Bookbinding Device Inverts Printing Sequence for Right-Opening Books
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Solution Overview
Problem
Conventional bookbinding devices struggle to automatically create appropriate right-opening and left-opening books, as they require manual arrangement of cover sheets and have difficulty inverting the printing sequence to accommodate the different layouts and opening directions of these book types.
Innovation Solution
A bookbinding device with an input unit for image data, a printing unit, a stacking unit, a paper-feed unit, a bookbinding unit, and a control unit that sets a mode for either right-opening or left-opening bookbinding, inverting the printing sequence of image data based on the selected mode to correctly arrange pages and covers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual arrangement of cover sheets is used, then bookbinding accuracy for right-opening and left-opening books is improved, but operator workload and processing time increase
Solution Approach 1:
The system performs preliminary actions by automatically arranging cover sheets and inverting printing sequences before bookbinding. The control unit pre-processes the printing sequence based on the selected book type (right-opening or left-opening) and automatically positions cover sheets, eliminating the need for manual arrangement during operation.
Solution Approach 2:
The bookbinding device performs self-service by automatically adjusting its own operations based on the selected book type. The control unit autonomously inverts the printing sequence and manages cover sheet arrangement without operator intervention, making the system self-sufficient in adapting to different bookbinding requirements.
2Productivity
If automatic bookbinding processing is implemented, then productivity is improved, but ability to handle different book types (right-opening and left-opening) deteriorates
Solution Approach 1:
The system implements dynamics by making the printing sequence and cover sheet arrangement adjustable based on the selected book type. The control unit dynamically changes the processing parameters - inverting the printing sequence for right-opening books while maintaining normal sequence for left-opening books - allowing automatic adaptation to different book types without sacrificing productivity.
Solution Approach 2:
The system applies parameter changes by modifying the printing sequence parameter according to the book type. The control unit changes the sequence parameter from normal (for left-opening) to inverted (for right-opening), enabling automatic handling of different book types while maintaining high processing efficiency.
3Manufacturing precision
If printing sequence is inverted for right-opening books, then book layout accuracy is improved, but processing complexity increases
Solution Approach 1:
The control unit performs the sequence inversion as a preliminary action before the actual printing process. By pre-calculating and pre-arranging the inverted printing sequence based on the selected book type, the system achieves accurate book layouts without adding complexity during the printing execution phase.
Data Source
AI summary
A CPU of a bookbinding system sets one of a right-opening bookbinding mode for feeding a cover sheet on which a cover is laid out at the left of a spine portion thereof to create a right-opening book, and a left-opening bookbinding mode for feeding a cover sheet on which a cover is laid out at the right of the spine portion to create a left-opening book. Also, the bookbinding system controls a printer unit to invert a print sequence depending on whether the system is set in the right-opening bookbinding mode or is set in the left-opening bookbinding mode. The print sequence or inverted print sequence is set so that, of image data of multiple pages, print image data that should be the top page is arranged appropriately for creating a right-opening book or a left-opening book.