Printer Toner Container with Integrated Load-Bearing Structure
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Solution Overview
Problem
Conventional electrophotographic printers require frequent replacement of toner cartridges, leading to increased costs and complexity, as they often lack sufficient toner supply capacity without increasing printer size.
Innovation Solution
A new toner container design that enlarges the toner supply capacity without increasing the printer's size, allowing for a non-removable, integrated toner container that combines load-bearing and exterior functions, enabling incremental printing capacity purchases and eliminating the need for frequent replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the toner supply capacity is increased, then the printer's useful life is extended and replacement frequency is reduced, but the printer size increases
Solution Approach 1:
The patent implements a two-chamber toner container system where a removable first chamber (containing photoconductor and development components) is nested within a permanent second chamber (containing toner supply and waste toner collection). This nesting allows the toner supply capacity to be increased through the permanent second chamber while keeping the removable first chamber compact, thus extending printer useful life without proportionally increasing overall printer size.
Solution Approach 2:
The patent utilizes vertical space arrangement by positioning the toner supply chamber and waste toner chamber in a vertical configuration, with the photoconductor assembly positioned between them. This dimensional arrangement maximizes toner storage capacity within a compact footprint, allowing increased toner supply capacity without increasing the horizontal printer footprint.
2Reliability
If a replaceable toner cartridge is used, then the toner supply can be replaced when depleted, but the complexity of frequent replacement and user operation increases
Solution Approach 1:
The patent divides the toner container into two segments: a permanent second chamber that remains in the printer and a removable first chamber that can be replaced. This segmentation allows the permanent second chamber to maintain toner supply continuity while reducing user operation complexity, as users only need to replace the smaller first chamber rather than the entire toner container.
Solution Approach 2:
The permanent second chamber serves multiple functions: it acts as the structural housing for the toner container, provides the toner supply reservoir, and serves as the waste toner collection chamber. This multi-functionality reduces the number of separate components users must handle, simplifying operation while maintaining reliability.
3Device complexity
If the toner container is made non-removable and integrated, then the device complexity is reduced and user operation is simplified, but the adaptability for different printing capacity needs is reduced
Solution Approach 1:
The patent segments the toner container into a permanent integrated second chamber and a removable first chamber. This segmentation reduces overall device complexity by making the main structure permanent while maintaining adaptability through the removable first chamber, which can be replaced to adjust printing capacity needs.
Solution Approach 2:
The patent creates a hybrid system where the permanent second chamber provides structural stability and the removable first chamber provides dynamic adaptability. Users can replace the first chamber to adjust printing capacity, maintaining versatility while the integrated second chamber simplifies the overall structure compared to completely removable cartridge systems.
Data Source
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AI summary
A printer (10) includes a printer housing (14), a photoconductor (16) to apply toner to a print substrate, a developer (22) to apply toner to the photoconductor, a light source (20) to expose parts of the photoconductor to light, and a toner container (12) to supply toner to the developer. The toner container housing (60) is integrated into the printer housing as a load bearing structure or as an exterior feature, and/or the light source is integrated into the toner container as a single sub-assembly within the printer housing.