JPS5587594A - Method of detecting inverted printing in double-face printing operation - Google Patents

Method of detecting inverted printing in double-face printing operation

Info

Publication number
JPS5587594A
JPS5587594A JP16248478A JP16248478A JPS5587594A JP S5587594 A JPS5587594 A JP S5587594A JP 16248478 A JP16248478 A JP 16248478A JP 16248478 A JP16248478 A JP 16248478A JP S5587594 A JPS5587594 A JP S5587594A
Authority
JP
Japan
Prior art keywords
printing paper
detecting
printing
marking
register
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16248478A
Other languages
Japanese (ja)
Inventor
Haruo Kato
Mitsuo Yoshimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP16248478A priority Critical patent/JPS5587594A/en
Publication of JPS5587594A publication Critical patent/JPS5587594A/en
Pending legal-status Critical Current

Links

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)

Abstract

PURPOSE: To prevent printing paper printed at its back surface from being fed to the reverse direction, by detecting a register detecting mark or marginal space of printing paper at the position to be detected photoelectrically, in synchronism with intermittent register marking motion by means of photoelectric detectors.
CONSTITUTION: Retainer plate 2 is lowered onto printing paper 11 which is carried on feeder board 3 of paper feeding section and has come into stopper 7, and left- side position of the printing paper is determined by register marking roller 12. Through detection of detecting mark 6 printed on the back of printing paper by photoelectric detecting means 4, 5 of a marking means located on side A in the drawing , it is confirmed that orientation of printing paper 11 is correct, while printing operation stopping signal from light receiving means 4 is kept OFF. In case that orientation of printing paper 11 is reverse, on the other hand, detecting mark 6 is not detected by detectors 4, 5 of the register marking means located on side A since the detecting mark is located on the side of marking means B on the opposite side of photoelectric detecting means 4, 5 of marking means A, so that printing operation stopping signal is turned ON to stop operation of the paper feeding section of the printer.
COPYRIGHT: (C)1980,JPO&Japio
JP16248478A 1978-12-27 1978-12-27 Method of detecting inverted printing in double-face printing operation Pending JPS5587594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16248478A JPS5587594A (en) 1978-12-27 1978-12-27 Method of detecting inverted printing in double-face printing operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16248478A JPS5587594A (en) 1978-12-27 1978-12-27 Method of detecting inverted printing in double-face printing operation

Publications (1)

Publication Number Publication Date
JPS5587594A true JPS5587594A (en) 1980-07-02

Family

ID=15755484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16248478A Pending JPS5587594A (en) 1978-12-27 1978-12-27 Method of detecting inverted printing in double-face printing operation

Country Status (1)

Country Link
JP (1) JPS5587594A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7635128B2 (en) * 2003-12-17 2009-12-22 Ryobi Ltd. Sheet positioning apparatus in a sheet feeding section of a printing press
JP2013136200A (en) * 2011-12-28 2013-07-11 Komori Corp Sheet top/bottom direction correctness determination method and printing machine using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7635128B2 (en) * 2003-12-17 2009-12-22 Ryobi Ltd. Sheet positioning apparatus in a sheet feeding section of a printing press
JP2013136200A (en) * 2011-12-28 2013-07-11 Komori Corp Sheet top/bottom direction correctness determination method and printing machine using the same

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