Detachable Maintenance Unit for Compact Liquid Discharge Apparatus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing liquid discharge apparatuses face challenges in maintaining a compact design due to stationary suction devices, which hinder efficient maintenance operations and increase the apparatus's size.
Innovation Solution
A maintenance unit with a detachable design that includes a space forming portion to open nozzles and a depressurizing portion, allowing for suction cleaning and liquid collection, is integrated into the liquid discharge apparatus, enabling efficient maintenance without increasing the apparatus's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stationary suction device is provided in the housing to perform maintenance of the liquid ejecting portion, then maintenance operations can be performed, but the liquid discharge apparatus becomes large
Solution Approach 1:
The suction device is segmented from the main housing and integrated into a detachable maintenance unit that can be mounted only when needed. This separates the maintenance function from the permanent structure, allowing compact housing design while preserving maintenance capability through modular attachment.
Solution Approach 2:
The maintenance unit transitions from a stationary component to a dynamic, detachable module that can be mounted and removed as needed. This dynamic configuration allows the apparatus to maintain compact size during operation while accommodating maintenance functions when required.
2Volume of stationary object
If a detachable maintenance unit is used to suppress size increase, then apparatus size is reduced, but maintenance operations become less efficient
Solution Approach 1:
Multiple maintenance functions (suction cleaning, pressurization cleaning, and liquid collection) are merged into a single integrated maintenance unit. This consolidation allows all necessary maintenance operations to be performed through one detachable module, maintaining efficiency while reducing overall apparatus size.
Solution Approach 2:
The maintenance unit is designed with multi-functionality, incorporating both suction and pressurization capabilities along with liquid collection in a single device. This universal design ensures that one detachable unit can perform all required maintenance tasks, preventing loss of efficiency despite the detachable configuration.
3Reliability
If a space forming portion is added to open nozzles for maintenance, then suction cleaning can be performed, but device complexity increases
Solution Approach 1:
The space forming portion is nested within the maintenance unit structure, with the cap containing a recess that forms the suction space. This nested configuration integrates the space-forming function into the existing cap structure rather than adding separate components, thereby enabling suction cleaning while minimizing structural complexity.
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
The maintenance unit allows for compact apparatus design by enabling necessary maintenance operations only when required, suppressing size increase and effectively managing waste liquid, thus enhancing operational efficiency.
Implementation Method 1
a depressurizing portion configured to depressurize the space
Data Source
AI summary
A maintenance unit is provided to be mounted on a liquid discharge apparatus including a discharge portion that performs printing by discharging a liquid from a nozzle to a medium when the printing is not performed, and includes a cap configured to form a space in which the nozzle is open, and a pump configured to depressurize the space.