HOME PAGE | < Previous | Contents | Next >
Image Transfer and Paper Transfer
7.10.3 IMAGE TRANSFER BELT CLEANING MECHANISM
Image transfer cleaning is performed by a cleaning blade (counter method).
Due to downsizing of machine width, the cleaning unit is installed on top of the image transfer unit. Therefore, to replace the cleaning unit, replacement must be performed after taking out the Image transfer unit and inverting it.
[A]: Toner collection coil [B]: Image transfer belt
[C]: Image transfer cleaning blade [D]: Toner collection coil
7.10.4 PAPER TRANSFER UNIT MECHANISM
Paper Transfer Mechanism
A bias is applied to the ITB drive roller to transfer the image on the image transfer belt to the paper (repulsion transfer). As there is no paper between the image transfer roller and toner image, this method is not easily affected by paper conditioning.
Also, toner adsorption on the paper is facilitated by the static charge eliminator of the paper transfer unit (no charge is applied).
PTR (Paper Transfer Roller) Drive
The rotation of the paper transfer roller follows that of the ITB drive roller.
PTR (Paper Transfer Roller) Contact and Separation
If the paper transfer roller is permanently in contact with the image transfer belt, toner on the Image transfer belt moves to the roller and soils the underside of the paper surface, therefore the Paper transfer roller is separated during process control or MUSIC control (it is not separated during real-time process control).
Separation of the paper transfer roller is achieved by transmitting the drive of the paper transfer contact motor via the ITB unit joint.
Detailed Descriptions
Detailed Descriptions
Detailed Descriptions