Image Forming Apparatus With Active Ink Container Cover Control
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Solution Overview
Problem
Existing image forming apparatuses stop printing unnecessarily when a non-active recording agent container cover is opened during printing, reducing productivity due to the need for temporary halts during replacement.
Innovation Solution
An image forming apparatus with a controller that differentiates between active and inactive recording agent containers based on cover status and usage, allowing continued printing by switching to an alternative container if available and notifying the user, or stopping printing only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the printing stop function is implemented to stop printing when any container cover is opened during printing, then the reliability of preventing recording agent leakage is improved, but the productivity is reduced due to unnecessary printing halts
Solution Approach 1:
The patent applies local quality by differentiating between container covers based on their specific functions. Instead of treating all container covers uniformly, the system identifies which cover corresponds to the currently active recording agent container versus inactive containers. This localized differentiation allows the system to stop printing only when the active container's cover is opened, while ignoring cover openings of inactive containers, thus maintaining printing continuity and improving productivity without compromising leakage prevention.
2Reliability
If the printing stop function stops printing when a non-active container cover is opened, then the safety against recording agent leakage is improved, but the loss of time increases due to unnecessary printing halts
Solution Approach 1:
The patent implements feedback by continuously monitoring the opening/closing state of container covers and the usage status of recording agent containers. The controller receives feedback from sensors detecting cover states and cross-references this with information about which container is currently active. Based on this feedback loop, the system intelligently determines whether to stop printing, thereby preventing unnecessary halts when inactive container covers are opened while maintaining safety when active container covers are opened.
3Reliability
If the controller stops printing when any container cover is opened, then the reliability of container safety is improved, but the ease of operation deteriorates due to frequent printing interruptions
Solution Approach 1:
The patent applies segmentation by dividing the container cover monitoring function into distinct segments. Instead of treating all container covers as a single group, the system segments them into active and inactive categories based on which container is currently being used for printing. This segmentation allows the control logic to apply different responses to different cover types, maintaining container safety for active containers while allowing operational flexibility for inactive containers.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables seamless replacement of recording agent containers without halting printing, maintaining productivity by intelligently managing container usage through sensor detection and controller logic.
Implementation Method 1
a cover opening/closing sensor that detects opening and closing of the container cover
Data Source
AI summary
An image forming apparatus on which a plurality of ink containers containing ink of the same color can be mounted includes container loading devices that are detachably loaded with the ink containers, a container cover that is provided in each of the container loading devices and opens and closes a loading port of the container loading device, and a controller that executes a stop process for stopping use of the ink container to stop printing when the ink container loaded in the container loading device with the container cover open is in use when the container cover is opened during printing, but does not execute the stop process not to stop the printing when the ink container loaded in the container loading device with the container cover open is not in use.