Ink Jet Head Support Frame Bending Correction
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Solution Overview
Problem
Ink jet recording apparatuses with long ink jet heads face issues with warpage due to their own weight, leading to image quality deterioration and the need for larger structures to accommodate warpage correction mechanisms.
Innovation Solution
A compact structure is implemented with a bending correction unit on the second supporting frame that applies pressing or tensile forces to the first supporting frame, which supports the ink jet head, allowing for independent support of the ink jet head and ink supply section, reducing weight and preventing warpage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If warpage correction means is provided on the mount for each ink jet head, then bending of ink jet heads can be corrected, but the installation area increases in size
Solution Approach 1:
The support structure is divided into multiple supporting frames, each independently supporting a portion of the ink jet head. This segmentation allows bending correction to be applied locally at each frame rather than requiring a centralized correction mechanism on the mount, thereby reducing the overall installation area while maintaining correction precision.
Solution Approach 2:
Supporting frames are introduced as intermediary structures between the mount and the ink jet head. These frames serve as mediators that provide both mechanical support and bending correction functionality, eliminating the need for direct integration of correction means on the mount and reducing the required installation area.
2Device complexity
If the ink jet head is supported by both ends on the mount, then the structure is simple, but warpage occurs due to the weight of the ink jet head
Solution Approach 1:
The single two-point support structure is segmented into multiple supporting frames distributed along the length of the ink jet head. This segmentation reduces the span between support points, minimizing gravitational deflection and warpage while maintaining relatively simple individual frame structures.
Solution Approach 2:
Each supporting frame is designed with specific local properties to counteract the weight and prevent warpage at its support location. The frames provide localized support and correction capabilities, ensuring uniform support distribution along the ink jet head without requiring complex overall structure.
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 solution effectively corrects bending of the ink jet head, maintains image quality, and reduces the overall size of the installation area for the ink jet heads, enabling efficient and compact operation.
Implementation Method 1
bending correction unit that are provided on the second supporting frames and apply pressing forces or tensile forces to at least a part of the first supporting frames to correct bending of the first supporting frames
Data Source
AI summary
There is provided an ink jet recording apparatus that can correct bending of an ink jet head with a compact structure. First supporting frames 122 that support ink jet heads 110C, 110M, 110Y, and 110K and second supporting frames 170 that support a part of ink supply sections supplying ink to the ink jet heads 110C, 110M, 110Y, and 110K are mounted on a mount 300. The first supporting frames 122 are mounted on the mount 300 while both end portions of the first supporting frames 122 in a longitudinal direction are supported. Each of the second supporting frames 170 is provided with a bending correction mechanism 340 that applies a pressing force to the first supporting frame 122 to correct the bending of the first supporting frame 122.