Adjustment Pattern Layout to Prevent Overlap in Image Forming
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Solution Overview
Problem
The accuracy of reading adjustment patterns is degraded when they overlap with content images in the peripheral region of a sheet, leading to inaccurate setting of image forming conditions.
Innovation Solution
An image forming system that forms adjustment patterns outside the trimming region of a sheet and includes a reader to optically read the formed images, with a processor adjusting the image forming conditions based on the read data, and a display that indicates overlapping regions to prevent inaccuracies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If adjustment patterns are formed in the peripheral region of a sheet, then the image forming condition can be adjusted, but the reading accuracy of adjustment patterns is degraded when content images overlap with them
Solution Approach 1:
The system performs preliminary detection of overlap between content images and adjustment patterns before reading the adjustment patterns. The control unit detects whether a content image overlaps with an adjustment pattern in the peripheral region, and if overlap is detected, prompts the user to rearrange the content image, thereby preventing reading accuracy degradation before it occurs.
Solution Approach 2:
The system provides feedback to the user about the overlap status between content images and adjustment patterns. The control unit detects overlap and outputs a prompt to the user via the operation panel, enabling the user to rearrange the content image. This feedback mechanism allows the system to maintain high reading accuracy while preserving user flexibility in content arrangement.
2Reliability
If adjustment patterns are placed in the peripheral region, then they can be read for adjusting image forming conditions, but they may overlap with content images intended for management or post-processing
Solution Approach 1:
The control unit performs preliminary detection of overlap between content images and adjustment patterns before the reading process. By detecting the overlap in advance and prompting the user to rearrange the content image, the system prevents the harmful effect of overlap on reading accuracy before it occurs.
Solution Approach 2:
The control unit acts as an intermediary between the content image arrangement and the adjustment pattern reading process. It detects potential conflicts and mediates by prompting the user to rearrange content images, thereby preventing the harmful overlap from occurring and ensuring reliable adjustment pattern reading.
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
Ensures high accuracy in adjusting image forming conditions by preventing overlap between content images and adjustment patterns, thereby enhancing the precision of image formation.
Implementation Method 1
a reader configured to optically read the sheet on which the image has been formed by the image forming unit
Data Source
AI summary
An image forming system includes: an image forming unit configured to form an image on a sheet. The image forming unit forms a first image inside a trimming region of a sheet, and forms a second image and an adjustment pattern outside the trimming region of the sheet, the adjustment pattern being for adjusting an image forming condition. Execution of instructions causes one or more processors to adjust the image forming condition at a time of image formation by the image forming unit, and, in a case where a formation region of the second image and at least a part of a formation region of the adjustment pattern overlap, control a display to display information indicating that the formation region of the second image and the formation region of the adjustment pattern overlap.