Technicians: Use the Power Cleaning cycle after changing Dampers or Print Head. Air in the system causes Nozzle drop out while printing. This technique facilitates the removal of air from the system. When sufficient vacuum is created, the Printer opens the Valves allowing the ink to “fill the vacuum”. The Power Cleaning cycle closes the Valves that restrict ink flow from the Ink Bays while simultaneously running the Cleaning Pump to build a vacuum on the Print Head Nozzle Plate. The purpose of the Power Cleaning cycle is to remove air from the Negative Pressure Dampers, or air from the Print Head side of the Dampers. This method uses less ink than any other. After the Printer cleans the instructed color pair, it will use the AID Circuitry to determine the appropriate cleaning levels for any remaining missing nozzles on other color pairs. Print a nozzle check, and identify the color pair with the most missing nozzles.Ģ. Cleaning color pairs individually takes more time, but saves Ink.Ĭolor Pair Cleaning: User Menu/MAINTENANCE/CLEANING/CLEAN FOR EACH COLORĬolor pair cleaning is the cleaning method with the most efficient use of ink. In theory the Printer will only clean the color pairs that have missing Nozzles. A color pair is defined as 2 colors that share a Cap.
The Printer always cleans color pairs individually. According the information reported by the AID Circuitry the Printer increases or decreases the strength of the clean-ing cycle appropriately, and only cleans the color pairs that require additional cleaning. When a normal cleaning is activated, the Printer cleans all 5 color pairs, and uses the AID Circuitry to check results. Normal Cleaning: User Menu/MAINTENANCE/CLEANING/NORMAL If different Nozzles are missing after each cleaning cycle, stop cleaning, and print until the air or contaminated ink has been expelled from the Print Head. If the same Nozzles are missing after each cleaning cycle, continue cleaning. It also can cause contaminated (used) ink to be mixed with the “fresh” ink in the Nozzle Plate. This can cause more Nozzles to be missing after a cleaning cycle than before. It is not unusual for the Ink System to “pull back” after a cleaning cycle, drawing air or ink from the Cap into the Print Head Nozzle Plate. However all Cleaning cycles employ a much stronger ink demand (and use) than printing. The Ink System is tuned to the gentle ink flow demanded by regular printing.
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