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AssigneeKonica Minolta Business Technologies, Inc.
InventorsNoboru Oomoto, Shoichi Yoshikawa, Shigeru Tashiro, Atsuhiko Shimoyama, Yoshiyuki Toso, Tou Matsunaga
Estimating the term…
An image forming apparatus includes a cylindrical or annular fixing member, an outer surface of which is brought into pressure contact with a conveyed sheet to fix an image onto the sheet; and a heating source for heating the fixing member to a specified target temperature. The fixing member includes a cylindrical or annular base material, a rubber layer with elasticity, and an outer layer for aiding release of the sheet. An end portion of the rubber layer and an end portion of the outer layer are each positioned inner than an end portion of the base material with respect to a width direction perpendicular to a circumferential direction on the base material. A filter member capable of trapping ultra fine particles generated from the rubber layer is provided on the base material in a position facing the end portion of the rubber layer along the circumferential direction.
An image forming apparatus, comprising:
An image forming apparatus, comprising:
An image forming apparatus comprising:
An image forming apparatus, comprising:
An image forming apparatus comprising:
An image forming apparatus, comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Using contact heat: structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
Structural details of the fixing unit in general, e.g. cooling means, heat shielding means: with special means for lubricating and/or cleaning the…
Electrography
About 4 years 11 months of term left · ends 9 Oct 2031 (estimated)
This application is based on an application No. 2009-285072 filed in Japan on Dec. 16, 2009, the entire content of which is hereby incorporated by reference.
The present invention relates to an image forming apparatus, and more specifically to an electrophotographic image forming apparatus such as printers, copying machines and facsimile machines.
It is known for this kind of an electrophotographic image forming apparatus that several kinds of chemical substances are emitted during imaging operation. Typical chemical substances to be emitted (chemical emission) include ozone generated during charging of a photoconductor and toner powder dust generated during developing or fixing operation. Conventional solutions to the chemical emission include taking measures against the emission source of such chemical emission so as to decline the emission amount itself, and providing a filter to prevent emitted substances from being discharged outside from the apparatus. For example, in JP H5-150605 A, a divider plate is provided inside the apparatus to guide generated ozone to an ozonolysis device.
The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
FIG. 1 is an overall configuration view showing an image forming apparatus in one embodiment of the invention;
FIG. 2 is a cross sectional view showing one aspect of a fixing roller included in the image forming apparatus;
FIG. 1 shows a schematic configuration of a color tandem-type image forming apparatus 100 in one embodiment of the invention. The image forming apparatus, which is a multi-functional machine having functions of a scanner, a copier, a printer and other apparatuses, is called MFT (Multi Function Peripheral).
The image forming apparatus 100 includes an intermediate transfer belt 108 as an annular intermediate transfer body provided generally in the center inside a main body casing 101, the intermediate transfer belt 108 being wound around two rollers 102, 106 and moving in the circumferential direction. One roller 102 out of two rollers 102 and 106 is placed on the left-hand side in the drawing, while the other roller 106 is placed on the right-hand side in the drawing. The intermediate transfer belt 108 is supported on these rollers 102, 106, and is rotated in an arrow X direction.
Imaging units 110Y, 110M, 110C and 110K as printing sections corresponding to respective color toners of yellow (Y), magenta (M), cyan (C) and black (K) are placed below the intermediate transfer belt 108 side by side in order from the left-hand side in the drawing.