clutch again. The feed roller moves the media farther into the product. The registration shutter corrects
page skew and the media is transported to the fuser/delivery block.
Fuser/delivery block
The fuser/delivery block consists of rollers, sensors, the fuser, and the output delivery assembly. The
rollers transport the media through the fuser/delivery block paper path. The fuser applies heat and
pressure to the media to permanently bond the toner image to the media. The output delivery assembly
sends the printed media either to the rear output bin (if the rear output door is open) or to the top output
bin (the default output delivery bin). Sensors along the paper path detect media movement, jams, and
the top output-bin capacity.
Pressure roller pressure release control
The product releases the pressure roller except during a print operation to improve usability for jammed
paper removal.
The DC controller reverses the fuser motor (M299) to rotate the fuser pressure release cam. The
pressure roller is pressurized or depressurized due to the shape of the cam.
The DC controller reverses the fuser motor to control the pressure roller pressurize or depressurize state
according to the signal sent from the fuser pressure release sensor (PS699).
Figure 1-27 Pressure roller pressure release control
PS699
M299
FIXING MOTOR
DRIVE signal
DC controller
Fuser sleeve
Pressure roller
Fuser pressure
release cam
Fuser pressure release sensor
Fuser motor
FIXING PRESSURE RELEASE signal
<Pressurized> <Released>
ENWW
Pickup, feed, and delivery system
33
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