Image forming apparatus and image forming method for preventing paper jams in a fixing unit
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorShinji Maruyama
Life of this patent
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Abstract
There is provided a technique in which a paper jam in a fixing unit can be prevented without adding a special part or the like, and without causing a damage of a pressure roller and distortion of an image due to adhesion of toner or paper powder to a peeling member. There are provided an image judgment part that judges whether an image is formed on a second surface as a back surface opposite to a first surface of a sheet on which an image is to be formed, and an image forming part that forms a specified image in the vicinity of a leading end of the first surface of the sheet in a sheet transport direction in a case where the image judgment part judges that the image is formed on the second surface.
Claims20
An image forming apparatus comprising:
- an image judgment part that judges whether an image is formed on a second surface as a back surface opposite to a first surface of a sheet on which an image is to be formed;
- and
- an image forming part that forms a specified image in a vicinity of a leading end of the first surface of the sheet in a sheet transport direction in a case where the image judgment part judges that the image is formed on the second surface.
An image forming apparatus comprising:
- image judgment means for judging whether an image is formed on a second surface as a back surface opposite to a first surface of a sheet on which an image is to be formed;
- and
- image forming means for forming a specified image in a vicinity of a leading end of the first surface of the sheet in a sheet transport direction in a case where the image judgment means judges that the image is formed on the second surface.
An image forming method comprising:
- an image judgment step in which it is judged whether an image is formed on a second surface as a back surface opposite to a first surface of a sheet on which an image is to be formed;
- and
- an image forming step in which in a case where it is judged that the image is formed on the second surface at the image judgment step, a specified image is formed in a vicinity of a leading end of the first surface of the sheet in a sheet transport direction.
Dependencies are inferred from the claim text.