Replaceable Printbar Subassembly for Easy Repair
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Solution Overview
Problem
Commercially used printing devices, such as inkjet printers and multifunction devices, are often difficult to repair due to complex and hard-to-access components like printbars, leading to costly and frequent service visits for relatively inexpensive parts, resulting in prolonged repair times and user frustration.
Innovation Solution
A replaceable printing subassembly that includes a printbar, lift mechanism, and fluid receiving system, allowing for easy replacement of the entire subassembly rather than individual components, with a refillable ink supply separate from the subassembly, reducing the need for on-site repairs and minimizing the complexity of maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If printing devices use complex and hard-to-access components like printbars, then device functionality and printing quality are improved, but ease of repair deteriorates
Solution Approach 1:
The printing device is divided into separate functional modules: a replaceable printbar assembly containing the print head and drive mechanism, and a separate media feed system. This segmentation allows the printbar to be easily removed and replaced without disassembling the entire device, resolving the contradiction between maintaining high printing quality through complex components and enabling easy repair of those components.
2Reliability
If individual components like printbars are difficult to repair, then service visits become more frequent and costly, but component reliability is maintained through professional servicing
Solution Approach 1:
The printbar is designed as an inexpensive, user-replaceable component rather than a permanent, serviceable part. When the printbar fails, users can simply replace it themselves without requiring professional service visits, eliminating repair time and reducing service costs while maintaining overall system reliability through easy component turnover.
3Ease of manufacture
If printbars and associated parts are replaced one-by-one in separate service visits, then repair costs increase, but each component can be optimized independently
Solution Approach 1:
The print head, drive motor, and associated mechanical components are merged into a single integrated printbar assembly that is replaced as one unit. This merging simplifies maintenance by eliminating the need to service multiple separate components individually, reducing both the number of service visits required and the overall complexity of maintenance procedures while allowing the entire assembly to be optimized together during manufacturing.
Data Source
AI summary
A printing subassembly is disclosed. A printing subassembly includes a frame, a printbar coupled to the frame, and a lift mechanism coupled to the printbar. The lift mechanism selectively moves the printbar with respect to the frame. A fluid receiving system is coupled to the printbar.