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US 5,617,195 AGranted
Cleaning unit and toner recovery system for image formation unit
AssigneeFuji Xerox Co., Ltd.
InventorsSatoru Torimaru, Junichirou Sameshima, Norio Hokari, Yukio Hayashi, Mikio Kobayashi, Shuji Iseki, Ryouichi Tsuruoka
Life of this patent
Estimating the term…
Abstract
Residual toner is removed from a belt-type paper support by means of a brush roll and blade. The removed toner is guided to a waste toner storage vessel by means of a screw member. A sensor indicates when the toner storage vessel is full.
Claims7
A cleaning unit for an image formation unit, comprising;
- a main unit frame removably insertable into the image formation unit;
- a transfer module supporting a paper support element;
- a cleaning member placed in contact with the paper support element;
- a toner storage vessel for storing waste toner;
- a guide member located to receive toner dropping from a bottom of said cleaning member and to direct the received toner to said toner storage vessels;
- a screw member having a portion located outside of said toner storage vessel and movable in said toner storage vessel;
- and
- a sensor located on the outside of said toner storage vessel for sensing rotation of said screw member
- wherein said transfer module, said cleaning member and said toner storage vessel form an integral unit, the integral unit being swingable from said main unit frame when said main unit frame is removed from the image formation unit.
6 more elements
A cleaning unit for an image formation unit, comprising:
- a main unit frame removably insertable into the image formation unit;
- a cleaning member placed in contact with the belt papers support;
- a transfer module supporting a paper support element;
- a toner storage vessel for storing waste toner;
- a guide member located to receive toner dropping from a bottom of said cleaning member and to direct the received toner to said toner storage vessel;
- a screw member having a portion located outside of said toner storage vessel and movable in said toner storage vessel;
- and
- a sensor located on the outside of said toner storage vessel for sensing of said screw member;
- wherein said transfer module, said cleaning member and said toner storage vessel form an integral unit, the integral unit being swingable from said main unit frame when said main unit frame is removed from the image formation unit.
6 more elements
An image formation unit, comprising:
- a main unit of said image formation unit;
- a main unit frame removably insertable into said main unit;
- a transfer module supporting a paper conveyer belt and swingable from said main unit frame when said main unit frame is removed from said main unit of said image formation unit;
- a screw member having a portion located outside of said toner storage vessel and movable in said toner storage vessel;
- a sensor located on the outside of said toner storage vessel for sensing movement of said screw member;
- and
- a cleaning unit being integral with said transfer module and having at least a toner storage vessel.
4 more elements
An image formation unit, comprising:
- a main unit of said image formation unit;
- a main unit frame removably insertable into such main unit;
- a transfer module supporting a paper conveyer belt and swingable from said main unit frame said main unit frame is removed from said main unit of said image formation unit;
- a screw member, having a portion located outside of said toner storage vessel and movable in said toner storage vessel;
- a sensor located on the outside of said toner storage vessel for sensing rotation of said screw member;
- and
- a cleaning unit being integral with said transfer module and having at least a toner storage vessel.
4 more elements
Dependencies are inferred from the claim text.