Medium Reversing Apparatus Bend Forming Section
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional medium reversing apparatuses in image forming and reading systems face issues with medium damage and load abnormality due to the front part of the medium hanging down after ejection, causing contact with already ejected media in the tray.
Innovation Solution
Incorporating a bend forming section at the outside edge of the ejecting member to bend the medium from the clamp face, preventing it from hanging down and ensuring smooth conveyance back without jamming, by using a ribbing section that contacts the medium vertically to form a bend shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the medium is ejected from the medium ejection opening, then the medium is conveyed to the ejection tray, but the front part of the medium hangs down due to dead weight causing medium damage and load abnormality
Solution Approach 1:
The bend forming section forms a bend shape at the front end of the medium before ejection, so that when the medium is ejected, the front end is already positioned to avoid hanging down. This preliminary shaping prevents the harmful effect of the front end hanging down due to dead weight during conveyance to the ejection tray.
Solution Approach 2:
The bend forming section creates a curved bend shape at the front end of the medium. This curvature allows the front end to follow a rounded path during ejection and conveyance, preventing it from hanging down vertically under gravity. The curved geometry redirects the medium's front end away from the harmful hanging-down position.
2Productivity
If the medium is ejected to the ejection tray, then the medium is loaded, but the ejected medium pushes out already ejected medium causing load abnormality
Solution Approach 1:
The bend forming section pre-shapes the medium with a bend at its front end before ejection. This preliminary bending positions the front end to slide smoothly along the ejection tray surface rather than pushing horizontally into already loaded medium. The pre-formed bend geometry prevents the harmful pushing-out effect during the ejection process.
Data Source
AI summary
A medium reversing apparatus, an image forming apparatus and an image reading apparatus that respectively have the medium reversing apparatus are supplied capable of avoiding medium damage and medium load abnormality. In the medium reversing apparatus that conveys a sheet-like medium back and reverses obverse side and reverse side of the medium, a medium ejection opening is used for ejecting at least a part of the medium; an ejecting member at least ejects the part of the medium from the medium ejection opening and conveys the medium back; and a bend forming section is set at the outside edge portion of the ejecting member and bends the medium from a clamp face of the medium clamped by the ejecting member.