HP LaserJet Pro MFP M521 - Page 28

Figure 1-8 Switches (Tray 2 and Tray 3)
PS451
PS8008
SL3
M8001
SW461
CL1
Table 1-7 Switches (Tray 2 and Tray 3)
Item Description
SW461 Paper feeder cassette presence switch
NOTE: Tray 2 and Tray 3 are identical 500-sheet input trays.
12 Chapter 1 Theory of operation ENWW