HP Deskjet 6122 Color Inkjet Printer - Manual (Page 62)

Setup
Paper Type: Automatic or appropriate
transparency film
Paper Tray: Upper
2. Select any other desired print settings, then click OK .
For a description of available print options, see print settings .
The printer may wait for transparencies to dry before releasing them to the Out tray.
printing transparencies
1. Open the Printer Properties dialog box, then select the following setting:
tab setting