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Printer method and apparatus

A technology for printers and printing media, used in printing devices, typewriters, printing, etc.

Active Publication Date: 2018-03-13
HAND HELD PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Light source directs light toward print media path

Method used

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  • Printer method and apparatus
  • Printer method and apparatus
  • Printer method and apparatus

Examples

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Embodiment Construction

[0055] The present invention includes a printer mechanism and methods of calibrating and operating the same.

[0056] In accordance with the teachings of the present invention, a red-green-blue (RGB) color light sensor can be used to detect preprinted elements on the front side of thermal media and implement the required media pairing for a variety of formats and labels (e.g., barcode labels and parking citations). allow. This eliminates any need for black marks or / and back reflective photosensors. RGB color light sensors can be used in conjunction with infrared (IR) blocking filters to avoid sensing errors caused by direct sunlight and other IR sources.

[0057] According to certain exemplary embodiments, instead of using an infrared reflective sensor in the printhead mechanism, an RGB color light sensor is utilized. Example: Intersil part number ISL29120 can be used. In another example, the peel and play mechanism may utilize an RGB color light sensor with an IR blocking ...

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PUM

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Abstract

The invention relates to a printer method and apparatus. A printer has a light source that directs light toward a print medium path. An RGB sensor is positioned to receive light from the light sourcethat is reflected by the print medium. An infrared light filter is situated between the RGB sensor and the paper to filter out infrared light. A programmed processor is coupled to an output of the RGBsensor in order to detect form elements in the output from the RGB light sensor, retrieve a stored electronic representation of a form, match the form elements to the stored electronic representationof the form to identify locations on the form, and control printing to the form.

Description

technical field [0001] The present invention relates to printing devices, and in particular to portable printing devices, such as those used for printing labels and the like. Background technique [0002] Pre-printed (forms, etc.) or fixed-size (labels, etc.) thermal media should be accurately aligned within the printer so that it will be properly aligned to print onto that media. The most common method of ensuring accurate media registration is to use pre-printed "black marks" on the back or front of that media. [0003] Unfortunately, black marks printed on the front side can result in large inter-format / label gaps, or can introduce undesirable elements (black marks) into the print canvas. Backside printed indicia also adds to the complexity of the printer design as it requires reflective photoelectric sensors to be mounted on the backside of the printer door. For this purpose, infrared light emitters are usually used. However, conventional infrared reflective photoelec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/315B41J11/00G06V30/40
CPCB41J2/315B41J11/008B41J3/4075B41J11/46G06Q20/045G07G3/00G07G5/00G06Q20/209G06V30/40G06V10/245G06Q20/208G01N21/86G06V30/412G06V30/1423
Inventor D.S.博斯科
Owner HAND HELD PRODS