EPSON AcuLaser CX11/CX11F Revision B
OPERATING PRINCIPLES Printer Section Operating Principle 120
2.2.6 Electrical
This section explains and illustrates the main functional components making up the
Electrical system.
MAIN FUNCTIONS
 PWBA MCU
PWBA MCU performs communication with the printer controller, and controls the
parts to perform printing operations.
 LV/HVPS
LV/HVPS supplies +24 VDC, + 5VDC and +3.3 VDC to each of the parts from
the AC power supply, and supplies high voltage to the parts for transferring and
discharging.
 PWBA HVPS
PWBA HVPS supplies high voltage to IBT Cleaner, 2nd BTR, and Cleaning
Sheet.
 PWBA HVPS
PWBA HVPS supplies high voltage to IBT Cleaner, 2nd BTR, and Cleaning
Sheet.
 PWB ASSY ROT
PWB ASSY ROT creates the pulse for the motors according to input signal from
the PWBA MCU and supplies the pulse signal to the motors.
 PWBA ESS
Converts print data transmitted via a network, USB, parallel port or etc., and
communicates with a host computer. The memory can be expanded up to 512 MB
with an optionally available additional memory.
 OP PANEL
OP PANEL displays the printer status on the LCD or by LEDs. Printer operations
are performed by the buttons on OP PANEL.
 SWITCH-FUSER DOOR
SWITCH-FUSER DOOR detects whether the COVER FUSER is opened or
closed.
Figure 2-56. Main Functional Components of Electrical
SWITCH-FUSER DOOR
FUSER LOCK SWITCH
SWITCH 2BTR COVER
SWITCH-INLK FRONT
SWITCH ASSY TOP
PWBA HVPS
PWB ASSY ROT
PWBA MCU
LV / HVPS
PWBA CRUM
PWBA FUSER CONT
SWITCH-FRONT DOOR
SWITCH-PH DOOR
SWITCH-INLK FUSER
Leg_06_061RA
Main Board
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