Platen Positioning Layout for Compact Printing Equipment

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Solution Overview

Problem

Existing printing apparatuses require a significant installation space due to the need to move the platen outside the housing for medium placement, necessitating a larger footprint.

Innovation Solution

A printing apparatus design that includes a head moving unit capable of moving within a defined range, allowing the nozzle to face or retract from the support surface, and a position adjustment unit that moves the support surface within the housing when printing is not in progress, optimizing space utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the platen is moved outside the housing for medium placement, then the medium can be easily placed on the support surface, but the installation space of the printing apparatus increases

Engineering Contradiction:

Improveease of medium placementVSAvoidinstallation space

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

The support surface is nested within the housing and can be moved between an extended position (outside the housing) for medium placement and a retracted position (inside the housing) to minimize installation space. This nesting mechanism allows the platen to be stored within the apparatus footprint while maintaining accessibility during operation

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The support surface is made dynamically movable between extended and retracted positions rather than being fixed. This dynamic adjustment allows the system to optimize between two states: easy medium placement when extended, and compact installation footprint when retracted, resolving the contradiction between operational ease and space efficiency

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the platen is moved outside the housing, then medium placement space is secured, but the overall device size increases

Engineering Contradiction:

Improvemedium placement capabilityVSAvoiddevice footprint

Core Design Contradiction:

Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

Instead of extending the device footprint in the horizontal plane, the support surface moves in the vertical dimension - extending above the housing for medium placement and retracting below to minimize the horizontal footprint. This dimensional transition allows medium placement capability without increasing the overall device footprint

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12533887B2Printing apparatus and printing method

Publication Date: 2026.01.27 SEIKO EPSON CORP

AI summary

A printing apparatus includes a housing, a medium support unit having a support surface supporting a medium, and a printing unit configured to perform printing on the medium supported by the support surface. The housing accommodates the medium support unit and the printing unit. The medium support unit includes a position adjustment unit configured to adjust a position of the support surface in an intersecting direction intersecting the support surface. The position adjustment unit can move the support surface from outside the movement range to within the movement range when the printing is not being performed by the printing unit and the head is disposed at a retracted position.