Printing Apparatus Identifier Segmentation for Printability Sync
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Solution Overview
Problem
Printing apparatuses with interchangeable print heads often fail to update the printability condition recognized by host devices, leading to disagreements in printability conditions, which can result in improper printing operations.
Innovation Solution
A printing apparatus with a service providing unit that uses distinct identifiers and services for different print head configurations, ensuring that host devices receive updated printability information and reflect changes in print head configurations, thereby maintaining synchronization between the apparatus and host devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the printing apparatus uses a single identifier for different print head configurations, then the device complexity is reduced, but the host device cannot recognize changes in printability conditions
Solution Approach 1:
The patent segments the identifier system by creating distinct identifiers for different print head configurations (first identifier for first configuration, second identifier for second configuration). This segmentation allows the host device to recognize and differentiate between various printability conditions, ensuring that printability information is not lost when print heads are replaced or changed.
2Adaptability or versatility
If the printing apparatus maintains a single printing service for all configurations, then the service structure is simplified, but the host device cannot adapt to different print head configurations
Solution Approach 1:
The patent implements a dynamic service structure where the printing service can switch between first printing service and second printing service based on the loaded print head configuration. This dynamic adaptation allows the system to respond to configuration changes while maintaining a unified service interface, balancing versatility with manageable complexity.
3Reliability
If the host device does not update printability conditions, then the communication protocol is simpler, but the printing operations become improper
Solution Approach 1:
The patent establishes a feedback mechanism where the printing apparatus notifies the host device of printability condition changes through identifier changes. The host device uses these identifiers to determine appropriate printability conditions, creating a closed-loop communication system that ensures reliable printing operations while maintaining protocol simplicity.
Data Source
AI summary
A printing system includes a printing apparatus providing, in a case a first type of printing material is loaded to a print unit without loading a second type of printing material, a host device with a first printing service using a first identifier to identify the printing apparatus, and in a case where at least the second type of printing material is loaded to the print unit, to provide the host device with a second printing service using a different second identifier. The host device obtains printability information when an identifier provided from the printing apparatus is an unknown identifier, the printability information being information indicating a printable condition with the printing apparatus, sets the printable condition with the printing apparatus based on the obtained printability information, and transmits a printing job based on the set condition to the printing apparatus.