Riso GR 3770 - Page 2

GR3770- 1 -
CONTENTS
1. MACHINE SUMMARY
1. Preface ....................................................................................................................................................... 1-1
CAUTION .................................................................................................................................................... 1-2
WARNING ................................................................................................................................................... 1-3
NOTICE ...................................................................................................................................................... 1-4
2. Features of the Risograph GR3770 ........................................................................................................... 1-5
3. Specifications ............................................................................................................................................. 1-6
4. Product Compatibility ................................................................................................................................. 1-7
2. DRUM SECTION
[ Theory of Operation ]
1. Drum Insertion Error Preventive System .................................................................................................... 2-1
2 Ink Bottle Detecting System ........................................................................................................................ 2-2
3. Ink Supply System ...................................................................................................................................... 2-3
[ Removal ]
1. Ink Bottle Set SW Assy. ............................................................................................................................... 2-4
3. FLAT BED IMAGE SCANNING SECTION
[ Theory of Operation ]
1. Scanner Table Setting System ................................................................................................................... 3-1
2. Stop Position of Image Scanner ................................................................................................................. 3-2
3. Image Scanner Position Detecting System ................................................................................................ 3-3
4. Flat Bed Original Set Confirming System ................................................................................................... 3-6
5. Flat Bed Auto Scanning Contrast Adjustment System ............................................................................... 3-7
6. Flat Bed Image Scanning System .............................................................................................................. 3-8
[ Removal ]
1. Stage Glass ................................................................................................................................................ 3-10
2. Image Scanner Unit .................................................................................................................................... 3-11
3. Flat Bed Original Detection Sensor and Image Flexible Wire ................................................................... 3-12
4. Flat Bed Read Pulse Motor Unit ................................................................................................................. 3-13
5. Original Stopper and Shading Glass ......................................................................................................... 3-14
4. MASTER MAKING SECTION
[ Removal ]
1. Thermal Print Head .................................................................................................................................... 4-1
[ Adjustment ]
1. Thermal Power of Thermal Print Head ....................................................................................................... 4-3
5. MASTER CLAMP & LOADING SECTION
[ Theory of Operation ]
1. Clamp Unit Home Positioning System ....................................................................................................... 5-1
2. Clamp Plate Master Release System ........................................................................................................ 5-2
3. Clamp Plate Master Clamp System ........................................................................................................... 5-4