An image forming apparatus includes a transfer member, a fixing member, a guide member, and an attraction member. The transfer member transfers a developer to a medium. The fixing member fixes onto the medium the developer transferred to the medium. The guide member is disposed between the transfer member and the fixing member to guide the medium. The attraction member attracts the developer through the opening. An opening is located upstream of the guide member in a medium transport direction.

An image forming method for forming an image on a base material by using powder includes: attaching a protective material to a surface of the base material on which the image is to be formed; forming an attachment layer on at least one of the base material and the protective material attached to the base material; attaching the powder to the attachment layer after attaching the protective material; and removing excess powder attached to the protective material from the protective material without attaching to the attachment layer.

An image forming apparatus includes a transfer member, a fixing member, a guide member, and an attraction member. The transfer member transfers a developer to a medium. The fixing member fixes onto the medium the developer transferred to the medium. The guide member is disposed between the transfer member and the fixing member to guide the medium. The attraction member attracts the developer through the opening. An opening is located upstream of the guide member in a medium transport direction.

An image forming apparatus includes a first sheet feeding portion, a second sheet feeding portion, an image forming portion, a paper dust collecting portion, a merging portion, a rotatable member, a first guiding member, and a second guiding member. The paper dust collecting portion is provided downstream of the first sheet feeding portion and the second sheet feeding portion and upstream of the merging portion with respect to a conveying direction of a recording material.

A sheet detection device includes a measurement unit for measuring a feature amount of a sheet conveyed by a conveyance unit, a pressing member movable between a first position separated from the measurement unit and a second position closer to the measurement unit than the first position, and a moving unit configured to move the pressing member, wherein the pressing member is arranged by the moving unit at the first position in a case where the sheet has not been conveyed by the conveyance unit to a measurement position of the measurement unit, wherein the moving unit is configured to move the pressing member to the second position from the first position in a case where the sheet has been conveyed by the conveyance unit to the measurement position of the measurement unit.

An image forming apparatus includes a first sheet feeding portion, a second sheet feeding portion, an image forming portion, a paper dust collecting portion, a merging portion, a rotatable member, a first guiding member, and a second guiding member. The paper dust collecting portion is provided downstream of the first sheet feeding portion and the second sheet feeding portion and upstream of the merging portion with respect to a conveying direction of a recording material.