Code Description
C01 Battery or main board. Simulation 70 might clear
C30 Scan problem
C31 Scan problem
C32 Scan reverse problem
C40 Lens motor
C5 Lamp Problem
C61 Low fuser temperature. Heat lamp, thermofuse.
C62 Low fuser temperature
C63 Fuser thermistor
C64 High fuser temperature. Triac, pinched wire
C73 Shorted DV unit thermistor
PE Paper empty
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Service support for all copiers or printers model ...
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Technical informations contain:
1. Hardware schematic diagram !
2. Software for write/read the chips !
3. Dump memory collections !
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1. Hardware schematic diagram !
2. Software for write/read the chips !
3. Dump memory collections !
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Copyng Process
How Photocopiers Work
( Minolta Digital )
1. PC Drum
· The drum is an aluminum cylinder coated with photosensitive material on which an electrostatic
latent image is produced.
2. Drum Charging
· A scorotron charger employing a comb electrode generates a negative DC charged
layer on the surface of the PC Drum.
3. Photoelectric Conversion Section
· The Exposure Lamp directs light onto the original. The light reflected off the original is
directed and resized by the mirrors and lens so as to produce a reduced-size image on
the CCD Sensor.
4. HGB Board
· Converts an electric signal into a corresponding 8-bit digital image signal (A/D conversion),
makes various corrections, and outputs the results to the MFB Board.
5. MFB Board
· Compresses the image data received from the HGB Board, stores it, and uncompresses
it.
6. Laser Exposure
· The laser beam emitted from the LD (laser diode) strikes the surface of the PC Drum,
creating an electrostatic latent image.
7. Development
· Negatively charged toner adheres to the latent image on the PC Drum surface, creating
a visible image.
8. Paper Feed
· Feeds sheets of paper from the appropriate paper source.
9. Image Transfer
· An Image Transfer Roller is used. A positive charge applied to the roller causes the visible
image on the surface of the PC Drum to transfer onto the front side of the paper.
10. Paper Separation
· The PC Drum Separator Fingers remove paper from the surface of the PC Drum.
11. Cleaning
· The Cleaning Blade scrapes residual toner off the surface of the PC Drum and the toner
is recycled back to the Developing Unit.
12. Erase
· The PC Drum is exposed to light, which effectively removes any residual charge from
the drum surface.
13. Fusing
· Heat and pressure applied by the Right and Left Fusing Rollers fuse toner on the paper.
14. Paper Exit
· Feeds paper out of the copier.
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RESET SAMSUNG ML 1640:
Just short out pins 1 & 4 of the 93c66 chip.
This will reset the counter every time you power up the printer. If you remove the short, the counter
will resume counting but the service date information will not be the same.
Tested using the original initial cartridge.
I think if you want to use a replacement cartridge, you have to disconnect CN5 and short out CN9.
This way the toner will always be treated as the initial cartridge.