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    • 2. 发明授权
    • Method and apparatus for detecting the discharge status of inkjet printheads
    • 用于检测喷墨打印头的排放状态的方法和装置
    • US06419341B1
    • 2002-07-16
    • US09559456
    • 2000-04-28
    • Yukio NohataAtsushi SaitoTakeshi KohnoTakashi OnoShinichiro KohriShigeyuki Sugiyama
    • Yukio NohataAtsushi SaitoTakeshi KohnoTakashi OnoShinichiro KohriShigeyuki Sugiyama
    • B41J201
    • B41J25/34
    • Printer performs accurate ink-discharge status detection, dependent upon the type of a printhead attached to the printer, the print mode and the color of ink change, and a facsimile apparatus using the printer. Each time printing based on received facsimile image data for one page of print sheet has been completed, the printhead is moved to a position close to a photosensor, and test ink discharge is performed. At this time, the type of printhead is determined, and whether or not the color printhead is in normally-dischargeable status is judged by comparing a pulsewidth obtained from output from the photosensor with a threshold value selected in accordance with the discrimination result. Otherwise, one of a plurality of threshold values according to print modes and ink colors is read from a ROM, and test ink discharge is performed with respect to corresponding color ink. The result of the discharge is compared with the threshold value. Thus, whether or not the printhead is in normally-dischargeable status is judged with respect to each color ink.
    • 打印机执行精确的排墨状态检测,这取决于连接到打印机的打印头的类型,打印模式和墨水变化的颜色,以及使用该打印机的传真设备。 每次基于接收到的一页打印纸的传真图像数据的打印完成时,打印头移动到靠近光电传感器的位置,并执行测试喷墨。 此时,确定打印头的类型,并且通过将从光传感器的输出获得的脉冲宽度与根据鉴别结果选择的阈值进行比较来判断彩色打印头是否处于正常可放电状态。 否则,从ROM中读取根据打印模式和墨水颜色的多个阈值中的一个,并且相对于相应的彩色墨水执行测试墨水排出。 将放电结果与阈值进行比较。 因此,关于每个彩色墨水判断打印头是否处于正常放电状态。
    • 3. 发明授权
    • Testing for normal print discharge
    • 测试正常打印放电
    • US6056386A
    • 2000-05-02
    • US724480
    • 1996-10-01
    • Yukio NohataAtsushi SaitoTakeshi KohnoTakashi OnoShinichiro KohriShigeyuki Sugiyama
    • Yukio NohataAtsushi SaitoTakeshi KohnoTakashi OnoShinichiro KohriShigeyuki Sugiyama
    • B41J25/34B41J29/393
    • B41J25/34
    • Printer performs accurate ink-discharge status detection, dependent upon the type of a printhead attached to the printer, the print mode and the color of ink change, and a facsimile apparatus using the printer. Each time printing based on received facsimile image data for one page of print sheet has been completed, the printhead is moved to a position close to a photosensor, and test ink discharge is performed. At this time, the type of printhead is determined, and whether or not the color printhead is in normally-dischargeable status is judged by comparing a pulsewidth obtained from output from the photosensor with a threshold value selected in accordance with the discrimination result. Otherwise, one of a plurality of threshold values according to print modes and ink colors is read from a ROM, and test ink discharge is performed with respect to corresponding color ink. The result of the discharge is compared with the threshold value. Thus, whether or not the printhead is in normally-dischargeable status is judged with respect to each color ink.
    • 打印机执行精确的排墨状态检测,这取决于连接到打印机的打印头的类型,打印模式和墨水变化的颜色,以及使用该打印机的传真设备。 每次基于接收到的一页打印纸的传真图像数据的打印完成时,打印头移动到靠近光电传感器的位置,并执行测试喷墨。 此时,确定打印头的类型,并且通过将从光传感器的输出获得的脉冲宽度与根据鉴别结果选择的阈值进行比较来判断彩色打印头是否处于正常放电状态。 否则,从ROM中读取根据打印模式和墨水颜色的多个阈值中的一个,并且相对于相应的彩色墨水执行测试墨水排出。 将放电结果与阈值进行比较。 因此,关于每个彩色墨水判断打印头是否处于正常放电状态。
    • 6. 发明授权
    • Image communication apparatus
    • 图像通信装置
    • US06563607B1
    • 2003-05-13
    • US08778102
    • 1997-01-02
    • Naomi NakamuraToru MaedaHitoshi SaitoMasanori MomoseToru FujinoShinichiro KohriMakoto KobayashiKazuhiro SugawaraSatoshi ImaiYasushi Morimoto
    • Naomi NakamuraToru MaedaHitoshi SaitoMasanori MomoseToru FujinoShinichiro KohriMakoto KobayashiKazuhiro SugawaraSatoshi ImaiYasushi Morimoto
    • H04N100
    • H04N1/32358H04N1/0035
    • In case of reading an original of plural pages and collectively transmitting the successive short length pages as one page, the number of transmitted pages recorded on a transmission record list becomes different from the number of read pages, so that it is difficult for a user to judge, from such list, whether all the pages have been transmitted. In case the number of actually transmitted pages is different from the number of read or received pages stored in the second RAM, the user can select in advance, by a key depression on a keyboard, whether to record both the number of actually transmitted pages and the number of read or received pages stored in the second RAM or to record either one of the numbers, as the number of pages to be recorded on the transmission result list. In case of storing image data of plural pages of original read by a contact sensor in an image memory and collectively transmitting the image data of successive plural pages, stored in the image memory, as one page, judging from the recordable number of lines at the receiving side, a CPU causes a display unit to display both the number of actually transmitted page number and the number of read page included in the transmitted pages.
    • 在读取多个页面的原稿并且将连续的短页面页面一起发送为一页的情况下,记录在传送记录列表上的发送页面的数量与读取的页面的数量不同,因此用户难以 从这样的列表中判断所有页面是否已被传送。 在实际发送的页面的数量与存储在第二RAM中的读取或接收页面的数量不同的情况下,用户可以通过键盘上的按键来预先选择是否记录实际发送的页面的数量和 存储在第二RAM中的读取或接收页面的数量,或将数字中的任何一个记录为要记录在传输结果列表上的页数。 在存储图像存储器中存储由接触式传感器读取的多页原稿的图像数据的情况下,将存储在图像存储器中的连续的多页的图像数据一并发送为一页,从可记录的数量的行 接收侧,CPU使显示单元同时显示发送的页面中包含的实际发送的页面数量和读取页面的数量。
    • 10. 发明授权
    • Communication apparatus having a printer controlling recording in
accordance with a bilateral record correction valve
    • 具有打印机的通信装置,其根据双边记录校正值来控制记录
    • US5819013A
    • 1998-10-06
    • US731672
    • 1996-10-17
    • Toshiki MiyazakiMasanori MomoseShinichiro KohriNaomi NakamuraYasushi Morimoto
    • Toshiki MiyazakiMasanori MomoseShinichiro KohriNaomi NakamuraYasushi Morimoto
    • H04N1/00
    • H04N1/00896H04N1/00278H04N1/00885H04N2201/001
    • A communication apparatus suppresses an unnecessary recovery operation when the communication apparatus is raised from a low power consumption mode to a normal operation mode to shorten a time before a printer unit is ready for printing. When the printer unit wakes up from a sleep mode, a time counted by a recovery timer in a facsimile control unit is sent to the printer unit as time data through a bilateral path. A CPU in the printer unit adds time data stores in an NVRAM at the time of entry of the facsimile apparatus to the low power consumption mode to the sent time data to determine the recovery level based on the sum time data and the recovery operation is executed. When the supply of power to an ink jet printer is stopped to reduce the power consumption, a timer in the printer and a bilateral record correction value deviate so that the recovery operation which is to be executed at an interval of 72 hours cannot be executed at the correct time interval. A non-power-supply time of the printer is notified from the main unit to the printer through a serial communication unit when the power is supplied to the printer next time in stopping the supply of power to the printer for power saving so that the timer in the printer is corrected.
    • 当通信装置从低功耗模式升高到正常操作模式时,通信装置抑制不必要的恢复操作,以缩短打印机单元准备好打印之前的时间。 当打印机单元从睡眠模式唤醒时,由传真控制单元中的恢复定时器计数的时间通过双向路径作为时间数据发送到打印机单元。 打印机单元中的CPU将传真设备进入低功耗模式时的NVRAM中的时间数据存储到发送的时间数据,以基于和时间数据确定恢复级别,并执行恢复操作 。 当停止向喷墨打印机的供电以降低功耗时,打印机中的定时器和双边记录校正值偏离,使得以72小时的间隔执行的恢复操作不能在 正确的时间间隔。 当下次向打印机供电时,打印机的非供电时间通过串行通信单元通知给打印机,停止向打印机供电以节省电能,使定时器 在打印机中更正。