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公开(公告)号：US3809855A
公开(公告)日：1974-05-07
申请号：US36936973
申请日：1973-06-12
Applicant: IBM
Inventor： NEAL D
IPC: G03G21/00 , G01K13/08 , G03G15/20 , G05D23/275 , H05B1/00
CPC classification number: G01K13/08 , G03G15/2039 , G05D23/27539
Abstract: A contact type thermal sensing apparatus for a hot roll fusing unit includes a fail-safe detector to insure intimate contact between the thermal transducer and the monitored roll surface. The fail-safe detector also insures intimate contact between an over temperature sensing device and the monitored roll surface. The thermal transducer includes a thermally and electrically conductive contact which is held against the surface of the rotating conductive fuser roll. The output of the transducer is utilized to control the amount of heat supplied to the roll. A second thermally and electrically conductive contact is held against the surface of the rotating conductive roll and includes a thermal fuse which prevents further heat application to the roll should the surface thereof become overheated. The fail-safe detector comprises an electrical continuity circuit which includes the two contacts and the conductive roll. If either of the contacts becomes separated from the roll, electrical continuity therebetween is broken and the detector output prevents further heat application to the roll. The fail-safe detector thus insures that the transducer and thermal fuse contacts are intimately contacting the roll thereby preventing excessive overheating of the roll occasioned by the loss of such contact.
Abstract translation: 用于热辊定影单元的接触式热感测装置包括故障保护检测器，以确保热传感器和被监测的辊表面之间的紧密接触。 故障安全检测器还确保过热感测装置与被监测的辊表面之间的紧密接触。 热转换器包括一个热和导电的接触件，该接触件抵靠旋转的导电定影辊的表面。 传感器的输出用于控制供应到卷筒的热量。 第二导电和导电接触件抵靠旋转导电辊的表面保持，并且包括热熔丝，其防止在其表面变得过热时进一步施加到辊上。 故障安全检测器包括电连续性电路，其包括两个触头和导电辊。 如果任一个触点与辊分离，则它们之间的电连续性被破坏，并且检测器输出阻止对辊进一步的热施加。 因此，故障安全检测器确保换能器和热熔丝接触件与辊紧密接触，从而防止由于这种接触的损失而导致的辊的过度过热。
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公开(公告)号：BR7903164A
公开(公告)日：1979-12-11
申请号：BR7903164
申请日：1979-05-21
Applicant: IBM
Abstract: On electronic typewriters which have the ability to record into a small working memory those characters, functions and escapements which are keyed at the keyboard, it is many times advantageous to be able to place the carrier and the print point over a character which has been previously typed without using repeated backspaces. Disclosed herein is a feature for an electronic typewriter which permits the operator to easily align the print point with a character on the page by positioning a reference mark on the card holder or print carrier in relation to a previously printed character and then through keyboard control cause the carriage to shift its position such that the print point is then exactly aligned with the character printed. The positioning of the carrier such that the reference mark is in relation to the desired print point is accomplished by a backspace operation and the repositioning or causing of the carrier to assume a position immediately over the subject character is accomplished by keyboard control through the electronics of the typewriter to cause the carrier to shift a predetermined distance.
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Patent Agency Ranking
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公开(公告)号：BE875752A
公开(公告)日：1979-08-16
申请号：BE194754
申请日：1979-04-20
Applicant: IBM
Abstract: On electronic typewriters which have the ability to record into a small working memory those characters, functions and escapements which are keyed at the keyboard, it is many times advantageous to be able to place the carrier and the print point over a character which has been previously typed without using repeated backspaces. Disclosed herein is a feature for an electronic typewriter which permits the operator to easily align the print point with a character on the page by positioning a reference mark on the card holder or print carrier in relation to a previously printed character and then through keyboard control cause the carriage to shift its position such that the print point is then exactly aligned with the character printed. The positioning of the carrier such that the reference mark is in relation to the desired print point is accomplished by a backspace operation and the repositioning or causing of the carrier to assume a position immediately over the subject character is accomplished by keyboard control through the electronics of the typewriter to cause the carrier to shift a predetermined distance.
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