Patent ID: 9612572
Date: 2017-04-04
CPC Classifications: G03G

Claim:
1. A process unit comprising: a photoconductor drum configured to rotate about a first rotation axis; a drum frame accommodating the photoconductor drum, the drum frame including a first side and a second side spaced away from the first side in a direction of the first rotation axis of the photoconductor drum; a development roller configured to supply developer to the photoconductor drum, the development roller being configured to rotate about a second rotation axis; a development frame accommodating the development roller, the development frame including a third side and a fourth side spaced away from the third side in a direction of the second rotation axis of the development roller; a coupling joint disposed at the third side of the development frame, the coupling joint being configured to rotate about a third rotation axis, the coupling joint being configured to transmit a rotational force to the development roller; a first hole disposed at the fourth side of the development frame; a first support plate mounted on the first side of the drum frame, the first support plate including a joint locating hole, the coupling joint being inserted into the joint locating hole to allow the development frame to swing about the third rotation axis of the coupling joint; and a second support plate mounted on the second side of the drum frame, the second support plate including a first projection, the first projection being inserted into the first hole to allow the development frame to swing about the third rotation axis of the coupling joint, wherein the second rotation axis of the development roller is located in a position shifted from a line segment connecting the third rotation axis of the coupling joint and the first rotation axis of the photoconductor drum to an upstream side with respect to a direction of rotation of the coupling joint as viewed in a direction of the second rotation axis of the development roller, wherein the second support plate includes a second hole, and wherein the second side of the drum frame includes a second projection inserted into the second hole of the second support plate.