Table Of Contents - Canon imageFORMULA DR-C125 Service Manual

CHAPTER 1
GENERAL DESCRIPTION
I. PRODUCT OUTLINE .............................. 1-1
1. Features.............................................. 1-1
2. Main Specifications ............................. 1-2
3. Precautions ......................................... 1-5
II. NAME OF PARTS.................................... 1-6
1. Name of Parts ..................................... 1-6
III. USER OPERATION................................. 1-7
1. Placing Documents ............................. 1-7
2. Scanning ............................................. 1-9
3. Clearing Paper Jams ........................ 1-11
CHAPTER 2
FUNCTIONS & OPERATION
I. OUTLINE ................................................. 2-1
1. Main Configuration.............................. 2-1
2. Feed Path ........................................... 2-2
3. Motor Drive ......................................... 2-3
4. Electrical Circuits ................................ 2-4
5. Timing Chart........................................ 2-5
II. READING SYSTEM................................. 2-6
1. Reading Unit ....................................... 2-6
2. Shading............................................... 2-7
III. FEED SYSTEM ....................................... 2-8
1. Feeding Mechanism............................ 2-8
2. Feed Error Detection ........................ 2-11
IV. CONTROL SYSTEM ............................. 2-13
1. Control Circuits ................................. 2-13
2. Image Processing ............................. 2-15
V. POWER SUPPLY .................................. 2-17
1. Power Supply.................................... 2-17
VI. LAYOUT OF ELECTRICAL COMPONENTS. 2-18
1. Sensors/Motors................................. 2-18
VII. PARTS LAYOUT ON EACH PCB .......... 2-19
1. Control PCB ...................................... 2-19
2. Front Unit PCB.................................. 2-20
CONTENTS
COPYRIGHT © CANON ELECTRONICS INC. 2011
CHAPTER 3
DISASSEMBLY &
REASSEMBLY
I. EXTERNAL PARTS .................................3-1
1. Left Cover............................................3-1
2. Right Cover .........................................3-2
3. Rear Cover..........................................3-3
4. Document Feed Tray ..........................3-3
5. Front Unit ............................................3-4
II. FRONT UNIT ...........................................3-5
1. Eject Pocket ........................................3-5
2. Front Cover .........................................3-5
3. Front Unit PCB....................................3-6
4. Feed Roller Drive Shaft.......................3-7
5. Follower Roller ....................................3-7
III. BASE UNIT ..............................................3-8
1. Control PCB ........................................3-8
2. Feed Motor..........................................3-8
3. Main Motor ..........................................3-9
4. Drive Roller .........................................3-9
5. Retard Roller Drive Shaft .................. 3-11
6. Document Pressure Plate ................. 3-11
7. Flapper ..............................................3-12
IV. READING UNIT .....................................3-13
1. Reading Unit (Front) .........................3-13
2. Reading Holder (Front) .....................3-14
3. Reading Unit (Rear) ..........................3-14
4. Reading Holder (Rear)......................3-15
CHAPTER 4
INSTALLATION &
MAINTENANCE
I. INSTALLATION........................................4-1
1. System Requirement ..........................4-1
2. Checking the Accessories...................4-1
3. Removing the Packing Material ..........4-2
4. Installing the Software.........................4-2
5. Connecting to a Computer ..................4-3
CANON DR-C125 FIRST EDITION