4.
    发明专利
    未知

    公开(公告)号:IT1166884B

    公开(公告)日:1987-05-06

    申请号:IT2356179

    申请日:1979-06-14

    Applicant: IBM

    Abstract: A daisy wheel spring disc utilized in conjunction with a daisy wheel print element to control impression. Both the spring disc and the print element have radially extending petals. The print element petals carry a character adjacent their outer extremity. A spring disc petal is associated with each print element petal for which impression is to be controlled. The spring disc petals vary in length relative to the print element petals. The lengths of the spring disc petals depend upon whether the character on the associated print wheel petal has a large or small print surface area. During printing, the spring disc is positioned on the printing side of the print element. When a print element petal is driven out of the plane of the remaining print element petals during printing of a character, the associated spring disc petal will be contacted and will absorb a portion of the energy imparted to the print element petal.

    5.
    发明专利
    未知

    公开(公告)号:IT7923561D0

    公开(公告)日:1979-06-14

    申请号:IT2356179

    申请日:1979-06-14

    Applicant: IBM

    Abstract: A daisy wheel spring disc utilized in conjunction with a daisy wheel print element to control impression. Both the spring disc and the print element have radially extending petals. The print element petals carry a character adjacent their outer extremity. A spring disc petal is associated with each print element petal for which impression is to be controlled. The spring disc petals vary in length relative to the print element petals. The lengths of the spring disc petals depend upon whether the character on the associated print wheel petal has a large or small print surface area. During printing, the spring disc is positioned on the printing side of the print element. When a print element petal is driven out of the plane of the remaining print element petals during printing of a character, the associated spring disc petal will be contacted and will absorb a portion of the energy imparted to the print element petal.

    SUPPORT FOR A TYPE BELT OF A LINE PRINTER

    公开(公告)号:CA1161691A

    公开(公告)日:1984-02-07

    申请号:CA380778

    申请日:1981-06-26

    Applicant: IBM

    Abstract: The continuous type belt (3) is arranged round two rollers (25), one of which is driven. One straight section of the type belt (3) contacts over its entire length the support designed as a platen (23). In order to avoid grooves on the platen (23) caused by the rotating type belt (3), and to achieve a distribution of other kinds of wear of the platen (23) over its circumference, a gear motor (27) causes the platen (23) to rotate very slowly (approximately 1 revolution in 72 hours). The platen (23) can also be rotated without gear motor. For this purpose, the longitudinal axis of the platen (23) is slightly inclined relative to the edge of the type belt (3). This inclination effects a small movement component in the direction of the platen circumference while the type belt (3) slides along the lateral surface of the platen (23), said component causing a slow revolution of the platen (23).

    8.
    发明专利
    未知

    公开(公告)号:DE2832338A1

    公开(公告)日:1980-01-31

    申请号:DE2832338

    申请日:1978-07-22

    Abstract: A daisy wheel spring disc utilized in conjunction with a daisy wheel print element to control impression. Both the spring disc and the print element have radially extending petals. The print element petals carry a character adjacent their outer extremity. A spring disc petal is associated with each print element petal for which impression is to be controlled. The spring disc petals vary in length relative to the print element petals. The lengths of the spring disc petals depend upon whether the character on the associated print wheel petal has a large or small print surface area. During printing, the spring disc is positioned on the printing side of the print element. When a print element petal is driven out of the plane of the remaining print element petals during printing of a character, the associated spring disc petal will be contacted and will absorb a portion of the energy imparted to the print element petal.

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