Printer paper thickness detection device and printer self-adaptive adjustment method

Abstract

The invention relates to a printer paper thickness detection device and a printer self-adaptive adjustment method. The device comprises a paper guide assembly and a paper feeding assembly, wherein thepaper guide assembly and the paper feeding assembly are sequentially mounted on a rack in the paper conveying direction, and a paper thickness detection assembly mounted at the position, on the paperfeeding assembly, of the rack. The paper thickness detection assembly comprises a detection rotating shaft and detection sensors, wherein the detection rotating shaft and the detection sensors are mounted on the rack at intervals, detection driving levers and a detection blocking piece are mounted on the detection rotating shaft, the outer ends of the detection driving levers are connected with the upper ends of pressing sleeves, a large sector portion and a small sector portion which cooperate with the detection sensors are arranged on the peripheries of the two ends of the detection blocking piece correspondingly, the detection rotating shaft is sleeved with a torsional spring, the inner end of the torsional spring is connected with the detection blocking piece, and the outer end of thetorsional spring is connected with the rack. The paper thickness detection device is simple in structure and reasonable in design, the distance between a printing head and a printing plate can be automatically adjusted through a paper thickness detection signal, poor printing quality or damage to the printing head due to inaccurate manual adjustment is avoided, the use experience is improved, andthe service life of a machine is prolonged.

Description

technical field [0001] The invention relates to a printer paper thickness detection device and a printer self-adaptive adjustment method. Background technique [0002] At present, the main methods for printers to detect paper thickness are infrared reflective measurement, inductive sensor measurement, and mechanical measurement. The first two methods of measurement will be affected by the thickness of the paper material and the gray scale, and usually the structure is more complicated and the price is relatively high. Paper thickness detection can be divided into stepless continuous detection and section segment detection; printer printheads usually adapt to a certain range of paper thickness, so paper thickness detection only needs to detect a specific paper thickness threshold; stepless continuous detection is likely to cause large Part of the data is not fully utilized, resulting in data waste. [0003] On the other hand, the current common dot matrix printers usually a...

AI Technical Summary

Problems solved by technology

The first two methods of measurement will affect the thickness of paper material and gray scale, and usually the structure is more complicated and the price is relatively high

Paper thickness detection can be divided into stepless continuous detection and section segment detection; printer printheads usually adapt to a certain range of paper thickness, so paper thickness detection only needs to detect a specific paper thickness threshold; stepless continuous detection is likely to cause large Part of the data is not fully utilized, resulting in data waste

[0003] On the other hand, the current common dot matrix printers usually adjust the distance between the print head and the printing plate manually to adapt to different paper thicknesses, which brings inconvenience to the user, and it is not easy to adjust the correct distance accurately, resulting in printing Poor quality, even risking damage to the print head

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