Patent ID: 9310759
Filing Date: 2016-04-12
CPC Classification: G03G

Claim Text:
1. A process cartridge comprising: a photosensitive drum having a peripheral surface configured to face a transfer roller, the photosensitive drum being rotatable in a rotating direction; a developing roller configured to supply developing agent to the peripheral surface, the developing roller defining an axial direction and having a first end at a first side and a second end at a second side opposite to the first side in the axial direction; a first seal member positioned between the frame and the first end of the developing roller, the first seal member having a first end at the first side inwardly in the axial direction; a second seal member positioned between the frame and the second end of the developing roller, the second seal member having a second end at the second side inwardly in the axial direction; a cleaning roller positioned downstream of the transfer roller in the rotating direction and including a roller portion in contact with the peripheral surface of the photosensitive drum, the cleaning roller being configured to allow the developing went on the peripheral surface of the photosensitive drum to pass through the cleaning roller and to collect paper dust on the peripheral surface of the photosensitive drum, the roller portion having a length in the axial direction longer than a distance in the axial direction between the first end of the first seal member and the second end of the second seal member; and a cleaning fabric positioned downstream of the cleaning roller and upstream of the developing roller in the rotating direction, the cleaning fabric being in contact with the peripheral surface of the photosensitive drum, the cleaning fabric being configured to allow the developing agent on the peripheral surface of the photosensitive drum to pass through the cleaning fabric and to collect the paper dust on the peripheral surface of the photosensitive drum, the cleaning fabric having a length in the axial direction smaller than the distance in the axial direction between the first end of the first seal member and the second end of the second seal member.