Epson 1640XL Specifications, Scanner, General, Color depth, Scanner type, Optical density, Grayscale depth, Effective pixels, Color separation, Output resolution

Specifications

This appendix includes general, electrical, environmental, and interface specifications. It also includes specifications for the transparency unit, automatic document feeder, and IEEE 1394 FireWire scanner interface card.

ScannerGeneralScanner type

Flatbed, color

Photoelectric device

Color MatrixCCD line sensor

Effective pixels

19520 × 27520 pixels at 1600 dpi,

100% scaling

Optical density

3.6 Dmax

Color depth

42-bit internal/42-bit external

Grayscale depth

14-bit internal/14-bit external

Maximum document size

12.2× 17.2 inches (310 × 437 mm) A3 or Letter

(The reading area can be specified from your software)

Output resolution

50 dpi - 9600 dpi

50 to 4800 in 1 dpi increments

7200 and 9600 dpi with zoom

Maximum hardware resolution*

1600 dpi (main scan)

3200 dpi with Micro Step Drive (sub scan)

*The maximum hardware resolution of 1600 × 3200 dpi is achieved using EPSON’s Micro Step Drive technology

Maximum interpolated resolution

12800 × 12800 dpi

Speed (1600 dpi, draft mode)

Color:	9.2 msec/line (approx.)
Grayscale:	3.1 msec/line (approx.)
Line Art:	3.1 msec/line (approx.)

Color separation

RGB color filters on CCD

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