Epson AcuLaser C4000 Service Manual page 96

EPSON AcuLaser C4000/C4100/C3000
PWB DRIVE (PL15.1.15)
Controls the motor and other components according to PWBA MCU &
HVPS signals and sends data from sensors/switches to PWBA MCU &
HVPS. Power from the LVPS passes through this PWB and is supplied to
PWBA MCU & HVPS. This PWB is equipped with an interlock switch.
PWB DRIVE has the following main functions:
• Reception of data from sensors/switches
• Control of DRIVE ASSY MAIN (PL14.1.2), DRIVE ASSY DEVE
(PL14.1.1), DRIVE ASSY FUSER (PL6.1.18), MOTOR ASSY DUP
(PL8.1.8), and Toner Motors in HOLDER ASSY (PL12.2.5~8)
• Distribution of low voltage DC power from LVPS to each component
• Interruption of "24VDC" circuits by interlock switch activation
PWB CONTROLLER (PWB ESS) (PL16.1.5)
Receives data from the host computer, executes printing, and has overall
control of the printer.
Operating Principles
Figure 2-31. Electrical & CONTROLLER BOARD (ESS)
Functions of Main Components
Revision F
2-80