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Control of printing operation of printing heads in a digital printing apparatus

A technology of digital printing and printing head, which is applied in the direction of printing devices, printing, typewriters, etc., and can solve the problems that the motor servo control is not absolutely stable, tense, and unsuitable

Active Publication Date: 2019-01-15
SPGPRINTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, as a result of the rigid setup, the servo control of the motor is not absolutely stable and can be characterized as "tense"
This makes the signal from the motor encoder unsuitable as a pulse generator for controlling the printing operation of the print head

Method used

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  • Control of printing operation of printing heads in a digital printing apparatus
  • Control of printing operation of printing heads in a digital printing apparatus
  • Control of printing operation of printing heads in a digital printing apparatus

Examples

Experimental program
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Embodiment Construction

[0034] figure 1 with figure 2 The top view and the side view of the digital inkjet printing device 100 (hereinafter also referred to as the printing device 100) of the present invention are schematically depicted respectively. The printing device 100 includes at least a first roller 102 and a second roller 104, each roller is installed in a frame (not shown) through a suitable corresponding bearing structure (not shown), and is configured to respectively surround a first rotation axis 103 and the second rotating shaft 105 rotate. The closed loop belt 106 is installed around the first roller 102 and the second roller 104. The printing device 100 may include one or more additional rollers (not shown), for example, a take-up roller for tightening the belt 106.

[0035] The mechanical gear transmission 108 has an input shaft 112 and an output shaft. The first roller 102 is coupled to the output shaft of the mechanical gear transmission 108, and the input shaft 112 of the mechanica...

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PUM

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Abstract

A digital printing apparatus (100) for inkjet printing on a sheet or web of material apparatus comprises a belt (106) for supporting and conveying the sheet or web of material fixed to the belt. The belt is guided along at least a first roller (102) driven by a motor (110), and a second roller (104) driven by the belt. A plurality of printing heads (211...216) are arranged along the path of the belt. A control system (220) is configured to control the operation of the motor and the printing operation of the printing heads. A first encoder (122) being configured to supply a first encoder signalto the control system for controlling the operation of the motor,is associated with the first roller. A second encoder (124) being configured to supply a second encoder signal to the control system for controlling the printing operation of each printing head, is associated with the second roller.

Description

Technical field [0001] The present invention relates to the field of digital printing, and more particularly to a digital textile printing apparatus and method, in which inks of different colors are printed on textiles such as sheet or mesh material by means of an inkjet printer including multiple print heads. Material. Background technique [0002] In a digital printing apparatus including an inkjet printer, a sheet or mesh material such as a textile material is conveyed in the conveying direction. In the context of the present invention, a driven belt system is used to convey sheet or web material. The belt system includes one or more belts guided along the cylindrical surface of the rollers, each roller rotating around a corresponding axis of rotation. The rotation axes of the different rollers are basically parallel. At least one of the rollers is driven by a motor, which is preferably driven by an electric motor due to its high controllability. At least one of the roller...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J11/00B41J11/42B41J3/407B41J3/54
CPCB41J3/4078B41J3/543B41J11/007B41J11/008B41J11/42
Inventor M·M·A·J·詹森
Owner SPGPRINTS