Printing Head Cleaning via Simulated Test Pattern Selection
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Solution Overview
Problem
Current printing technologies lack an optimal method for users to select the appropriate cleaning intensity for printing heads, leading to potential overconsumption of ink and ineffective cleaning.
Innovation Solution
A printing apparatus and method that includes a control unit to print a test pattern, display simulated test pattern images with varying defectiveness levels, and allow user selection of the appropriate cleaning intensity based on the printed pattern, ensuring tailored cleaning for the printing head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cleaning intensity is increased to improve printing quality, then printing defectiveness is reduced, but ink consumption increases
Solution Approach 1:
The cleaning intensity is made dynamically adjustable based on the actual printing head state. The system provides multiple cleaning intensity options (low, normal, high) that users can select based on the observed test pattern results, allowing the cleaning process to adapt to the actual clogging severity rather than using a fixed high-intensity approach.
Solution Approach 2:
The cleaning parameters (intensity level) are changed based on the selected test pattern image. By associating different test pattern images with different cleaning intensities, the system enables parameter adjustment that matches the actual printing head condition, avoiding unnecessary high-intensity cleaning when the head is in good condition.
2Reliability
If cleaning intensity is increased to ensure thorough cleaning, then nozzle clogging is eliminated, but cleaning effectiveness becomes uncertain without visual feedback
Solution Approach 1:
The system implements visual feedback by displaying test pattern images that show the actual printing head condition. Users can compare the printed test pattern with simulated images representing different cleaning needs, providing clear visual feedback that guides the selection of appropriate cleaning intensity and confirms whether cleaning was successful.
Solution Approach 2:
The system uses simulated test pattern images as visual copies or representations of different printing head states. These simulated images serve as reference models that help users understand their actual printing head condition and make informed decisions about cleaning intensity without requiring technical expertise.
3Measurement precision
If multiple cleaning options are provided to match different printing head states, then cleaning precision is improved, but user confusion increases without visual guidance
Solution Approach 1:
The system uses visual differentiation (analogous to color changes) through distinct test pattern images to represent different cleaning needs. Each test pattern image has unique characteristics that correspond to specific printing head conditions, making it easy for users to identify and select the appropriate cleaning option based on visual comparison rather than interpreting abstract labels.
Data Source
AI summary
A printing apparatus includes: a printing head including a plurality of nozzles; a control unit configured to control ejection of the ink by the printing head; a display unit; an operation reception unit configured to receive an operation from outside; and a cleaning unit configured to execute cleaning of the printing head, in which the control unit causes the printing head to eject the ink from the plurality of nozzles to a medium, thereby causing the printing head to print a test pattern, causes the display unit to display the plurality of test pattern images that are test pattern images obtained by simulating a printing result of the test pattern and whose printing defectiveness degrees are different as a plurality of options, receives selection of the test pattern image through the operation reception unit, and causes the cleaning unit to execute cleaning corresponding to the selected test pattern image among the plurality of types of cleaning associated with the plurality of test pattern images in advance.