Intermec PB50 - Manual (Page 23)

Chapter 1 — Using the PB50 Mobile Label and Receipt Printer
PB50 Mobile Label and Receipt Printer User’s Guide 13
5 Close the media cover until it latches. The printer emits the
hardware sound to tell you that the media door closed correctly.
6 Press down on the self-strip door to make sure the media cover is
completely latched.
7 Press and hold the Feed button for more than two seconds to
calibrate the media.
Note: The linerless printer does not have a self-strip door. Instead,
the self-strip door is molded plastic and part of the media cover.