Thermal print head arrangement

Details Thermal print head arrangement Thermal print head arrangement

1998-03-16

2000-11-28

Tran, Huan

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

B41J 2345

Patent

active

061542423

ABSTRACT:
A thermal print head arrangement for a thermal printer in which print lines of printing elements of adjacent print heads are parallel and spread across the width direction of a recording sheet, perpendicular to the lengthwise direction of travel of the recording sheet, with any two adjacent print heads having opposite orientations facing each other is provided. Print heads are cut at an oblique angle at both ends thus allowing them to be closely and consecutively arranged in alternate dispositions. The method for alignment of the print heads, involves the use of a microscope positioned above print elements of print heads. An alignment marker of the microscope's eyepiece is used to position the print heads on the print head support. Each adjacent print head is positioned with its oblique cut edge against the similar cut edge of the first print head and displaced to obtain the distance between end print elements of adjacent print heads equal to the internal distance of all print elements of each print head. The device for alignment of the print heads consists of a planar base support having a high precision linear bearing guide rail along one side, onto which a sliding block travels supporting a microscope and mounting device.

REFERENCES:
patent: 5914743 (1999-06-01), Tagashira et al.

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