CONTENTS
CONTENTS
EXTERNAL SECTION ........................................... 2-C-1
[1] Composition ............................................... 2-C-1
[2] Disassembly and Re-assembly.................. 2-C-1
DRIVE SECTION ................................................... 2-D-1
[1] Composition ............................................... 2-D-1
[2] Mechanisms ............................................... 2-D-1
[3] Disassembly and Re-assembly.................. 2-D-1
[4] M1 (main) Control ...................................... 2-D-3
[5] M4 (drum) Control ...................................... 2-D-3
READ SECTION .....................................................2-E-1
[1] Composition ................................................2-E-1
[2] Mechanisms ................................................2-E-1
[3] Disassembly and Re-assembly...................2-E-1
[4] M12 (optics drive) Control ...........................2-E-7
[5] Exposure Control ......................................2-E-11
[6] Original Read Control ...............................2-E-12
[7] APS Control ..............................................2-E-12
[8] AES Control ..............................................2-E-14
WRITE UNIT ........................................................... 2-F-1
[1] Composition ................................................ 2-F-1
[2] Mechanisms ................................................ 2-F-1
[3] Disassembly and Re-assembly................... 2-F-2
[4] M5 (polygon) Control .................................. 2-F-4
[5] Image Write Control .................................... 2-F-6
DRUM UNIT ........................................................... 2-G-1
[1] Composition ............................................... 2-G-1
[2] Mechanisms ............................................... 2-G-1
[3] Disassembly and Re-assembly.................. 2-G-2
[4] PCL/TSL Control ........................................ 2-G-5
[5] Separation Claw Control ............................ 2-G-5
[6] Paper Guide Plate Control ......................... 2-G-6
CORONA UNIT SECTION ..................................... 2-H-1
[1] Composition ............................................... 2-H-1
[2] Mechanisms ............................................... 2-H-1
[3] Disassembly and Re-assembly.................. 2-H-2
[4] Charging Control ........................................ 2-H-6
[5] Transfer/Separation Control....................... 2-H-7
[6] M7 (charging wire cleaning) Control .......... 2-H-8
[7] M8 (transfer/separation wire cleaning)
Control ....................................................... 2-H-9
DEVELOPING UNIT................................................. 2-I-1
[1] Composition ................................................. 2-I-1
[2] Mechanism................................................... 2-I-1
[3] Disassembly/Assembly ................................ 2-I-2
[4] M3 (developing drive) Control ...................... 2-I-4
[5] M35 (agitator screw) control ........................ 2-I-5
[6] Developing Bias Control .............................. 2-I-5
[7] Toner Density Control .................................. 2-I-6
[8] Dmax Control ............................................... 2-I-7
[9] Gradation Correction Control ....................... 2-I-8
[10] FM30 (developing suction) Control ............. 2-I-9
1. PROCESS
OUTLINE AND COMPOSITION................................. 1-1
IMAGE READ MECHANISM ...................................... 1-2
[1] Outline............................................................ 1-2
IMAGE PROCESSING ............................................... 1-3
[1] Outline............................................................ 1-3
[2] Analog Processing ......................................... 1-3
[3] A/D Conversion.............................................. 1-3
[4] Shading Correction ........................................ 1-3
[5] Brightness/Density Conversion...................... 1-4
[6] AE Processing ............................................... 1-4
[7] Text/Dot Pattern Identification........................ 1-4
[8] Filtering .......................................................... 1-4
[9] Magnification Processing ............................... 1-5
[10] Reversal Processing...................................... 1-6
[11] Copy γ Correction .......................................... 1-6
[12] Selector, SGU................................................ 1-6
[13] Write Density Control..................................... 1-6
[14] Error Diffusion Processing ............................. 1-6
[15] Image Compression Processing.................... 1-6
[16] Memory.......................................................... 1-6
[17] Two-beam control .......................................... 1-6
IMAGE WRITE ........................................................... 1-7
[1] Outline............................................................ 1-7
[2] Collimator lens ............................................... 1-8
[3] Beam combining prism .................................. 1-8
[4] Compression Prism........................................ 1-8
[5] Fine Adjustment Prism................................... 1-8
[6] Polygon mirror................................................ 1-8
[7] fθ lens ............................................................ 1-8
[8] Cylindrical Lenses.......................................... 1-9
[9] Index Sensor.................................................. 1-9
IMAGE FORMATION ............................................... 1-10
[1] Charging ...................................................... 1-10
[2] Exposure...................................................... 1-10
[3] Developing ................................................... 1-10
[4] Transfer........................................................ 1-10
[5] Separation.................................................... 1-11
[6] Cleaning....................................................... 1-11
[7] PCL .............................................................. 1-11
2. MAIN BODY
OUTLINE OF THE SYSTEM ...................................2-A-1
PRODUCT SPECIFICATIONS................................2-A-2
CENTER CROSS-SECTION...................................2-A-4
DRIVE SYSTEM DIAGRAM ....................................2-B-1
[1] Main Drive...................................................2-B-1
[2] Drum/Developing Drive...............................2-B-2
[3] Paper Feed Drive........................................2-B-3
[4] ADU Paper Feed/Conveyance Drive ..........2-B-4
[5] ADU Paper Exit/Conveyance Drive ............ 2-B-5
[6] 1000-Tray Paper Feed/Conveyance
Drive............................................................2-B-6
[7] 1500-Tray Paper Feed/Conveyance
Drive............................................................2-B-7
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