Paddle Device Paper Alignment Curl Prevention
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Solution Overview
Problem
Print medium post-processing devices face challenges in aligning and processing printing papers due to curling issues, which limit the number of papers that can be loaded and lead to errors in post-processing jobs, especially in devices with limited space.
Innovation Solution
The implementation of a paddle device and stapler device controlled by a processor that moves the printing papers in a specific direction to prevent curling, with the paddle device normally rotating to align the papers and reversely rotating to hold or staple them, ensuring proper alignment and preventing curling during the alignment procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If printing papers are loaded in limited space for post-processing, then device capacity is improved, but paper curling occurs causing alignment errors
Solution Approach 1:
The paddle device performs preliminary alignment action on the printing papers before they are stacked in the limited space. By normally rotating the paddle to align papers in the loading direction and then reversely rotating to hold them, the system prevents curling before it occurs, enabling reliable post-processing of multiple papers in constrained space
2Device complexity
If printing papers are aligned in limited space, then device compactness is improved, but paper curling increases causing post-processing errors
Solution Approach 1:
The paddle device performs preliminary alignment and anti-curling action before papers are stacked in the limited device space. The normal rotation aligns papers while the reverse rotation holds them flat, preventing curling before post-processing operations begin, thus maintaining reliability in a compact configuration
Solution Approach 2:
The paddle device acts as an intermediary mechanism between the paper supply and the post-processing units. It provides a controlled environment for paper alignment and curl prevention before papers enter the stapler or puncher, enabling accurate post-processing in limited space
Data Source
AI summary
An image forming apparatus is provided. The image forming apparatus includes a printing engine, a paddle device, a stapler device, and a processor. The printing engine is to form an image on a printing paper. The paddle device is to move the printing paper ejected from the printing engine in a moving direction to align a first end of the printing paper. The stapler device is to staple the align printing paper. The processor is to control the paddle device and the stapler device to move a second end of the aligned printing paper in an opposite direction to the moving direction when the first end of the printing paper is aligned.