Fixing Unit Cooling Time Prediction for Faster Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional image forming apparatuses do not provide timely notification of the time required for a high-temperature fixing device to cool down, leading to unnecessary waiting times and potential delays in replacement work.
Innovation Solution
The apparatus includes a temperature measurer and controller that estimate and display the time needed for the fixing unit to cool down, allowing users to plan replacement work efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fixing device is operated at high temperature for printing, then printing quality is improved, but the time required for cooling before replacement increases
Solution Approach 1:
The system performs preliminary cooling action automatically after printing operation stops, and provides prediction information in advance to the user. The cooling operation starts automatically when the operation unit detects that printing has stopped, and the prediction information display unit shows the predicted cooling completion time before the user needs to replace the fixing device, allowing the user to plan the replacement timing in advance.
2Loss of time
If the user constantly monitors the fixing device temperature, then replacement timing is optimized, but user convenience deteriorates
Solution Approach 1:
The system provides continuous feedback to the user through the prediction information display unit, which shows the predicted time until cooling completion. This feedback mechanism eliminates the need for the user to constantly monitor temperature manually, as the system automatically tracks and communicates the cooling status and predicted availability time for replacement.
Solution Approach 2:
The operation unit automatically detects when printing has stopped and initiates the cooling operation without user intervention. The system serves itself by automatically managing the cooling process and providing information to the user, rather than requiring the user to manually check temperature and decide when to replace the fixing device.
3Reliability
If multiple fixing devices are prepared for different sheet widths, then print quality is improved, but device complexity increases
Solution Approach 1:
The system makes a single fixing device universal by enabling it to handle multiple sheet widths (A3, A4, A5) through automatic adjustment of fixing conditions. The control unit adjusts temperature, pressure, and other parameters based on the detected sheet width, allowing one fixing device to replace multiple dedicated devices while maintaining print quality across different media types.
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
This solution reduces the overall time required for fixing device replacement by providing advance notification of cooling completion, ensuring timely and efficient maintenance.
Implementation Method 1
a temperature measurer that measures a temperature of the fixing unit or in the vicinity thereof
Data Source
AI summary
An image forming apparatus comprises one or more controllers, a display, a detachable fixing unit, and a temperature measurer that measures a temperature of the fixing unit or in the vicinity thereof, wherein the one or more controllers display, on the display, prediction information related to finishing of a cooling operation of cooling the mounted fixing unit, based on a measurement result by the temperature measurer.