摘要:
A printer controller in a printer having at least one detachable print device sends data to a host processor that is representative of the characteristics of a presently attached detachable print device and receives commands from the host processor. In response to the received commands, the printer controller controls a printer function according to the characteristics of the attached print device. The received commands include print head driving parameters corresponding to the characteristics of the attached print device. The print head driving parameters may include parameters that modify values of pre-stored print head driving parameters loaded into the printer at the time of manufacture, or the print head driving parameters may include actual parameter values that are registered for use by the printer during actual printout.
摘要:
A color printer driver binarizes continuous tone color print data stored in raster form and stores the binarized data directly into column form, without the intermediary of storage in horizontal raster form, for printout by a print engine having vertically-arranged print elements.
摘要:
A host system for controlling a print head of an image printing device having at least one print head. The system includes the steps of obtaining profile information of the at least one print head, storing the profile parameters in a non-volatile memory, and outputting, upon request, the profile information to a host computer connected to the image printing device, wherein the host computer utilizes the print head profile information to produce compensation parameters which compensate print information to be sent from the host computer to the print head for printing.
摘要:
In an information processing system, a printer driver in a host processor transfers print data to a print buffer in a serial printer having a configuration of one or more print heads. The print head configuration serially scans a predetermined number of print positions of a line and the print buffer for each print head has storage locations corresponding to the predetermined number of print positions. The printer driver determines empty storage locations of the current print head scan and sends print data for the next scan to the determined empty storage locations of the current scan in the print buffer.
摘要:
A system for scheduling cleaning of an ink jet print head loaded in an ink jet printer. The system includes receiving real time/date information from an external source, storing the real time/date information in a volatile memory, storing, in a non-volatile memory, a last cleaning time for at least one print head in the ink jet printer, calculating an elapsed time by subtracting the stored real time/date information from the stored last cleaning time, comparing the calculated elapsed time to a predetermined elapsed time, and controlling the at least one print head to perform a cleaning process in the case the calculated elapsed time is greater than the predetermined elapsed time and storing, in the non-volatile memory, a latest last time for cleaning the at least one print head.
摘要:
An ink jet printing system having a preheating system for preheating ink during non-printing periods. The system receives print data and commands, feeds paper into the ink jet printer in response to the receipt of print data and commands, detects an ambient temperature within the ink jet printer and determines if the ambient temperature is above a predetermined threshold temperature, preheats the ink supplied to a print head in the ink jet printer during feeding of paper in the case the detected ambient temperature is below the predetermined threshold temperature, moves a printer carriage carrying the print head from a non-printing area to a printing area so as to print the print data. During the moving of the carriage from a non-printing area to a printing area, the ambient temperature is again detected and it is determined again if it is below the predetermined threshold temperature and, in the case that it is, the ink supplied to the print head is preheated during the moving of the printer carriage in the non-printing area.
摘要:
A system to perform a wiping operation upon an ink jet print head includes a first motion of the ink jet print head in a first direction to wipe the ink jet print head against a wiping element, and a second motion of the ink jet print head in the first direction to wipe the ink jet print head against the wiping element. A system to wipe an ink jet print head also includes a first motion of the ink jet print head in a first direction against a wiping element to wipe the ink jet print head, and ejection of ink toward the wiping element during the first motion. The wiping element may be a non-planar wave wiper.
摘要:
A method and apparatus for cooling a print head of an ink jet printer before capping includes the steps of determining an ambient temperature, determining a print head temperature, and waiting a predetermined time after receipt of the last print data for the print job, ejecting a predetermined number of ink droplets from nozzles of the print head at a frequency lower than a frequency used for printing, determining a drop in print head temperature caused by ejecting the predetermined number of ink droplets, and repeating the steps of waiting a predetermined time and ejecting a predetermined number of ink droplets until the print head temperature falls below a threshold.
摘要:
A method and apparatus for cooling a print head of an ink jet printer before capping includes the steps of determining an ambient temperature, determining a print head temperature, and waiting a predetermined time after receipt of the last print data for the print job, ejecting a predetermined number of ink droplets from nozzles of the print head at a frequency lower than a frequency used for printing, determining a drop in print head temperature caused by ejecting the predetermined number of ink droplets, and repeating the steps of waiting a predetermined time and ejecting a predetermined number of ink droplets until the print head temperature falls below a threshold.
摘要:
A method and apparatus for cooling a print head of an ink jet printer before capping includes the steps of determining an ambient temperature, determining a print head temperature, and waiting a predetermined time after receipt of the last print data for the print job, ejecting a predetermined number of ink droplets from nozzles of the print head at a frequency lower than a frequency used for printing, determining a drop in print head temperature caused by ejecting the predetermined number of ink droplets, and repeating the steps of waiting a predetermined time and ejecting a predetermined number of ink droplets until the print head temperature falls below a threshold.