Booklet Sheet Bonding with Variable-Density Bonding Images
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Solution Overview
Problem
Existing booklet production methods using powder bonding agents face challenges with inconsistent sheet sizes and materials, leading to inefficient consumption of bonding agents and difficulty in bonding sheets.
Innovation Solution
An image forming system that forms a bonding image at varying densities based on sheet conditions, using a bonding toner to bond sheets through heat and pressure, ensuring effective bonding while minimizing agent consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a powder bonding agent is used to bond sheets, then sheets can be bonded without metal staples, but the bonding agent is consumed inefficiently when sheet sizes or materials are unsuitable
Solution Approach 1:
The system performs preliminary detection of sheet properties (size, material) before bonding operations. Based on this detection, the controller determines in advance whether to apply a bonding image at high density or skip bonding image formation entirely, preventing unnecessary bonding agent consumption on unsuitable sheets while ensuring adequate bonding on suitable sheets
Solution Approach 2:
The system dynamically changes the bonding image density parameter based on detected sheet properties. When sheets are detected to be suitable for bonding, a high-density bonding image is formed; when sheets are unsuitable, bonding image formation is skipped or reduced to minimum density, thereby optimizing bonding agent consumption across different sheet types
2Reliability
If a bonding image is formed on all sheets, then bonding preparation is consistent, but bonding agent is wasted on sheets that cannot be bonded
Solution Approach 1:
The system incorporates feedback from sheet property detection into the bonding image formation decision. The controller continuously monitors sheet characteristics (size, material suitability) and adjusts bonding image formation accordingly, forming bonding images only when detection indicates bonding is feasible, thus eliminating waste while maintaining reliability
Solution Approach 2:
Before forming any bonding image, the system performs preliminary detection of sheet properties and makes advance determination on whether bonding image formation should occur. This preliminary action prevents bonding agent waste on unsuitable sheets while ensuring bonding preparation is consistent for suitable sheets
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system efficiently bonds sheets of varying sizes and materials, reducing waste and improving the recyclability of booklets by avoiding metal staples.
Implementation Method 1
a bonding unit configured to bond the plurality of sheets by applying heat and pressure to the binding margin of the plurality of sheets
Implementation Method 2
a bonding unit configured to bond the plurality of sheets by applying heat and pressure to the binding margin of the plurality of sheets
Data Source
AI summary
An image forming unit forms a user image and a bonding image formed in a binding margin of a booklet and is for bonding a plurality of sheets forming the booklet. A bonding unit bonds the plurality of sheets by applying heat and pressure to the binding margin of the plurality of sheets. The image forming unit forms the bonding image and forms the user image at a first density on a sheet that satisfies a condition for enabling bonding in the bonding unit from among the plurality of sheets. The image forming unit forms the user image and does not form the bonding image or forms the bonding image at a second density lower than the first density on a sheet that does not satisfy the condition for enabling bonding from among the plurality of sheets.