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US 2015/0030349 A1Published application
Cleaning device and image forming apparatus
AssigneeKonica Minolta, Inc.
InventorSatoru OSAWA
Life of this patent
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Abstract
A cleaning device includes a first cleaning section and a second cleaning section. The first cleaning section applies, to a first collecting roller, a voltage for electrostatically attaching toner oppositely charged at a first foamed roller to the first collecting roller from the first foamed roller. The second cleaning section applies, to a second collecting roller, a voltage for electrostatically attaching toner oppositely charged at a second foamed roller to the second collecting roller from the second foamed roller.
Claims12
A cleaning device comprising a first cleaning section and a second cleaning section,
- the first cleaning section including:
- a first foamed roller disposed in such a manner that the first foamed roller is rotatable while making contact with a transfer belt, the first foamed roller being configured to remove toner of a first polarity remaining on the transfer belt;
- a first collecting roller disposed in such a manner that the first collecting roller is rotatable while making contact with the first foamed roller, the first collecting roller being configured to collect toner attached to the first foamed roller;
- and
- a first voltage applying section configured to apply, to the first foamed roller, a voltage for electrostatically attaching the toner of the first polarity existing on the transfer belt to the first foamed roller and for oppositely charging the toner, and to apply, to the first collecting roller, a voltage for electrostatically attaching the toner oppositely charged at the first foamed roller to the first collecting roller from the first foamed roller;
- the second cleaning section including:
- a second foamed roller disposed on a downstream side of the first foamed roller in a travelling direction of the transfer belt in such a manner that the second foamed roller is rotatable while making contact with the transfer belt, the second foamed roller being configured to remove toner of a second polarity remaining on the transfer belt, the second polarity being opposite to the first polarity;
- a second collecting roller disposed in such a manner that the second collecting roller is rotatable while making contact with the second foamed roller, the second collecting roller being configured to collect toner attached to the second foamed roller;
- and
- a second voltage applying section configured to apply, to the second foamed roller, a voltage for electrostatically attaching the toner of the second polarity existing on the transfer belt to the second foamed roller and for oppositely charging the toner, and to apply, to the second collecting roller, a voltage for electrostatically attaching the toner oppositely charged at the second foamed roller to the second collecting roller from the second foamed roller.
7 more elements
An image forming apparatus comprising a first cleaning section and a second cleaning section,
- the first cleaning section including:
- a first foamed roller disposed in such a manner that the first foamed roller is rotatable while making contact with a transfer belt, the first foamed roller being configured to remove toner of a first polarity remaining on the transfer belt;
- a first collecting roller disposed in such a manner that the first collecting roller is rotatable while making contact with the first foamed roller, the first collecting roller being configured to collect toner attached to the first foamed roller;
- and
- a first voltage applying section configured to apply, to the first foamed roller, a voltage for electrostatically attaching the toner of the first polarity existing on the transfer belt to the first foamed roller and for oppositely charging the toner, and to apply, to the first collecting roller, a voltage for electrostatically attaching the toner oppositely charged at the first foamed roller to the first collecting roller from the first foamed roller;
- the second cleaning section including:
- a second foamed roller disposed on a downstream side of the first foamed roller in a travelling direction of the transfer belt in such a manner that the second foamed roller is rotatable while making contact with the transfer belt, the second foamed roller being configured to remove toner of a second polarity remaining on the transfer belt, the second polarity being opposite to the first polarity;
- a second collecting roller disposed in such a manner that the second collecting roller is rotatable while making contact with the second foamed roller, the second collecting roller being configured to collect toner attached to the second foamed roller;
- and
- a second voltage applying section configured to apply, to the second foamed roller, a voltage for electrostatically attaching the toner of the second polarity existing on the transfer belt to the second foamed roller and for oppositely charging the toner, and to apply, to the second collecting roller, a voltage for electrostatically attaching the toner oppositely charged at the second foamed roller to the second collecting roller from the second foamed roller.
7 more elements
Dependencies are inferred from the claim text.