Figure 1-34  Skew-feed prevention
Registration shutter
Paper
Registration shutter
Paper
Tray 2 media type detection
The printer selects the optimal print mode based upon the media type detected by the media sensor. The 
media sensor consists of an optical sensor, which detects the surface texture of the paper, and an ultrasonic 
sensor, which measures the thickness of the paper.
Following are the print modes detected by the printer:
●
Normal
●
Heavy media 1
●
Heavy media 2
●
Heavy media 3
58 Chapter 1   Theory of operation ENWW