Printing Device Capability Signaling for Standard Print Functions
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Solution Overview
Problem
Printing apparatuses do not provide attribute information indicating support for standard print functions, leading to impaired convenience in information processing apparatuses.
Innovation Solution
A printing apparatus transmits support information for standard print functions to a print server in response to specific events, such as registration, activation, or configuration changes, ensuring the print server is aware of the printing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the printing apparatus does not transmit support information for standard print functions, then the device complexity is reduced, but the information processing apparatus cannot determine whether the virtual printer supports the standard print function, impairing convenience
Solution Approach 1:
The printing apparatus proactively transmits support information for standard print functions to the print server in advance (at registration or activation events), so that the information processing apparatus can determine compatibility before attempting to use the printer. This preliminary action eliminates the need for complex runtime detection and improves user convenience.
Solution Approach 2:
The printing apparatus autonomously manages and transmits its own capability information (standard print function support) to the print server without requiring manual configuration or complex interactions. The apparatus self-describes its capabilities through automatic attribute information transmission at registration or activation events.
2Reliability
If the printing apparatus continuously monitors and transmits attribute information changes, then the information processing apparatus can always access accurate printer capabilities, but the communication overhead and processing load increase
Solution Approach 1:
Instead of continuous monitoring, the printing apparatus transmits attribute information changes proactively at specific trigger events (registration completion, activation, configuration changes). This event-driven approach ensures accurate information is transmitted when needed while avoiding unnecessary continuous communication overhead.
Solution Approach 2:
The system uses event-driven periodic action where attribute information is transmitted at discrete meaningful moments (registration, activation, configuration changes) rather than continuously. This maintains reliability by updating information at critical junctures while minimizing communication overhead through event-based timing.
Data Source
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AI summary
A printing apparatus includes a remote printing unit for executing printing in accordance with a print job transmitted from a print server via a wide area network, a local printing unit for executing printing in accordance with a print job transmitted from an information processing apparatus connected to a same network as the printing apparatus, and a transmission unit for transmitting, to the print server, support information indicating that the printing apparatus supports a standard print function included as standard in an operating system of the information processing apparatus. The transmission means transmits the support information to the print server in response to at least one of following events registration of the printing apparatus with the print server is completed; the printing apparatus is activated in a state in which the printing apparatus is registered with the print server; a function of performing printing in accordance with a print job transmitted from the print server is changed from a disabled state to an enabled state; it is set to transmit the support information to the print server; configuration information of the printing apparatus has changed; and a state of the printing apparatus has changed.