Dual Heater Synchronization for Image Forming Apparatus
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Solution Overview
Problem
Existing image forming apparatuses face challenges in reducing the first copy out time while performing various post-image forming processes, such as lamination and case binding, due to the need for precise temperature control and synchronization of image forming and post-processing operations.
Innovation Solution
The image forming apparatus incorporates two heaters, one for the image forming process and another for post-processing, with processing circuitry that measures and controls the temperatures of both heaters to determine the optimal start time for the image forming process, ensuring synchronization with the post-processing preparation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the image forming process starts immediately after image formation, then the first copy out time is shortened, but the post-processing unit cannot perform processing because it is not yet ready
Solution Approach 1:
The post-processing unit performs necessary preparations (such as heating the second heater to the required temperature) before the image forming process completes. This preliminary action ensures that when the image is ready for post-processing, the post-processing unit is already ready to receive and process the sheet immediately, thereby shortening the first copy out time while maintaining reliability.
2Loss of time
If the post-processing unit prepares in advance, then the first copy out time is shortened, but power is consumed unnecessarily if the image forming process is delayed
Solution Approach 1:
The control unit continuously monitors the temperature of the second heater and the status of the image forming process. Based on this feedback, the control unit dynamically adjusts the heating operation of the second heater, activating it only when needed and deactivating it when not required, thereby shortening the first copy out time while avoiding unnecessary power consumption.
3Productivity
If multiple processes are synchronized, then productivity is improved, but the control system becomes more complex
Solution Approach 1:
The control unit is designed to perform multiple functions: it controls the image forming process, monitors the temperature of the second heater, determines readiness of the post-processing unit, and coordinates the timing between image forming and post-processing. This multi-functional design improves productivity through synchronized processes while minimizing the increase in control system complexity by consolidating control functions into a single unit.
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 effectively shortens the first copy out time by synchronizing the image forming and post-processing operations, while also reducing unnecessary power consumption through precise temperature control.
Implementation Method 1
a first heater (2051) used in an image forming process
Implementation Method 2
a second heater (2101) used in a processing process after the image forming process
Implementation Method 3
a first temperature measurement unit (314) that measures a temperature of the first heater (2051), a second temperature measurement unit (324) that measures a temperature of the second heater (2101)
Data Source
AI summary
An image forming apparatus includes a first heater, a second heater, and processing circuitry. The first heater is used in an image forming process. The second heater is used in a processing process after the image forming process. The processing circuitry is to measure a temperature of the first heater, measure a temperature of the second heater, and control start of the image forming process based on a first measured temperature of the first heater and a second measured temperature of the second heater.