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Printing device

一种打印装置、打印头的技术，应用在动力传送装置、印刷、打字机等方向，能够解决热板条失效、限制热板条使用寿命、打印装置不经济等问题

Inactive Publication Date: 2008-10-08
ESPERA WERKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the life of the thermal strip is limited due to the contact of the thermal strip with the label surface, which makes it prone to wear and tear
Especially when the width of the printed label is much smaller compared to the width of the thermal strip, although the outside area of ​​said thermal strip is still functional, the presence of wear and tear in this working area will cause the thermal strip to fail, Therefore the printing unit is run in an uneconomical way
Also, the wider thermoslats are of course a bit more expensive than the narrower thermoslats

Method used

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Examples

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Embodiment Construction

[0017] Such as figure 1 Shown is a printing device for printing a unit of sheet material in the form of a product label supplied by a supply unit (not shown) in the form of an unwinding reel. A sheet unit in the form of a product label 1 made of thermal paper is first conveyed to a print drum 6 forming a counter pressure surface and subsequently moves along the top of a skewer 4 . After this, it reaches the front edge 2 formed on the skewer 4 .

[0018] Arranged above the deflection device 4 is a stationary carrier element 8 , on which an adapter plate 7 is arranged via an elastic holding device 9 , and to which the thermoslat 3 is fastened.

[0019] The unit comprising the thermal strip 3 and the adapter plate 7 can be locked or removed using locking means (not shown) above the illustrated printing device.

[0020] In this arrangement, each set of units comprising adapter plates 7 and thermoslats 3 is designed such that wide thermoslats 3 are associated with thicker adapter...

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Abstract

The invention relates to a printing device which is used to print flat elements (1) which are serially guided by a printing machine, especially product labels made of thermosensitive paper or a paper substitute material. Said printing device comprises a supply device for delivering the flat elements to a printing head which impinges upon the flat element. Said printing head has a thermal strip (3) supported in a flexible manner by a carrier device (8) such that, between the thermal strip (3) and the deviation device (4), a counter printing surface (6) exerts a predefined surface pressure on the flat element (11) which is to be printed. The aim of the invention is to improve said device such that an adapter means (7) is associated with the thermal strip (3) and which can be replaced at the same time and can be used to adjust the excursion of the flexible retaining means (9) for the thermal strip (3) such that a constant surface pressure can be obtained irrespective of the width of the thermal strip (3).

Description

technical field [0001] The invention relates to a printing device for printing a unit of sheet material which is continuously supplied to the printing device, said sheet unit comprising a surface material, in particular a product label made of thermal paper or of a paper substitute material , the printing device comprises a supply device for supplying the sheet unit to a printhead acting on the sheet unit, wherein said printhead comprises a thermal strip elastically supported by a carrier, between the thermal strip and the sheet unit , forming a counterpressure surface on the sheet unit to be printed with a predetermined surface pressure. Background technique [0002] Such a printing device is known from DE 100 22 152 A1. The printing unit is designed as a thermal printer in which a thermal strip prints thermal labels by localized heating. With this known type of printer it is possible to print product labels of different widths, wherein the width of the hot plate has to b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J25/312B41J2/32B41J3/407
CPCB41J25/312B41J2/32B41J3/4075
Inventor 温弗里德·维克托里于斯
Owner ESPERA WERKE
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