Printer Carriage Speed Control Under Interlock Conditions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional printing apparatuses restrict carriage movement when the housing is uncovered, limiting user observation and convenience, as they cannot move the carriage safely under interlock conditions.
Innovation Solution
A printing apparatus with a motor controller and power supply that applies different voltages to enable low-speed carriage movement even when the interlock condition is satisfied, allowing safe and convenient operation with a transmitter controlling the carriage's movement speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing is uncovered during printing, then the carriage cannot be moved to ensure safety, but this prevents users from observing carriage movement or performing maintenance tasks
Solution Approach 1:
The patent applies dynamics by making the carriage movement speed adjustable based on operational conditions. The motor controller dynamically changes the voltage supplied to the motor, enabling high-speed movement during normal operation and low-speed movement when the housing is uncovered. This dynamic speed adjustment allows the system to maintain safety during interlock conditions while still permitting necessary observation and maintenance operations.
2Reliability
If the carriage is stopped completely when the housing is uncovered, then safety is maximized, but user convenience and operational flexibility are reduced
Solution Approach 1:
The patent implements parameter changes by modifying the voltage parameter supplied to the motor based on the interlock condition. When the housing is uncovered, the motor controller switches from high voltage (enabling high-speed movement) to low voltage (enabling low-speed movement). This parameter change allows the system to adapt to different operational requirements while maintaining appropriate safety levels, providing both safety and operational flexibility.
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
Enables safe and convenient carriage movement at a low speed when the interlock condition is met, allowing users to observe or perform tasks like cleaning without safety hazards, while maintaining safety by restricting speed.
Implementation Method 1
a carriage mover including a motor to move the carriage
Data Source
AI summary
A printing apparatus includes a carriage, a carriage mover including a motor to move the carriage, a motor controller configured to control the motor, a power supply configured to selectively apply a first voltage or a second voltage to the motor controller, the second voltage being higher than the first voltage, and a transmitter to transmit a control signal for movement of the carriage when a predetermined control condition is satisfied. The first voltage is a voltage enabling the motor controller to move the carriage at a first speed by the motor. The second voltage is a voltage enabling the motor controller to move the carriage at a second speed by the motor, the second speed being higher than the first speed. The power supply applies the first voltage to the motor controller in a state where the transmitter transmits the control signal.