IMAGE FORMING APPARATUS

摘要

An image forming apparatus, including a conveyer unit, an image forming unit, and a registration unit, is provided. The conveyer includes a first roller, a second roller, and a belt having a first surface to contact the sheet. The image forming unit forms an image on the sheet in an image forming area. The registration unit is on an upstream side of the image forming area and includes a third roller and a fourth roller. A rotation axis of the third roller is on a side of the first surface, and a rotation axis of the fourth roller is on a side of a second surface of the belt, which is a reverse surface of the first surface. The registration unit manipulates the third and fourth rollers to align the sheet with a reference orientation and convey the sheet to the belt.

主权项

1. An image forming apparatus, comprising:
a conveyer configured to convey a sheet, comprising:
a first roller;a second roller; anda belt strained around the first roller and the second roller and comprising a first surface configured to contact the sheet; an image forming unit configured to form an image on the sheet being conveyed in an image forming area, the image forming area comprising at least a part of a first area and at least a part of a second area, the first area being coincident with the belt, and the second area being displaced from the belt along a direction of rotation axis of the first roller; and a registration unit arranged on an upstream side of the image forming area with regard to a direction of conveyance to convey the sheet by the conveyer, the registration unit comprising a third roller and a fourth roller, the third roller being arranged to contact the fourth roller and to locate a rotation axis thereof on a side of the first surface, the fourth roller being arranged in the second area with a rotation axis thereof being located on a side of a second surface of the belt which is a reverse surface of the first surface, the registration unit being configured to manipulate the third roller and the fourth roller to align the sheet with a reference orientation and convey the sheet to the belt.