摘要:
A downsized, low-cost, high-density printhead, a printing apparatus and a printing method using the printhead. Let the number of electrothermal transducers 101 be N, shift register 110 is capable of storing print information corresponding to N/8 electrothermal transducers. First, print information corresponding to the capacity of the shift register 110 is transferred to the printhead. Then, the shifting function of the shift register is stopped to hold the print information. A 3-bit selection signal (SEL) is inputted from input terminal 201 as the print information (DATA). The selection signal is sent to time-divisional logical circuit 103, then N/8 electrothermal transducers are selected, and printing operation based on the input data is performed. This operation is repeated eight times, to complete printing by all the N electrothermal transducers 101.
摘要:
In a print head of this invention, electricity-to-heat converters and a driver circuit (31) for driving these electricity-to-heat converters (29) in accordance with print data are formed on a single board. The board further includes an input/output interface circuit for receiving print data from an external apparatus, a CPU (4) for controlling a printer apparatus, a ROM (5), a RAM (6), an A/D converter, a D/A converter, a timer (10), and the like, and also includes an external element driver for driving a mechanism portion of the printer apparatus.
摘要:
In a print head of this invention, electricity-to-heat converters and a driver circuit (31) for driving these electricity-to-heat converters (29) in accordance with print data are formed on a single board. The board further includes an input/output interface circuit for receiving print data from an external apparatus, a CPU (4) for controlling a printer apparatus, a ROM (5), a RAM (6), an A/D converter, a D/A converter, a timer (10), and the like, and also includes an external element driver for driving a mechanism portion of the printer apparatus.
摘要:
A downsized, low-cost, high-density printhead, a printing apparatus and a printing method using the printhead. Let the number of electrothermal transducers 101 be N, shift register 110 is capable of storing print information corresponding to N/8 electrothermal transducers. First, print information corresponding to the capacity of the shift register 110 is transferred to the printhead. Then, the shifting function of the shift register is stopped to hold the print information. A 3-bit selection signal (SEL) is inputted from input terminal 201 as the print information (DATA). The selection signal is sent to time-divisional logical circuit 103, then N/8 electrothermal transducers are selected, and printing operation based on the input data is performed. This operation is repeated eight times, to complete printing by all the N electrothermal transducers 101.