Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2006-09-12
2006-09-12
Patel, Vip (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C347S019000, C347S037000
Reexamination Certificate
active
07104625
ABSTRACT:
An object of this invention is to provide an ink jet printing apparatus that can detect a state causing a printing operation failure without adding a sensor and also enhance the ease of handling on the part of the user while keeping an apparatus cost from rising. For this purpose, in a serial type ink jet printing apparatus, a travel range in which the print head can be moved is detected and it is decided whether the detected travel range is a proper travel range. When, for example, the travel range is determined to be less than a preset range, it is decided that there is an obstacle in a path of the print head and a decision result is displayed. When the travel range is determined to be a certain range, it is decided that the ink tank is not properly mounted on the print head and the corresponding indication is made.
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patent: 2004/0113966 (2004-06-01), Chung
Endo Masaaki
Kameda Hirokazu
Kikuta Masaya
Kono Tetsushi
Kuchiki Manabu
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Goldberg Brian J.
Patel Vip
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