Print Apparatus Binding Unit Selection for Sheet Quality
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Solution Overview
Problem
Print apparatuses face challenges in maintaining print quality due to sheet wrinkling and bending when reversing sheets through conveyance paths, particularly when using binding units that perform binding at fixed positions, which can lead to reduced print quality, especially with certain types of sheets.
Innovation Solution
A print apparatus with a control unit that determines the appropriate binding unit to use based on the sheet type, allowing the first binding unit to perform binding at specified corners without reversing sheets and the second binding unit to perform binding at fixed positions, thereby preventing quality reduction by selecting the optimal binding method and position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sheets are reversed via the conveyance path to enable binding at a fixed position, then binding processing can be performed at the fixed single position, but the sheets may be wrinkled and bent resulting in reduced print quality
Solution Approach 1:
The binding unit is made displaceable along the conveyance path, transforming from a fixed position to a dynamic position that can adapt to different sheet types and binding requirements, thereby eliminating the need to reverse sheets and maintain print quality
Solution Approach 2:
The binding position parameter is made variable rather than fixed, allowing the binding unit to be positioned at different locations along the conveyance path according to the sheet type and binding requirements, thus avoiding sheet reversal and quality degradation
2Manufacturing precision
If a binding unit capable of performing binding at multiple positions by being displaced is used, then binding processing can be performed at each corner or side without reversing sheets, but the device complexity increases
Solution Approach 1:
A single binding unit is designed to perform multiple functions by being displaceable to different positions along the conveyance path, replacing the need for multiple fixed binding units and reducing overall device complexity while maintaining versatility
Solution Approach 2:
The binding unit incorporates displacement capability along the conveyance path, transforming from a static fixed-position unit to a dynamic multi-position unit, thereby achieving multiple binding locations with a single device component
Data Source
AI summary
A print apparatus that binds sheets at corners includes printing images onto the sheets, performing binding processing at specified corners using any of a first binding unit that performs the binding processing by being displaced to a plurality of positions and a second binding unit that performs the binding processing at a fixed single position, reversing the sheets via a conveyance path provided for reversing the sheets, and controlling permitting execution of the binding processing using the first or the second binding unit in a case where the sheets to be used are sheets of a type permitted to be reversed, and permitting execution of the binding processing using the first binding unit while prohibiting execution of the binding processing with use of the second binding unit in a case where the sheets to be used are sheets of a type prohibited from being reversed.