Conveyance Belt Positioning Reference Member for Inkjet Printers
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Solution Overview
Problem
In inkjet recording apparatuses, maintaining the precise gap between the recording head and the conveyance belt is crucial for high-quality image formation, but existing technologies face challenges in accurately exchanging and positioning the conveyance belt, leading to potential image degradation due to extension, friction, and damage.
Innovation Solution
The introduction of an adjustment plate at a frame member to adjust the conveyance belt's position, combined with a plane jig for standard surface formation, allows for precise positioning of the guide rod and rail, enabling easy maintenance and high precision in rearranging or exchanging the conveyance belt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the conveyance belt is exchanged or rearranged, then maintenance is performed, but the positioning precision of the conveyance belt deteriorates
Solution Approach 1:
The patent introduces a conveyance belt positioning reference member as an intermediary element between the conveyance belt and the main body. This reference member provides a standardized interface that ensures precise positioning when the conveyance belt is exchanged or rearranged, eliminating the need for complex realignment procedures while maintaining high positioning accuracy.
Solution Approach 2:
The positioning reference member is pre-installed on the main body with precisely positioned reference surfaces before the conveyance belt exchange operation. This preliminary preparation ensures that when the conveyance belt is later exchanged, the positioning can be quickly and accurately performed without requiring complex measurement and adjustment procedures during the maintenance operation.
2Device complexity
If the gap between the recording head and conveyance belt is not fixed, then the structure is simpler, but image quality deteriorates due to positioning errors
Solution Approach 1:
The conveyance belt positioning reference member acts as an intermediary that indirectly controls the gap between the recording head and conveyance belt. By precisely positioning the conveyance belt relative to the main body through this reference member, the gap is effectively fixed without requiring complex mechanical fixation structures, thus maintaining both simplicity and precision.
3Adaptability or versatility
If the conveyance belt is allowed to extend or friction occurs, then the belt is more flexible, but image quality deteriorates
Solution Approach 1:
The positioning reference member with its precisely positioned reference surfaces serves as an intermediary that constrains the conveyance belt position. This allows the belt to maintain necessary flexibility for its function while preventing extension and friction-induced positioning errors by providing a stable, reproducible positioning interface that ensures consistent gap maintenance during operation.
Data Source
AI summary
An image forming apparatus includes a carriage where a recording head configured to jet a liquid drop of recording liquid is provided, and a conveyance belt configured to convey a recording medium. The carriage is moved in a main scanning direction along a guide member and the recording medium is sent in a sub-scanning direction by the conveyance belt so that an image is formed on the recording medium. An adjustment plate configured to adjust an arrangement position of the conveyance belt is provided at a frame member configured to arrange the conveyance belt unit including the conveyance belt.