Rigid Liquid Ink Container with Self-Alignment and Gas Evacuation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current inkjet printing systems face challenges with large format printing due to the limited capacity of existing ink reservoirs and high overhead costs associated with frequent replacements, as well as the inefficiency and expense of ink usage in large format applications.

Innovation Solution

A large, substantially rigid liquid ink container and an ink delivery system that allows for self-alignment and automated ink flow using gravity and forced gas evacuation, eliminating the need for secondary packaging and reducing waste by facilitating efficient ink delivery to large format printing systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If collapsible containers are used to force ink out and reduce waste, then ink waste is reduced, but the containers require secondary packaging to protect integrity during shipping and handling

Engineering Contradiction:
Improveink wasteVSAvoidsecondary packaging
Core Design Contradiction:
Loss of substanceVSDevice complexity

Solution Approach 1:

The ink container is pre-filled and sealed in a rigid structure that maintains its integrity during shipping. The container is designed to be opened and connected to the printing system only when needed, eliminating the need for secondary protective packaging while preventing ink waste through its collapsible design that forces complete ink evacuation.

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If individually packaged replacement reservoirs are used, then ink delivery is simple, but overhead costs associated with manufacturing, packaging and shipping are burdensome

Engineering Contradiction:
Improvereplacement reservoir packagingVSAvoidoverhead cost
Core Design Contradiction:
Ease of manufactureVSQuantity of substance

Solution Approach 1:

Multiple ink containers are combined into a single rigid packaging unit that can be shipped and stored efficiently. The packaging contains multiple pre-filled collapsible containers along with the necessary connection components, reducing the number of separate shipping events and associated overhead costs while maintaining ease of replacement.

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If small desktop inkjet printers use small ink reservoirs, then the printers are compact and suitable for consumer use, but the reservoirs contain far less ink than required for large format printing

Engineering Contradiction:
Improveink reservoir capacityVSAvoidreplacement frequency
Core Design Contradiction:
Volume of moving objectVSDuration of action of moving object

Solution Approach 1:

The large ink supply is divided into multiple smaller collapsible containers within a single rigid packaging unit. Each container can be individually connected to the printing system, allowing the system to access large total ink volume through multiple smaller units that are easier to handle and replace than a single large reservoir.

Inventive Principle:
Principle #1Segmentation

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 solution provides a cost-effective and efficient method for large format printing by enabling the use of larger ink volumes without additional packaging, reducing the frequency of replacements, and minimizing ink waste through automated and user-friendly ink delivery.

Implementation Method 1

an ink delivery system is used to accept the large liquid ink container and designed to support the container at an angle, such that liquid ink flows from the container due to the force of gravity

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 2

The piezoelectric crystal generates a pulse in the ink so that the ink expels through the nozzle as a droplet

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentUS8967777B2Liquid ink containers for printing systems
Publication Date: 2015.03.03 ELECTRONICS FOR IMAGING INC
  • US8967777B2 patent drawing
  • US8967777B2 patent drawing
  • US8967777B2 patent drawing

AI summary

A liquid ink container having mating features for self alignment with an ink delivery station. The ink delivery station includes a receiver with an actuated puncture ring. The liquid ink container includes a cap that is punctured by the ring to allow fluid flow from the container. The receiver and container also include means for introducing pressurized gas into the container to facilitate evacuation of liquid ink.