Image Forming Device Protocol Selection

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Solution Overview

Problem

Users face increased operational burdens when trying to select and establish communication with a printing device using a desired protocol, as existing systems do not allow for protocol selection based on device information, forcing users to manually choose secure protocols like HTTPS.

Innovation Solution

The image forming device determines the destination for print data and specifies destination information to the client, allowing the client to send print data using the desired protocol, such as HTTPS for security, reducing user operations by allowing protocol selection and change without additional user intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a predetermined protocol is used for print data transmission, then communication simplicity is maintained, but protocol flexibility and user choice are lost

Engineering Contradiction:
Improvecommunication simplicityVSAvoidprotocol flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic protocol selection where the image forming device determines the communication protocol based on the type of data to be transmitted. Confidential data automatically triggers secure protocols (HTTPS/FTP), while ordinary data uses simpler protocols (HTTP/FTP), allowing the system to adapt its communication method dynamically rather than being fixed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes communication parameters (protocol type) based on data classification. The image forming device analyzes the data type and automatically adjusts protocol parameters, switching between secure and non-secure communication modes without requiring user intervention

Inventive Principle:
Principle #35Parameter changes

2Reliability

If secure protocols like HTTPS are used for confidential data, then security is improved, but user operation complexity increases

Engineering Contradiction:
ImprovesecurityVSAvoiduser operation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The image forming device performs self-service by automatically determining whether data is confidential and selecting the appropriate protocol without user input. The device autonomously classifies data and initiates secure or non-secure communication, eliminating the need for users to manually configure security settings

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The image forming device acts as an intermediary that mediates between the user's printing request and the communication protocol selection. It intercepts the print data, analyzes its confidentiality, and automatically chooses the appropriate protocol, shielding the user from complex security decisions

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If device information is used only for device selection, then selection accuracy is maintained, but protocol determination capability is lost

Engineering Contradiction:
Improvedevice selection accuracyVSAvoidprotocol determination capability
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The image forming device uses its identification information for multiple functions: both device selection and protocol determination. The same device information that identifies the printer also indicates its protocol capabilities and data handling characteristics, allowing the system to serve multiple purposes with a single information set

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP1975775B1Image forming device, and method and computer program applicable to the same
Publication Date: 2018.08.08 BROTHER KOGYO KK
  • EP1975775B1 patent drawingFigure 1
  • EP1975775B1 patent drawingFigure 2
  • EP1975775B1 patent drawingFigure 3

AI summary

An image forming device, which is configured to receive print data from a client via a network and process the print data, includes a print request receiving means configured to receive a print request transmitted by the client with a protocol through a port of the image forming device, a protocol specifying means configured to specify a kind of the protocol used in the transmission of the print request, a destination information creating means configured to create destination information representing a destination to which the print data are to be sent, based on the protocol of the kind specified by the protocol specifying means, and a destination information sending means configured to send the destination information to the client with the protocol of the specified kind.