Display Controller Content Switching for Printer State Management
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Solution Overview
Problem
Digital signage systems often cause user discomfort and unfavorable impressions when a printer enters a printing disabled state, as users may misunderstand the printing enabled state, leading to prolonged waiting and decreased customer appeal.
Innovation Solution
An image content display system with a display controller that switches between content groups, displaying printing enabled state information only when the printer is operational and hiding it during disabled states to prevent user expectations and discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display device continuously shows printing enabled state information, then users are informed about printing availability, but users may feel uncomfortable and have unfavorable impressions when the printer is actually in a printing disabled state
Solution Approach 1:
The display device dynamically changes the display content based on the printer's actual state. When the printer is in a printing disabled state, the display switches from showing printing enabled state information to showing printing disabled state information, ensuring the displayed information always reflects the current operational status and preventing user confusion
Solution Approach 2:
The display device receives feedback about the printer's operational state and adjusts its display accordingly. The control unit monitors the printer state and updates the display content to match the current status, ensuring accurate information is always presented to users
2Loss of information
If the display device switches content frequently to reflect printer state changes, then accurate printing status information is provided, but the system complexity increases
Solution Approach 1:
The patent extracts the display control logic into a separate control unit that independently manages the display content based on printer state. This separation simplifies the overall system architecture by dedicating a specific component to handle the complexity of state-dependent display management
Solution Approach 2:
The display content is dynamically adjusted based on printer operational state. The system transitions between different display modes (showing printing enabled information vs. printing disabled information) based on real-time printer status, ensuring accurate information delivery without requiring complex manual intervention
Data Source
AI summary
An image content display system includes: a display device; a display controller that displays image content on the display device while switching a plurality of sets of image content; and an image forming apparatus that prints image information associated with image content displayed on the display device, wherein the display controller includes a first acquiring unit that acquires image content of a first content group, a second acquiring unit that acquires image content of a second content group, a determining unit that determines whether or not the image forming apparatus is in a printing enabled state, and a display control unit that displays the image content of the first content group, and switches image content to be displayed on the display device from the image content of the first content group to the image content of the second content group.