Konica Minolta Bizhub C351, Bizhub C450, Theory of Operation Manual

Theory of Operation Konica Minolta Bizhub C351, Bizhub C450;
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Bizhub C351/C450 Main Unit
OUTLINE
1. System configuration
2. Product specifications
3. Center cross section
4. Paper path
5. Image creation process

COMPOSITION/OPERATION
6. Overall composition
6.1 Timing chart at machine power up
6.2 Control block diagram
7. Scanner section (IR section)
7.1 Composition
7.2 Drive
7.3 Operation
7.3.1 Scan and Exposure Lamp control
7.3.2 Original Size Detection control
8. Write section (PH section)
8.1 Composition
8.2 Operation
8.2.1 Outline
8.2.2 Color Shift Correction System
9. Imaging Unit section (IU section)
9.1 Composition
9.2 Drive
9.3 Operation
9.3.1 IU Life control
10. Photo Conductor section
10.1 Composition
10.2 Drive
10.3 Operation
10.3.1 PC Drum Drive mechanism
10.3.2 PC Drum Phase control
10.3.3 PC Drum small amount rotation control
11. Charge Corona section
11.1 Operation
11.1.1 PC Drum Charge Corona ON/OFF control
11.1.2 Cleaning/Main Erase mechanism
12. Developing section
12.1 Composition
12.2 Drive
12.3 Operation
12.3.1 Developing Drive control
12.3.2 Developer flow
12.3.3 Developing bias
12.3.4 HMT (High grade Micro Toning) development
12.3.5 Developer Scattering Preventive Mechanism
12.3.6 TCR Sensor control
13. Toner Supply section
13.1 Composition
13.2 Drive
13.3 Operation
13.3.1 Toner Replenishing mechanism/control
13.3.2 Toner Near-Empty and Toner Empty detection control
13.3.3 Shutter mechanism
14. Transfer Corona section
14.1 Composition
14.1.1 1st Image Transfer section
14.1.2 2nd Image Transfer section
14.2 Drive
14.2.1 1st Image Transfer section
14.2.2 2nd Image Transfer section
14.3 Operation
14.3.1 Transfer Belt speed control
14.3.2 1st Image Transfer Roller mechanism
14.3.3 2nd Image Transfer Roller pressure mechanism
14.3.4 IDC Sensor Shutter mechanism
14.3.5 ATVC (Auto Transfer Voltage Control)
14.3.6 Transfer Belt cleaning
14.3.7 Transfer Belt Filming Cleaning Mechanism
14.3.8 2nd Image Transfer Roller cleaning
14.3.9 Charge neutralization and separation of paper
14.3.10 Detection of New Transfer Belt Unit
14.3.11 ACS control
15. Toner Collecting section
15.1 Composition
15.2 Drive
15.3 Operation
15.3.1 Toner collecting mechanism
15.3.2 Waste Toner Bottle-in-position detection
15.3.3 Waste Toner Near-Full/Full detection control
16. Paper feed section
16.1 Composition
16.1.1 Tray1
16.1.2 Tray2
16.2 Drive
16.2.1 Tray1
16.2.2 Tray2
16.3 Operation
16.3.1 Paper Take-up control (Tray1)
16.3.2 Tray1 double feed control
16.3.3 Deceleration control
16.3.4 Paper supply level detection control
16.3.5 Paper Near-Empty/Paper Empty detection
16.3.6 Tray1 paper type setting
16.3.7 Paper size detection control
16.3.8 Tray2 paper lifting motion control
16.3.9 Deceleration Control
17. Bypass section
17.1 Composition
17.2 Drive
17.3 Operation
17.3.1 Bypass Paper Take-up control
17.3.2 Paper Empty detection
17.3.3 Bypass Paper Lifting Motion Control
17.3.4 Paper size detection
18. Conveyance section
18.1 Composition
19. Registration Roller section
19.1 Composition
19.2 Drive
19.3 Operation
19.3.1 Registration Roller control
19.3.2 OHP detection
20. Fusing section
20.1 Composition
20.2 Drive
20.3 Operation
20.3.1 Fusing Roller drive control
20.3.2 Fusing Roller pressure/retraction mechanism
20.3.3 Fusing temperature control
20.3.4 Protection against abnormal conditions
20.3.5 Detection of a New Fusing Unit
20.3.6 PPM control
20.3.7 Wait Control While Using OHP or Thick Paper
20.3.8 WAIT control under low temperature environment
21. Paper exit section
21.1 Composition
21.2 Drive
22. Image stabilization control
22.1 Overview
22.2 Operation
22.2.1 IDC Sensor LED intensity control
22.2.2 Max. density control
22.2.3 Gamma correction control
22.3 Operation timing
22.4 Operation flow
23. Image processing
23.1 Scanner section image processing block diagram
23.2 Write section image processing block diagram 1
23.3 Write section image processing block diagram 2
24. Other control
24.1 Fan control
24.1.1 Construction
24.1.2 Operation
24.2 Parts Operated When the Power Switch and Auxiliary Power Button are turned ON
24.2.1 Parts operated when the Power Switch and Auxiliary Power Button are turned ON
24.3 Counter control
24.3.1 Construction

Number of pages: 286.