Dc Voltages And Applications - Epson DFX-8000 Service Manual

REV.-A

DC Voltages and Applications

2.2.1
Table 2-13 lists the applications of the DC voltages required by this printer.
Voltage
+ 35V
(vPI)
+ 35V
+ 5V
+ 12V
– 12V
This printer has the following functions to help cope with abnormal operation:
Monitors the head drive circuit on the VP 1 (+35 VDC) line, and cuts the voltage if an abnormality '
is detected.
Interlock for the VP3 (+35 VDC) carriage motor common line
Monitors the VP3 (+35 VDC) line, and cuts the voltage if any voltage fluctuation is detected.
Table 2-13. DC Voltages
Rated Current
1.5A
1.5A
1.5A
—
2A
—
—
2 - 1 6
Application
Printer mechanism voltage
d r i v e
Printer mechanism voltage
d r i v e
Printer mechanism voltage
P l u n g e r
f a n
Carriage motor
Paper feed motor
Platen gap motor
Ribbon feed motor
Power supply board cooling fan
Printer mechanism voltage
Plunger holding
Platen gap motor holding
Carriage motor encoder power
S e n s o r
Main board control circuit voltage
Reset voltage (VX)
Control panel circuit voltage
Cover open sensor power
Main board voltage
(serial interface level conversion)
Optional interface voltage supply