Figure 2-33. Imaging Cartridge Sensor; Power Supply Circuit Function And Safety Protection - Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual

Operating Principks
2.1.3.9 Imaging Cattridge Sensor
The CRU actuator push to CRU switch and LD switch, while imaging cartridge is set to pMter. The
cut off at no imaging cartridge.

Figure 2-33. Imaging Cartridge Sensor

2.1.3.10 Power Supply Circuit Function and Safety Protection

This printer's low voltage supply board (LVPS) supplies +5 VDC and +24 VDC. The +24 VDC is
used bias voltages supply, main motor drive, polygon scanner motor drive, fan motor drive, and
solenoid drive. The +24 VDC line is cut, while interlock switch (case open switch) is off. It's a safety
protection.
Low Voltage Su@y
Board
2-22
LD Switch
Figure 2-34. Power Supply Circuit
interlock
switch
Rev. A