Epson Scan 2500 service manual Scanner, Aas

EPSON Stylus Scan 2500 Revision A

1.3 Scanner

Product type	Flat-bed color image scanner
Sub scan method	Movement of scan head
Photoelectric device	Color CCD line sensor
Max. scan area	8.5 x 11.7” (216 x 297mm)
Max. effective pixels	5100 x 7020 pixels (600dpi)
Scan resolution	main = 600dpi
	sub = 1200dpi
Output resolution	50~4800 dpi (1dpi increments)
	(4800 dpi at 200% reaches the limitation of
	maximum 16,368 pixels at 9600 dpi for main scan)
Scan speed (600dpi, Draft mode)
	Color = 8.1msec/line
	Monochrome (bi-level) = 2.7msec/line
Color separation	By the CCD color filter
Command level	ESC/I - B7
Zoom	50~200% (1% increments)
Pixel depth	8 bits/pixel/color (input 12 bits/pixel/color,
	output 8 bits/pixel/color)
Gamma correction	CRT two levels (A,B)
	PRINTER three levels (A,B,C)
	User defined = one level
Color correction	Impact-dot printer
	Thermal printer
	Ink-jet printer
	CRT display
	User defined
Brightness	Seven levels

Line art	Fixed threshold
	TET
Digital halftoning	AAS
	Error diffusion three modes (A,B,C)
(Bi-level, Quad-level)	Dither (resident) four modes (A,B,C,D)
	Dither (user defined) two modes (A,B)
Interface	USB and IEEE1284.4
Light source	White cold cathode fluorescent lamp
Option	TPU (for GT-7000)
	ADF (for GT-7000)

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