Printing Apparatus Transport Belt Static Elimination and Cleaning
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Solution Overview
Problem
Existing printing apparatuses with electrostatically adsorbed transport belts face complexity due to multiple cleaning sections required for removing adhering materials, which can reduce printing quality and increase operational complexity.
Innovation Solution
A printing apparatus configuration that includes a static eliminating section and a wiping section, where the static eliminating section, longer than the wiping section, removes adhering materials from the transport belt while also eliminating electric charge from the printing surface, thereby increasing adsorption force and minimizing complexity by combining functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple cleaning sections are provided around the transport belt to remove adhering material, then the transport belt cleaning effectiveness is improved, but the device complexity increases
Solution Approach 1:
The static eliminating section is designed to perform dual functions: eliminating static electricity from the medium surface and cleaning adhering material from the transport belt through its brush elements. This multi-functionality reduces the need for separate dedicated cleaning sections while maintaining effective cleaning performance.
Solution Approach 2:
The patent combines the static eliminating function and the cleaning function into a single integrated section. The brush elements of the static eliminating section simultaneously contact both the medium surface (for static elimination) and the transport belt (for cleaning), merging two separate functions into one component.
2Stability of the object's composition
If a separate structure for eliminating electric charge from the printing surface is provided in addition to cleaning structures, then the adsorption force stability is improved, but the complexity around the transport belt increases
Solution Approach 1:
The static eliminating section serves as a multi-functional component that simultaneously addresses both static electricity elimination and transport belt cleaning needs, eliminating the requirement for separate dedicated structures for each function while maintaining adsorption force stability.
Solution Approach 2:
By integrating the static eliminating brushes to contact both the medium and transport belt simultaneously, the patent merges the static elimination function with the cleaning function, reducing structural complexity while achieving both objectives.
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 configuration effectively removes adhering materials from the transport belt, stabilizes the adsorption force, and reduces operational complexity by integrating the static eliminating section's functionality into the wiping process, enhancing printing quality and accuracy.
Implementation Method 1
an endless transport belt that electrostatically adsorbs a medium on an outer surface of the transport belt
Implementation Method 2
The static eliminating section, which is disposed upstream from the print head in the transport direction, makes contact with the outer surface of the transport belt and the printing surface of the medium electrostatically adsorbed on the outer surface of the transport belt and eliminates electric charge from the printing surface of the medium
Implementation Method 3
The wiping section, which is disposed at a side opposite the print head, as viewed from the static eliminating section in a direction of rotation of the transport belt, wipes the outer surface of the transport belt
Data Source
AI summary
A printing apparatus includes a transport belt, a print head, a static eliminating section, and a wiping section. The transport belt electrostatically adsorbs a medium on an outer surface thereof and transports the medium in a transport direction.