Electrical print impression control
    1.
    发明授权
    Electrical print impression control 失效
    电打印印象控制

    公开(公告)号:US3866533A

    公开(公告)日:1975-02-18

    申请号:US31830972

    申请日:1972-12-26

    Applicant: IBM

    CPC classification number: B41J1/20 B41J9/48

    Abstract: Impression control for an impact printer is provided by changing the width of the pulse applied to the print hammers in accordance with the thickness of the forms on which printing is being performed and in accordance with the voltage of the source energizing the print hammers, so as to maintain a constant impact force to provide uniform print density for different forms thicknesses. Misregistration of characters caused by a variation in the rate of movement of the print hammer is compensated for by changing the start time of the pulse energizing the hammer.

    Abstract translation: 冲击式打印机的印象控制是通过根据正在进行打印的形式的厚度和根据对打印锤激励的源的电压来改变施加到打印锤的脉冲的宽度来提供的,以便 以保持恒定的冲击力,以为不同的形状厚度提供均匀的印刷密度。 通过改变激励锤的脉冲的开始时间来补偿由打印锤的移动速率的变化引起的字符的对准。

    2.
    发明专利
    未知

    公开(公告)号:DE2360323A1

    公开(公告)日:1974-07-04

    申请号:DE2360323

    申请日:1973-12-04

    Applicant: IBM

    Abstract: Impression control for an impact printer is provided by changing the width of the pulse applied to the print hammers in accordance with the thickness of the forms on which printing is being performed and in accordance with the voltage of the source energizing the print hammers, so as to maintain a constant impact force to provide uniform print density for different forms thicknesses. Misregistration of characters caused by a variation in the rate of movement of the print hammer is compensated for by changing the start time of the pulse energizing the hammer.

    3.
    发明专利
    未知

    公开(公告)号:DE1524422A1

    公开(公告)日:1970-08-13

    申请号:DE1524422

    申请日:1966-10-08

    Applicant: IBM

    Abstract: 1,130,072. Selective printers. INTERNATIONAL BUSINESS MACHINES CORP. 17 Oct., 1966 [18 Oct., 1965], No. 46234/66. Heading B6F. A flexible harness to support a plurality of print wire cables 28 in a wire printer comprises a ribbon of resilient flexible material, e.g. polyurethane, in which the cables are embedded. The cables 28 carrying the print wires 29 extend in a vertical plane at a print control mechanism 10 until they get to the print head end 27 of the ribbon where they are formed into shape required to form characters. The ribbon has an increased thickness at each end A, G and is thinnest in the centre part DC, so that flexibility decreases gradually towards the ends which are attached to the print head and control mechanism. The ribbon is formed as an I-section and has vertical reinforcing ribs at spaced intervals.

    ELECTRICAL PRINT IMPRESSION CONTROL

    公开(公告)号:CA997208A

    公开(公告)日:1976-09-21

    申请号:CA186054

    申请日:1973-11-16

    Applicant: IBM

    Abstract: Impression control for an impact printer is provided by changing the width of the pulse applied to the print hammers in accordance with the thickness of the forms on which printing is being performed and in accordance with the voltage of the source energizing the print hammers, so as to maintain a constant impact force to provide uniform print density for different forms thicknesses. Misregistration of characters caused by a variation in the rate of movement of the print hammer is compensated for by changing the start time of the pulse energizing the hammer.

    6.
    发明专利
    未知

    公开(公告)号:DE1524421A1

    公开(公告)日:1970-08-20

    申请号:DE1524421

    申请日:1966-10-08

    Applicant: IBM

    Abstract: 1,130,072. Selective printers. INTERNATIONAL BUSINESS MACHINES CORP. 17 Oct., 1966 [18 Oct., 1965], No. 46234/66. Heading B6F. A flexible harness to support a plurality of print wire cables 28 in a wire printer comprises a ribbon of resilient flexible material, e.g. polyurethane, in which the cables are embedded. The cables 28 carrying the print wires 29 extend in a vertical plane at a print control mechanism 10 until they get to the print head end 27 of the ribbon where they are formed into shape required to form characters. The ribbon has an increased thickness at each end A, G and is thinnest in the centre part DC, so that flexibility decreases gradually towards the ends which are attached to the print head and control mechanism. The ribbon is formed as an I-section and has vertical reinforcing ribs at spaced intervals.

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