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
Summary of Contents for Stylus Pro 4800 Portrait Edition
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 113: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 156: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 200: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 366: ...C H A P T E R 5 ADJUSTMENT ...
Page 448: ...C H A P T E R 6 MAINTENANCE ...
Page 457: ...C H A P T E R 7 APPENDIX ...