Ricoh D014 Service Manual page 975

To transfer the images from drum to ITB:
The transfer power pack [A] supplies a positive charge (1 kV 24 to 30 muA) to the
image transfer roller terminals [B]
The four terminals charge the image transfer rollers [C]
charge to the back of the ITB [D].
The positively charged ITB pulls the negatively charged toner off the drums and onto
the ITB.
To transfer the images from ITB to paper:
The transfer power pack [A] supplies a negative charge to the ITB bias roller terminal
[E].
The terminal applies the negative charge to the ITB bias roller [F].
The high negative charge of the ITB bias roller is applied to the back of the ITB. This
repulses the low negative charge of the toner, forcing the images onto the paper.
The transfer power pack supplies the positive charge for image transfer to the ITB and the
negative charge for image transfer from the ITB to paper. A temperature/humidity sensor
under the used toner bottle motor controls the amount of the charge applied to the image
transfer and ITB bias rollers.
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D014/D015/D078/D079