Konica Minolta CF5001 - Manual (Page 51)

IMAGE CREATION PROCESS CF5001 Ver.1.0 Sep. 2003
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I OUTLINE
6.10 Transfer belt cleaning (Sub step 3)
A transfer belt that has completed the 2nd transfer has a residual amount of toner that is left from the trans-
fer process. The process to remove toner is referred to as a transfer belt cleaning.
A transfer belt cleaning is made by scraping toner adhered to the drum surface with the edge of a plate
called a blade that is made of urethane rubber.
6.11 2nd transfer roller /L cleaning (Sub step 4)
Residual toner on the transfer belt is in direct contact with the 2nd transfer roller /L. As a result, the 2nd
transfer roller /L may be coated with toner.
So, the 2nd transfer roller /U is applied with a positive and a negative high DC bias voltage alternately to
move toner on the 2nd transfer roller /L to the transfer belt side. The toner on the transfer belt that has
been moved is cleaned by the transfer belt cleaning mentioned above.
[1] Transfer belt [3] Cleaning blade
[2] Residual toner
[1] Transfer belt [4] DC bias (positive) applied
[2] 2nd transfer roller /L [5] DC bias (negative) applied
[3] 2nd transfer roller /U
8050ma1026
[1] [3]
[2]
[4] [5]
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[3]
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