Epson Scan 2500 service manual Electrical Circuit Operating Principles

EPSON Stylus Scan 2500

Revision A

2.5 Electrical Circuit Operating Principles

EPSON Stylus Scan 2500 contains the following three electric circuit boards.

V	Electronic Boards for Stylus Color 2500 are;
	Main:	B102	Main Board
	Power Supply:	B102 PSB/PSE Board
	Panel:	B102	PNL Board

B102 PSB/	+5V/
PSE Board	3.3V
	DC
AC Input	+42V/
	24VDC
+12VDC

B102 MAIN Board

			C
		D				C
		V		C
		4				D
	2			D		V
	/				3
2			V .
4		5		3
+		+		+

Ink End

and P-off

time

Refer to Figure 2-21 for the major connection of the 3 boards and their roles.

CR Motor	CR HP
	Sensor

+5VDC

PF Motor

PE

Sensor

B102	LED &
PNL	LCD

(Pump Motor)

B/CMY Ink

Out Sensor

Thermisto

Printhead

Nozzle selector

Board

Option

+24VDC

Scanner HP

Sensor

Maintenance

Cover Sensor

Scanner Motor

CCD Sensor

+12VDC

Scanner

Figure 2-21. Electric Circuit of Stylus Color 2500

Operating Principles Electrical Circuit Operating Principles 54