US 2008/0175638 A1Published application

Image Forming Apparatus

AssigneeBrother Kogyo Kabushiki Kaisha

InventorKentaro MURAYAMA

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Abstract

An image forming apparatus for preventing sheet jams and displacement of image formation when forming images on both front and rear sides is provided. The apparatus includes first and second width regulation mechanisms, a reverse transport mechanism, and a link mechanism. The first width regulation mechanism is provided within a sheet holding chamber, and is movable with respect to a center of an image formation range of an image forming unit. The reverse transport mechanism is configured to turn the sheet from a first side to a second side upon the first side passing through the image forming unit. The second width regulation mechanism, provided within the reverse transport mechanism, is movable in the width direction. The link mechanism is provided between the first and second width regulation mechanisms for changing a position of the second width regulation mechanism in association with position change of the first width regulation mechanism.

Claims9

Dependent claims

An image forming apparatus comprising:

a housing;
a sheet feed cassette that has a sheet holding chamber for holding stacked sheets, and can be housed within and drawn from the housing;
an image forming unit provided within the housing for performing image formation on the sheet to be transported;
a first width regulation mechanism provided within the sheet holding chamber, movable with a center of an image formation range of the image forming unit as a reference position, and positioned according to a sheet width;
a reverse transport mechanism provided within the housing for turning over the sheet that has passed through the image forming unit and transporting the sheet to the image forming unit again;
a second width regulation mechanism provided within the reverse transport mechanism, movable in the width direction, and positioned according to the sheet width;
and
a link mechanism provided between the first width regulation mechanism and the second width regulation mechanism for mechanically changing a position of the second width regulation mechanism in association with position change of the first width regulation mechanism.

5 more elements

Dependencies are inferred from the claim text.