HP LaserJet Pro 4001dw Monochrome Wireless Printer - Manual (Page 31)

Table 2-3 Tray 3 paper orientation
Paper type Output How to load paper
Letterhead or preprinted 1-sided printing Face-down
Top edge at the front of the tray
3
12
3
2
1
Letterhead or preprinted 2-sided printing Face-up
Top edge at the back of the tray
3
123 2
1
Load and print envelopes
Review the following information about loading and printing envelopes.
Introduction
The following information describes how to load and print envelopes.
Use only Tray 1 to print on envelopes. Tray 1 holds up to 10 envelopes.
22 Chapter 2 Paper trays