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bizhub C4000i/C3300i
2.4 CONTROL BLOCK DIAGRAM
2.5 IMAGE CREATION PROCESS
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[4]
[1]
Printer image processing
[2]
Photoconductor
[3]
Photoconductor charging
[4]
Laser exposure
[5]
Developing
[6]
1st transfer
[7]
2nd transfer
[8]
Separation
[9]
Transfer belt cleaning
[10] Fusing
[11] Photoconductor cleaning
[2]
[5]
[3]
[11]
The electric signal is converted to digital image signals. After going through some corrections, video
signals (C, M, Y, and K) are output to the printer image processing section.
The image of the original projected onto the surface of the photoconductor is changed to a
corresponding electrostatic latent image.
Supply DC (-) charge on the photoconductor.
Expose photoconductor to a laser beam to develop electrostatic latent image.
The toner, agitated and negatively charged in the developer mixing chamber, is attracted onto the
electrostatic latent image formed on the surface of the photoconductor. It is thereby changed to a
visible, developed image.
A DC positive voltage is applied to the backside of the transfer belt, thereby allowing the visible,
developed image on the surface of each of the photoconductors (Y, M, C, and K) to be transferred
onto the transfer belt.
A DC positive voltage is applied to the backside of the paper, thereby allowing the visible,
developed image on the surface of the transfer belt to be transferred onto the paper.
The paper, which has undergone the 2nd transfer process, is neutralized so that it can be properly
separated from the transfer belt by the paper separator claws.
Residual toner on the surface of the transfer belt is collected for cleaning by cleaning blade.
The visible toner image transferred onto the surface of the paper is melted by the heat of the fusing
roller and fixed to the paper by pressure.
The residual toner left on the surface of the photoconductor is scraped off.
C PRODUCT OUTLINE > 2. OVERALL COMPOSITION
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C-8
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