Perfection 4870 Photo
Revision A
PRODUCT DESCRIPTION
Basic specification
10
1.2 Basic specification
SCANNER BASIC SPECIFICATION
Product Type
Flatbed color image scanner
Scanning method
Fixed document and CR moving
Photoelectric device
Alternative 6 lines Color CCD with micro
lens
Document size
A4, US letter size document
Max scan size
216mm x 297mm (8.5" x 11.7")
Maximum effective picture element 40,800 x 56,160 pixels (4800dpi)
Scanning resolution
Main
4800dpi
Sub
9600dpi with Micro Step
Output resolution
25 - 12800 dpi (1dpi step)
Pixel depth
Each pixel, each color
16 bits (input)
16 bits (output)
Scanning speed
4800dpi Draft Mode
600dpi Draft Mode
Command level
ESC/I-B8
FS
Dimensions
304 (W) x 476 (D) x 134 (H) mm
Weight
6.7kg
Warm up time
Within 30sec (25ºC)
Within 45sec (5ºC)
Image processing function
Gamma Correction
Output-by-output correction: Standard 5 level
CRT 2 level (A, B)
PRINTER 3 level (A, B, C)
User defined 1 level
Color Correction
Output-by-output correction: Standard 4 level
Impact-Dot Printer
Thermal Printer
Ink-Jet Printer
CRT Display
User defined
Brightness
7 levels
Data processing
Bi-level
Error Diffusion 3 mode (A, B, C)
Dither (Resident) 4 mode (A, B, C, D)
TET, AAS
Quad-level
Error Diffusion 3 mode (A, B, C)
Dither (Resident) 4 mode (A, B, C, D)
Interface
IEEE1394 and USB2.0 High speed
Connector: 6pin connector x1 (IEEE1394)
Standard B connector x1 (USB2.0)
USB host
The operation of the USB port should be guaranteed by
the maker.
Hub
This device must be connected directly to the host or to
the hub in the Tier 1 with the recommended USB cable.
Light Source
White Cold cathode Fluorescent Lamp
IR LED (For Digital ICE for Film)
Start Button
1 push Button: Ease of use with EPSON Smart Panel
Driver
EPSON Scan
Monochrome (bi-level)
16.9 msec/line
Color
16.9 msec/line
Monochrome (bi-level)
4.1 msec/line
Color
4.1 msec/line
Summary of Contents for Perfection 4870 Photo
Page 1: ...EPSON Perfection4870Photo Color Image Scanner Service Manual SESC03 008 ...
Page 5: ...Revision Status Revision Date of Issue Description A December 10 2003 First release ...
Page 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 19: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 29: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 37: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 63: ...C H A P T E R 5 ADJUSTMENT ...
Page 65: ...C H A P T E R 6 MAINTENANCE ...
Page 68: ...C H A P T E R 7 APPENDIX ...
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