Image Forming Apparatus Calibration Mode Guidance
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Solution Overview
Problem
Users face confusion when performing calibration in image forming apparatuses, as they are unsure whether to use the auto document feeder (ADF) or the platen.
Innovation Solution
The image forming apparatus includes a controller that guides the user through the calibration process by forming and reading test images on both the platen and the ADF, ensuring that the user knows where to place the test chart without confusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image forming apparatus provides both ADF and platen for reading test charts, then the versatility and ease of operation are improved, but the user confusion and operational clarity deteriorate
Solution Approach 1:
The patent uses visual indicators (lights or displays) to show the current reading mode status. When ADF reading is active, one indicator is illuminated; when platen reading is active, another indicator is illuminated. This visual feedback system helps users understand which reading method is currently selected, reducing confusion while maintaining both reading options.
Solution Approach 2:
The system provides feedback to the user about the current reading mode through visual indicators and automatic mode switching based on detected test chart positions. This feedback mechanism ensures users know which reading method is active and reduces operational confusion by clearly indicating the system state.
2Ease of operation
If the controller automatically determines reading mode based on test chart position, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The system automatically detects the position of the test chart and self-determines the appropriate reading mode without requiring user input. The sensor detects whether the test chart is on the platen or in the ADF, and the controller automatically selects the corresponding reading mode, making the system self-serve and reducing user workload.
Solution Approach 2:
The system performs preliminary detection of test chart position before initiating the reading process. By detecting the test chart location in advance, the controller can pre-select the appropriate reading mode, avoiding the need for complex real-time decision-making during operation and simplifying the overall control logic.
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 user workload by clearly instructing the user on where to place the test chart during calibration, ensuring accurate and efficient calibration of the image forming apparatus.
Implementation Method 1
a sensor configured to detect a sheet on the tray
Implementation Method 2
a lamp provided to the feeder
Implementation Method 3
a reader configured to read the original placed on the platen and to read the original conveyed by the feeder
Data Source
AI summary
An image forming apparatus includes a platen on which an original is to be placed, a feeder configured to feed an original placed on a tray, a sensor configured to detect a sheet on the tray, a lamp provided to the feeder, a reader configured to read the original placed on the platen and to read the original conveyed by the feeder, an image forming unit configured to form an image on a sheet, and a controller. The controller is configured to control the image forming unit to form a first test image on a sheet, control the reader to read the first test image formed on the sheet placed on the platen, control a density of the image to be formed by the image forming unit based on a reading result of the first test image.