Recording Apparatus Wave Shape Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing recording apparatuses face challenges in maintaining a stable wave shape in paper to prevent lifting and ensure high-quality recording, as the corrugation formed to suppress paper lifting can lead to reduced recording quality due to variations in transport rollers and contact states, resulting in inconsistent ink landing times across the paper surface.
Innovation Solution
A recording apparatus with a liquid discharge unit, upstream and downstream transport units, and a forming unit that creates convex portions on the paper, where the transport units nip and transport the paper with alternating nipping and escape portions to maintain the wave shape, and a control unit adjusts ink discharge based on the shape and contact state to ensure consistent ink distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If corrugation is formed in the paper to suppress lifting up, then the rigidity is increased and paper posture is stabilized, but the recording quality deteriorates due to differences in ink landing time at peaks and troughs
Solution Approach 1:
The forming unit creates corrugation in the paper before the recording process begins. This preliminary action stabilizes the paper posture and prevents lifting during recording, while the control unit subsequently compensates for the corrugation effects to maintain recording quality.
Solution Approach 2:
The control unit detects the corrugation shape and adjusts the ink discharge timing and positioning based on feedback about the paper surface profile. This feedback mechanism compensates for the peaks and troughs created by the forming unit, ensuring consistent recording quality despite the corrugation.
2Reliability
If corrugation is formed more reliably to suppress lifting up, then paper stability is improved, but the drop in recording quality becomes more notable
Solution Approach 1:
The control unit continuously monitors the corrugation characteristics and adjusts ink discharge parameters in real-time based on feedback. This allows the system to maintain reliable lifting suppression while compensating for corrugation effects to preserve recording quality.
Solution Approach 2:
The control unit changes ink discharge parameters (timing, position, amount) based on the detected corrugation state. By dynamically adjusting these parameters, the system maintains reliable paper stability while compensating for surface variations to ensure consistent recording quality.
3Manufacturing precision
If transport rollers are modified to maintain wave shape, then recording quality is improved, but the complexity of the transport system increases
Solution Approach 1:
The transport system is segmented into multiple independent transport rollers, each capable of independent control. This segmentation allows the system to maintain wave shape through coordinated control of individual rollers without requiring a completely redesigned transport mechanism.
Solution Approach 2:
The transport rollers are designed with dynamic control capabilities, allowing their rotation speeds and positions to be adjusted in real-time to maintain the wave shape. This dynamic adjustment preserves recording quality without requiring complex mechanical structures.
Data Source
AI summary
When a wave shape is formed in a sheet of paper, a suppression of a reduction in recording quality that is caused by a shape of the paper is achieved, and thus, favorable recording quality is obtained.