HP Photosmart Pro B9180 Photo Printer - Manual (Page 16)

If you extended or removed the main tray to load paper, push in the main tray to the
end of the paper by squeezing the release and pushing in the tray, and push the tray
back into the printer until it is fully seated. Be sure to adjust the length of the main
tray and reseat the tray in the printer before you adjust the paper-length and
paper-width guides or the paper will jam.
4. Adjust the paper-width and paper-length guides so they rest gently against the edges
of the paper.
5. Check that the paper is lying flat in the tray.
6. Replace the output tray. If you are printing on paper larger than 21.6 x 28 cm
(8.5 x 11 inches), pull out the output tray extension by holding the output tray with
one hand and pulling out the extension with your other hand. Flip up the paper catch.
Note If you are using non-HP brands of glossy media in the main tray, and the
printer does not feed the paper or feeds multiple sheets through at once, try
reducing the number of sheets in the main tray to 20 sheets, or use the specialty
media tray to print on one sheet at a time.
Load the specialty media tray
It is recommended that before you print on expensive specialty media, you practice using
the specialty media tray by loading a single sheet of plain paper and printing an image
or document.
HP Photosmart Pro B9100 series User Guide 13