Inkjet Recording Device Drum Temperature Control
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Solution Overview
Problem
Conventional inkjet image recording devices face issues with image quality due to slippage between the transfer drum and recording medium, requiring complex and costly cleaning systems, and struggle to maintain consistent image quality across various recording media.
Innovation Solution
An inkjet recording device that maintains the image forming drum at a predetermined temperature, allowing direct image formation on the recording medium, eliminating the need for transfer and thus avoiding image deterioration, and includes multiple heating units to quickly adjust temperatures based on medium thickness and type for consistent dot spread and gloss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an intermediate transfer method is used with a transfer drum, then image formation can be performed, but slippage between the transfer drum and recording medium occurs causing image quality deterioration
Solution Approach 1:
The invention extracts and eliminates the transfer drum from the image forming system. By performing direct inkjet image formation on the recording medium without an intermediate transfer drum, the patent removes the source of slippage-related image quality problems and eliminates the need for cleaning systems, thereby resolving the technical contradiction between reliability and device complexity.
2Manufacturing precision
If heating is applied to maintain ink viscosity, then bleed and beading are prevented, but temperature control complexity increases
Solution Approach 1:
The invention changes the temperature parameter dynamically based on recording medium thickness and type. By using multiple heating units with different power levels and controlling their operation based on detected medium properties, the system maintains optimal ink viscosity and image quality while avoiding unnecessary heating complexity for standard media.
3Adaptability or versatility
If multiple heating units are used to quickly adjust temperatures for different media, then image quality consistency improves, but device complexity increases
Solution Approach 1:
The invention performs preliminary detection of recording medium thickness and type before image formation. Based on this advance information, the system pre-configures the appropriate heating unit operation, allowing rapid temperature adjustment without trial-and-error heating and eliminating the need for complex real-time temperature monitoring during the actual printing process.
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 approach ensures high-quality images with consistent smoothness and gloss, reduces the need for cleaning systems, and allows for rapid temperature adjustments to accommodate various recording media, enhancing operational efficiency and image quality.
Implementation Method 1
maintains the image forming drum at a predetermined temperature
Implementation Method 2
heat the image forming drum
Implementation Method 3
ejects energy-ray curable ink onto a recording medium to record images
Data Source
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AI summary
An inkjet recording device (1A) is provided with an image forming drum (21), a recording medium feeding means (22), a recording head (51), a first heating unit (71) that heats the recording medium prior to recording by the recording head held on the image forming drum, a drum temperature detecting means (91) that detects the temperature of the image forming drum, and a heating control means (10) for controlling the first heating unit, wherein the heating control means performs heating control of the first heating unit such that the temperature detected by the drum temperature detecting means is within a predetermined image forming drum set temperature range. Provided are a second heating unit (72) that heats the outer circumference surface of the image forming drum, a heating unit temperature detecting means (92), the drum temperature detecting means (91), and the heating control means (10) that performs heating control of the first heating unit such that the heating unit temperature detecting means detects a heating unit set temperature range, and that performs heating control of the second heating unit such that the drum temperature detecting means detects an image forming drum set temperature range. This enables image formation of a high image quality to be performed.