Photo Printer Head Bracket Gap Adjustment Mechanism

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Solution Overview

Problem

Conventional photo printers fail to maintain a constant gap between the head and the platen roller due to mechanical errors in locking projections and stoppers, leading to inconsistent printing quality.

Innovation Solution

A photo printer design featuring a frame with side walls, swingably coupled brackets, and fixing bolts to maintain a consistent gap between the head and the platen roller, utilizing swing holes, hinge-coupled brackets, and adjustable fixing bolts to ensure precise alignment and gap maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If locking projections and stoppers are used to form the gap between the head and platen roller, then the gap is formed, but the gap cannot be maintained constantly due to mechanical errors

Engineering Contradiction:
Improvegap consistencyVSAvoidgap maintenance
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The head is changed from a fixed position to a swingable position, allowing dynamic adjustment of the gap between the head and platen roller. This enables the gap to be optimized for different printing conditions while maintaining consistent printing quality.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The gap between the head and platen roller is changed from a fixed parameter to an adjustable parameter. By making the head swingable, the gap can be adjusted to optimal values, improving manufacturing precision and reliability.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If the head is fixed in position, then the structure is simple, but the gap cannot be adjusted for optimal printing quality

Engineering Contradiction:
Improvehead mounting structureVSAvoidprinting quality consistency
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The head mounting structure is changed from fixed to swingable, adding minimal complexity while enabling gap adjustment. This dynamic structure allows the head to be positioned optimally for each printing operation, significantly improving printing quality consistency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The head position is pre-adjusted to an optimal gap before printing begins. This preliminary adjustment ensures that the printing operation starts with optimal parameters, maintaining consistent quality throughout the printing process.

Inventive Principle:
Principle #10Preliminary action

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 allows for a consistent gap between the head and the platen roller, enhancing print quality by ensuring uniform heat application and reducing mechanical errors, thereby improving the overall printing process.

Implementation Method 1

a head (30) disposed above the platen roller (R2) to apply the heat to the paper

Methodology Applied
Scientific EffectThermal energy transfer: Conduction (thermal)

Implementation Method 2

dyes, which respond to heat and thus express colors, are laminated on the paper

Methodology Applied
Scientific EffectThermochromism: Thermochromism

Data Source

PatentUS10603937B2Photo printer and method for manufacturing the same
Publication Date: 2020.03.31 DS GLOBAL CO LTD
  • US10603937B2 patent drawing
  • US10603937B2 patent drawing
  • US10603937B2 patent drawing

AI summary

Provided is a photo printer and a method for manufacturing the same that are capable of allowing a gap formed between a head and a platen roller to be kept constantly. The photo printer includes: a frame having both side walls; a paper accommodating part disposed between both side walls of the frame to accommodate the paper therein; a pickup roller located protrudingly from a bottom surface of the paper accommodating part to forward feed the paper accommodated in the paper accommodating part; a platen roller coupled to the frame to discharge the paper fed from the pickup roller forward; a head disposed above the platen roller to apply the heat to the paper; and a pair of brackets each having one side swingably coupled to the head and the other side hinge-coupled to the frame.