
Chapter 2
2-1
2.1 Construction
2.1.1 Function Configuration
0020-2566
i-SENSYS MF4300dn / i-SENSYS MF4350d / i-SENSYS MF4380dn / i-SENSYS MF4310/4318 / i-SENSYS MF4320d / i-SENSYS MF4330d / i-SENSYS
MF4340d / i-SENSYS D450d / i-SENSYS MF4370dn
The functions of this host machine are mainly composed of the 7 blocks: System
Control System, Scanning Control System, Printer Control System, Laser Scanner System, Image Formation System, Fixing System, Pickup/Feeding System.
Below is the block diagram.
F-2-1
2.2 Basic Sequence
2.2.1 Basic Operation Sequence
0020-2567
i-SENSYS MF4300dn / i-SENSYS MF4350d / i-SENSYS MF4380dn / i-SENSYS MF4310/4318 / i-SENSYS MF4320d / i-SENSYS MF4330d / i-SENSYS
MF4340d / i-SENSYS D450d / i-SENSYS MF4370dn
The operations of this host machine are controlled by CPUs of the SCNT PCB within the Reader Controller System and the DCNT PCB within the Engine Control
System. The table below shows the purpose of each interval and the outline of the operations of reader unit and the engine from turnon of the power supply to stop
of each motor after printing.
T-2-1
interval name
definition of interval
purpose
remarks
WAIT (wait)
Interval between turnon of the
power supply and the end of the
initial drive
To clear the drum surface potential
and to execute the cleaning of
transfer charging roller
Presence/absence of cartridge is detected during this interval.
STBY (standby)
Interval between the end of WAIT
or LSTR and input of print
command from SCNT PCB, or
interval between the end of LSTR
and turnoff of power supply
To make the host machine ready for
printing
INTR (initial rotation)
Interval between the input of print
command from SCNT PCB and
turnon of the Cassette pickup
solenoid
To stabilize the photosensitive drum
as a preparation for printing
Also to clean the transfer charging
roller
PRINT (print)
Interval between the end of initial
rotation and turnoff of the primary
high-voltage output
To form an image onto the
photosensitive drum based on the
video signal input from the SCNT
PCB and to transfer the toner image
onto media
LSTR (last rotation)
Interval between turnoff of the
primary high-voltage output and
stop of the main motor
To fully deliver the final sheet
printed
Also to clean the transfer charging
roller
On input of print command from the SCNT PCB, host machine
enters INTR immediately after LSTR. However, depending on the
conditions shown below, the host machine may not start INTR
immediately.
-media size
-temperature of the fixing assembly
System Control
System
Laser / Scanner System
Printer Control
System
Pickup / Feeding System
Fixing System
Image Formation System
Scanning Control System
Содержание i-SENSYS D450d
Страница 1: ...Aug 22 2008 Service Manual MF4300 Series ...
Страница 2: ......
Страница 6: ......
Страница 12: ...Contents 15 1 1 Solvents Lubricants Table 15 1 ...
Страница 13: ...Chapter 1 Introduction ...
Страница 14: ......
Страница 16: ......
Страница 32: ......
Страница 33: ...Chapter 2 Basic Operation ...
Страница 34: ......
Страница 36: ......
Страница 38: ......
Страница 39: ...Chapter 3 Original Exposure System ...
Страница 40: ......
Страница 42: ......
Страница 44: ...Chapter 3 3 2 F 3 1 ...
Страница 49: ...Chapter 4 Original Feeding System ...
Страница 50: ......
Страница 52: ......
Страница 55: ...Chapter 4 4 3 F 4 6 ...
Страница 66: ......
Страница 67: ...Chapter 5 Laser Exposure ...
Страница 68: ......
Страница 70: ......
Страница 73: ...Chapter 5 5 3 ...
Страница 76: ......
Страница 77: ...Chapter 6 Image Formation ...
Страница 78: ......
Страница 80: ......
Страница 85: ...Chapter 7 Pickup and Feed System ...
Страница 86: ......
Страница 88: ......
Страница 96: ......
Страница 97: ...Chapter 8 Fixing System ...
Страница 98: ......
Страница 100: ......
Страница 102: ...Chapter 8 8 2 F 8 2 1 Pressure roller 2 Fixing film H1 Fixing heater TH1 Thermistor TP1 Temperature fuse 1 TP1 TH1 H1 2 ...
Страница 108: ......
Страница 109: ...Chapter 9 External and Controls ...
Страница 110: ......
Страница 112: ......
Страница 121: ...Chapter 10 Maintenance and Inspection ...
Страница 122: ......
Страница 124: ......
Страница 128: ......
Страница 129: ...Chapter 11 Measurement and Adjustments ...
Страница 130: ......
Страница 132: ......
Страница 135: ...Chapter 12 Correcting Faulty Images ...
Страница 136: ......
Страница 138: ......
Страница 144: ...Chapter 12 12 6 2 DCNT PCB 3 Power supply PCB 4 High voltage PCB SW301 Interlock switch ...
Страница 145: ...Chapter 13 Error Code ...
Страница 146: ......
Страница 147: ...Contents Contents 13 1 Error Code 13 1 13 1 1 Error Code Outline 13 1 13 1 2 Error Code 13 1 ...
Страница 148: ......
Страница 153: ...Chapter 14 Service Mode ...
Страница 154: ......
Страница 156: ...Contents 14 3 2 3 Sensor test 14 16 14 3 2 4 Key test 14 16 ...
Страница 174: ......
Страница 175: ...Chapter 15 Service Tools ...
Страница 176: ......
Страница 177: ...Contents Contents 15 1 Service Tools 15 1 15 1 1 Solvents Lubricants Table 15 1 ...
Страница 178: ......
Страница 180: ......
Страница 181: ...Aug 22 2008 ...
Страница 182: ......