Printer Reverse Voltage Circuit Layout for Stable Regeneration
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Solution Overview
Problem
Printers face challenges in reducing the size of reverse voltage regeneration circuits and minimizing voltage variations due to the generation of large reverse voltages during high-definition printing, which increases the size of electrical elements and leads to fluctuations in operating voltage.
Innovation Solution
The implementation of a printer configuration with two reverse voltage regeneration circuits, each equipped with a smoothing coil, and a switch mounted between them to suppress magnetic interference, along with a control element generating switching signals to manage the flow of reverse voltages, effectively reducing the size of electrical elements and voltage variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single reverse voltage regeneration circuit is used to regenerate reverse voltages from multiple driving elements, then the circuit structure is simplified, but the voltage value rises due to superimposition of reverse voltages, causing large current to flow and requiring increased voltage endurance and electrostatic capacitance, which increases the size of electrical elements and the printer
Solution Approach 1:
The reverse voltage regeneration circuit is divided into multiple independent circuits (first reverse voltage regeneration circuit and second reverse voltage regeneration circuit). Each circuit handles reverse voltages from specific driving elements, preventing voltage superimposition and reducing the current burden on each individual circuit, thereby allowing the use of smaller electrical elements with lower voltage endurance requirements.
Solution Approach 2:
A switch is introduced as an intermediary component mounted on the circuit board between the first and second smoothing coils. This switch controls the connection and disconnection of reverse voltage paths, enabling selective regeneration of reverse voltages from different driving elements through different circuits, thus preventing simultaneous superimposition while maintaining simplified overall circuit structure.
2Device complexity
If a single reverse voltage regeneration circuit is used, then the circuit configuration is simplified, but fluctuations occur in the operating voltage of the regeneration circuit itself, causing variations in the regenerated voltage to increase
Solution Approach 1:
The reverse voltage regeneration function is segmented into multiple independent circuits, each with its own smoothing coil and control path. This segmentation isolates voltage fluctuations from different driving elements, preventing them from accumulating and causing large variations in the overall regenerated voltage, thereby improving voltage stability.
Solution Approach 2:
The control element generates switching signals that periodically control the switches in different reverse voltage regeneration circuits. This periodic switching enables selective and controlled regeneration of reverse voltages, stabilizing the operating voltage of each regeneration circuit by preventing simultaneous operation that would cause voltage fluctuations.
3Reliability
If electrical elements with increased voltage endurance and electrostatic capacitance are used, then the reverse voltage regeneration circuit can handle large reverse voltages, but the external form size of the electrical elements increases and the circuit board size increases
Solution Approach 1:
The reverse voltage regeneration circuit is divided into multiple circuits that share the total reverse voltage handling burden. Each individual circuit experiences reduced voltage and current stress compared to a single circuit handling all reverse voltages, allowing the use of electrical elements with smaller voltage endurance ratings and lower electrostatic capacitance, thereby reducing their physical size.
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 configuration suppresses the increase in size of reverse voltage regeneration circuits and magnetic interference, resulting in stable voltage regeneration and a compact printer design.
Implementation Method 1
a reverse voltage regeneration circuit that regenerates a reverse voltage generated by electromechanical conversion in the character printing section driving element
Implementation Method 2
a switch that switches between states of whether or not to supply the drive power to the character printing section driving element
Data Source
AI summary
A printer that performs character printing by driving a character printing section, the printer including a character printing section driving element that electromechanically converts drive power, a switch that switches between states of whether or not to supply the drive power, a reverse voltage regeneration circuit that regenerates a reverse voltage generated by electromechanical conversion, and a circuit board on which the reverse voltage regeneration circuit and the switch are mounted, wherein the reverse voltage regeneration circuit has a first reverse voltage regeneration circuit and a second reverse voltage regeneration circuit, the first reverse voltage regeneration circuit has a first smoothing coil, and the second reverse voltage regeneration circuit has a second smoothing coil, and the switch is mounted on a board surface of the circuit board so as to be disposed between the first smoothing coil and the second smoothing coil.