Printing unit and thermal printer

US2016185135A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016185135-A1
Application numberUS-201514969599-A
CountryUS
Kind codeA1
Filing dateDec 15, 2015
Priority dateDec 24, 2014
Publication dateJun 30, 2016
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A printing unit comprises: a main body frame; a platen roller removably mounted to the main body frame; a lock mechanism pivotably supported by the main body frame between a lock position at which the platen roller is rotatably held by the main body frame and an unlock position at which the platen roller is removable from the main body frame; a thermal head to be brought into pressure contact with an outer circumferential surface of the platen roller; a head support body configured to support the thermal head, the head support body being pivotably supported by the main body frame in such directions that the thermal head and the platen roller are brought closer to and away from each other; an urging member interposed between the lock mechanism and the head support body, the urging member being configured to urge the lock mechanism toward the lock position and urge the head support body in such a direction that the thermal head is brought closer to the platen roller; and a head pressing member configured to press the head support body in such a direction that the thermal head is brought closer to the platen roller.

First claim

Opening claim text (preview).

What is claimed is: 1 . A printing unit comprising: a main body frame; a platen roller removably mounted to the main body frame; a lock mechanism pivotably supported by the main body frame between a lock position at which the platen roller is rotatably held by the main body frame and an unlock position at which the platen roller is removable from the main body frame; a thermal head to be brought into pressure contact with an outer circumferential surface of the platen roller; a head support body configured to support the thermal head, the head support body being pivotably supported by the main body frame in such directions that the thermal head and the platen roller are brought closer to and away from each other; an urging member interposed between the lock mechanism and the head support body, the urging member being configured to urge the lock mechanism toward the lock position and urge the head support body in such a direction that the thermal head is brought closer to the platen roller; and a head pressing member configured to press the head support body in such a direction that the thermal head is brought closer to the platen roller. 2 . A printing unit according to claim 1 , wherein the head pressing member is a spring configured to urge the head support body in such a direction that the thermal head is brought closer to the platen roller. 3 . A printing unit according to claim 2 , wherein the lock mechanism individually holds both end portions of the platen roller in an axial direction of the platen roller, and the urging member is arranged outside the head pressing member in the axial direction of the platen roller. 4 . A printing unit according to claim 1 , wherein the head pressing member is interposed between the main body frame and the head support body. 5 . A printer including the printing unit according to claim 1 .

Assignees

Inventors

Classifications

  • with print pressure adjustment mechanisms, e.g. pressure-on-the paper mechanisms · CPC title

  • Bodily-changeable print heads or carriages · CPC title

  • B41J2/32Primary

    using thermal heads · CPC title

  • B41J2/315Primary

    characterised by selective application of heat to a heat sensitive printing or impression-transfer material (B41J2/385, B41J2/435 take precedence) · CPC title

  • Thermal printer with head or platen movable · CPC title

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Frequently asked questions

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What does patent US2016185135A1 cover?
A printing unit comprises: a main body frame; a platen roller removably mounted to the main body frame; a lock mechanism pivotably supported by the main body frame between a lock position at which the platen roller is rotatably held by the main body frame and an unlock position at which the platen roller is removable from the main body frame; a thermal head to be brought into pressure contact w…
Who is the assignee on this patent?
Seiko Instr Inc
What technology area does this patent fall under?
Primary CPC classification B41J2/32. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Jun 30 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).