Replication Fixture Aligns Printer Components
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Solution Overview
Problem
Conventional manufacturing techniques for inkjet printers struggle with achieving high accuracy and precision in the alignment of printer components, leading to inconsistent ink droplet placement and poor print quality due to limitations in material stability and fabrication methods.
Innovation Solution
The use of replication fixtures and connection media, such as epoxy, to create a stable mechanical coupling that aligns printer components with high precision, allowing for the formation of precise surface features and eliminating the need for traditional alignment mechanisms and stress-relieving operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional manufacturing techniques are used to fabricate printer components, then production costs are reduced and manufacturing is simplified, but alignment accuracy and precision of printer components deteriorates
Solution Approach 1:
The patent uses a replication fixture that creates a precise copy or replica of the desired component alignment and positioning. The fixture contains precision-machined features that replicate the exact spatial relationships needed for component assembly, allowing less precisely manufactured components to achieve high alignment accuracy through the copying process.
Solution Approach 2:
The replication fixture serves as an intermediary tool between the manufacturing process and the final assembly. It mediates the alignment process by providing a stable reference framework that translates imprecise component positions into precise final positions, eliminating the need for complex direct alignment mechanisms.
2Manufacturing precision
If tight-tolerance machined components and adjustment mechanisms are used to control print head position, then droplet positioning accuracy is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent extracts the alignment and positioning function from the printer assembly itself and places it into a separate replication fixture. This removes the need for complex adjustment mechanisms and tight-tolerance machined components within the printer, as the positioning function is performed by the standalone fixture during assembly.
Solution Approach 2:
The replication fixture copies the precise spatial relationships and alignment features needed for droplet positioning into a reusable tool. This allows the printer assembly to be simpler while still achieving high positioning accuracy through the replicated features in the fixture.
3Strength
If traditional fasteners or welding are used to join printer components, then mechanical strength is improved, but stress within components increases requiring post operations
Solution Approach 1:
The patent changes the physical state or properties of the joining process by using a replication fixture with precision-machined surfaces and location features that guide component placement. This allows for stress-free joining through precise mechanical coupling without the need for fasteners or welding, eliminating the need for stress-relieving post operations.
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 approach maximizes assembly accuracy and precision, reduces costs and complexity, and enables the use of lower-cost materials while maintaining high-resolution printing capabilities, with improved image quality and reduced labor and material costs.
Implementation Method 1
connection media (e.g., an epoxy resin, which is also referred to simply as an 'epoxy') to create a stable mechanical coupling that aligns printer components with high precision
Data Source
AI summary
Techniques for more accurately and efficiently replicating the alignment of one or more printer components with respect to another printer component are described herein. Replication may be achieved by using a fixture and a connection media to create a near exact replica of features of the fixture, or to temporarily hold multiple printer components in position while a joining layer of the connection media hardens. More specifically, a connection media, such as epoxy, can be used to fill an intentionally-established gap between connecting bodies or components that are held in a predetermined position by the replication fixture. The replication fixture represents a mechanical mounting interface that influences the position of a print head (or an array of print heads) within a printer housing or printing mechanism. Joining printer components in such a manner enables a stable mechanical coupling to be formed that does not require post operations.