Abstract:
A printing head has a plurality of heater boards, each of which includes a shift register to which printing data and selection data for selecting preheating pulse signals are applied as inputs, a latch circuit for latching the printing data, a selection-data latch circuit for latching the selection data, a selection circuit for selecting any one of a plurality of preheating pulse signals inputted in accordance with the latched selection data, and a plurality of heating resistors driven by the printing data or preheating pulse signals. Correction data, obtained by a head correcting apparatus, for performing printing at an average density by correcting the characteristics of each heater board is stored in a memory of the printing head. A printing apparatus decides the selection data in accordance with the correction data and sets the selection data in the selection-data latch circuit.
Abstract:
To provide an image or the like which can easily record a large amount of information without the lamination of a large number of colorant layers, and which hardly allows forgery, alteration, or the like. Provided is an image formed by overlapping multiple ink layers, in which a first ink layer is formed on a recording material by means of a first ink having fluorescent emission property, a second ink layer is formed on the first ink layer by means of a second ink, and the first ink layer is exposed in a dotted manner on the second ink layer.
Abstract:
An ink containing apparatus (1) for containing ink includes a negative pressure producing material (3); a first container for containing the negative pressure producing material, the first container having an air vent (13) and a supply port (2) for supplying the ink out; a second container (6) for containing ink; a communication part (8) for communication between bottom portions of the first and second containers; and ribs (5,61) for introducing ambient air adjacent the air vent for introducing air into the communication part.
Abstract:
The present invention provides an ink-jet head having a plurality of heaters (102,103) for one ejection outlet (101), wherein the heaters and the outlet are disposed so as to satisfy a specific relationship, and thereby errors in the path of ejected ink droplets concerning the driving positions of the heaters can be restricted.
Abstract:
Employing a multi-value heater which can obtain high level gradation, a circuit construction can be simplified, and compact head can be realized. Therefore, corresponding to a plurality of ejection openings, a plurality of heating elements (201(1)... 201(n)) are provided corresponding thereto. The heating elements (201(1)... 201(n)) are supplied selection signal so as to be driven selectively.
Abstract:
An ink containing apparatus (1) for containing ink includes a negative pressure producing material (3); a first container (4) for containing the negative pressure producing material, the first container having an air vent (13) and a supply port (2) for supplying the ink out; a second container (6) for containing ink; a communication part (8) for communication between bottom portions of the first and second containers; and ribs (5,61) for introducing ambient air adjacent the air vent for introducing air into the communication part.
Abstract:
An ink jet head (100) for ejecting ink, has an ink ejecting portion (101) having an ink ejecting port formed thereon so as to eject ink through the ink ejecting port, a positioning portion (104) for definitely determining the position of the ink jet head (100) relative to an apparatus using the ink jet head (100) when the ink jet head (100) is fitted to the apparatus, an ink supplying portion (102) adapted to be connected to ink supplying unit while ink is supplied to the ink jet head (100), and an electric connecting portion (103) adapted to be electrically connected to an electric connecting portion on the apparatus side so as to send and receive signals, the positioning portion (104), the ink supplying portion (102) and the electric connecting portion (103) are disposed on a different surface from a surface on which the ink ejecting portion (101) and at least one of the electric portion (103) and the ink supplying portion (102) is disposed on an opposite side surface to a surface on which the positioning portion (104) is disposed.