Patent ID: 9073354
Filing Date: 2015-07-07
Classification: B41J

Abstract:
1. A control method for a printing device that has a fluid ejection head, a plurality of suction holes disposed in a recording paper conveyance direction opposite the fluid ejection head, and an opening/closing mechanism that opens and closes the plurality of suction holes, comprising: detecting a position of a leading end of the recording paper before starting recording paper conveyance; reading a next recording paper conveyance speed; calculating a delay time for starting the opening/closing mechanism after recording paper conveyance starts based on the position of the leading end of the recording paper and the recording paper conveyance speed; determining a start time when the opening/closing mechanism starts operating based on the delay time; and starting the opening/closing mechanism at the start time and opening the plurality of suction holes; wherein calculating the delay time uses parameter values extracted from a table containing a paper feed length during acceleration, and a paper conveyance acceleration time, at selected conveyance speeds, and a table containing an amount a paper feed motor is driven until the plurality of suction holes open, and a time until the plurality of suction holes open, at each operating speed of the opening/closing mechanism.