Charge-Eliminating Member Voltage Adjustment for Sheet Sticking Prevention
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Solution Overview
Problem
Existing charge-eliminating technologies require burdensome manual adjustment of voltage based on sheet surface potential measurement, and automatic correction may deviate from optimal values, leading to inconsistent charge elimination.
Innovation Solution
A charge-eliminating apparatus with a controller that allows for a changing process of the applied voltage during operation, enabling a first mode with voltage adjustment and a second mode without adjustment, based on user selection, to ensure appropriate charge elimination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic correction of charge-eliminating voltage is implemented, then ease of operation is improved, but reliability deteriorates due to potential deviation from appropriate voltage values
Solution Approach 1:
The system dynamically switches between automatic correction mode and manual setting mode based on operational conditions. The controller executes a changing process that adjusts voltage automatically during charge-eliminating operations, while allowing manual override when needed, making the system adaptable rather than fixed
Solution Approach 2:
The invention changes the operational parameter (voltage correction mode) from static to dynamic by introducing a mode selection mechanism. The system can operate in automatic correction mode during charge-eliminating operations or switch to manual setting mode, allowing parameter adjustment based on specific operational contexts
2Reliability
If manual adjustment of charge-eliminating voltage is required, then reliability is improved through precise control, but ease of operation deteriorates due to burdensome adjustment work
Solution Approach 1:
The system performs self-service through automatic correction of charge-eliminating voltage during charge-eliminating operations. The controller automatically executes the changing process to adjust voltage based on operational conditions, eliminating the need for manual measurement and adjustment by the user
3Adaptability or versatility
If voltage changing process is executed during charge-eliminating operation, then adaptability is improved, but device complexity increases
Solution Approach 1:
The controller serves multiple functions: it manages automatic voltage correction during charge-eliminating operations, handles mode switching between automatic and manual operation, and coordinates the changing process. This multi-functionality reduces the need for separate dedicated components for each function
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
Provides flexible voltage control for consistent charge elimination, adapting to sheet type and environmental conditions, preventing sheet sticking and alignment issues.
Implementation Method 1
a charge-eliminating member configured to eliminate charge of a sheet in contact with the sheet
Implementation Method 2
a voltage applying unit configured to apply a voltage to the charge-eliminating member
Data Source
AI summary
A charge-eliminating apparatus includes a charge-eliminating member, a voltage applying unit, a setting unit for setting a value of a voltage applied to the charge-eliminating member by the voltage applying unit. A controller executes a changing process in which the value of a voltage to be output by the voltage applying unit is changed from the value of the voltage set by the setting unit during execution of a charge-eliminating operation in which the charge of a plurality of sheets is continuously eliminated by the charge-eliminating member. A selecting unit selects a first mode in which the changing process is performed during the execution of the charge-eliminating operation or a second mode in which the changing process is not performed during the execution of the charge-eliminating operation and the voltage is output by the voltage applying unit based on the value set by the setting unit.