Epson Stylus Pro 4450 - ASF Paper Feed Mechanism; Rear Manual Insertion Sensor; Paper Feed Mechanism Sensors

EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Operating Principles Printer Mechanism Components 134
 Rear Manual Insertion Sensor
This reverse tension switch sensor (mechanical contact) is mounted at the
rear surface of the printer. The sensor detects paper being fed from the
manual insertion slot.
Figure 2-30. Paper Feed Mechanism Sensors
2.2.5.1 ASF Paper Feed Mechanism
This printer is equipped with an ASF Unit for feeding cut sheet paper.
Operating principles of the ASF Unit are described below.
Figure 2-31. ASF Paper Feed Mechanism
P_THICK_0.8 SensorP_THICK_0.3 Sensor
Rear Manual Insertion Sensor
PE Sensor
PF Encoder Sensor
ASF Paper SensorASF Phase Sensor
Detector
Wheel
ASF Unit
LD Roller
LD Roller