Pressure-Bonding Print Control to Prevent Toner Peeling
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Solution Overview
Problem
The existing image forming systems face issues with peeling of images on pressure-bonding prints, particularly when forming toner images on pressure-bonding postcards, leading to a decrease in image quality.
Innovation Solution
The system includes a controller that detects the type of pressure-bonding print input and displays a warning before forming an image on the pressure-bonding print if it is of a type where adhesive is applied to a specific region, ensuring that the image is formed in a manner that prevents peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heat and pressure are applied to fix the toner image on the pressure-bonding print, then the toner image is fixed on the pressure-bonding print, but peeling occurs on the image inside the pressure-bonding print causing image quality to lower
Solution Approach 1:
The invention applies different adhesive application strategies to different regions of the pressure-bonding print. When forming an image on the paste surface, adhesive is applied to the non-image region while avoiding the image region, preventing peeling at the image boundaries while maintaining bonding strength in non-critical areas.
2Strength
If adhesive is applied to the entire surface for pressure bonding, then strong bonding is achieved, but peeling occurs at the image region causing toner transfer
Solution Approach 1:
The invention selectively applies adhesive to specific regions rather than the entire surface. By controlling adhesive application to exclude image regions when images are formed on the paste surface, the system maintains sufficient bonding strength for securement while preventing the harmful effect of adhesive-induced toner peeling at critical image areas.
Solution Approach 2:
The invention introduces a control system that acts as an intermediary between the adhesive application mechanism and the image formation process. This controller detects whether an image is formed on the paste surface and automatically adjusts adhesive application accordingly, mediating between the conflicting requirements of bonding strength and image protection.
3Productivity
If the image is formed on the paste surface where adhesive is applied, then the image is formed on the pressure-bonding print, but peeling occurs on the image causing quality to lower
Solution Approach 1:
The invention enables image formation on the paste surface by applying adhesive only to non-image regions. This local differentiation allows the image to be formed directly on the adhesive-bearing surface without compromising image quality, as the adhesive is strategically positioned to secure the print while avoiding contact with the image area that would cause peeling.
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
This approach prevents peeling of toner images on pressure-bonding postcards, maintaining image quality by ensuring appropriate application of heat and pressure based on the print type, thereby reducing the likelihood of toner transfer during unsealing.
Implementation Method 1
heat and pressure are applied to the pressure-bonding print, so that the toner image is fixed on the pressure-bonding print
Implementation Method 2
opposing surfaces each on which personal information is formed as an image are superposed and pseudo-bonded together
Data Source
AI summary
An image forming apparatus includes an image forming portion, a fixing portion, an input portion to which a kind of a pressure-bonding print which is a recording material on which an image is formed on a surface thereof and which is folded and bonded at the surface is inputted, a display portion, and a controller. The controller causes the display portion to display a message before the image is formed on the pressure-bonding print when a kind of the pressure-bonding print inputted by the input portion is a first kind such that an adhesive is applied to a first region of the surface and is not applied to a second region inside the first region in a case that the image is formed on the pressure-bonding print by the image forming portion.