MFP Frame Inclination for Large Document Scanning
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Solution Overview
Problem
Multi-function printers (MFPs) face challenges in reading documents larger than the document platen without upsizing the apparatus, as existing designs either create unintended folds or limit the readable size due to design constraints.
Innovation Solution
The MFP incorporates a document platen with a reading portion, an openable and closable cover, and a frame member with inclination portions that allow documents larger than the platen to be read without upsizing the apparatus, by forming a gap between the scanner cover and exterior member that enables the document to pass through without folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the cover and frame body are formed to be the same in height to maintain design unity, then the appearance maintains a sense of unity, but documents larger than the document platen create unintended folds when sandwiched between the cover and frame body
Solution Approach 1:
The frame body is segmented into multiple height levels: a first height portion corresponding to the document platen area and a second height portion extending higher at the rear end. This segmentation allows the cover to maintain design unity with the frame body while creating sufficient clearance space at the rear to prevent document folding when the cover is closed.
2Adaptability or versatility
If a gap is formed between hinges to enable insertion of larger documents, then documents larger than the document platen can pass through, but the apparatus must be upsized to widen the range of adaptable document size
Solution Approach 1:
Instead of increasing the horizontal gap between hinges, the invention utilizes the vertical dimension by extending the frame body's height at the rear end. This creates a stepped configuration where the higher second height portion provides clearance for larger documents to pass underneath the cover without requiring the apparatus to be upsized horizontally.
Data Source
AI summary
A reading apparatus includes: a document platen on which a document is placed; a reading portion configured to read a document placed on the document platen; a cover that is openable and closable between a first position at which the document platen is covered and a second position at which the document is uncovered; and a frame member including a first inclination portion and a second inclination portion, configured to constitute at least a part of an outer frame of the document platen, the first inclination portion being adjacent to the document platen and higher with an increasing distance from the document platen, and the second inclination portion being arranged farther away from the document platen than the first inclination portion and higher with an increasing distance from the document platen.