3. The cassette lifting plate lifts the media stack, and the cassette pickup roller picks up one sheet.
The separation pad prevents multi-feeds.
Paper
Paper
separation pad
Cassette pick-up roller
Lifting plate
Spring
1 )
2 )
3 )
Figure 4-7 Cassette (tray 2) pickup mechanism
Multipurpose-tray (tray 1) pickup mechanism
Tray 2 must be installed in order for tray 1, the multipurpose (MP) tray, to operate. The MP-tray paper
sensor (SR3) detects whether media is present. When tray 1 is correctly installed and contains media,
the MP-tray pickup operation begins.
1. The DC controller receives a print command from the formatter and rotates the main motor (M1)
at the correct speed for the media type.
2. After the motor reaches the correct speed and the fuser is at the correct temperature, the MP pickup
solenoid (SL2) turns on and the MP pickup roller rotates.
3. The MP pickup roller picks up one sheet of media. The separation pad prevents multi-feeds.
4. The MP tray media sensor detects the media type as the media enters the printer.
Jam detection
1. Cartridge sensor assembly
2. Paper and registration sensor covers
3. Cassette media sensor
A pick-up delay jam can occur during operation. The printer makes three attempts to pick up media from
a tray. When the top-of-page sensor (SR5) does not detect the leading edge of a page within 4.5 seconds
after the third attempt, the printing operation stops.
58 Chapter 4 Theory of operation ENWW
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