Ink-jet printer

An ink-jet printer, comprising:

• a conveyor configured to convey a sheet in a conveyance direction;
• a recording head configured to discharge ink droplets from a nozzle, in a sheet facing area facing the sheet conveyed by the conveyor;
• a power supply configured to supply a drive voltage to the recording head;
• an ink receiver;
• a command receiver;
• and
• a controller configured to control the conveyor, the recording head and the power supply to execute:
• determining an ink amount to be discharged toward the ink receiver;
• determining a voltage value of the drive voltage and the number of ink droplets to discharge the determined ink amount to the ink receiver;
• raising the drive voltage of the power supply to the determined voltage value;
• performing a flushing process in which the determined number of ink droplets are discharged toward the ink receiver, under a condition that the command receiver receives a recording command which is an instruction to record an image on the sheet and that raising of the drive voltage has finished;
• performing a printing process, under a condition that the flushing process has finished;
• under a condition that the determined ink amount is not less than a first threshold value, determining the voltage value of the drive voltage such that the drive voltage becomes higher than the voltage value of the drive voltage determined when the determined ink amount is less than the first threshold value, and
• under a condition that the determined ink amount is not less than a second threshold value which is larger than the first threshold value, determining the number of ink droplets such that the number of ink droplets becomes larger than the number of ink droplets determined when the determined ink amount is less than the second threshold value.