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Image Fromation Seven Stages Process
Click:1820 Date:2015-06-23 20:24:00 Information Source:

Image Fromation Seven Stages Process

Image Formation Stage One: Conditioning(Charging)

Conditioning is to apply a uniform negative charge onto the rotating

 Organic Photo-Conductor (OPC) drum surface via corona wire assembly

or primary charge roller.

 

 

 

 

 

Image Formation Stage Two: Writing

In this stage, the laser beam with digital signal makes contact with the

OPC drum surface. The exposed area becomes conductive and discharges the

surface charge to ground, forming a electric latent image on the drum surface.

 

 

 

 

 

 

Image Formation Stage Three: Developing

Developing is  to  convert  the  electric  latent   image into  visible 

toner  image  at  the  developing station.Toner  is  attracted  onto the 

mag sleeve magnetically from the toner hopper,and charged via friction

between the mag sleeve and the docter blade.The doctor blade also evenly

meters the toner amount on the mag sleeve.An AC/DC  voltage  give  the 

toner a negative charge bias and transfers the toner to the OPC.

 

 

 

 

Image Formation Stage Four: Transferring

The drum with toned image rotates and contacts with the media that delivered

by the delivery system at the same rate. An opposite charge is placed on the 

backside of paper by the transfer roller. The charge attracts the toner from

the drum onto the media.

 

 

 

 

 

Image Formation Stage Five: Fusing

The media with toned image enters  into  the  fuser section.The fuser contains

two rollers, a heated  roller and pressure roller. Here  the toner  is  adhered 

to the media by heating  it up  and  pressing  it into  the media, forming a

fixing image.

 

 

Image Formation Stage Six: Cleaning

After transfer, there is a little amount toner left on the drum surface due

to static charge. The remains toner  is scrapped off by the wiper blade and

deposited into the waste bin.

 

 

 

 

 

Image Formation Stage Seven: Discharging

There is also a certain amount of  charges  on  the drum after

transfer. A charge from  PCR discharges the residual charges. 

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