Patent classifications
G
PHYSICS
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G03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
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G03G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
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2215/00
Apparatus for electrophotographic processes
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G03G2215/04
Arrangements for exposing and producing an image
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G03G2215/0429
Changing or enhancing the image
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G03G2215/0431
Producing a clean non-image area, i.e. avoiding show-around effects
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G03G2215/0434
Parameters defining the non-image area to be cleaned
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G03G2215/0446
Magnification degree
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G03G2215/0446

IMAGE FORMING APPARATUS
20230314981 · 2023-10-05 ·

An image forming apparatus includes an image forming portion, a rotatable endless belt, a plurality of stretching rollers including an inner roller and an upstream roller; an outer member, a pressing member, a moving mechanism; and a control portion. The moving mechanism is capable of changing a pressing amount of the pressing member to the belt or a contacting and separating state of the pressing member to the belt by changing a position of the pressing member. The control portion controls magnification of a toner image, to be formed on the belt by the image forming portion, with respect to a conveyance direction of the belt based on a position of the pressing member by the moving mechanism while the toner image is transferred to the recording material from the belt.

Image forming apparatus having controller to control movement of pressing member for pressing the inner surface of transfer belt
12072647 · 2024-08-27 · ·

An image forming apparatus includes an image forming portion, a rotatable endless belt, a plurality of stretching rollers including an inner roller and an upstream roller; an outer member, a pressing member, a moving mechanism; and a control portion. The moving mechanism is capable of changing a pressing amount of the pressing member to the belt or a contacting and separating state of the pressing member to the belt by changing a position of the pressing member. The control portion controls magnification of a toner image, to be formed on the belt by the image forming portion, with respect to a conveyance direction of the belt based on a position of the pressing member by the moving mechanism while the toner image is transferred to the recording material from the belt.