Fixing Device Cooling Timing for Timed Removal
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Solution Overview
Problem
Conventional image forming apparatuses require users to be near the apparatus main body to initiate cooling of the fixing device, leading to inconvenient timing and prolonged waiting times for removal due to the need for manual intervention.
Innovation Solution
An image forming apparatus with a controller that sets predetermined cooling timings for the fixing device, allowing it to be detached at desired times by automatically controlling the cooling process based on user input, including options for power-on, specified dates, and job completion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cooling instruction is given via operation acceptor, then the fixing device can be cooled, but the user must be in the vicinity of the apparatus main body and cannot remove the fixing device at desired timing
Solution Approach 1:
The controller automatically starts cooling the fixing device at predetermined timing (when a copy sheet is fed or a print job is completed) without requiring user intervention. This preliminary action allows the fixing device to be cooled in advance, enabling removal at desired timing without user presence near the apparatus main body.
2Temperature
If cooling is initiated by user instruction, then the fixing device temperature can be reduced, but a predetermined time must elapse before the fixing device can be removed
Solution Approach 1:
The cooling control timing is made dynamic based on apparatus operation states. The controller determines cooling start timing adaptively - either when a copy sheet is fed or when a print job is completed - allowing the cooling process to be optimized according to actual usage patterns, thereby reducing unnecessary waiting time.
3Temperature
If the fixing device is cooled by cooling fan, then the temperature can be reduced for safe removal, but the cooling process requires manual initiation and monitoring
Solution Approach 1:
The system performs self-service cooling control by automatically determining when cooling should start based on apparatus operation states (copy sheet feeding or print job completion). The controller autonomously activates the cooling fan without requiring user initiation, monitoring, or intervention, thereby increasing automation and convenience.
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 the fixing device to be removed at user-defined times with minimal waiting, enhancing convenience and efficiency by automating the cooling process.
Implementation Method 1
a cooling fan which cools the fixing device
Data Source
AI summary
An image forming apparatus includes: an apparatus main body to which a fixing device that thermally fixes a toner image to a recording medium is detachably attached; and one or more controllers that control the apparatus main body, wherein the controllers include a setter that sets predetermined timing as timing at which the fixing device is cooled detachably from the apparatus main body.