EP0664221A3

A serial printing apparatus controlled by open loop control system.

Abstract

On the basis of an encoder output pulse generated by using a linear encoder film (24) provided along a moving path of a carriage, ink ejection timing is determined. Then, the ink ejection timing is set at a timing derived by dividing a period of the output pulse by three, and the pulse period to be divided is the immediately preceding pulse period. By this, even with open loop control of driving of a carriage motor (22), high precision ejecting position control can be performed.

EP0664221A3, drawing sheet 1
Sheet 1 of 1

Term

Term ended

Projected expiry passed 17 January 2015, 11.7 years ago.

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