Patent ID: 8204428
Filing Date: 2012-06-19
Classification: G03G

Abstract:
1. An image forming device comprising: a feed unit configured to feed a recording medium in a first direction; a belt conveying unit including a conveyor belt configured to mount and convey the recording medium fed by the feed unit, the conveyor belt having a conveying surface that has a test-pattern area, the conveying surface having a pair of side areas that are located in both side sections of the conveying surface in a second direction orthogonal to the first direction, the conveying surface having a center area that is located between the pair of side areas, an entire part of the test-pattern area being located in the pair of side areas and no part of the test-pattern area being located in the center area; an image forming unit that is disposed opposing the conveying surface of the conveyor belt, the image forming unit configured to form an image on the recording medium and a test pattern in the test-pattern area on the conveying surface of the conveyor belt; and a pressing member having a pressing surface that grows wider from an upstream side toward a downstream side with respect to the first direction, the pressing surface configured to press the recording medium toward the conveying surface of the conveyor belt, wherein a prescribed gap is formed between the test-pattern area of the conveying surface and the pressing surface of the pressing member, preventing the pressing surface from contacting the test-pattern area, wherein the pressing member has a protruding member that protrudes toward the conveying surface from a center position of the pressing surface in the second direction, the protruding member confronting an area of the conveying surface other than the test-pattern areas, wherein the pressing member is formed with a protrusion that directly contacts a part of the belt conveying unit other than the test-pattern area, wherein the belt conveying unit further includes a frame that supports the conveyor belt, the protrusion directly contacting the frame, thereby forming a gap between the protruding member and the conveying surface of the conveyor belt when no recording medium exists between the protruding member and the conveying member.