HP Officejet 6600 e-All-in-One Printer - H711a H711g - Manual (Page 25)

3. Insert the media print-side down in the tray. Make sure the stack of media is
inserted as far inside the printer as possible and does not exceed the line
marking in the tray.
NOTE: Do not load paper while the printer is printing.
4. Slide the media guides in the tray until they touch the edge of the stack of media.
5. Lower the output tray.
6. Pull out the tray extender.
Load envelopes
To load envelopes
Use these instructions to load an envelope.
1.
Lift the output tray.
2. Slide out the paper width guides in the input tray as far as possible.
Load media 21