Inkjet Head Capture Unit for Paper Dust Removal
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Solution Overview
Problem
Inkjet recording apparatuses face issues with extraneous substances like paper dust being blown upwards by air flows and sticking to the inkjet head nozzles, disrupting ink discharge and reducing printing accuracy.
Innovation Solution
An inkjet recording apparatus with a capture unit positioned upstream of the inkjet head to capture extraneous substances, preventing them from reaching the discharge surface, which includes a paper dust removal mechanism using a sponge member, auger member, and storage portions, and an electrostatic adsorption mechanism to ensure efficient capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the sheet is transported at high speed by the transport belt, then productivity is improved, but extraneous substances are blown upwards by air flow and stick to the inkjet head, worsening printing precision
Solution Approach 1:
The capture unit is positioned upstream of the inkjet head in the sheet transport direction to preliminarily capture extraneous substances before they can reach and stick to the discharge surface. This preliminary action prevents the harmful effect of dust accumulation while allowing high-speed transport to continue.
Solution Approach 2:
The capture unit acts as an intermediary component between the air flow carrying extraneous substances and the inkjet head. It intercepts and captures the extraneous substances that would otherwise travel along the air flow and stick to the discharge surface, thereby protecting the printing precision.
2Manufacturing precision
If a capture unit is added upstream of the inkjet head to capture extraneous substances, then printing accuracy is improved, but device complexity increases
Solution Approach 1:
The capture unit utilizes a sponge member with porous structure that can be positioned close to the inkjet head without requiring complex enclosed structures. The sponge member effectively captures extraneous substances through its porous texture while maintaining a relatively simple and compact apparatus design.
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
The capture unit effectively prevents extraneous substances from sticking to the inkjet head nozzles, maintaining printing accuracy and ensuring continuous ink discharge by capturing paper dust and other substances before they reach the discharge surface.
Implementation Method 1
a paper dust removal mechanism using a sponge member
Implementation Method 2
an electrostatic adsorption mechanism to ensure efficient capture
Data Source
AI summary
An inkjet recording apparatus is provided. The inkjet recording apparatus includes an inkjet head having a discharge surface in which discharge ports are formed for discharging ink; a moving mechanism that is configured to move the inkjet head and a recording medium relative to each other; and a capture unit that is configured to capture an extraneous substance, the capture unit disposed upstream of the inkjet head in a moving direction of the recording medium relative to the inkjet head, and disposed adjacent to the inkjet head.