Epson Stylus DX4850 Service Manual

EPSON Stylus CX4100/CX4200/CX4700/CX4800/DX4200/DX4800/DX4850 Revision A
OPERATING PRINCIPLES Electrical Circuit Operating Principles 79
2.4.1 C610 PSB/PSE Board
In the PSB/PSE Board of Stylus CX4100/CX4200/CX4700/CX4800/DX4200/
DX4800/DX4850, the simulated oscillating stimulation flyback converter circuit
method is used, and it supplies +42VDC to the drive line. The application of the output
voltage is described below.
AC voltage input from AC inlet first goes through filter circuit that removes high
frequency components and is then converted to DC voltage via the rectifier circuit and
the smoothing circuit. DC voltage is then lead to the switching circuit and FET Q1
preforms the switching operation. By the switching operation of the primary circuit,
+42VDC is generated and stabilized at the secondary circuit.
Table 2-7. Application Of The DC Voltages
Voltage Application
+42VDC
• Motors (CR Motor, PF Motor, Scanner Motor)
• Print Head common voltage
• Print Head nozzle selector 42V drive voltage

Epson Stylus DX4850 Specifications

General

Brand	Epson
Model	Stylus DX4850
Category	Printer
Language	English