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Detection method and detection system for detecting using up of print paper roll

A detection system and detection method technology, applied in printing devices, printing and other directions, can solve the problems of difficult and inaccurate detection of several tickets, etc.

Inactive Publication Date: 2013-10-23
SHENZHEN JOYSCAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007]The above-mentioned detection methods are to detect the size or weight of the diameter of the roll-shaped printing paper roll. Since the paper is very light, the above-mentioned scheme cannot achieve accurate detection. For example, the last Several tickets are difficult to detect accurately

Method used

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  • Detection method and detection system for detecting using up of print paper roll
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  • Detection method and detection system for detecting using up of print paper roll

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Embodiment Construction

[0027] like image 3 , the present invention discloses a detection method for detecting that the printing paper roll will run out: setting a mark 111 at a predetermined position of the printing paper roll 110, setting a scanning device 120 to scan the printing paper roll 111, setting a processor (not shown), When the scanning device 120 scans the mark 111, the processor sends out a warning, reminding the user that the printing paper roll will be used up. Since the scanning device 120 scans the mark 111, the processor will issue a warning to remind the user that the printing paper roll 110 has been used at the mark, and the remaining paper roll length at the mark is known and can be set according to needs, which can be accurately Confirm the length of the paper roll 110 behind the mark.

[0028] The printing paper roll 110 is in a roll shape. Preferably, the scanning device is a multispectral image scanning device 121 , and the optical characteristics of the mark 111 are diff...

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Abstract

The invention discloses a detection method for detecting the using up of a print paper roll. A mark is arranged at a preset position of the print paper roll, a scanner is arranged for scanning the print paper roll, and a processor is arranged for alarming when the scanner scans the mark, thus prompting a user that the print paper roll is to be used up. According to the detection method for detecting the using up of the print paper roll, when the scanner scans the mark, the processor alarms to prompt the user that the print paper roll is used to the mark position, and the rest paper roll length behind the mark is known and can be set as needed, so the length of the print paper roll behind the mark can be precisely determined. The invention also provides a detection system for detecting the using up of the print paper roll.

Description

technical field [0001] The invention relates to the field of printers, in particular to a detection method and a detection system for detecting that a printing paper roll will be exhausted. Background technique [0002] Printers using roll-shaped printing paper rolls are widely used in supermarkets, shopping malls, lotteries and other fields to print customer transaction vouchers. Due to the heavy workload, the printing paper rolls are changed frequently. In order to prevent the paper out problem during the printing process, it is usually necessary to prompt the user to replace the printing paper roll when the printing paper roll is about to run out. [0003] One of the methods is to set a near-end sensor A on the side wall of the printer paper chamber to detect the remaining amount of the printing paper roll. like figure 1 , when the paper roll size is a large paper roll, the paper near-end sensor A detects the end of the printing paper roll B. As the paper is consumed,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J29/48
Inventor 樊小明陆开良严谨丘龙马建银孙运金
Owner SHENZHEN JOYSCAN TECH