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Chapter 6 Principles of Operation
(2) Refresher and RTC
High voltage of the polarity (negative) reverse to that at the printing transfer is applied to the
IDT1, IDT2, and BTR. At this time, the drum surface is charged negatively by negative voltage
of the IDT1. The toner (positive polarity) remaining in the Refresher and RTC are move to the
drum electrically by transforming the Refresher and HTC to 0V. Then, in the same manner as
in the printing transfer, the residual toner is collected to the BTR surface by potential
difference between IDT1, IDT2, and BTR.
- Toner attached to the surface of BTR is urethane blade off with the BTR cleaner which is in contact
with the BTR and collected into the collection space in the Transfer Roller.
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IDT1
IDT1
HVPS
IDT2
HVPS
BTR
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HVPS
Urethane
blade
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RTC
Refresher
RTC
Refresher
RTC
Refresher
RTC
Refresher
Ida_Sec06_022FA
: Negative electric charge
: Toner
Drum (Y)
Drum (M)
Drum (C)
Drum (K)
IDT1 Voltage > IDT2 Voltage > BTR Voltage