HP 3500 - Manual (Page 79)

Y dimension
The Y dimension is the length of the page as it feeds into the printer.
1. Press to highlight Y DIMENSION.
2. Press to select Y DIMENSION.
3. Press or to highlight the correct value.
4. Press to select the value. If the value entered is outside the valid range, Invalid value
will appear for two seconds. The display prompts you to enter another value.
Printing from Tray 1 (multipurpose tray)
Tray 1 is a multipurpose tray that holds up to 100 sheets of paper or 10 envelopes. It
provides a convenient way to print envelopes, transparencies, custom-size paper, or other
types of paper without having to unload the other trays.
ENWW Configuring trays 67