Transport Roller Manuscript Discharge Control
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Solution Overview
Problem
Image forming apparatuses face issues with manuscript damage when the reading process is ceased, as the manuscript is not properly discharged from transport rollers, leading to potential breakage during user intervention.
Innovation Solution
An image forming apparatus with a transport roller system, manuscript sensor, and display controller that transitions screens to include a discharge designator when a manuscript is detected, allowing for controlled discharge without reading, ensuring safe removal of the manuscript from the transport rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the manuscript is interposed by the transport roller in response to manuscript detection, then the reading process can be initiated, but the manuscript may be damaged when the user pulls it out after reading cessation
Solution Approach 1:
The system performs preliminary action by automatically discharging the manuscript before the user attempts to pull it out. When the reading process is ceased, the control unit detects this state and automatically rotates the transport roller to discharge the manuscript, preventing the harmful situation where the user would otherwise pull the manuscript while it's still interposed by the rollers.
2Object-affected harmful factors
If the transport roller is rotated to discharge the manuscript after reading cessation, then manuscript damage is prevented, but the system complexity increases
Solution Approach 1:
The system implements self-service by automatically detecting when the reading process has ceased and autonomously discharging the manuscript without requiring additional user input or complex control logic. The control unit monitors the reading state and automatically activates the transport roller discharge function, making the system care for itself and eliminating the need for more complex manual discharge mechanisms.
3Device complexity
If no discharge designator is provided on the display, then the display interface is simpler, but the operability is reduced when manuscript discharge is needed
Solution Approach 1:
The display controller implements self-service by automatically switching to the second screen with the discharge designator when the manuscript is detected by the sensor. This automatic behavior eliminates the need for users to manually navigate through display options, maintaining simplicity while ensuring the discharge function is always accessible when needed.
Solution Approach 2:
The system uses feedback from the manuscript sensor to dynamically control the display content. When the sensor detects the manuscript, the display controller responds by switching to the appropriate screen showing the discharge designator, creating a feedback loop that adapts the interface to the current operational state and improves ease of operation.
Data Source
AI summary
An image forming apparatus includes a transport roller; a reading mechanism; a manuscript sensor configured to detect the manuscript; a transport controller which controls the transport roller; a display unit; and a display controller. The display controller is configured such that the display unit is allowed to display a first screen in a case that the manuscript is not detected by the manuscript sensor; and the display unit is allowed to display a second screen indicating a discharge designator to discharge the manuscript from the image forming apparatus in place of the first screen indicating no discharge designator in a case that the manuscript is detected by the manuscript sensor. The transport controller is configured such that the manuscript interposed by the transport roller is discharged without reading the manuscript by the reading mechanism in a case that an input with respect to the discharge designator is accepted.