Printer Scraper Cleaning Device with Movable Member
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Solution Overview
Problem
Current inkjet printer scraper cleaning structures are fixed and cannot effectively contact the scraper in its moving direction, leading to ink re-attachment and nozzle pollution, which affects printing quality.
Innovation Solution
A printer clean device with a moveable member that moves away from the scraper when lifted and contacts it when dropped, using a collaborative structural design of the ink stack, scraper, and transmission assemblies to prevent ink pollution and maintain scraper cleanliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed hard sheet is used for scraper cleaning, then the structure is simple, but the ink removed from the scraper attaches on the scraper again and pollutes the nozzles
Solution Approach 1:
The patent applies the dynamics principle by replacing the fixed hard sheet with a movable member that can dynamically change its position and contact state with the scraper. The movable member includes an elastic element that enables it to move closer to or farther from the scraper based on the scraper's position, ensuring effective cleaning contact while preventing ink re-attachment.
Solution Approach 2:
The patent applies parameter changes by modifying the physical state and position parameters of the cleaning element. The movable member changes its distance parameter from the scraper based on the scraper's movement, transitioning between contact and non-contact states to effectively clean the scraper without causing ink re-attachment.
2Reliability
If the movable member contacts the scraper continuously, then cleaning is effective, but the end portion gets polluted by ink attached on the movable member
Solution Approach 1:
The patent applies periodic action by designing the movable member to periodically contact and separate from the scraper during the scraper's up-and-down movement. The elastic element enables the movable member to contact the scraper when it needs cleaning and separate when the scraper moves away, preventing ink pollution of the end portion while maintaining cleaning effectiveness.
3Productivity
If the scraper assembly is lifted and extended, then cleaning operation is performed, but the end portion moves away from the scraper causing pollution
Solution Approach 1:
The patent applies feedback by designing the movable member to respond to the scraper assembly's position through the elastic element. When the scraper assembly is lifted and extended, the movable member automatically adjusts its position based on the elastic force, maintaining appropriate contact to prevent ink pollution while ensuring cleaning operation effectiveness.
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 effective cleaning of nozzles by preventing ink re-attachment on the scraper, simplifying production, reducing device size, and improving cleaning efficiency while maintaining scraper cleanliness.
Implementation Method 1
The first movable member includes an elastic element, a sheet body, an end portion and at least one extending portion. The elastic element is connected to a wall of the second accommodation groove. The sheet body is connected to the elastic element and is adjacent to the scraper.
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
The printer clean device (1) includes an inner case (2), a scraper assembly (4) and a first movable member (5). The scraper assembly (4) is disposed in the inner case (2) and includes a scraper (41), a base (42) and a protrusion (43). The scraper (41) and the protrusion (43) are disposed on the base (42). The first movable member (5) includes an elastic element (51), a sheet body (52), an end portion (53) and an extending portion (54). The elastic element (51) is disposed in the inner case (2). The sheet body (52) is connected to the elastic element (51) and is adjacent to the scraper (41). The end portion (53) is an end of the sheet body (52). The extending portion (54) is extended from the sheet body (52). When the scraper assembly (4) is lifted, the protrusion (43) pushes against the first movable member (5) and makes the end portion (53) away from the scraper (41). When the scraper assembly (4) is dropped, the protrusion (43) pushes against the first movable member (5) and makes the end portion (53) contact with the scraper (41).