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2. 发明专利

JPH1029351A TICKET PRINTER 失效
公开(公告)号：JPH1029351A
公开(公告)日：1998-02-03
申请号：JP18763096
申请日：1996-07-17
申请人： OKI FARM WEAR SYST KK , OKI ELECTRIC IND CO LTD
发明人： SHIMADA TSUTOMU , SHIMAKATA MASARU , SEKIZAKI YUICHI , KOBAYASHI KATSUHIKO
IPC分类号： B41J11/42 , B41J7/48 , B41J13/00 , G07B1/06
摘要： PROBLEM TO BE SOLVED: To improve print quality by detecting a position of a medium which is transferred by a first drive system and then is stopped, and controlling a time to be spent from the start of transfer of the medium by a second drive system upto the start of printing by a printing head corresponding to the detected position of the medium. SOLUTION: A position detecting part 26 counts a pulse signal and outputs a signal to such effect that the medium is transported to a position before a printing head 18, to a CPU 25 at the point of time when a specified count value is reached. The CPU 25, upon receipt of the signal, stops the driving of a servo motor 19 through a servo motor drive part 28. In turn, a pulse motor drive part 29 starts the driving of a pulse motor 35. Thus a transport roller is rotated to print the medium while it is transported at low speed. Consequently, if there is an error at the stop position of the medium, the improved print quality of an issued ticket is ensured because it is possible to set the medium invariably to the same line for the start of printing the medium.

3. 发明专利

JPH08258350A CONTROLLER FOR PRINTER 失效
公开(公告)号：JPH08258350A
公开(公告)日：1996-10-08
申请号：JP5914795
申请日：1995-03-17
申请人： SEIKO EPSON CORP
发明人： NAKAYAMA ICHIRO
IPC分类号： B41J7/48 , G01D5/25
摘要： PURPOSE: To effectively detect the reference phase even in the case of using a low-cost LSI by incorporating means for detecting the reference position of a type wheel based on first and second reference signals in timing signal generating means. CONSTITUTION: The detecting board 21 of the controller for a printer rotates in synchronization with a type wheel, a detecting brush 22c detects the phase of the type arranged at the odd number order, and a brush 22e conducts a conductor on the board 21 to give a potential. Conductors P1 to P13 correspond to 0 to thirteenth types, the odd number conductor corresponds to the brush 22c, the even number conductor corresponds a brush 22d, and they are arranged at equal intervals. Since such a structure is provided, the rises of the phase detecting waveforms of two systems corresponding to a plurality of types of a ring state are alternately detected to detect the phase in which the influence of chattering is suppressed.

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