Image Forming Adjustment Using Stored Halftone Data
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Solution Overview
Problem
Conventional image forming apparatuses require repeated acquisition of halftone image data from a Digital Front End (DFE) for each adjustment processing, leading to prolonged execution times.
Innovation Solution
The image forming apparatus includes an acquisition processing portion to store adjustment halftone image data generated by the DFE, and a storage processing portion to store adjustment halftone image data for future use, allowing for reduced execution time by eliminating the need for repeated data acquisition during adjustment processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If adjustment halftone image data is acquired from the DFE for each adjustment processing, then the image forming portion can be adjusted based on accurate halftone image data, but the execution time of adjustment processing is prolonged
Solution Approach 1:
The patent applies preliminary action by acquiring and storing adjustment halftone image data from the DFE in advance, before actual adjustment processing is needed. The stored data is then reused across multiple adjustment operations, eliminating the need to repeatedly acquire data from the DFE. This resolves the contradiction by preparing the data beforehand (improving speed) while ensuring it is still used for accurate adjustments.
2Loss of time
If adjustment halftone image data is stored in a predetermined storage portion, then repeated data acquisition is eliminated and execution time is shortened, but additional storage components and data management complexity are introduced
Solution Approach 1:
The patent applies universality by making the storage portion serve multiple functions: it stores adjustment halftone image data for reuse, acts as a buffer between the DFE and image forming portion, and enables both rapid adjustment processing and accurate image formation. This multi-functional approach justifies the added storage component by demonstrating its broad utility across different operations.
Data Source
AI summary
An image forming apparatus is communicably connected to an image generation apparatus which generates halftone image data and includes an image forming portion, an adjustment processing portion, an acquisition processing portion, and a storage processing portion. The image forming portion forms an image based on the halftone image data. The adjustment processing portion executes adjustment processing for adjusting the image forming portion based on a result of reading an adjustment image formed by the image forming portion. The acquisition processing portion acquires adjustment halftone image data that is generated by the image generation apparatus based on original data corresponding to the adjustment image. The storage processing portion stores the adjustment halftone image data acquired by the acquisition processing portion in a storage portion.