Reading Member Temperature Stabilization in Image Scanners
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Solution Overview
Problem
Existing image reading apparatuses face challenges in quickly stabilizing the temperature of imaging members after power is supplied, leading to delayed calibration and shading correction processes, which affect reading accuracy and efficiency.
Innovation Solution
Incorporating a heating control section that heats the imaging member during a preset period when power is supplied, using a drive voltage to rapidly stabilize the temperature and enable immediate calibration and shading correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the imaging member is heated during a preset period when power is supplied, then the temperature stabilization time is reduced and calibration can be performed immediately, but the energy consumption increases
Solution Approach 1:
The heating control section performs preliminary heating of the imaging member during a preset period immediately after power is supplied. This preliminary action stabilizes the temperature before calibration is needed, eliminating the waiting time that would otherwise be required for natural temperature stabilization.
Solution Approach 2:
The system changes the temperature parameter of the imaging member by applying heat during the preset period. By controlling the heating duration and intensity, the system optimizes the balance between rapid temperature stabilization and energy consumption, enabling calibration to proceed immediately after the preset period expires.
2Productivity
If the imaging member temperature is not stabilized, then the calibration and shading correction processes are delayed, but heating the imaging member increases power consumption
Solution Approach 1:
The system performs preliminary heating of the imaging member during a preset period immediately after power is supplied. This preliminary action stabilizes the temperature before calibration is needed, eliminating the waiting time that would otherwise be required for natural temperature stabilization.
Solution Approach 2:
The control section manages power supply to the imaging member by copying the main power supply timing. When the main power supply is turned on, the imaging member power supply is also turned on and heated during a preset period, ensuring temperature stabilization is synchronized with the overall system startup.
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 approach reduces the time required for calibration and improves reading accuracy by quickly stabilizing the imaging member temperature, allowing for immediate and high-precision shading correction without the need for prolonged waiting periods.
Implementation Method 1
a heating control section that heats the reading member during a preset period when power is supplied from a state in which power is not supplied
Data Source
AI summary
Provided is an image reading apparatus including a reading member that reads a document on which an image is recorded, a calibration process section that performs a shading process to correct unevenness in brightness based on a result acquired in such a way that the reading member reads a preset color, and a heating control section that heats the reading member during a preset period when power is supplied from a state in which power is not supplied.