Patent EP0317242A2 successfully refreshed from Google Patents.
EP0317242A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cleaning device for conductive magnetic toner and image recording apparatus using same
Assignee: Canon Inc
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Filing: 1988-11-14
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Granted: —
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Expires: 2008-11-14
Abstract
Abstract The cleaning device (13) for removing the toner image formed by conductive and magnetic toner from the recording medium (1). The cleaning device includes a rubbing member made of electrically conductive brush (13b) of soft material or a conductive resin blade made of soft material to clean the recording medium. The cleaning device is disposed upstream of the recording position. The damage of the recording material by the cleaning is prevented according to the present invention.
Inventors
- 👤 Toshihiko Ochiai
- 👤 Yujiro Ando
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 22:23
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/0011; G03G21/0017; G03G21/0035
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
96 words
A cleaning device for removing toner from a recording medium after a toner image is formed on the recording medium by application of a voltage between a recording electrode and the recording medium with the toner which is electrically conductive and magnetic supplied in the space between the recording electrode and the recording medium moving relative to the electrode, the improvement comprising: a rubbing member of soft and electrically conductive material for rubbing the recording medium; and a supporting member for supporting said rubbing member adjacent a position where said rubbing member rubs the recording medium.
Claim 2
Dependent Claim
96 words
A cleaning device for removing toner from a recording medium after a toner image is formed on the recording medium by application of a voltage between a recording electrode and the recording medium with the toner which is electrically conductive and magnetic supplied in the space between the recording electrode and the recording medium moving relative to the electrode, the improvement comprising: a rubbing member of soft and electrically conductive material for rubbing the recording medium; and a supporting member for supporting said rubbing member adjacent a position where said rubbing member rubs the recording medium.
Claim 3
Dependent Claim
19 words
A device according to Claim 1, wherein said rubbing member includes fibers as the soft and electrically conductive material.
Claim 4
Dependent Claim
24 words
A device according to Claim 1, wherein said rubbing member is made of synthetic resin material having a hardness of 35 - 60 degrees.
Claim 5
Dependent Claim
104 words
A cleaning device for removing toner from a recording medium after a toner image is formed on the recording medium by application of a voltage between a recording electrode and the recording medium with the toner which is electrically conductive and magnetic supplied in the space between the recording electrode and the recording medium moving relative to the electrode, the improvement comprising: a brush of soft and electrically conductive material for rubbing the recording medium; a supporting member for supporting said rubbing member adjacent a position where said brush rubs the recording medium; and magnetic means disposed across the recording medium from said brush.
Claim 6
Dependent Claim
104 words
A cleaning device for removing toner from a recording medium after a toner image is formed on the recording medium by application of a voltage between a recording electrode and the recording medium with the toner which is electrically conductive and magnetic supplied in the space between the recording electrode and the recording medium moving relative to the electrode, the improvement comprising: a brush of soft and electrically conductive material for rubbing the recording medium; a supporting member for supporting said rubbing member adjacent a position where said brush rubs the recording medium; and magnetic means disposed across the recording medium from said brush.
Claim 7
Dependent Claim
105 words
A cleaning device for removing toner from a recording medium after a toner image is formed on the recording medium by application of a voltage between a recording electrode and the recording medium with the toner which is electrically conductive and magnetic supplied in the space between the recording electrode and the recording medium moving relative to the electrode, the improvement comprising: a brush of soft and electrically conductive material for rubbing the recording medium; a supporting member for supporting said rubbing member adjacent a position where said brush rubs the recording medium; and an electric circuit for providing a predetermined potential on said brush.
Claim 8
Dependent Claim
105 words
A cleaning device for removing toner from a recording medium after a toner image is formed on the recording medium by application of a voltage between a recording electrode and the recording medium with the toner which is electrically conductive and magnetic supplied in the space between the recording electrode and the recording medium moving relative to the electrode, the improvement comprising: a brush of soft and electrically conductive material for rubbing the recording medium; a supporting member for supporting said rubbing member adjacent a position where said brush rubs the recording medium; and an electric circuit for providing a predetermined potential on said brush.
Claim 9
Dependent Claim
18 words
A device according to Claim 5, further comprising magnetic means disposed across the recording medium from said brush.
Claim 10
Dependent Claim
42 words
A device according to Claim 4, further comprising a discharging electrode, disposed downstream of said brush with respect to movement direction of the recording medium, for removing electric charge from the recording material, the discharging electrode being supplied with a bias voltage.
Claim 11
Dependent Claim
18 words
A device according to Claim 1, wherein the recording medium is used for displaying the formed toner image.
Claim 12
Dependent Claim
104 words
An image forming apparatus wherein conductive and magnetic toner is deposited onto the recording medium to form a toner image, comprising: a recording electrode opposed to the recording medium; means for supplying the toner into the space between said electrode and the recording medium; means for applying a voltage for recording between said electrode and the recording medium; and a cleaning device for removing the toner from the recording medium, said cleaning device comprising a rubbing member of soft and electrically conductive material and a supporting member, disposed adjacent a position where said rubbing member rubs the recording medium, for supporting said rubbing member.
Claim 13
Dependent Claim
104 words
An image forming apparatus wherein conductive and magnetic toner is deposited onto the recording medium to form a toner image, comprising: a recording electrode opposed to the recording medium; means for supplying the toner into the space between said electrode and the recording medium; means for applying a voltage for recording between said electrode and the recording medium; and a cleaning device for removing the toner from the recording medium, said cleaning device comprising a rubbing member of soft and electrically conductive material and a supporting member, disposed adjacent a position where said rubbing member rubs the recording medium, for supporting said rubbing member.
Claim 14
Dependent Claim
20 words
An apparatus according to Claim 9, wherein said rubbing member includes a brush as the soft and electrically conductive material.
Claim 15
Dependent Claim
23 words
An apparatus according to Claim 9, wherein said rubbing member is of synthetic resin material having a hardness of 35 - 60 degrees.
Claim 16
Dependent Claim
118 words
An image forming apparatus for forming a toner image by depositing electrically conductive and magnetic toner to a recording medium, comprising: a recording electrode opposed to the recording medium; means for supplying the toner into a space between said electrode and the recording medium; means for applying a voltage for the recording between said electrode and the recording medium; means for removing the toner from the recording medium, said removing means including a conductive brush and a supporting member for supporting the brush adjacent a position where the brush rubs the recording medium; and a casing for accommodating said electrode and said means and having an optical opening for displaying the toner image formed on the recording medium.
Claim 17
Dependent Claim
118 words
An image forming apparatus for forming a toner image by depositing electrically conductive and magnetic toner to a recording medium, comprising: a recording electrode opposed to the recording medium; means for supplying the toner into a space between said electrode and the recording medium; means for applying a voltage for the recording between said electrode and the recording medium; means for removing the toner from the recording medium, said removing means including a conductive brush and a supporting member for supporting the brush adjacent a position where the brush rubs the recording medium; and a casing for accommodating said electrode and said means and having an optical opening for displaying the toner image formed on the recording medium.
Claim 18
Dependent Claim
18 words
An apparatus according to Claim 12, further comprising magnetic means disposed across the recording medium from said brush.
Claim 19
Dependent Claim
20 words
An apparatus according to Claim 12, wherein said brush is connected to an electric circuit for providing a predetermined potential.
Claim 20
Dependent Claim
42 words
An apparatus according to Claim 12, further comprising a discharging electrode, disposed downstream of said brush with respect to movement direction of the recording medium, for removing electric charge from the recording medium, the discharging means being supplied with a bias voltage.
Claim 21
Dependent Claim
42 words
An apparatus according to Claim 12, further comprising a toner image forming station for forming the toner image, the toner image forming station being provided with a toner container below said cleaning device to receive the toner falling from the cleaning device.
Claim 22
Dependent Claim
35 words
A display device in which toner is selectively deposited on a display medium, and having a cleaning device comprising a soft electrically conductive member which wipes the display medium upon movement relative to the medium.
Claim 23
Dependent Claim
35 words
A display device in which toner is selectively deposited on a display medium, and having a cleaning device comprising a soft electrically conductive member which wipes the display medium upon movement relative to the medium.
References Cited (Backward Citations)
No citation records indexed.
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