Patent ID: 8287119
Filing Date: 2012-10-16
Classification: B41J

Abstract:
1. An ink jet printer comprising: a platen including an attraction portion configured to attract a sheet to be printed and a collection opening for collecting ink discharged outside the sheet; a negative pressure generator configured to be used in common to generate a negative pressure to be supplied to each of the attraction portion and the collection opening; a first duct configured to connect the negative pressure generator and the attraction portion; a second duct configured to connect the negative pressure generator and the collection opening; and an adjustment mechanism configured to change a negative pressure to be supplied to the attraction portion through the first duct and a negative pressure to be supplied to the collection opening through the second duct, wherein the adjustment mechanism includes an aperture mechanism configured to change an opening area of a part of the second duct to adjust a negative pressure to be supplied to the collection opening through the second duct, and wherein the second duct merges with the first duct at a half way thereof, a part of the second duct shares a part of the first duct, and the aperture mechanism is disposed near a merging position where the first duct merges with the second duct.