Inkjet Printing Ink Replenishment via Consumption Data

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Solution Overview

Problem

Inkjet printing systems in industrial environments face significant ink waste due to uneven consumption patterns of inkjet inks, leading to shortages and expiration of certain inks, resulting in inefficiencies and increased costs.

Innovation Solution

An inkjet printing method that involves automatically sending digital ink consumption data from printing devices to a computer, which determines and replenishes the ink stock levels, ensuring minimal waste by maintaining optimal ink levels and reducing shipment costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If inkjet inks are ordered in the same amount for each colour, then the ordering process is simple, but it leads to shortage of some inks while others expire

Engineering Contradiction:
Improveordering process simplicityVSAvoidink waste
Core Design Contradiction:
Ease of manufactureVSLoss of substance

Solution Approach 1:

The system automatically monitors ink consumption levels in the inkjet printing device and sends this data to the supplier's computer. The supplier receives real-time feedback on actual ink usage patterns and adjusts replenishment orders accordingly, preventing both waste and shortages.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The inkjet printing device automatically tracks its own ink consumption and triggers replenishment requests without manual intervention. The system self-monitors ink levels and autonomously initiates the reordering process based on actual usage.

Inventive Principle:
Principle #25Self-service

2Reliability

If a large ink stock is maintained, then ink availability is ensured, but storage costs and waste increase

Engineering Contradiction:
Improveink availabilityVSAvoidink waste
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The ink stock level is made dynamic rather than static. The system continuously adjusts the replenishment timing and quantity based on real-time consumption data, ensuring the ink stock adapts to actual usage patterns rather than following a fixed schedule.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary monitoring of ink consumption levels and triggers replenishment before complete exhaustion occurs. By predicting consumption trends and acting in advance, the system ensures ink availability while minimizing excess storage.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If frequent ink replenishment is performed, then ink availability is maintained, but shipment costs increase

Engineering Contradiction:
Improveink availabilityVSAvoidshipment costs
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The system implements periodic monitoring and replenishment based on actual consumption cycles rather than fixed time intervals. Replenishment actions are triggered periodically when consumption thresholds are reached, optimizing the frequency of shipments.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system changes the parameter of replenishment timing from fixed schedules to consumption-based triggers. By adjusting the replenishment parameter based on actual ink usage rates, the system optimizes shipment frequency to match demand, reducing unnecessary shipments.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4216123B1Inkjet printing methods
Publication Date: 2024.08.07 AGFA NV
  • EP4216123B1 patent drawingFigure 1

AI summary

An inkjet printing method including the steps of: providing inkjet inks from an inkjet ink stock (1) to an inkjet printing device (2); printing the inkjet inks with the inkjet printing device (2) on a substrate; automatically sending digital inkjet ink consumption data from the inkjet printing device (2) via a digital connection (3) to a computer (4) of an inkjet ink supplier (5); and replenishing the inkjet ink stock (1) with an amount of at least one of the inkjet inks from the inkjet ink supplier (5), wherein the amount is determined in accordance with the digital inkjet ink consumption data. A computerized system is also disclosed.