Need Driver for HP OfficeJet6310 AllinOne

Are you using the tray 1 manual feed for the envelopes? If it was working for you before but now has trouble feeding from that tray you are probably going to need a new PU roller and sep pad. You can try and clean the roller with a lint free cloth and use isopropyl alcohol.

Please follow the steps below on how to print on an envelope:

• The print side of the envelope is faceup.
• The paper guides rest against the edges of the envelopes.

• You print the envelopes with Landscape orientation. Note: If you are mailing within Japan, then the envelope can be printed in Portrait orientation with the stamp in the lower right corner or in Landscape orientation with the stamp in the lower left corner. If you are mailing internationally, then print in Landscape orientation with the stamp in the upper left corner.

• You select the correct envelope size. Select the next biggest size if the exact envelope size is not listed, and set the left and right margins so your envelope is correctly positioned.

I hope this information has been helpful. Thanks.

Are you inserting the envelopes into the printer the correct way ?

Stamps .com sends you blank sheets of stamps, you insert those sheets per the instructions and print stamps to apply to the envelope.

SPENT THREE HOURS DOING THE INSANE OVER AND OVER AGAIN. THEN I DECIDED TO TELL THE STAMPS.COM CONFIGURE THAT IT PRINTED A TRIANGE WHEN IF FACT THE PRINTER ERROR MESSAGE"Paper mismatch.” SHOWED UP ON THE HP MESAGE MONITOR.
I THEN CONTINUED THRU THE PROMPTS ON STAMPS.COM SOFTWARE AND CONFIRED THAT "ALL FOUR" ITEMS PRINTED ON THE ENVELOPE WHILE IN FACT IT DID NOT. THIS GET YOU THRU THE "CONFIGURE PRINTER" SETUP. THEN I SELECTED "PRINT PREVIEW" AND PRINT TEST ENVELOPE AND IT WORKED!! HOPE THIS HELPS. I HAVE NOW PRINTED 30 ENVELOPES,ALL OK.

HP J6480 ALL IN ONE PRINTER

envolpes are only to be printed from tray 1.check config of printer,set tray ! to take any size.If problems resgistration assy faulty.

I got to HP tech support, and they tell me that the envelope feeder is intended only for a few standard envelope sizes. If we're trying to use a different sized envelope, as in this case, it must be fed manually, and the feeder bin will not work. So that answers that. Thanks for the help, though.

I have been informed that these fusers have a seperate heating element in the middle of the heat roller for envelopes to save energy and it's temperature is not sensed by the thermistor.If I trick the printer (with paper path tests) into printing envvelopes while thinking that it is letter the fusing is ok.

On my MP780, be careful to select the appropriate paper type; I was getting black smudges on the left side of my envelopes until I explicitly set that my paper type was "envelope" from "plain paper".  
Another idea is to adjust the "ink drying wait time" to a higher level.

Hi, solution for your envelope

10 envelopes The print side of the envelopes faces up.
The envelopes are loaded vertically against the right side of the paper support.
The stamp location is in the upper left corner and printed with landscape orientation.

NOTE: For Japanese customers: If you are mailing within Japan, the envelope can be printed with portrait orientation with the stamp in the lower right corner or with landscape orientation with the stamp in the lower left corner. If you are mailing internationally, print landscape orientation with the stamp in the upper left corner.

The paper guide rests against the left edge of the envelopes.
You select the correct envelope size. Select the next biggest size if the exact envelope size is not listed, and set the left and right margins so that your envelope text will be correctly positioned.