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Konica Minolta Magicolor 4750EN / 4750DN Theory of Operation
Theory of Operation Service Manual KONICA MINOLTA MAGICOLOR 4750EN / 4750 DN;
This service manual, is the full KONICA MINOLTA MAGICOLOR 4750EN / 4750 DN Service Repair Manual.
This manual, KONICA MINOLTA MAGICOLOR 4750EN / 4750 DN, is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your KONICA MINOLTA MAGICOLOR 4750EN / 4750 DN copier.
You can print, zoom or read any diagram, picture or page from this Theory of Operation Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of KONICA MINOLTA MAGICOLOR 4750EN / 4750 DN photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:
MAGICOLOR 4750EN/4750DN MAIN BODY
OUTLINE
1. SYSTEM CONFIGURATION
2. PRODUCT SPECIFICATIONS
3. SECTION CONFIGURATION
4. MEDIA PATH
COMPOSITION/OPERATION
5. OVERALL COMPOSITION
5.1 CONTROL BLOCK DIAGRAM
5.2 IMAGE CREATION PROCESS
5.3 TIMING CHART AT MAIN BODY POWER ON
6. INTERFACE SECTION
6.1 COMPOSITION
7. WRITE SECTION
7.1 COMPOSITION
7.2 OPERATION
7.2.1 OVERVIEW
7.2.2 LASER EXPOSURE PROCESS
7.2.3 LASER EMISSION TIMING
7.2.4 LASER EMISSION AREA
7.2.5 MAIN SCAN MAGNIFICATION ADJUSTMENT
7.2.6 IMAGE PROCESSING
8. TONER SUPPLY SECTION
8.1 COMPOSITION
8.2 DRIVE
8.3 OPERATION
8.3.1 TONER COLLECTING PORT SHUTTER MECHANISM
8.3.2 TONER REPLENISHING MECHANISM
8.3.3 TONER REPLENISHING CONTROL
8.3.4 TONER CARTRIDGE DETECTION
8.3.5 TONER CONSUMPTION RATE DETECTION
8.3.6 TONER LIFE DETECTION
8.3.7 TONER NEAR-EMPTY CONDITION DETECTION
8.3.8 TONER EMPTY CONDITION DETECTION
8.3.9 MONOCHROME PRINTS
9. IMAGING UNIT SECTION (OVERALL COMPOSITION)
9.1 COMPOSITION
9.2 OPERATION
9.2.1 IMAGING UNIT DETECTION
9.2.2 IMAGING UNIT CONSUMPTION RATE DETECTION
9.2.3 IMAGING UNIT LIFE DETECTION
10. IMAGING UNIT SECTION (PHOTO CONDUCTOR)
10.1 COMPOSITION
10.2 DRIVE
10.3 OPERATION
10.3.1 PHOTO CONDUCTOR DRIVE MECHANISM
11. IMAGING UNIT SECTION (CHARGE CORONA)
11.1 COMPOSITION
11.2 DRIVE
11.3 OPERATION
11.3.1 CHARGE ROLLER
11.3.2 CLEANING ROLLER
12. IMAGING UNIT SECTION (DEVELOPING)
12.1 COMPOSITION
12.2 DRIVE
12.3 OPERATION
12.3.1 TONER FLOW
12.3.2 DEVELOPING SYSTEM
12.3.3 CLEANING MECHANISM
12.3.4 TONER COLLECTING PORT SHUTTER MECHANISM
12.3.5 IMAGE PROCESSING
13. TRANSFER SECTION (1ST TRANSFER)
13.1 COMPOSITION
13.2 DRIVE
13.3 OPERATION
13.3.1 1ST TRANSFER OUTPUT CONTROL
13.3.2 1ST TRANSFER ROLLER PRESSURE/RETRACTION CONTROL
13.3.3 TRANSFER BELT CLEANING MECHANISM
13.3.4 1ST TRANSFER BELT BACKWARD ROTATION CONTROL
13.3.5 TONER COLLECTING PORT SHUTTER MECHANISM
14. TRANSFER SECTION (2ND TRANSFER)
14.1 COMPOSITION
14.2 DRIVE
14.3 OPERATION
14.3.1 2ND TRANSFER ROLLER PRESSURE MECHANISM
14.3.2 2ND TRANSFER VOLTAGE CONTROL
14.3.3 2ND TRANSFER VOLTAGE SETTING CONTROL (ATVC: AUTO TRANSFER VOLTAGE CONTROL)
14.3.4 2ND TRANSFER ROLLER CLEANING CONTROL
15. WASTE TONER COLLECTING SECTION
15.1 COMPOSITION
15.2 DRIVE
15.3 OPERATION
15.3.1 TONER FLOW AT THE IMAGING UNIT SECTION
15.3.2 WASTE TONER FLOW AT TRANSFER BELT UNIT SECTION/2ND TRANSFER SECTION
15.3.3 TONER COLLECTING PORT SHUTTER MECHANISM
15.3.4 WASTE TONER BOTTLE-IN-POSITION DETECTION MECHANISM
15.3.5 WASTE TONER FLOW IN THE WASTE TONER BOTTLE
15.3.6 WASTE TONER NEAR-FULL CONDITION DETECTION CONTROL
15.3.7 WASTE TONER FULL CONDITION DETECTION CONTROL
16. MEDIA FEED SECTION (TRAY 1)
16.1 COMPOSITION
16.2 DRIVE
16.3 OPERATION
16.3.1 MEDIA LIFT PLATE MECHANISM
16.3.2 MEDIA SEPARATION MECHANISM
16.3.3 MEDIA FEED CONTROL
16.3.4 MEDIA EMPTY CONDITION DETECTION CONTROL
17. MEDIA FEED SECTION (TRAY 2)
17.1 COMPOSITION
17.2 DRIVE
17.3 OPERATION
17.3.1 MEDIA LIFT PLATE MECHANISM
17.3.2 MEDIA SEPARATION MECHANISM
17.3.3 MEDIA FEED CONTROL
17.3.4 MEDIA EMPTY CONDITION DETECTION CONTROL
17.3.5 TRAY OPEN/CLOSE DETECTION CONTROL
17.3.6 MEDIA MISFEED DETECTION CONTROL
18. CONVEYANCE SECTION (IDC SENSOR)
18.1 COMPOSITION
18.1.1 DRIVE
18.2 OPERATION
18.2.1 TONER DENSITY DETECTION CONTROL
18.2.2 IDC SENSOR CALIBRATION CONTROL
18.2.3 IDC SENSOR COVER OPEN/CLOSE MECHANISM
18.2.4 IMAGE PROCESSING
19. CONVEYANCE SECTION (REGISTRATION ROLLER)
19.1 COMPOSITION
19.2 DRIVE
19.3 OPERATION
19.3.1 CONVEYANCE SPEED CONTROL
19.3.2 REGISTRATION ROLLER CONTROL
19.3.3 CONTROL OF LOOP FORMED BEFORE REGISTRATION ROLLER
19.3.4 MEDIA NEUTRALIZATION
19.3.5 MEDIA SIZE ERROR DETECTION CONTROL
19.3.6 TEMPERATURE/HUMIDITY SENSOR
20. FUSING SECTION
20.1 COMPOSITION
20.2 DRIVE
20.3 OPERATION
20.3.1 FUSING ROLLER DRIVE CONTROL
20.3.2 FUSING TEMPERATURE CONTROL
20.3.3 PROTECTION FROM ABNORMAL TEMPERATURES
20.3.4 FUSING SPEED CONTROL
20.3.5 FUSER UNIT NEW ARTICLE DETECTION
21. DUPLEX SECTION (ONLY FOR MAGICOLOR 4750DN)
21.1 COMPOSITION
21.2 DRIVE
21.3 OPERATION
21.3.1 MEDIA TRANSPORT CONTROL
21.3.2 DUPLEX PRINT CONTROL
22. MEDIA EXIT SECTION
22.1 COMPOSITION
22.2 DRIVE
22.3 OPERATION
22.3.1 TRANSPORT CONTROL (MAGICOLOR 4750EN)
22.3.2 TRANSPORT CONTROL (MAGICOLOR 4750DN)
23. IMAGE STABILIZATION CONTROL
23.1 OUTLINE
23.2 OPERATION SEQUENCE
23.2.1 SIMPLIFIED CORRECTION CONTROL
23.2.2 COMPLETE CORRECTION CONTROL
23.2.3 INDIVIDUAL REGISTRATION CONTROL
23.3 CONTROL DESCRIPTIONS
23.3.1 SIMPLIFIED CORRECTION CONTROL
23.3.2 COMPLETE CORRECTION CONTROL
23.3.3 INDIVIDUAL REGISTRATION CONTROL
23.4 EXECUTION TIMING
23.4.1 PREDRIVE OPERATION
23.4.2 DURING AND AFTER A PRINT CYCLE
23.4.3 WHEN THE AIDC MODE IS SELECTED
24. POWER SUPPLY SECTION
24.1 PARTS ENERGIZED WHEN THE MAIN POWER SWITCH IS TURNED ON
24.1.1 CONFIGURATION
24.1.2 OPERATION
25. FAN CONTROL
25.1 CONFIGURATION
25.2 OPERATION
25.2.1 FUNCTION
25.2.2 FAN CONTROL
LOWER FEEDER UNIT
OUTLINE
1. PRODUCT SPECIFICATIONS
COMPOSITION/OPERATION
2. OVERALL COMPOSITION
3. DRIVE
4. OPERATIONS
4.1 MEDIA FEED CONTROL
4.1.1 MEDIA LIFT PLATE MECHANISM
4.1.2 FEED ROLLER/VERTICAL TRANSPORT ROLLER CONTROL
4.1.3 MEDIA SEPARATION MECHANISM
4.1.4 MEDIA DETECTION MECHANISM
4.1.5 MEDIA EMPTY CONDITION DETECTION CONTROL
4.1.6 EDGE GUIDE PLATE
4.1.7 TRAILING EDGE GUIDE PLATE
4.1.8 MEDIA SIZE DETECTION CONTROL
4.1.9 MEDIA REFERENCE POSITION ADJUSTMENT MECHANISM
4.1.10 MEDIA MISFEED DETECTION CONTROL
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