Epson Stylus Pro 4450 - Others; P-Cover Open Sensor; Rear Cover Sensor; Circuit Board Layout

EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Operating Principles Printer Mechanism Components 151
2.2.8 Others
P-COVER OPEN SENSOR
This sensor is mounted at the Printer Cover right side open/close components
to detect the open or closed condition of the Printer Cover.
Dtecting open/closed status of the cover causes the CR Motor and PF Motor
circuits to stop/operate the motors.
REAR COVER SENSOR
This sensor is mounted at the printer right rear side to detect the removed/
installed condition of the Paper Guide Unit.
Detecting installed/uninstalled status of the unit causes the CR Motor and PF
Motor circuits to stop/operate the motors.
CIRCUIT BOARD LAYOUT
A Panel Unit is mounted to the printer front right surface, and an AC Inlet,
Power Supply Circuit Board and MAIN Circuit Board are mounted in a rear
surface compartment.
Figure 2-60. Cover Sensor/Panel Unit
Figure 2-61. Circuit Board Layout
Panel Unit
P-Cover Open Sensor
Rear Cover Sensor
AC Inlet
MAIN Circuit
Board
Power Supply
Circuit Board