Patent ID: 6309051
Filing Date: 2001-10-30
Classification: B41J

Abstract:
An ink-jet apparatus employing an ink-jet head having a plurality of heaters corresponding to one ejection opening, and ejecting ink from said ink-jet head to a printing medium, comprising:driving means for applying a preceding pre-pulse, which does not cause ink ejection, and a subsequent main pulse, following the preceding pre-pulse, which generates a bubble for ejecting ink;ejection amount mode setting means for setting an ejection amount mode by selecting at least one heater to be supplied with the subsequent main pulse from among said plurality of heaters; andpre-pulse control means for controlling said driving means to control application of the preceding pre-pulse in respective ejection amount modes set by said ejection amount mode setting means, on a basis of information relating to an ink temperature of the ink-jet head.