Multifunction Printer Display Control for Cassette State
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Solution Overview
Problem
In systems with a multifunction printer that displays a browser screen designated by an external server, the external server cannot sense changes in the paper sheet cassette state caused by user operations, leading to potential failure in displaying the appropriate screen for paper attribute setting.
Innovation Solution
An electronic apparatus that communicates with an external server, featuring a state change sensing section to detect user operations on the mechanism section, allowing the display control section to switch from an external server-driven display process to an internal server-driven process, ensuring the display section shows the correct screen based on the mechanism section's state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display section displays a browser screen from an external server, then the system can provide web-based functionality and information display, but the external server cannot sense changes in the paper sheet cassette state caused by user operations, leading to failure in displaying the appropriate screen for paper attribute setting
Solution Approach 1:
The patent introduces a state change sensing section as an intermediary component that detects changes in the paper sheet cassette state and triggers appropriate screen transitions. This mediator bridges the gap between the external server's display capability and the need for responsive feedback to user operations, ensuring that the display section shows the correct screen even when the external server cannot directly sense physical state changes
Solution Approach 2:
The system implements a feedback mechanism where the state change sensing section continuously monitors the paper sheet cassette state and provides feedback signals to the display control section. This feedback loop ensures that when users perform operations on the paper sheet cassette, the system detects these changes and automatically transitions to the appropriate screen, maintaining reliability of screen display accuracy
2Device complexity
If the system relies on the external server to monitor and trigger screen changes, then the architecture remains simple and centralized, but the timing and accuracy of displaying screens for paper attribute setting cannot be ensured when the paper sheet cassette state changes
Solution Approach 1:
The patent implements preliminary action by having the state change sensing section proactively detect paper sheet cassette state changes before the external server can respond. This advance detection ensures that the display control section can immediately transition to the appropriate screen without waiting for external server processing, eliminating timing delays while maintaining a relatively simple system architecture
Data Source
AI summary
A second display control section of a multifunction printer switches from a first display process in which an external browser screen is displayed on a display section to a second display process in which an internal browser screen is displayed on the display section, and displays the internal browser screen on the display section according to the state of a paper feeding cassette and a cover member which are operated, when a change in state of the paper feeding cassette and the cover member is sensed by an event generation section while executing the first display process.