Ricoh A231 Руководство по эксплуатации - Страница 2

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1. OVERALL MACHINE INFORMATION ........................................ 1-1
1.1 SPECIFICATIONS .................................................................................... 1-1
1.2 PAPER EXIT TRAY SELECTION............................................................. 1-5
1.3 MACHINE CONFIGURATION .................................................................. 1-6
1.3.1 SYSTEM COMPONENTS ............................................................... 1-6
1.3.2 INSTALLABLE OPTION TABLE ...................................................... 1-8
Copier options ...................................................................................... 1-8
Fax options .......................................................................................... 1-8
1.4 MECHANICAL COMPONENT LAYOUT................................................... 1-9
1.5 PAPER PATH ......................................................................................... 1-11
1.6 ELECTRICAL COMPONENT DESCRIPTIONS...................................... 1-12
1.7 DRIVE LAYOUT ..................................................................................... 1-15
1.8 COPY PROCESS ................................................................................... 1-16
1.8.1 OVERVIEW ................................................................................... 1-16
1.9 BOARD STRUCTURE ............................................................................ 1-18
1.9.1 BLOCK DIAGRAM ......................................................................... 1-18
1.9.2 DESCRIPTIONS ............................................................................ 1-19
2. DETAILED SECTION DESCRIPTIONS....................................... 2-1
2.1 SCANNING............................................................................................... 2-1
2.1.1 OVERVIEW ..................................................................................... 2-1
2.1.2 SCANNER DRIVE ........................................................................... 2-2
2.1.3 ORIGINAL SIZE DETECTION IN PLATEN MODE .......................... 2-3
2.2 IMAGE PROCESSING ............................................................................. 2-5
2.2.1 OVERVIEW ..................................................................................... 2-5
2.2.2 SBU ................................................................................................. 2-6
2.2.3 AUTO IMAGE DENSITY (ADS) ....................................................... 2-7
2.2.4 IPU (IMAGE PROCESSING UNIT).................................................. 2-8
Overview .............................................................................................. 2-8
Image processing path......................................................................... 2-9
SP modes for each image process .................................................... 2-10
Auto shading ...................................................................................... 2-12
Background erase .............................................................................. 2-12
Independent dot erase ....................................................................... 2-13
Filtering, main scan magnification/reduction ...................................... 2-14
Gamma (γ) correction......................................................................... 2-15
Gradation processing ......................................................................... 2-15
2.2.5 MEMORY BLOCK.......................................................................... 2-18
Binary picture processing mode ......................................................... 2-19
Grayscale processing mode............................................................... 2-20
2.2.6 FCI (FINE CHARACTER IMAGE).................................................. 2-21
2.3 LASER EXPOSURE ............................................................................... 2-22
SM
A230/A231/A232
TABLE OF CONTENTS
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A230/A231/A232