It is recommended to turn the machine on at least once every two weeks, because the machine consumes a considerable amount of ink for periodic maintenance and print head cleaning when turned on after a long period of inactivity. If the power switch is on but the machine is not used, it is recommended to print at least once every two weeks.
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Note the following:
The nozzles of the print-heads may dry out and become clogged. To prevent this, periodically print something. Even if you do not print anything, turn the printer on for a few minutes once a month.
If you do not use the printer for a long period of time, always check if the nozzles are clogged by printing a nozzle check test pattern. Clean the print-heads as necessary, and then begin printing.
If you do not use the printer for a long period of time, printing may not be performed normally even if head cleaning is performed multiple times. If this happens, flush the print-heads. If any nozzles are stilled clogged, turn the power off and do not use the machine for eight hours or longer. If there are air bubbles trapped in the ink, they may be absorbed and normal printing may be possible.
If the machine has not been used recently, it requires time to initialize so cannot start printing immediately. Leave the machine switched on and wait about 4–30 minutes.