公开(公告)号：EP1138506A4

公开(公告)日：2002-06-28

申请号：EP99957419

申请日：1999-12-07

申请人： COPYER CO

发明人： FUKUDA MICHITAKA

IPC分类号： B41J11/00 ,  B41J11/06 ,  B41J11/08 ,  B65H9/08 ,  B41J11/02 ,  B65H5/22 ,  B65H5/38

CPC分类号： B41J11/0085 ,  B41J11/06 ,  B41J11/08 ,  B65H9/08

摘要： An ink jet type image forming device comprising a suction fan (11) for sucking from below a platen (12) a print medium (14) that is being conveyed on the platen (12), and a variable control means for variably controlling the suction force of the suction fan (11) according to predetermined conditions. The variable control means has a means that, as a predetermined condition and in each scanning of a head, recognizes presence or absence of the head in a printing region ranging from the printing start position to the printing end position and that controls suction fan such that the suction force is lower when the head is outside the printing region than when it is within the printing region. Alternatively, it has a means that, as a predetermined condition, recognizes the kind of a print medium that has been set and that controls the suction force of the suction fan according to the recognized kind of print medium. Adjustment of the suction force of the suction fan lowers the load on a conveyance motor and generally reduces power consumption and noise.

公开(公告)号：EP1168187A4

公开(公告)日：2003-02-05

申请号：EP00913041

申请日：2000-03-31

申请人： COPYER CO

发明人： FUKUDA MICHITAKA

IPC分类号： G06F3/12 ,  G06F13/38 ,  H04L1/00 ,  H04L7/00 ,  G06F13/42 ,  H04L25/38

CPC分类号： H04L1/0084

摘要： A method of synchronous serial communications and a system for synchronous serial communications are provided for increasing the transfer rate of serial data. In full mode, ordinary synchronous serial communications are carried out. In block mode, serial data of a predetermined length to be transmitted is divided into a plurality of blocks, block information about which block is to go first is transmitted, and the data in the block designated by the block information is then transmitted. In burst mode, the next block information is compared with the previously sent block information, and the coincidence of the two allows the data of the block to be transmitted with block information omitted. Mode identification information indicative of the current transmission mode accompanies data to be transmitted.

公开(公告)号：EP1031421A4

公开(公告)日：2001-12-05

申请号：EP99969063

申请日：1999-09-10

申请人： COPYER CO

发明人： SUGIYAMA YUICHI ,  FUKUDA MICHITAKA

IPC分类号： B41J2/01 ,  B41J2/045 ,  G06K15/10 ,  B41J2/05 ,  G06F3/12

CPC分类号： B41J2/04521 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/04546 ,  B41J2/04573 ,  B41J2/0458 ,  G06K15/10 ,  G06K2215/0077

摘要： The number of signal lines of a cable between a controller and a carriage is small, and the printing timing of each head is adjustable in units each smaller than one pixel. The signal lines include a signal line for serial printing data including printing data arranged in a predetermined order for printing heads, a signal line for a clock corresponding to each bit of the data, a signal line for a signal HDSL [1..0] representing that the printing data included in the serial printing data corresponds to which printing head, and signal lines for the signals for driving the heads. Before transferring data, one slice section corresponding to the time slot for transferring the unit printing data for each head is divided into sections, and further the sections are divided into subsections the number of which is equal to the number of print heads. The transfer of printing data is started from arbitrary subsection independently for each head.

公开(公告)号：EP1177904A4

公开(公告)日：2002-07-10

申请号：EP00909758

申请日：2000-03-21

申请人： COPYER CO

发明人： TAKADA SHINGO ,  FUKUDA MICHITAKA ,  TERASAWA KOJI

IPC分类号： B41J2/175

CPC分类号： B41J2/17566 ,  B41J2/1752 ,  B41J2/17546

摘要： A printer capable of detecting the presence of ink, including whether an ink tank is attached. A detachable ink tank (32) on a carriage (31) includes a prism (32C), and a reflective optical sensor (33) detects the presence of ink depending on the difference in refractive index between the two states, that is, filled and empty. A reflector lever (35), movable in response to the ink tank (32) being attached or detached, is provided on the bottom of an ink tank holder (34). The reflector lever (35) has one end fixed on a lower part of the ink tank and the other end that is a free end consisting of a triangular reflector (35D). The reflector lever (35) is normally urged upward by an elastic member (35A), and it will not direct the reflection toward the sensor (33) in the absence of the ink tank whereas it is deformed in the presence of the ink tank to direct the reflection toward the sensor (33). As a result, the presence of the ink tank is detected.

摘要翻译： 能够检测墨水存在的打印机，包括是否安装墨水盒。 托架（31）上的可拆卸墨盒（32）包括棱镜（32C），并且反射光学传感器（33）根据两种状态之间的折射率差异来检测墨水的存在，即填充和 空。 在墨盒支架（34）的底部设有可随墨盒（32）的装卸而移动的反射杆（35）。 反射杆（35）的一端固定在墨盒的下部，另一端是由三角形反射器（35D）构成的自由端。 反射器杆35通常由弹性构件35A向上推动，并且在不存在墨盒的情况下其不会引导朝向传感器33的反射，而是在存在墨盒的情况下将其变形为 引导反射朝向传感器（33）。 结果，检测到墨盒的存在。

公开(公告)号：EP0974463A4

公开(公告)日：2001-05-23

申请号：EP99901912

申请日：1999-01-29

申请人： COPYER CO

发明人： TAKATA YUTAKA ,  SUGIYAMA YUICHI ,  FUKUDA MICHITAKA

IPC分类号： B41J2/21 ,  B41J2/01 ,  B41J29/393 ,  B41J29/46 ,  G01B11/00 ,  G01N21/88 ,  G01N21/956 ,  H04N1/23 ,  H04N1/403

CPC分类号： B41J29/393

摘要： An ink-jet image forming device such that the test pattern detecting accuracy is improved while using a single photodetector. A binarizing circuit (16) which binarizes the output of a sensor for a test pattern includes a peak holding circuit (82) which follows up slow change of the sensor output, a voltage dividing circuit (83) which divides the held output, and a comparator (84) which converts the sensor output into a binary signal by using the output of the circuit (83) as a threshold.