Movable paper guide of image forming apparatus
AssigneeSharp Kabushiki Kaisha
InventorsShinji Nakazawa, Yoshiharu Yoneda
Life of this patent
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Abstract
A guide member, which is constituted by an upper paper guide and a lower paper guide that form a paper transport path, is arranged between registration rollers and pre-registration rollers. At least one of the upper paper guide and the lower paper guide is supported swingably during printing operation.
Claims15
A movable paper guide in an image forming apparatus, in which registration rollers and pre-registration rollers are arranged on an upstream side of an electrostatic latent image carrier, and after a leading edge of carried paper contacts the registration rollers and the paper is caused to temporarily stop in a state in which a trailing edge side is sandwiched by the pre-registration rollers, carrying of the paper recommences with a timing enabling a leading edge of image information that has been developed on the electrostatic latent image carrier and a leading edge of the paper that has been stopped by the registration rollers to correspond,
- wherein a guide member, which is constituted by an upper paper guide and a lower paper guide that form a paper transport path, is arranged between the registration rollers and the pre-registration rollers, the upper paper guide is supported swingably during printing operation by having substantially central area of the upper paper guide supported by a hanging member on a device frame, and the substantially central area of the upper paper guide is a position at which the upper paper guide maintains a balanced state.
A movable paper guide in an image forming apparatus, in which registration rollers and pre-registration rollers are arranged on an upstream side of an electrostatic latent image carrier, and after a leading edge of carried paper contacts the registration rollers and the paper is caused to temporarily stop in a state in which a trailing edge side is sandwiched by the pre-registration rollers, carrying of the paper recommences with a timing enabling a leading edge of image information that has been developed on the electrostatic latent image carrier and a leading edge of the paper that has been stopped by the registration rollers to correspond,
- wherein a guide member, which is constituted by an upper paper guide and a lower paper guide that form a paper transport path, is arranged between the registration rollers and the pre-registration rollers, the lower paper guide are supported swingably during printing operation, and elastic members are fastened underneath the lower paper guide.
A movable paper guide in an image forming apparatus, in which registration rollers and pre-registration rollers are arranged on an upstream side of an electrostatic latent image carrier, and after a leading edge of carried paper contacts the registration rollers and the paper is caused to temporarily stop in a state in which a trailing edge side is sandwiched by the pre-registration rollers, carrying of the paper recommences with a timing enabling a leading edge of image information that has been developed on the electrostatic latent image carrier and a leading edge of the paper that has been stopped by the registration rollers to correspond,
- wherein a guide member, which is constituted by an upper paper guide and a lower paper guide that form a paper transport path, is arranged between the registration rollers and the pre-registration rollers, and the upper paper guide and the lower paper guide are supported swingably during printing operation.
Dependencies are inferred from the claim text.