Damper apparatus and ink jet printer

An ink jet printer comprising:

• a print head configured to eject ink;
• a tank in which the ink to be supplied to the print head is stored;
• a damper apparatus configured to supply the ink supplied from the tank to the print head while suppressing a pressure fluctuation, comprising:
• an ink storage chamber in which the ink is stored;
• a filter configured to allow passage of the ink therethrough while suppressing the passage of the fine particles when the fine particles of the ink are precipitated;
• an ink introducing portion configured to introduce the ink supplied from an outside into the ink storage chamber;
• and
• an ink discharging portion configured to discharge the ink in the ink storage chamber to the outside, wherein
• the filter divides the ink storage chamber into an introducing-side storage chamber communicating with the ink introducing portion and a discharging-side storage chamber communicating with the ink discharging portion, and
• the discharging-side storage chamber is arranged on an upper side of the introducing-side storage chamber in a perpendicular direction,
• the tank in which the ink introduced into the introducing-side storage chamber via the ink introducing portion is stored;
• the print head to which the ink discharged from the discharging-side storage chamber via the ink discharging portion is supplied;
• an ink supply device configured to supply the ink to the ink introducing portion;
• and
• a normal flow channel, which is a flow channel ranging from the tank to the ink introducing portion;
• and
• a circulation flow channel, which is a flow channel ranging from the ink discharging portion to the normal flow channel,
• wherein the ink supply device increases a flow velocity of the ink in a case where the ink is supplied to the ink introducing portion from the ink discharging portion via the circulation flow channel and the normal flow channel in comparison with a case where the ink is supplied to the ink introducing portion from the tank via the normal flow channel.