HP 2100 TN - Manual (Page 33)

EN Chapter 1 Printer Basics 21
Printing Instructions
1. Make sure the printer is in ready state (Ready light on).
2. Align an IrDA-compliant computer within 1 meter (3 feet) of the IR
port. Ensure that the ports are facing each other with no more
than a 15° angle to either the left and right or above and below.
Send the print job from the computer. The IR status light will turn
on when the connection has been made.
1 Meter
(3 Feet)
15 °