Abstract: When the time period is night, processing advances to step S13 to set the initialization speed of a line feed motor to the first speed (v1), and to step S15 to execute initialization operation of the line feed motor at the first speed (v1). When the time period is morning or daytime, the processing advances to step S12 to detect a cover open/closed state. When the cover is open, the processing advances to step S13 to set the initialization speed of the line feed motor to the first speed (v1). When the cover is closed, the processing advances to step S14 to set the initialization speed of the line feed motor to the second speed (v2) which is higher than the first speed (v1). The processing advances to step S15 to execute initialization operation of the line feed motor at the second speed (v2).

Abstract: Disclosed is a readily expandable printing apparatus which, despite having only a small memory capacity, is applicable to a number of types of printing processing. On the basis of the type of ink cartridge loaded in the printing apparatus and the content of information that is to be printed, a host computer retrieves from its own memory a program to be run in the printing apparatus. The host computer then transfers the retrieved program to the printing apparatus. The later stores the transferred program in an internal RAM and, when print data has been transferred from the host computer, executes the program.

Abstract: An ink jet printing system is provided which has an ink jet printing apparatus and a host and which alleviates a data processing load on the ink jet printing apparatus, prevents a reduction in a printing operation speed, and realizes a cost reduction. The ink jet printing apparatus of this invention has an ink receiving member for receiving waste ink ejected onto an overrunning area outside edges of a print medium and an accumulated value memory section for storing an accumulated value equivalent to waste ink volumes ejected onto the ink receiving member. The host includes a waste ink volume setting section for obtaining a value equivalent to a waste ink volume and a data sending section for sending data to the ink jet printing apparatus. The accumulated value memory section of the ink jet printing apparatus stores the accumulated value equivalent to waste ink volumes obtained by the host.

Abstract: A printing apparatus of the invention acquires a velocity and an acceleration of a printing medium when a rear end of the printing medium passes through a detection lever. A correction amount for the rear end of the printing medium is determined in accordance with the velocity and the acceleration of the printing medium. The correction amount is a transportation amount of the printing medium during a physical return time after the rear end of the printing medium passes through the detection lever until the detection lever is detected by a sensor. A remaining region from a printing position of a print head up to the rear end of the printing medium is controlled in accordance with the correction amount for the rear end of printing medium.

Abstract: In an inkjet printer having primary power-turn-on means for physically supplying power to the printer and secondary power-turn-on means for bringing the printer into a state where functions are enabled, ink consumption due to a suction recovery processing is reduced. The number of times that the secondary power supply is on is counted. The count value is stored in a non-volatile memory. It is judged whether the count value is above a predetermined value when the secondary power supply becomes on, if yes, the recovery processing is executed. The count value and the contents of the memory are then cleared. The counting is prohibited till primary power supply is off. As the above contents is retained even after the primary power supply is off, necessity of recovery processing when the secondary power supply becomes on is judged based on the state before the primary power supply was off.

Abstract: An ink jet printing system is provided which has an ink jet printing apparatus and a host and which alleviates a data processing load on the ink jet printing apparatus, prevents a reduction in a printing operation speed, and realizes a cost reduction. The ink jet printing apparatus of this invention has an ink receiving member for receiving waste ink ejected onto an overrunning area outside edges of a print medium and an accumulated value memory section for storing an accumulated value equivalent to waste ink volumes ejected onto the ink receiving member. The host includes a waste ink volume setting section for obtaining a value equivalent to a waste ink volume and a data sending section for sending data to the ink jet printing apparatus. The accumulated value memory section of the ink jet printing apparatus stores the accumulated value equivalent to waste ink volumes obtained by the host.

Abstract: A printing apparatus of the invention acquires a velocity and an acceleration of a printing medium when a rear end of the printing medium passes through a detection lever. A correction amount for the rear end of the printing medium is determined in accordance with the velocity and the acceleration of the printing medium. The correction amount is a transportation amount of the printing medium during a physical return time after the rear end of the printing medium passes through the detection lever until the detection lever is detected by a sensor. A remaining region from a printing position of a print head up to the rear end of the printing medium is controlled in accordance with the correction amount for the rear end of printing medium.

Abstract: When the time period is night, processing advances to step S13 to set the initialization speed of a line feed motor to the first speed (v1), and to step S15 to execute initialization operation of the line feed motor at the first speed (v1). When the time period is morning or daytime, the processing advances to step S12 to detect a cover open/closed state. When the cover is open, the processing advances to step S13 to set the initialization speed of the line feed motor to the first speed (v1). When the cover is closed, the processing advances to step S14 to set the initialization speed of the line feed motor to the second speed (v2) which is higher than the first speed (v1). The processing advances to step S15 to execute initialization operation of the line feed motor at the second speed (v2).

Abstract: In an inkjet printer having device for executing recovery processing by ink suction to make the ink ejection state of a printing head favorable, increase in ink consumption due to recovery processing is suppressed properly while maintaining ejection quality. When it is judged that recovery processing is necessary due to exchange of a head or an ink tank, this information is stored in a RAM and an EEPROM. Only before execution of print, recovery processing is executed when it is determined that the recovery processing is necessary based on the information. At the execution, the information is cleared to a recovery unnecessary state. As the information is held in the EEPROM, necessity of the recovery processing after power supply ON is determined based on a recovery processing execution state before the power supply was turned off. Therefore, suction recovery processing is executed without waste at a proper timing.

Abstract: The present invention realizes a liquid ejecting head with increased ejection force and ejection efficiency and also realizes a liquid ejecting head having compatibility with the conventional products, and a head cartridge and a recording system incorporating the liquid ejecting head. A liquid ejecting head or a head cartridge having an ejection outlet for ejecting a liquid, a liquid flow path in fluid communication with the ejection outlet, and an ejection energy generating element, provided corresponding to the liquid flow path, for receiving an electric signal to generate ejection energy, which comprises an energy adjusting device for adjusting an amount of energy supplied from the outside to the liquid ejecting head and utilized as the electric signal.

Abstract: Disclosed is a readily expandable printing apparatus which, despite having only a small memory capacity, is applicable to a number of types of printing processing. On the basis of the type of ink cartridge loaded in the printing apparatus and the content of information that is to be printed, a host computer retrieves from its own memory a program to be run in the printing apparatus. The host computer then transfers the retrieved program to the printing apparatus. The later stores the transferred program in an internal RAM and, when print data has been transferred from the host computer, executes the program.

Abstract: Disclosed is a readily expandable printing apparatus which, despite having only a small memory capacity, is applicable to a number of types of printing processing. On the basis of the type of ink cartridge loaded in the printing apparatus and the content of information that is to be printed, a host computer retrieves from its own memory a program to be run in the printing apparatus. The host computer then transfers the retrieved program to the printing apparatus. The later stores the transferred program in an internal RAM and, when print data has been transferred from the host computer, executes the program.

Abstract: The present invention realizes a liquid ejecting head with increased ejection force and ejection efficiency and also realizes a liquid ejecting head having compatibility with the conventional products, and a head cartridge and a recording system incorporating the liquid ejecting head.

Abstract: Disclosed is a readily expandable printing apparatus which, despite having only a small memory capacity, is applicable to a number of types of printing processing. On the basis of the type of ink cartridge loaded in the printing apparatus and the content of information that is to be printed, a host computer retrieves from its own memory a program to be run in the printing apparatus. The host computer then transfers the retrieved program to the printing apparatus. The later stores the transferred program in an internal RAM and, when print data has been transferred from the host computer, executes the program.

Abstract: In an inkjet printer having means for executing recovery processing by ink suction to make the ink ejection state of a printing head favorable, increase in ink consumption due to recovery processing is suppressed properly while maintaining ejection quality. When it is judged that recovery processing is necessary due to exchange of a head or an ink tank, this information is stored in a RAM and an EEPROM. Only before execution of print, recovery processing is executed when it is determined that the recovery processing is necessary based on the information. At the execution, the information is cleared to a recovery unnecessary state. As the information is held in the EEPROM, necessity of the recovery processing after power supply ON is determined based on a recovery processing execution state before the power supply was turned off. Therefore, suction recovery processing is executed without waste at a proper timing.

Abstract: In an inkjet printer having primary power-turn-on means for physically supplying power to the printer and secondary power-turn-on means for bringing the printer into a state where functions are enabled, ink consumption due to a suction recovery processing is reduced. The number of times that the secondary power supply is on is counted. The count value is stored in a non-volatile memory. It is judged whether the count value is above a predetermined value when the secondary power supply becomes on, if yes, the recovery processing is executed. The count value and the contents of the memory are then cleared. The counting is prohibited till primary power supply is off. As the above contents is retained even after the primary power supply is off, necessity of recovery processing when the secondary power supply becomes on is judged based on the state before the primary power supply was off.

Abstract: A method for standardizing an ink jet recording head is arranged to be capable of utilizing the characteristics of each of recording heads to the maximum, while maintaining the compatibility between them. Particularly, the compatibility is maintained between the novel type recording head whose interior is partitioned into two layers through movable members, and a conventional type recording head. When the conventional type recording head is mounted on a novel type recording apparatus, all the requirements are handled by the novel type recording apparatus side to drive the conventional type recording head under a condition regulated for the conventional type recording head. When the novel type recording head is mounted on a conventional type recording apparatus, it is driven within the capacity of performance of the conventional type recording apparatus. A discriminator for discriminating the kind of mounted recording head is provided for each of the recording apparatuses.

Abstract: When recording original data having a size greater than the height of a recording head, high-quality recording can be performed without unnatural connecting portions by performing smoothing processing for the original data. The original data is divided so as to have a size smaller than the height of the recording head, in such a manner that parts of divided data overlap with each other.

Abstract: A control system for a continuously variable transmission for a motor vehicle has a transmission ratio control valve for controlling the transmission ratio. The transmission ratio is controlled in accordance with a transmission ratio changing rate. At acceleration during low vehicle speed driving, the transmission ratio changing rate is set to a large value so as to quickly increase the transmission ratio.

Abstract: A control system for a continuously variable transmission for a motor vehicle has a transmission ratio control valve for controlling the transmission ratio. The transmission ratio is controlled in accordance with a transmission ratio changing speed. The transmission ratio changing speed is corrected with a coefficient which is determined in accordance with desired transmission ratio changing speed and the difference between desired transmission ratio and actual transmission ratio.