The MP tray media presence sensor detects the presence of print media on the MP tray.
Figure 1-38 Tray 1 (MP tray) paper pickup
MP tray pickup roller
MP tray separation pad
SL2
M5
PS2:
MP tray media presence sensor
Pickup motor
MP tray pickup solenoid
Lifting plate
DC controller
Tray 1 (MP tray) last-paper detection
The product detects whether the print media on the MP tray is the last sheet during continuous printing
to prevent toner contamination on the photosensitive drums and the ITB.
The product attempts to form the next image before the DC controller detects a media absence because
the paper path between the MP tray media-presence sensor and the registration roller is short. To
prevent the photosensitive drums and the ITB from being contaminated with toner, the last-paper sensor
detects the last-paper. The MP tray last-paper detection roller rotates when the last-paper is picked up.
54 Chapter 1 Theory of operation ENWW