Adjustment Sheet for Droplet Landing Position Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The accuracy of correction processing in recording devices is affected by the type of medium used, as wrinkling and cockling can distort test chart lines, leading to varying correction accuracy depending on the medium's propensity to wrinkle or cockle when ink is applied.
Innovation Solution
An adjustment sheet with a first surface contacting the recording medium and a second surface featuring an adjustment region with a detectable adjustment pattern is used, allowing for the formation of forward and return direction patterns to calculate a correction value for discharge timing adjustments, thereby reducing medium distortion and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a test chart is recorded on a medium where wrinkling and cockling are more likely to be generated, then the correction processing can be performed on various types of media, but the lines of the test chart may be distorted and correction accuracy decreases
Solution Approach 1:
The patent introduces an adjustment sheet as an intermediary medium between the recording head and the actual medium. The adjustment sheet has a smooth surface that prevents wrinkling and cockling, providing a stable basis for recording test charts. This mediator allows accurate correction processing to be performed without the distortion problems that occur when recording directly on media prone to wrinkling, while still enabling the system to handle various types of final media.
2Measurement precision
If a test chart is recorded on a medium in which wrinkling and cockling are less likely to be generated, then correction accuracy is high, but the method cannot be effectively applied to media where wrinkling and cockling are more likely to be generated
Solution Approach 1:
The adjustment sheet serves as a mediator that combines the advantages of both approaches. It provides the smooth, stable surface characteristics of media resistant to wrinkling and cockling, enabling high correction accuracy, while being applicable to systems that need to handle various types of final media including those prone to distortion. The adjustment sheet is specifically designed with surface properties that prevent wrinkling and cockling even when ink is applied.
3Measurement precision
If ink is discharged on a medium to form a test chart, then correction data can be obtained, but waiting for ink drying time is required and productivity is reduced
Solution Approach 1:
The adjustment sheet is designed to allow correction processing to be performed before the ink fully dries on the final medium. By providing a stable, non-wrinkling surface, the adjustment sheet enables accurate test chart recording and reading to occur during or before the ink drying process, eliminating the need to wait for complete drying before performing correction measurements.
Data Source
AI summary
When an adjustment sheet is set on a recording surface of a medium, the adjustment sheet is transported together with the medium in a transport direction by a transport unit of a recording device. The adjustment sheet includes a first surface that contacts the recording surface, and a second surface that is a surface located opposite to the first surface and includes an adjustment region being a region in which an adjustment pattern detectable by a detection unit of the recording device is formed. A prescribed pattern has been formed in a region different from the adjustment region on the second surface.