Sheet Processing Apparatus Cutting Amount Setting Modes
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Solution Overview
Problem
Conventional sheet processing apparatuses require users to manually calculate and set cutting amounts, which can lead to errors, especially when dealing with elongated sheet sizes, affecting user friendliness and accuracy in cutting margins and ragged ends.
Innovation Solution
A sheet processing apparatus with a center-folding unit and cutting unit that allows users to select between two cutting modes: one using cutting width and another using desired sheet size after cutting, enabling easier and more accurate setting of cutting amounts based on intended use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If users manually calculate and set cutting amounts based on sheet size and image size, then cutting precision can be achieved, but user friendliness deteriorates and errors occur
Solution Approach 1:
The cutting amount setting unit automatically acquires sheet size information and image size information, then calculates the cutting amount without user intervention. This self-service mechanism eliminates manual calculation errors while maintaining precision, as the system performs the computation internally based on acquired data.
Solution Approach 2:
The patent replaces the manual mechanical calculation process with an automated information processing system. The setting unit uses information acquisition and automatic calculation mechanisms to substitute human calculation, thereby eliminating errors associated with manual computation while preserving cutting precision.
2Ease of operation
If cutting amount is set using cutting width from sheet end, then ease of operation is improved, but accuracy deteriorates when dealing with elongated sheet sizes and margins
Solution Approach 1:
The setting unit acquires sheet size information and image size information as feedback, then uses this information to automatically calculate the correct cutting amount. This feedback mechanism ensures that the cutting amount is precisely determined based on actual sheet and image dimensions, preventing errors that occur with simple cutting width designation.
Solution Approach 2:
The patent replaces the simple cutting width input mechanism with an automated information processing system that acquires sheet size and image size data, then calculates the cutting amount. This substitution eliminates the errors associated with manual cutting width designation while maintaining ease of operation through automatic processing.
3Manufacturing precision
If users must grasp sheet size and image size in advance to set cutting amount, then cutting precision can be maintained, but device complexity increases
Solution Approach 1:
The information acquisition unit automatically obtains sheet size information and image size information before the cutting process. This preliminary action eliminates the need for users to manually grasp these dimensions, reducing operational complexity while maintaining cutting precision through accurate automated data collection and calculation.
Data Source
AI summary
A sheet processing apparatus which enable users to easily set the cutting amount of sheets according to the intended purpose of use. A folding unit folds the sheets. A cutting unit cuts off ends of the folded sheets. A setting unit sets details of processing of the sheets to be executed at least by the center-folding unit and the cutting unit. The setting unit is capable of selecting a first cutting amount-setting mode in which a cutting amount is set using a cutting width of the at least one end, and a second cutting amount-setting mode in which the cutting amount is set using a sheet size which the sheets should have after being cut. The setting unit sets the cutting amount in a selected one of the first cutting amount-setting mode and the second cutting amount-setting mode, when setting details of processing of the sheets to be executed by the cutting unit.