Printing Apparatus Privacy Attribute Mapping for IPP Security
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Solution Overview
Problem
The existing printing systems using Internet Printing Protocol (IPP) face issues with mismatched privacy settings, leading to unsuitable security levels during printing, especially when using vendor drivers, as standard protocols like IPP do not allow for vendor-specific privacy settings, resulting in potential security mismatches.
Innovation Solution
A printing apparatus is designed with an identification unit to specify privacy attribute values, a response unit to handle capability inquiries, and an access control unit to enforce privacy settings based on the received print jobs, ensuring appropriate access control and security levels during IPP-based printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vendor drivers are used for printing, then privacy settings can be specified according to vendor-specific requirements, but the system loses compatibility with standard IPP-based printing without vendor drivers
Solution Approach 1:
The patent introduces a mapping mechanism that acts as an intermediary between vendor-specific privacy settings and IPP standard attributes. The printing apparatus includes a mapping unit that converts vendor driver privacy settings into corresponding IPP attributes, allowing both vendor-specific and standard IPP printing to coexist without requiring actual vendor drivers installed on client terminals
2Adaptability or versatility
If standard IPP protocol is used for printing, then vendor driver compatibility is improved, but privacy settings may not match the security level requirements of the printing apparatus
Solution Approach 1:
The patent dynamically changes IPP attribute parameters based on the printing apparatus's security level settings. The mapping unit adjusts which IPP attributes are requested and how they are interpreted according to the apparatus's privacy policy, ensuring that standard IPP printing adapts to vendor-specific security requirements without losing standard protocol compatibility
3Reliability
If vendor-specific privacy settings are enforced, then security level matching is improved, but the complexity of the printing system increases due to vendor driver requirements
Solution Approach 1:
The patent creates a virtual copy of vendor driver functionality within the printing apparatus itself. Instead of requiring actual vendor drivers on client terminals, the system implements an internal mapping mechanism that replicates vendor-specific privacy setting behavior, thereby maintaining security level matching while eliminating the need for complex vendor driver installations and reducing overall system complexity
Data Source
AI summary
When a printing apparatus receives a print request having an Internet Printing Protocol (IPP)-based format including a privacy attribute value from a client terminal, the printing apparatus performs access control on a print job based on a privacy attribute value of the print job.