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TABLE OF CONTENTS
1 OVERALL MACHINE INFORMATION ......................................... 1-1
1.1 SPECIFICATIONS.....................................................................................1-1
1.2 MACHINE CONFIGURATION ...................................................................1-5
1.2.1 SYSTEM COMPONENTS ................................................................1-5
1.2.2 INSTALLABLE OPTION TABLE .......................................................1-7
Copier options.......................................................................................1-7
Fax option .............................................................................................1-7
Printer/scanner options .........................................................................1-7
1.3 PAPER PATH............................................................................................1-8
1.4 MECHANICAL COMPONENT LAYOUT ...................................................1-9
1.5 ELECTRICAL COMPONENT DESCRIPTIONS ......................................1-11
1.6 DRIVE LAYOUT ......................................................................................1-14
1.7 COPY PROCESS....................................................................................1-15
1.7.1 OVERVIEW ....................................................................................1-15
1.8 BOARD STRUCTURE.............................................................................1-17
1.8.1 OVERVIEW ....................................................................................1-17
1.8.2 CONTROLLER ...............................................................................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 (SENSOR BOARD UNIT).........................................................2-6
2.2.3 AUTO IMAGE DENSITY...................................................................2-7
2.2.4 IPU (IMAGE PROCESSING UNIT)...................................................2-8
Overview...............................................................................................2-8
Image Processing Modes .....................................................................2-9
Image Processing Path.......................................................................2-10
Overview.............................................................................................2-10
SP Modes for Each Image Processing Step .......................................2-11
Text Mode...........................................................................................2-11
Photo Mode ........................................................................................2-12
Text/Photo Mode ................................................................................2-13
Pale Mode...........................................................................................2-14
Generation Copy.................................................................................2-15
Auto Shading ......................................................................................2-16
Pre-Filtering ........................................................................................2-16
Main Scan Magnification/Reduction....................................................2-16
Mirroring for ADF Mode ......................................................................2-16
Characteristic Detection......................................................................2-17
Filtering ...............................................................................................2-17
Overview.............................................................................................2-17