Minolta Di450 Service Manual page 18

1. CROSS SECTIONAL VIEW ............................................................................ M-1
2. COPY PROCESS ............................................................................................ M-2
3. DRIVE SYSTEM .............................................................................................. M-4
4. SEQUENTIAL EXPLANATION ........................................................................ M-5
5. IMAGE STABILIZATION SYSTEM .................................................................. M-6
5-1. AIDC Sensor ............................................................................................ M-7
5-2. Image Stabilization System Control ......................................................... M-8
6. PC DRUM SECTION ....................................................................................... M-9
6-1. PC Drum Drive Mechanism ..................................................................... M-9
6-2. Grounding of the PC Drum ...................................................................... M-10
7. PC DRUM CHARGING SECTION ................................................................... M-11
8. IMAGE READING SECTION ........................................................................... M-12
8-1. Exposure Components Section ............................................................... M-13
8-2. Exposure Lamp Control ........................................................................... M-14
8-3. Image Processing Process ...................................................................... M-16
8-4. Image Density Control ............................................................................. M-18
(1) Auto Exposure Control .................................................................... M-18
(2) Manual Exposure Control ................................................................ M-21
8-5. Scanner and Mirrors Carriage Movement Mechanism ............................ M-23
(1) Scanner Movement Mechanism ...................................................... M-23
(2) 2nd/3rd Mirrors Carriage Movement Mechanism ............................ M-23
8-6. Scanner Motor Drive Control ................................................................... M-24
9. MEMORY SECTION ........................................................................................ M-25
9-1. Image Processing Process ...................................................................... M-25
10. Original Size Detecting Section ....................................................................... M-26
10-1.Original Size Detecting Operation ........................................................... M-26
10-2.Original Size Detecting Sensors Locations ............................................. M-27
10-3.Original Size Detection ............................................................................ M-28
10-4.Original Size Detection Timing ................................................................ M-29
11. PH SECTION ................................................................................................... M-30
11-1.Image Processing Process ...................................................................... M-31
11-2.Laser Emission Timing (SOS Signal) ...................................................... M-33
12. DEVELOPING UNIT SECTION ....................................................................... M-35
12-1.Developing Unit Drive Mechanism .......................................................... M-36
12-2.Sleeve/Magnet Roller .............................................................................. M-37
12-3.Doctor Blade ............................................................................................ M-37
12-4.Developing Bias ....................................................................................... M-38
12-5.ATDC Sensor .......................................................................................... M-39
(1) ATDC Sensor Automatic Adjustment .............................................. M-39
12-6.Toner Replenishing Control ..................................................................... M-40
12-7.Toner Supply Hole Covering/Uncovering Mechanism ............................. M-40
12-8.Toner Bottle Home Position Detection Mechanism ................................. M-41
12-9.Toner Bottle Vibration Mechanism .......................................................... M-41
12-10.Main Hopper Toner Replenishing Mechanism ...................................... M-42
12-11.Main Hopper Locking Mechanism ......................................................... M-42
12-12.Sub Hopper Toner Replenishing Mechanism ........................................ M-43
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