Multi-Source Print Power Distribution for Compact High-Speed Printing

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Solution Overview

Problem

Existing printers require larger power sources to achieve higher printing speeds, leading to potential increases in printer size.

Innovation Solution

A print system utilizing multiple power sources, including a battery, AC adaptor, and USB power supply, efficiently distributes power to a head and conveyance motor through a power supply circuit, allowing for simultaneous use of different power sources to meet printing demands without increasing the size of each power source.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the size of the power source is increased to provide more power for high-speed printing, then the printing speed can be improved, but the printer size increases

Engineering Contradiction:
Improveprinting speedVSAvoidprinter size
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The power supply system is segmented into multiple independent power sources (battery and external power supply device), each providing power to specific components. The battery powers the head while the external power supply devices power the conveyance motor, allowing high-speed printing without requiring a single oversized power source that would increase printer size.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The printer is designed with multi-functionality to accept multiple power sources simultaneously. The power supply circuit can selectively or simultaneously connect to both battery and external power supply devices, enabling the system to provide sufficient power for high-speed printing while maintaining a compact form factor by distributing power requirements across multiple smaller sources.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If multiple power sources are connected to provide sufficient power for high-speed printing, then the printing speed can be improved, but the device complexity increases

Engineering Contradiction:
Improveprinting speedVSAvoidpower supply circuit complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

A power supply circuit acts as an intermediary between the multiple power sources and the load components. This intermediary manages the complexity by providing a standardized interface that selectively connects to either the battery or external power supply devices, and distributes power to the head and conveyance motor appropriately, simplifying the overall system architecture despite having multiple power sources.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250269671A1Print system
Publication Date: 2025.08.28 BROTHER KOGYO KK
  • US20250269671A1 patent drawing
  • US20250269671A1 patent drawing
  • US20250269671A1 patent drawing

AI summary

A print system includes a head, a conveyance motor, a first connector, and a second connector, a power supply circuit. When a first power source is connected to the first connector and a second power source is connected to the second connector, the power supply circuit supplies at least some of a first power to the head and supplies at least some of a second power to the conveyance motor. The first power is a power of the first power source. The second power is a power of the second power source.