Service Manuals, User Guides, Schematic Diagrams or docs for : Minolta Copiers Di250 orig_man General Mechanical
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FrameMaker Ver.5.5E(PC) Di250 GENERAL, MECHANICAL/ELECTRICAL
99.01.14
Di250
MECHANICAL/
ELECTRICAL
FrameMaker Ver.5.5E(PC) Di250 GENERAL, MECHANICAL/ELECTRICAL
99.01.14
CONTENTS
1. CROSS-SECTIONAL VIEW ............................................................................ M-1
2. COPYING PROCESS ...................................................................................... M-2
3. DRIVE SYSTEM .............................................................................................. M-4
4. OPERATING SEQUENCE .............................................................................. M-5
5. CPU OVERRUN MONITOR FUNCTION ......................................................... M-8
6. IMAGE STABILIZATION SYSTEM .................................................................. M-9
7. IMAGING CARTRIDGE (I/C) ........................................................................... M-10
7-1. I/C Drive Mechanism ............................................................................... M-11
7-2. Identification and Life of I/C ..................................................................... M-11
8. PC DRUM ........................................................................................................ M-12
9. DRUM CHARGING .......................................................................................... M-13
10. ERASE LAMP .................................................................................................. M-14
11. IR SECTION .................................................................................................... M-15
11-1. Exposure Section: Construction and Function ....................................... M-16
11-2. Image Processing Flow .......................................................................... M-17
11-3. Original Size Detection ........................................................................... M-18
11-4. Original Size Detection Timing ............................................................... M-20
11-5. Scanner and 2nd/3rd Mirrors Carriage Moving Mechanism ................... M-21
12. PH SECTION ................................................................................................... M-22
12-1. PH Components ..................................................................................... M-23
12-2. Laser Emission Timing (SOS Signal) ..................................................... M-24
13. DEVELOPING UNIT ........................................................................................ M-25
13-1. Sleeve/Magnet Roller ............................................................................. M-26
13-2. Developing Bias ...................................................................................... M-27
13-3. ATDC Sensor ......................................................................................... M-28
13-4. Sub Hopper Toner Replenishing Mechanism ......................................... M-29
13-5. Sub Hopper Toner Empty Detecting Mechanism ................................... M-30
13-6. Main Hopper Toner Replenishing Mechanism ....................................... M-31
13-7. I/C Cooling Fan Motor ............................................................................ M-32
13-8. Ozone Fan Motor .................................................................................... M-32
14. PAPER TAKE-UP/FEED SECTION ................................................................ M-33
14-1. MP Cassette Paper Lifting Plate ............................................................. M-33
14-2. MP Cassette-in-Position Detection ......................................................... M-34
14-3. MP Cassette Paper Empty Detection ..................................................... M-35
14-4. MP Cassette Paper Size Detection ........................................................ M-36
14-5. Paper Take-Up Mechanism .................................................................... M-37
14-6. Manual Bypass Tray ............................................................................... M-37
14-7. Paper Take-Up Retry Mechanism .......................................................... M-38
15. SYNCHRONIZING ROLLERS ......................................................................... M-39
15-1. Synchronizing Roller Drive Mechanism/Control ..................................... M-39
15-2. Paper Dust Remover .............................................................................. M-40
16. IMAGE TRANSFER AND PAPER SEPARATION ........................................... M-41
17. PC DRUM PAPER SEPARATOR FINGERS ................................................... M-42
18. PC DRUM CLEANING ..................................................................................... M-43
i
FrameMaker Ver.5.5E(PC) Di250 GENERAL, MECHANICAL/ELECTRICAL
99.01.14
19. FUSING UNIT .................................................................................................. M-44
19-1. Drive Mechanism .................................................................................... M-45
19-2. Fusing Rollers Pressure Mechanism ...................................................... M-45
19-3. Fusing Temperature Control ................................................................... M-46
19-4. CPM Control ........................................................................................... M-47
20. PAPER EXIT UNIT .......................................................................................... M-48
21. FUSING COOLING FAN MOTOR ................................................................... M-49
22. POWER UNIT COOLING FAN MOTOR .......................................................... M-50
ii
FrameMaker Ver.5.5E(PC) Di250 GENERAL, MECHANICAL/ELECTRICAL
99.01.14
1170SBM0100A
1 CROSS-SECTIONAL VIEW
1 2 3 4 5 6 7 8 9
10
23
11
12
13
14
15
16
17
18
19
1171M037AB
22 21 20
1. 2nd Mirror 13. Fusing Cooling Fan Motor (M3)
2. 3rd Mirror 14. Image Transfer Roller
3. Exposure Lamp 15. Synchronizing Roller
4. 1st Mirror 16. Synchronizing Roller Sensor (PC2)
5. Lens 17. Manual Feed Paper Take-Up Sensor
6. CCD Unit (PC8)
7. Paper Exit Roller 18. Manual Feed Paper Take-Up Roll
8. Fusing Roller Thermostat (TS1) 19. Vertical Transport Roller
9. Fusing Roller Heater Lamp (H1) 20. Paper Separator Pad
10. Paper Exit Sensor (PC3) 21. Paper Take-Up Roll
11. Right Fusing Roller 22. Imaging Cartridge (I/C)
12. Left Fusing Roller 23. PH Unit
M-1
FrameMaker Ver.5.5E(PC) Di250 GENERAL, MECHANICAL/ELECTRICAL
99.01.14
1170SBM0200A
2 COPYING PROCESS
14. Paper Exit 13. Fusing
3. Photoelectric Conversion
Section 11. Cleaning
12. Erase
4. HGB Board
2. Drum Charging
10. Paper Separation
5. MFB Board 6. Laser Exposure 1. PC Drum
9. Image Transfer
7. Development
8. Paper Feed
8. Paper Feed
1. PC Drum
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