Epson 1640XL Product Information Guide - Page 1

EPSON Expression 1640XL Scanner Parts carriage (at home position) document cover document table ] Start button transportation lock control panel SCSI ID terminator switch dial optional interface slot USB SCSI interfaces AC inlet interface option connector (ADF/TPU) transportation lock Scanner Specifications Scanner General Scanner type Maximum document size Photoelectric device Effective pixels Flatbed, color 12.2 × 17.2 inches (310 × 437 mm) A3 or Letter (The reading area can be specified from your software) Color MatrixCCD line sensor 19520 × 27520 pixels at 1600 dpi, 100% scaling 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 Output resolution 50 dpi - 12800 dpi 50 to 6400 in 1 dpi increments Zoom 50 to 200% in 1% increments Maximum interpolated resolution 12800 × 12800 dpi Line art 1 bit per pixel Speed (1600 dpi, Color: 13.2 msec/line (approx.) draft mode) Grayscale: 4.5 msec/line (approx.) Line Art: 4.5 msec/line (approx.) Color separation RGB color filters on CCD Reading sequence Monochrome: One-pass scanning Color byte sequence: One-pass scanning (R, G, B) Color line sequence: One-pass scanning (R, G, B) Command level ESC/I-B8 Optical density 3.6 Dmax Color depth 42-bit internal/42-bit external Grayscale depth 14-bit internal/14-bit external Pixel depth 14 bits per pixel (14 bits per pixel input, 1 to 14 bits per pixel output) Brightness 7 levels Line art settings Fixed threshold TET (Text Enhancement Technology, enable/disable selectable) Area separation AAS (Auto Area Segmentation, enable/disable selectable) Digital halftoning 3 halftoning modes (A, B, and C) 4 dither patterns (A, B, C, and D) for bi-level and quad-level data (2 downloadable dither patterns) Gamma correction 2 types for CRT display 3 types for printer 1 type user-defined Color correction 1 type for CRT display 3 types for printer (available in color byte sequence mode and color line sequence mode) 1 type user-defined 8/00 EPSON Expression 1640XL - 1