Print Support Heating Control for Fast Restart and Lower Power
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Solution Overview
Problem
In existing printing devices, the support member temperature drops excessively when the heating means is turned off, necessitating a wait for the temperature to rise before resuming printing.
Innovation Solution
A printing device with a control section that performs feedback control to set a lower temperature after printing is finished, using temperature detection to maintain the medium support section temperature, and includes an air blower to promote drying and prevent excessive temperature rise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the heating means is turned off after printing is finished, then power consumption is reduced, but the temperature of the support member lowers excessively causing printing to be delayed
Solution Approach 1:
The patent applies dynamics by making the set temperature variable rather than fixed. The control section dynamically adjusts the set temperature based on the printing state: during printing, the set temperature is higher to maintain drying performance, while after printing finishes, the set temperature is lowered to reduce power consumption. This dynamic adjustment resolves the contradiction between power savings and printing delay by adapting the temperature profile to the operational phase.
Solution Approach 2:
The patent changes the temperature parameter based on the printing state. By switching the set temperature between a first value (during printing) and a second lower value (after printing), the system optimizes both power consumption and readiness for next printing. This parameter change strategy allows the support member to retain sufficient warmth after printing without excessive energy expenditure.
2Productivity
If the heating means is kept on after printing is finished, then the temperature of the support member is maintained for quick resumption, but power consumption increases
Solution Approach 1:
The system dynamically adjusts the heating control based on whether printing is active or idle. During printing, aggressive heating maintains optimal temperature for immediate resumption. After printing finishes, the system transitions to a lower power mode with a reduced set temperature, balancing productivity needs with energy conservation during idle periods.
Solution Approach 2:
The heating operation follows periodic patterns: high-power heating during active printing periods, followed by reduced-power maintenance during idle periods. This periodic modulation of heating intensity achieves both quick resumption capability and reduced overall power consumption.
3Reliability
If a high set temperature is used during printing, then drying performance is improved, but the temperature drops too much when heating is reduced after printing
Solution Approach 1:
The patent implements parameter changes by using different set temperature values for different operational states. A first set temperature ensures reliable drying during printing, while a second, lower set temperature prevents excessive temperature drop after printing, maintaining support member warmth for quicker resumption without compromising drying performance during active printing.
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 smooth resumption of printing without waiting for the support member temperature to rise, ensuring efficient and stable temperature control with reduced power consumption.
Implementation Method 1
a heating section that heats the medium supported by the medium support section
Implementation Method 2
a heating section that heats the medium supported by the medium support section
Implementation Method 3
a temperature detection section that detects a temperature of the medium or of the medium support section
Implementation Method 4
a control section configured to perform feedback control on the heating section such that a detected temperature detected by the temperature detection section becomes a set temperature
Data Source
AI summary
A printing apparatus includes a printing section 6 for printing on a medium M by applying liquid, a medium support section 7 for supporting the medium applied with the liquid, a heating section 8 for heating the medium supported by the medium support section, a temperature detection section 9 for detecting the temperature of the medium or the medium support section, and a control section 12 for performing feedback control of the heating section so that the detected temperature detected by the temperature detection section becomes a set temperature, wherein the control section sets the set temperature after printing is finished to be lower than the set temperature during printing.