form Feed button. (On the X83, press the Select button.)
Watch the paper as it feeds through and try to determine where the jam is occurring.
Check to see if all the rollers are turning.

If all the rollers are turning, there may be something in the feed path that you can't see. Go to step 6.
If not, there is probably a feed motor or a gear problem and the printer may require service.

If the paper is jamming under the carrier assembly, you may be able to fix it using the manual feed slot.
Turn the printer off.
Take a #10 envelope and feed it through the left side of the manual feed slot until it comes right through the printer to the back of the exit rollers.
Move it up and down first, and then slowly move it over to the right side. If something is stuck under the black guide plate, this may work it loose.

If the paper is lodged too far into the printer and can't be removed:
Press the power button to turn the printer off.
Pull firmly on the paper to remove it. If you can't reach the paper because it is too far in, raise the front cover and remove the paper from the front of the printer.
Close the front cover.
Press the power button to turn the printer back on.
Resend your document to print.

Ensure that:
The paper is a recommended paper for inkjet printers.
You do not force the paper down into the printer when you load it. For example, if you are loading letter or A4 size paper, the top edge of the paper should extend above the top of the sheet feeder.
The printer is on a flat, level surface.
The left paper guide is against the side of the paper.
You do not load too much paper in the sheet feeder. Depending on the thickness of your paper, the sheet feeder can hold up to 100 sheets of paper.
The left paper guide does not cause the paper to bend in the sheet feeder.
Your printer feeds regular paper as expected. If regular paper feeds without causing problems, load the envelopes vertically against the right side of the sheet feeder. Make sure the paper guide is against the side of the envelopes.
Envelopes or the appropriate specialty papers are selected in the printer driver.
You are using a paper or envelope size supported by your printer.

Hi, When you had the doucment feed jam were you able to clean or remove any paper that might be blocking the paper to be scanned? It sounds like there is paper still in the document feeder , I would open the DF and check very closely to make sure no paper is in the way!Good Luck!