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91. 发明专利

DE3175637D1 CONTROL DEVICE FOR A CHAIN PRINTER WITH A PLURALITY OF PRINT HAMMERS 未知
公开(公告)号：DE3175637D1
公开(公告)日：1987-01-08
申请号：DE3175637
申请日：1981-08-06
申请人： IBM DEUTSCHLAND , IBM
发明人： BARTHEL JAN , BUBLITZ HERMANN R
IPC分类号： B41J1/20 , B41J7/36 , B41J9/46 , G05B19/042 , G06K15/06 , G06K15/08 , G06F3/12
摘要： Microprocessor-controlled adapter circuit for real-time controls, in particular for print hammer controls in line printers with revolving type carrier with two asynchronously driven FIFO buffers (FIRST IN, FIRST OUT). The first FIFO buffer contains time values (e.g., firing times for the print hammers) and the second FIFO buffer control information associated with these time values (e.g., print hammer address, control commands for the print hammer). By a request circuit (e.g., counters), the time values are successively read from the first FIFO buffer and fed to a gate circuit for switching the control information, associated with these time values, from the second FIFO buffer for controlling the output values. A method of determining the firing times of the print hammers uses a reduced table in which for each character in each print position the positions (time values), in which the character is to be printed, are stored only for some displacement values of the revolving type carrier relative to the printer frame. For the remaining displacement values, the time values for character printing can be determined by division, using the table data. Mechanical or electrical tolerances influencing the firing times of the print hammers are compensated for by accommodating in the table additional correction delay values for the print hammers, thus eliminating adjustments.

92. 发明专利

DE139538T1 未知
公开(公告)号：DE139538T1
公开(公告)日：1985-10-10
申请号：DE84307274
申请日：1984-10-23
申请人： NCR CANADA LTD. - NCR CANADA LTEE., MISSISSAUGA, ONTARIO, CA
发明人： MAZUMDER, ALI TAZAMMUL, WATERLOO ONTARIO N2K 2E4, CA
IPC分类号： G06F3/12 , B41J7/36 , B41J9/46 , B41J9/50 , G06K13/02 , G06K15/00 , B41J9/26

93. 发明专利

AU2521284A ELECTRONIC TYPEWRITER 未知
公开(公告)号：AU2521284A
公开(公告)日：1985-09-05
申请号：AU2521284
申请日：1984-03-01
申请人： OLIVETTI & CO SPA
发明人： MUSSO PIETRO
IPC分类号： B41J1/30 , B41J1/24 , B41J7/36 , B41J7/48 , B41J7/96 , B41J1/26

94. 发明专利

DE3506324A1 Drive for the type roller of a printing mechanism 未知
公开(公告)号：DE3506324A1
公开(公告)日：1985-08-29
申请号：DE3506324
申请日：1985-02-22
申请人： CITIZEN WATCH CO LTD
发明人： NAKAJIMA YOSHIYUKI
IPC分类号： B41J7/36 , B41J1/48 , B41J7/34 , B41J23/04 , B41J23/06
摘要： An impact printing mechanism has a type roller, a number of hammers, a type-roller gearwheel attached to a shaft of the type roller, and a gear mechanism having a driving wheel and an intermediate wheel which is engaged with the driving wheel and the type-roller gearwheel for the rotary drive of the type roller. A lever is mounted pivotably on a shaft of the driving wheel. The intermediate wheel is mounted rotatably at one end of the lever and the latter is loaded by a spring in a direction in which the intermediate wheel is held in engagement with the type-roller gearwheel. In relation to the direction of rotation of the type-roller gearwheel, the lever is arranged in such a way that the rotation of the type-roller gearwheel causes the intermediate wheel to roll off on the driving wheel in the sense of reinforcing its engagement with the type-roller gearwheel and thus causes the type roller to be decelerated.

95. 发明专利

ES8507045A1 MAQUINA DE ESCRIBIR ELECTRONICA 未知
公开(公告)号：ES8507045A1
公开(公告)日：1985-08-16
申请号：ES531564
申请日：1984-04-12
申请人： OLIVETTI & CO SPA
IPC分类号： B41J19/20 , B41J1/30 , B41J3/36 , B41J29/18 , B41J29/26 , B41J29/36 , B41J35/10 , B41J7/36 , B41J23/32 , B41J1/24
摘要： PERFECCIONAMIENTOS EN UNA MAQUINA DE ESCRIBIR ELECTRONICA.CONSISTENTES EN: UN PARO DE RECTIFICACION ACTIVABLE PARA DETENER EL CARRO EN LA POSICION DESEADA, POR UN CIRCUITO EN EL QUE ACTUA UN GRUPO MOTOR PARA DESPLAZAR GENERICAMENTE EL CARRO DE LA POSICION ACTUAL A UNA POSICION INTERMEDIA, ADYACENTE A LA POSICION DESEADA A LO LARGO DE UNA MISMA DIRECCION EN LA QUE EL CIRCUITO REACTIVA EL GRUPO MOTOR ACCIONA EL PARO DE RECTIFICACION PARA DESPLAZAR UNIDIRECCIONALMENTE EL CARRO DE LA POSICION INTERMEDIA A LA POSICION DESEADA.

96. 发明专利

DE3421466A1 未知
公开(公告)号：DE3421466A1
公开(公告)日：1984-12-13
申请号：DE3421466
申请日：1984-06-08
申请人： SEIKOSHA KK
发明人： IKEDA YOSHIAKI
IPC分类号： G01D5/245 , B41J2/31 , B41J2/51 , B41J7/36 , B41J7/96 , B41J11/42 , B41J29/17 , G01D5/244 , G01D5/247 , G08C9/06 , H03K13/18 , B41J9/26
摘要： An apparatus for controlling a pulse generator includes a sensor cooperating with a rotary detecting plate for generating a pulse, as for defining the timing for the printing operation. An indexing gear faces one side of the detecting plate, and is formed by a rotary member on which the detecting plate is supported. A plurality of indexing pins are provided on the one side of the detecting plate and engaged with teeth on the indexing gear. The pins are disengageable from those teeth and engageable with other teeth on the indexing gear by rotation of the detecting plate relative to the indexing gear. A spring normally urges the detecting plate in engagement with the indexing gear.

97. 发明专利

BR8307155A 未知
公开(公告)号：BR8307155A
公开(公告)日：1984-08-07
申请号：BR8307155
申请日：1983-12-26
申请人： IBM
发明人： CARRINGTON JAMES EDWARD , WESTCOTT GERALD
IPC分类号： B41J7/36 , B41J9/44 , B41J9/46 , G06K15/08 , G06K15/02 , B41J9/02
摘要： This control system for a multispeed/multipitch line printer basically comprises two read/write memories called the Band Image Buffer (19) and the Print Line Buffer (17). The Band Image Buffer (19) is loaded with the character image of the print band or chain (10) and can be visualized as an electronic band running in synchronism with the type carrier (10). The Print Line Buffer (17) is loaded with a line of data to be printed. Both buffers (17, 19) are read during each option time of a print subscan, their contents are compared in a comparator (47)-which controls the hammer firing circuits (51, 53)-, and their respective address registers (23, 22) are modified to a new value at the end of each subscan. A control bit is stored in a check buffer (20) to detect the end of each subscan. Comparison of the contents of the Band Image and Print Line Buffers (19, 17) continues until the control bit is detected signifying that a Band Image Buffer correction cycle followed by a Print Line Buffer correction cycle should be performed.

98. 发明专利

SU1088943A1 APPARATUS FOR MOVING TYPE CARRIERS OF SELECTIVE PRINTING MECHANISM INTO PRINTING POSITION 未知
公开(公告)号：SU1088943A1
公开(公告)日：1984-04-30
申请号：SU3495628
申请日：1982-09-28
申请人： RYZHIKOV ANATOLIJ L , BLOKH MARINA YA , MATUSEVICH VLADIMIR Z
发明人： RYZHIKOV ANATOLIJ L , BLOKH MARINA YA , MATUSEVICH VLADIMIR Z
IPC分类号： B41J7/36

99. 发明专利

DE3066226D1 CONTROL UNIT FOR A SERIAL PRINTER 未知
公开(公告)号：DE3066226D1
公开(公告)日：1984-03-01
申请号：DE3066226
申请日：1980-02-25
申请人： OLIVETTI & CO SPA
发明人： GIACONE FELICE
IPC分类号： B41J1/30 , B41J1/24 , B41J7/36 , B41J19/18 , G05B19/23
摘要： In a serial printer of the type having a carriage continuously moved along a printing line and supporting a type-member intermittently rotated for selecting the next character being printed, a control unit is provided which performs an algorithm for executing a forecast calculation of the residual time missing in every moment to the type-member for positioning the character being printed. The same control unit calculates a correspondent speed of the carriage depending on that residual time and on the position reached by the carriage on the printing line. The speed of the carriage is thereby continuously controlled from the preceding to the new printing position for causing the printing of the selected character exactly on the printing position at the maximum speed of the carriage consistent with a good print operation.

100. 发明专利

BR8303129A 未知
公开(公告)号：BR8303129A
公开(公告)日：1984-01-31
申请号：BR8303129
申请日：1983-06-13
申请人： IBM
发明人： CARRINGTON JAMES EDWARD , HRYCK MICHAEL D , SKINNER DEAN WILLIAM , WESTCOTT GERALD RALPH
IPC分类号： B41J1/20 , B41J7/36 , G06K15/08 , G06K15/02 , B41J9/00
摘要： @ The control system for a line printer includes compensation circuit means (29) for electronically changing the timing of the reference or home pulse to compensate for changes in the speed of the type characters (16) on a continuous type carrier (10).,The compensation circuit includes a storage register, a counter and a comparison circuit for comparing the content of the storage register and the counter. The counter when activated by a reference pulse generated from a reference mark on the moving type carrier (10) counts subscan pulses generated from timing marks moving with the type characters. The storage register, which is programmable, stores different numeric values dependent on the speed of the type carrier representing different numbers of subscan pulses to be counted by the counter means. The comparator circuit compares the numeric value in the register with the count registered in the counting means. When an equality is detected, the comparator circuit generates a modified reference or sync pulse which is applied to sync control circuitry (41) which checks the character signal produced by the type position circuitry of the printer controls.

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