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1. 发明专利

JPH0358879A PRINTER EQUIPPED WITH ALARM/MAINTENANCE HISTORY DATA DISPLAY FUNCTION 失效
公开(公告)号：JPH0358879A
公开(公告)日：1991-03-14
申请号：JP19555589
申请日：1989-07-27
申请人： NEC CORP , NEC DATA TERMINAL LTD
发明人： IGAWA HARUO , TAKAGI KAZUYA
IPC分类号： B41J29/46
摘要： PURPOSE:To utilize alarm/maintenance history data as data for tuacing a cause at the time of the generation of trouble or performing maintenance work under the optimum condition by accumulating alarm/maintenance data in an alarm/ maintenance history data memory and displaying the same on an alarm/ maintenance history data display circuit if necessary. CONSTITUTION:The alarm data detected by an alarm detection circuit 2 is automatically written in an alarm/maintenance history data memory 6 and maintenance data is inputted from an input part 5 by a maintenance man to be written in the alarm/maintenance history data memory 6. The maintenance man or an operator reads the alarm/maintenance data from the alarm/ maintenance history data memory 6 if necessary and displays the same on an alarm/maintenance data display circuit 4. As a result, the cause of intermittent trouble can be tuaced or optimum maintenance work can be executed.

2. 发明专利

JPH0316750A THERMAL PRINTER 失效
公开(公告)号：JPH0316750A
公开(公告)日：1991-01-24
申请号：JP15379189
申请日：1989-06-15
申请人： NEC CORP
发明人： TAKAGI KAZUYA
IPC分类号： B41J2/32 , B41J2/365
摘要： PURPOSE:To automatically correct the dispersion of a temperature sensor at the replacement of a head to obtain an optimum printing density by providing a detachable reference temp. sensor, a comparison circuit, a reference temp. selection switch, a nonvolatile error memory circuit, and a correction data operation circuit. CONSTITUTION:A comparison circuit 5 compares an output of an A/D converter 3 of a reference temp. sensor 1 with an output of an A/D converter 4 of a head temp. sensor 2. The result is stored in a nonvolatile error memory circuit 7 on an output 6a when a reference sensor selection switch 6 is set to a reference sensor available side. The reference temp. selection switch 6 is set to a reference sensor available side when the reference temp. sensor 1 is mounted at the replacement of a head and set to a reference sensor unavailable side when the writing to the nonvolatile error memory circuit 7 is completed. An output 7a of the nonvolatile error memory circuit 7 is inputted to a correction data operation circuit 8. The output of the A/D converter 4 is connected to the other input terminal of the correction data operation circuit 9. An output 8a thereof is inputted to a PCONT terminal of a correction circuit 9. Depending on this value, the pulse width of an output PCONT terminal of the correction circuit 9 is determined and added to a head driver 10 to drive a thermal head 11.

3. 发明专利

JPS63194966A HAMMER DRIVE CONTROL DEVICE OF LINE PRINTER 失效
公开(公告)号：JPS63194966A
公开(公告)日：1988-08-12
申请号：JP2852287
申请日：1987-02-09
申请人： NEC CORP
发明人： TAKAGI KAZUYA
IPC分类号： B41J9/44 , B41J9/48
摘要： PURPOSE:To change an electric current applied to a printing hammer for optimum printing and improve printing quality and the life of an ink ribbon by providing an error detection means to compare outputs of a printing density detection circuit and a reference density generation circuit for determination and a hammer current control circuit to change the current to a printing hammer in accordance with the content of the error detection output. CONSTITUTION:The printing results which are output through printing on a printing paper 28 are detected by a printing density detection circuit 17 and transmitted to an error detection circuit 18. In the meantime, a density value required for predetermined optimum printing is output from a reference printing density generation circuit 16, and transmitted to the error detection circuit 18. The error detection circuit 18 compares the values obtained by the printing density detection circuit 17 with the reference printing density generation circuit 16, and transmits its difference to a hammer current control circuit 19. The hammer current control circuit 19 adds a value such as reducing an electric current supplied to a hammer coil 26, and when the density of printing results printed by the output of the error detection circuit 18 is higher than a reference printing density, adds a value such as increasing the current, while when the density is lower, to an ICONT terminal of a hammer drive circuit 21 respectively. Thus the current supplied to the hammer coil changes.

4. 发明专利

JPS62236778A PRINTING CONTROL DEVICE OF LINE PRINTER 失效
公开(公告)号：JPS62236778A
公开(公告)日：1987-10-16
申请号：JP8054986
申请日：1986-04-07
申请人： NEC CORP
发明人： TAKAGI KAZUYA
IPC分类号： B41J29/46 , B41J9/54 , B41J29/20
摘要： PURPOSE:To minimize recovery work when printing faults such as the omission of a word is generated, by counting the number of printing lines and performing test printing automatically when the counted number of printing lines reach the definite number of lines. CONSTITUTION:A line counter circuit 1 is reset to zero when a power source is turned on and, thereafter, and is incremented by +1 each time one line is printed. When the line counter circuit 1 reaches the predetermined number of lines, a test printing demand signal 1a is applied to a test printing control circuit 2. The width of the printing paper 11 mounted to a line printer is set by a paper width setting switch 13. When the data of one line is sent to a printing data memory 5, printing operation is applied only to a printing figure to which the printing paper is mounted and, because the printing to a printing figure to which no printing paper is mounted is prohibited by a blank code, blind printing can be prevented and optimum test printing matched with mounting state of the printing paper is performed.

5. 发明专利

JPS6132780A Controlling apparatus for driving of ink ribbon 失效
标题翻译：用于驱动墨盒的控制装置
公开(公告)号：JPS6132780A
公开(公告)日：1986-02-15
申请号：JP15613084
申请日：1984-07-26
申请人： Nec Corp
发明人： TAKAGI KAZUYA
IPC分类号： B41J17/14
CPC分类号： B41J17/14
摘要： PURPOSE:To enhance the service life of an ink ribbon without making the initial feed direction of the ink ribbon constant, by providing a circuit for judging the address content of a microprocessor, a special timing circuit and an initial feed direction determination control circuit. CONSTITUTION:A microprocessor 300, an address judge circuit 301, a timing generation circuit 302 and an initial feed direction determination control circuit 305 are added to a conventional ink ribbon driving control apparatus. The timing generation circuit 302 outputs one signal before the feed of an ink ribbon is started at first after a power source is closed. The initial feed direction determination control circuit 305 indicates the initial feed direction of the ink ribbon to a reversal flip-flop circuit 202 by the signals from the address judge circuit 301 and the timing generation circuit 302.
摘要翻译：目的：通过提供用于判断微处理器的地址内容的电路，专用定时电路和初始进给方向确定控制电路，来提高墨带的使用寿命，而不使墨带的初始进给方向恒定。构成：将一个微处理器300，一个地址判断电路301，一个定时产生电路302和一个初始馈送方向确定控制电路305加到传统的色带驱动控制装置上。定时产生电路302在电源关闭之后，首先开始进行墨带的供给之前输出一个信号。初始进给方向确定控制电路305通过来自地址判断电路301和定时产生电路302的信号来指示墨带到反转触发器电路202的初始进给方向。

6. 发明专利

JPH0375186A INK RIBBON DRIVING CONTROLLER 失效
公开(公告)号：JPH0375186A
公开(公告)日：1991-03-29
申请号：JP21224289
申请日：1989-08-18
申请人： NEC CORP
发明人： TAKAGI KAZUYA
IPC分类号： B41J17/14 , B41J33/14
摘要： PURPOSE:To improve printing quality and life of an ink ribbon by making the initial feed direction of the ink ribbon not constant by a method wherein an initial feed direction deciding control circuit which indicates the feeding direction of the ink ribbon to an inverted flip-flop circuit by inputting output signals of a positive negative deciding circuit and a timing generation circuit, is established. CONSTITUTION:An input AC power source 401, a positive nagative deciding circuit 301, a timing generation circuit 302, and an initial feed direction deciding control circuit 305 are further added to this driving controller. The positive negative deciding circuit 301 inputs sine wave alternating current 401a, outputs 'high' (logic 1) to a line 301a for the positive half cycle period of the sine wave alternating current, and outputs 'low' (logic 0) to the line 301a for the negative half cycle period with 50% probability. The timing generation circuit 302 is composed of a flip-flop 303 and an AND gate 304. The initial feed direction deciding control circuit 305 is composed of an AND gate 305 and an OR gate 307, which inputs output signals of the ribbon feed direction memory circuit 301 and the timing generation circuit 302, and indicates the initial feed direction of the ink ribbon to a reversal flip-flop 202.

7. 发明专利

JPH02303876A PRINTING CONTROL APPARATUS OF LINE PRINTER 失效
公开(公告)号：JPH02303876A
公开(公告)日：1990-12-17
申请号：JP12422789
申请日：1989-05-19
申请人： NEC CORP , NEC DATA TERMINAL LTD
发明人： IGAWA HARUO , TAKAGI KAZUYA
IPC分类号： B41J29/46 , B41J9/38
摘要： PURPOSE:To extend the life of all of a printing hammer, a type and an ink ribbon by providing constitution containing a test data generating circuit generating test data to be printed by the indication of a test printing control circuit. CONSTITUTION:When printing of 60 lines is performed to one page by test printing and the residual six lines are subjected only to line feed and printing is performed to one line between the 10-th figure and 99-th figure of a printing hammer 11, a printing data indicating switch 36 is operated to supply printing data 37 to a test printing control circuit 35. Whereupon, the test printing control circuit 35 supplies a control signal 38 to a test printing data generating circuit 39 to emit an order so as to generate a blank code in the first - ninth line and the 100-th-132-th line and a printing data code in the tenth - 99-th line. When said signal 38 is sent to a printing data memory 21 as a test printing data code 41 to send the data corresponding to one line, printing is performed only to the printing figure to which printing paper 13 is mounted. Therefore, empty striking can be prevented and the life of all of the printing hammer, a type and an ink ribbon can be extended.

8. 发明专利

JPH0250875A PRINTING CONTROLLER IN LINE PRINTER 失效
公开(公告)号：JPH0250875A
公开(公告)日：1990-02-20
申请号：JP20124888
申请日：1988-08-12
申请人： NEC CORP , NEC DATA TERMINAL LTD
发明人： SUGAYA HIROSHI , TAKAGI KAZUYA
IPC分类号： B41J29/46 , B41J29/50
摘要： PURPOSE:To automatically execute a test printing adaptive to a paper loading state by every fixed number of lines by providing a line counter circuit, a paper width detection mechanism, a test printing control circuit, and a test data generation circuit. CONSTITUTION:When a line counter circuit 1 reaches the predetermined number of lines, a test printing request is added to a test printing control circuit 2 through a signal line 1a, and the line counter circuit 1 is reset to zero. On the other hand, a paper width detection mechanism 13 detecting the (horizontal) width of printing paper 11 set to a line printer adds this paper width information to the test printing control circuit 2 through a line 13a. Then, the test printing control circuit 2 instructs the generation of a printing data code based on the paper width information to a test data generation circuit 4 through a signal line 2a. The test data generation circuit 4 generates a printing data code and a blank code and transmits them to a printing data memory 5 via a signal line 4a. When the data for one line is transmitted to the printing data memory 5, a printing action is executed only on printing digits loaded with the printing paper.

9. 发明专利

JPS6377774A PRINTING CONTROLLER FOR LINE PRINTER 失效
公开(公告)号：JPS6377774A
公开(公告)日：1988-04-07
申请号：JP22111886
申请日：1986-09-19
申请人： NEC CORP
发明人： TAKAGI KAZUYA
IPC分类号： B41J29/46 , B41J29/393
摘要： PURPOSE:To enable optimal test printing by designating a printing column by means of a switch according to the width of a print sheet attached to a line printer, and generating test data matched to the sheet. CONSTITUTION:When a test printing is executed, a column to be printed is designated by the attaching state of a print sheet 11 by a printing column designation switch 15. Then, information 15a is applied to a test printing control circuit 2. The control circuit 2 controls the generation of test printing data on the basis of a column to be printed. That is, a signal 2a is so supplied and designated to a test printing data generation circuit 4 to generate a printing data code to the column to be printed. The generation circuit 4 generates a blank code in a column except the column to be printed and a printing data code in the column to be printed, and feeds the signal to a printing data memory 5. When data of one column are fed to the memory 5, a printing operation is executed only on the column to be printed attached with a print sheet.

10. 发明专利

JPS61262164A PRINTING CONTROL APPARATUS 失效
公开(公告)号：JPS61262164A
公开(公告)日：1986-11-20
申请号：JP10426885
申请日：1985-05-16
申请人： NEC CORP
发明人： TAKAGI KAZUYA
IPC分类号： B41J29/20 , B41J29/46
摘要： PURPOSE:To automatically perform test printing at every definite number of lines, by providing a line counter circuit, a test printing control circuit and a test data generation circuit. CONSTITUTION:In a line printer, when a line counter circuit 1 reaches the predetermined number of lines, a test printing command is applied to a test printing control circuit 2. When printing paper 11 is mounted between the tenth figure and 120-th figure of a printing hammer 10, a paper width detection mechanism applies paper width information to the test printing control circuit 2 which, in turn, orders test printing data to a test data generation circuit 4 so that blank codes are generated in 1-9 figures and 121-132 figures and printing data codes are generated in 10-120 figures. The test data generation circuit 4 generates codes as commanded to send the same to a printing data memory 5 and, when one line data is sent thereto, printing operation is performed.

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