Remote MFP File Access Using Centralized Authentication
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Solution Overview
Problem
Multifunction printers (MFPs) typically do not allow access to locally stored files on another MFP, and uploading large files to a cloud server is inefficient and insecure.
Innovation Solution
A system and method enabling a first MFP to access files stored on one or more second MFPs via a remote server, using authentication protocols like single sign-on (SSO) and file transfer protocols (FTP/SFTP) to securely share files over a network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If files are uploaded to a cloud server for remote access, then file accessibility is improved, but security and storage efficiency deteriorate
Solution Approach 1:
The patent introduces a file server as an intermediary component that mediates between MFPs and cloud servers. The file server caches file data locally, allowing MFPs to access remote files without direct cloud connectivity. This intermediary approach maintains security by keeping sensitive file data within the local network while still enabling remote access functionality.
2Ease of operation
If large files are uploaded to cloud storage for remote access, then file accessibility is improved, but network bandwidth and storage resources are wasted
Solution Approach 1:
The file server performs preliminary actions by caching file data locally before it is needed by MFPs. When files are made available on the file server, they are stored in the cache memory, preparing them for future access. This eliminates the need to upload large files to cloud storage when they are not immediately needed, conserving network bandwidth and cloud storage resources.
3Adaptability or versatility
If MFPs can access files on other MFPs directly, then file sharing capability is improved, but system complexity and authentication management worsen
Solution Approach 1:
The file server provides a universal interface for file access that works with multiple MFPs simultaneously. Instead of implementing complex peer-to-peer authentication between each pair of MFPs, the file server handles authentication and file management centrally. This multi-functional approach allows any authenticated MFP to access files from any other MFP through the file server without increasing individual device complexity.
Data Source
AI summary
A method for accessing a remote multifunction printer, the method includes receiving, by a first multifunction printer, an authenticator from a user; forwarding, by the first multifunction printer, the authenticator received to a remote server with a request to authenticate the user on the first multifunction printer and one or more second multifunction printers, the remote server configured to be in communication with the first multifunction printer and the one or more second multifunction printers; forwarding, by the first multifunction printer, a request for one or more files on the one or more second multifunction printers via a file transfer protocol, and wherein the user has been authenticated on the first multifunction printer and the one or more second multifunction printers by the remote server via a remote desktop protocol; and receiving, by the first multifunction printer, the one or more files from the one or more second multifunction printers.