Image forming apparatus forming toner image on surface layer portion of image conveying portion

摘要

An image forming apparatus includes a toner containing portion, a first conveying member, an image conveying portion, and an image forming portion. The first conveying member is configured to convey the toner in a conveyance direction within the toner containing portion. The image conveying portion includes a surface layer portion having a first end portion located at an upstream side in the conveyance direction and a second end portion located at a downstream side in the conveyance direction. The first end portion has a larger layer thickness than second end portion. The image conveying portion is configured to convey a toner image formed on a surface of the surface layer portion at a predetermined image forming position, to a transfer position for transfer to a transfer target medium. The image forming portion is configured to form the toner image on the surface layer portion by using the toner being conveyed.

主权项

1. An image forming apparatus comprising:
a toner supply portion; a toner containing portion configured to contain toner supplied from the toner supply portion; a first conveying member configured to convey the toner in a predetermined conveyance direction within the toner containing portion, thereby agitating and charging the toner while conveying; an endless transfer belt including a surface layer portion having a first end located at an upstream side in the conveyance direction and a second end located at a downstream side in the conveyance direction, the first end having a larger layer thickness than the second end, the transfer belt being configured to convey a toner image formed on a surface of the surface layer portion at a predetermined image forming position, from the image forming position to a transfer position for transfer to a transfer target medium, the transfer position being separated from the image forming position in a direction perpendicular to the conveyance direction; and an image forming portion configured to form, at the image forming position, the toner image on the surface layer portion of the transfer belt by using the toner charged while being conveyed by the first conveying member.