专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH0655747A DOT PRINTER 失效
公开(公告)号：JPH0655747A
公开(公告)日：1994-03-01
申请号：JP21144792
申请日：1992-08-07
申请人： BROTHER IND LTD
发明人： IMOTO YASUO , UEDA MICHIO
IPC分类号： B41J2/30 , B41J3/54
摘要： PURPOSE:To prevent an image on a sheet from becoming impaired and at the same time, improve a copying capability by giving the more powerful hammering impact force of one printing wire to the surface of a printing sheet through an ink ribbon, compared to the hammering impact force of the other printing wire which prints data directly on the rear of the printing sheet. CONSTITUTION:When printing wires 3 corresponding to counter-positioned printing heads 1, 2 are driven simultaneously, a control means 25 energizes the solenoid of a printing head 1 with three-amperes of electric current, and the solenoid of a printing head 2 with 2, 1 amperes of electric current. Thus the printing wire 3 of the printing head 2 prints data directly on the rear of a printing sheet 16 at a lower impact value by about 30% than the impact force of the printing wire 3 of the printing head 1. Consequently, it is possible to prevent the printing sheet 16 on the printing head 2 side from becoming impaired.

2. 发明专利

JPH05131650A PRINTING HEAD 失效
公开(公告)号：JPH05131650A
公开(公告)日：1993-05-28
申请号：JP11595992
申请日：1992-05-08
申请人： BROTHER IND LTD
发明人： UEDA MICHIO , KATO YASUAKI
IPC分类号： B41J2/265 , B41J2/235 , B41J2/28
摘要： PURPOSE:To provide a printing head having printing wires enhanced in durability and enabling high speed printing. CONSTITUTION:A nose body 4a through which printing wires pierce is vertically provided to a front yoke 4 on the front side thereof and 24 guide ribs 4b are arranged to the front yoke 4 on the rear side thereof on the circle concentric to the outer periphery of the yoke 4. Further, two hole parts 4d are formed to the rear of the nose body protruding part of the front yoke 4. An arm guide 1 has two protruding parts 1a corresponding to the hole parts 4d and 24 radial guide ribs 1b are formed to the rear of the arm guide 1. The arm guide 1 is temporarily clamped by inserting the protruding parts in the hole parts to be aligned and subsequently bonded by a thermosetting resin adhesive. Printing wire sets 6 are placed to the groove parts formed by the guide ribs 1b, 4b.

3. 发明专利

JPH05104749A PRINTING HEAD DRIVE CONTROL METHOD 失效
公开(公告)号：JPH05104749A
公开(公告)日：1993-04-27
申请号：JP9092292
申请日：1992-04-10
申请人： BROTHER IND LTD
发明人： UEDA MICHIO
IPC分类号： B41J2/30
摘要： PURPOSE:To provide the above printing head drive control methods in which a single dot drive or a continuous dot drive can be brought under a proper secondary bound control and an unevenness in printing density and a ghost in printing can be prevented from occurring. CONSTITUTION:Brake pulses are applied at least after a conduction pulse for driving a single dot and a conduction pulse for driving the last dot of a continuous dot line. The brake pulse to be applied after the conduction pulse for driving the last dot of a continuous line is generated at a timing different from the timing of the brake pulse to be applied after the conduction pulse for driving a single dot.

4. 发明专利

JPH05104747A PRINTING HEAD DRIVE CONTROL METHOD 失效
公开(公告)号：JPH05104747A
公开(公告)日：1993-04-27
申请号：JP29979091
申请日：1991-10-18
申请人： BROTHER IND LTD
发明人： UEDA MICHIO
IPC分类号： B41J2/30
摘要： PURPOSE:To obtain a printing head drive control method in which a single dot drive or a continuous dot drive can be brought under a proper secondary bound control and an unevenness in printing density and a ghost in printing can be prevented from occurring. CONSTITUTION:Brake pulses are applied at least after a conduction pulse for driving a signal dot and a conduction pulse for driving the last dot of a continuous dot line. The conduction time of the brake pulse to be applied after the conduction pulse for driving the last dot of a continuous dot line is set to be shorter than the conduction time of the brake pulse to be applied after the conduction pulse for driving a single dot. In addition, the aforesaid two brake pulses are generated at different timings.

5. 发明专利

JPH0524263A DRIVE CONTROLLER FOR WIRE DOT-TYPE PRINTING HEAD 失效
公开(公告)号：JPH0524263A
公开(公告)日：1993-02-02
申请号：JP20553891
申请日：1991-07-22
申请人： BROTHER IND LTD
发明人： UEDA MICHIO
IPC分类号： B41J2/51
摘要： PURPOSE:To prevent laterally continuous 2 dots from becoming 1.5 times as thick as those printed at a normal speed when the total number of printing dots is required to be reduced to approximately 2/3 when printing is conducted at a speed 1.5 times a normal speed. CONSTITUTION:When printing is conducted at a speed 1.5 times higher, dot data is developed by a doubling developer 80 so as to be doubled in a lateral direction. After that, a comparator 84 controls the forming of dots so that a dot printed in a previous printing and a further previous printing cannot be formed. At this time, when original printing data of laterally continuous 2 dots is printed at a speed 1.5 times higher, 2 dots are also printed at an interval 1.5 times larger than that in a normal printing (a normal speed). In a conventional method, in the forming of continuous dots, the printing timing of the second or succeeding dot is delayed so as to be shifted rearward. However, in this device, with respect to a dot judged by a history judging part 100 as the last in continuous dots, the printing timing of the last dot is not delayed.

6. 发明专利

JPH02208062A THERMAL PRINTER 失效
公开(公告)号：JPH02208062A
公开(公告)日：1990-08-17
申请号：JP2805089
申请日：1989-02-07
申请人： BROTHER IND LTD
发明人： UEDA MICHIO
IPC分类号： B41J29/36 , B41J2/32 , B41J2/325 , B41J2/35
摘要： PURPOSE:To alter pressure contact force of a thermal head, a voltage applied to a heat generator and a current supplying time in response to print only mode or printing/correcting modes having possibility of erasure by controlling the applied voltage, the supplying time and the force to preset values when the print only mode and the printing/correcting mode are set. CONSTITUTION:When a printing mode setting switch 6 is switched to a print only mode side, a control signal CS1 is output from a CPU 70 to a driving circuit 67 through an I/O port 69, and a thermal head 17 is brought into pressure contact with a platen 11 through a correctable transfer ribbon 50 and a printing sheet 58. Then, a printing process is executed with an applying voltage, a current supplying time and a printing speed stored in memories 92, 94-95. On the other hand, when an operator switches the switch 6 to a printing-correcting mode, the ink of the ribbon 50 is gradually heated and transferred to the sheet 58 in a semisolid state. The adhering strength of the ink to the sheet 58 is weak due to the fast printing speed, and printed in a state that the ink of the ribbon 50 can be easily peeled.

7. 发明专利

JPH05104748A PRINTING HEAD DRIVE CONTROL METHOD 失效
公开(公告)号：JPH05104748A
公开(公告)日：1993-04-27
申请号：JP29979191
申请日：1991-10-18
申请人： BROTHER IND LTD
发明人： UEDA MICHIO
IPC分类号： B41J2/30
摘要： PURPOSE:To obtain a printing head drive control method in which a single dot drive or a continuous dot drive can be brought under a proper secondary bound control, a copying performance is ensured, following properties in printing are improved, and a ghost in printing can be prevented from occurring. CONSTITUTION:A conduction time Ae for driving the last dot of a continuous dot line is set to be shorter than a conduction time A1 for driving a single dot or a conduction time A2 for driving a dot before the last dot of the continuous dot line. In this manner, a secondary bound can be suppressed at the time of driving a continuous dot line and at the time of driving a single dot.

8. 发明专利

JPH03161391A PRINTING APPARATUS 失效
公开(公告)号：JPH03161391A
公开(公告)日：1991-07-11
申请号：JP30263989
申请日：1989-11-20
申请人： BROTHER IND LTD
发明人： FUKUOKA MUTSUO , UEDA MICHIO
IPC分类号： B41J19/18 , B41J29/38 , B41J35/28
摘要： PURPOSE:To prevent empty printing by providing an information means informing that no ribbon cassette is mounted in such a case that a switching means is operated even when a carriage is moved by predetermined quantity by a control means. CONSTITUTION:In such a state that a ribbon cassette is mounted on a carriage, a carriage is moved when a power supply is closed and, by operating a switching means 76 by an operating member, the home position of the carriage is detected. In such a case that no ribbon cassette is mounted on the carriage, the switching means 76 is not operated though the carriage is moved by predetermined quantity in the direction of the home position and the setting of the home position can not be performed. At this time, an information means 116 informs that no ribbon cassette is mounted on the carriage to an operator.

9. 发明专利

JPH04310766A PRINTER 失效
公开(公告)号：JPH04310766A
公开(公告)日：1992-11-02
申请号：JP10390591
申请日：1991-04-09
申请人： BROTHER IND LTD
发明人： UEDA MICHIO
IPC分类号： B41J2/30 , B41J2/505 , G06K15/10
摘要： PURPOSE:To set optimum printing speed by various factors such as kanji/ANK character, and set braking pulse and powering energy most appropriately accordingly. CONSTITUTION:At S1-S4, S6, and S10, the contents of printing are inspected so as to select an optimum setting therefor. Here, in accordance with the contents of the printing, printing speed, first energizing time and subsequent energizing time at printing of dots, braking pulse width, time until the braking pulse generates, and delay time are changed.

10. 发明专利

JPS63170064A THERMAL PRINTER 失效
公开(公告)号：JPS63170064A
公开(公告)日：1988-07-13
申请号：JP117087
申请日：1987-01-07
申请人： BROTHER IND LTD
发明人： IMAMAKI TERUO , YUKI YOSHIAKI , UEDA MICHIO
IPC分类号： B41J23/02 , B41J2/32 , B41J23/00 , B41J23/12 , B41J25/304 , B41J29/36 , B41J35/04
摘要： PURPOSE:To reduce driving load over the entire pressing process, by causing a time shift at a time of increase of resilient deformation between first and second resilient members when a print head and a ribbon stopping section are pressed against a print sheet through an ink ribbon. CONSTITUTION:During correcting operation, cams 58, 108 rotate to the right, and a correction lever 38 rotates on a first cam face 110 of the cam 108 so as to bring a correction plate 98 near to a platen. A thermal head 22 starts stroke on a first cam face 90 of the cam 58 with a delay, and contacts with the platen, then a second cam face 112 causes to start resilient deformation of a plate pressing spring 100, thus transferring to pressing process. Upon completion of pressing process, the thermal head 22 contacts with the platen through an ink ribbon, and pressing is started through the second cam face 92. Then a stable pressing condition is brought out by means of third cam faces 114, 94 where the ink ribbon is pressed against a print sheet and a carriage 10 is moved under this condition so as to make a correction.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式