Static Elimination Control for Sheet Sticking in Printing
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Solution Overview
Problem
Static electricity on sheets, particularly those made of synthetic materials, leads to sticking and processing issues due to inappropriate charge adjustment, which can cause jams and damage, especially in varying printing environments.
Innovation Solution
A printing system with a static elimination apparatus that adjusts settings based on sheet type and environment, displaying a rough indication value for charge adjustment to ensure appropriate static elimination before post-processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed charge adjustment value is used for static elimination, then the device complexity is reduced, but the manufacturing precision deteriorates because the charge elimination effectiveness varies with sheet type and printing environment
Solution Approach 1:
The patent implements dynamic adjustment of the charge adjustment value based on detected sheet types and printing environment conditions. The control unit automatically modifies the charge elimination parameters in real-time to match the specific requirements of different materials (e.g., synthetic paper, coated paper) and environmental factors (e.g., humidity), thereby maintaining high charge elimination effectiveness without requiring complex manual intervention.
Solution Approach 2:
The system changes the charge adjustment value parameter according to detected sheet types and environmental conditions. By storing multiple charge adjustment values corresponding to different sheet types and environments, and automatically selecting the appropriate value, the system achieves precise charge elimination for each specific condition while avoiding the need for complex real-time calculations.
2Ease of operation
If the charge adjustment value is not adjusted according to sheet type and environment, then the ease of operation is improved, but the reliability deteriorates due to inappropriate static elimination resulting in sheet sticking
Solution Approach 1:
The control unit automatically detects sheet types using sheet type detection means and environmental conditions using environment detection means, then autonomously selects and applies the appropriate charge adjustment value. This self-service mechanism eliminates the need for manual user input while ensuring reliable charge elimination, as the system independently adapts to different printing conditions without user intervention.
3Manufacturing precision
If manual adjustment of charge adjustment value is required, then the manufacturing precision is improved, but the ease of operation deteriorates and productivity decreases due to user checking time
Solution Approach 1:
The system pre-stores multiple charge adjustment values corresponding to different sheet types and printing environments in advance. When printing begins, the control unit automatically detects the sheet type and environment, then retrieves the pre-configured appropriate charge adjustment value, eliminating the need for manual adjustment during the printing process and maintaining both precision and productivity.
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
Prevents inappropriate static elimination, reducing sheet sticking and processing failures by ensuring the correct charge adjustment for the specific sheet type and environment, thereby improving print quality and system reliability.
Implementation Method 1
a technique is proposed of applying a voltage to a pair of conveyance rollers disposed downstream in a sheet conveyance direction to neutralize the electrification charges on the sheets
Data Source
AI summary
A printing system, including a static elimination apparatus configured to change a setting of static elimination processing, includes at least one processor and at least one memory that is in communication with the at least one processor. The at least one memory stores instructions for causing the at least one processor and the at least one memory to acquire a type of a sheet to be used in printing processing, acquire a printing environment, acquire a rough indication value for a charge adjustment value for a static elimination corresponding to the type of the sheet and the printing environment, and control a display unit to perform display of the rough indication value for the charge adjustment value for the static elimination and to perform display to give an instruction for continuation of the printing processing.