Title:
【発明の名称】液体噴射記録装置
Document Type and Number:
Japanese Patent JP2729842
Kind Code:
B2
Abstract:
PURPOSE:To eliminate an unnecessary blank discharge and to obviate a temperature change in a recording head by providing blank discharge control means for setting a driving pattern at the time of recovering operation of energy generators corresponding to discharge ports based on an immediately previous recording image information. CONSTITUTION:A head 5 has energy generators corresponding to discharge ports, and discharges liquid droplets from the ports synchronously with a driving pulse applied from a driving pulse applying circuit 4. A recovering operation for a blank discharge is conducted only for the port which does not record. In this case, recording information is integrated by an integrator 7 at the respective ports, and averaged. Further, a blank discharge pulse number controller 8 determines the number of pulse blank discharges. When a blank discharge signal S2 is input, the blank discharge is conducted in the number of the pulses determined by the controller 8. In the blank discharge pulse number control, blank discharges are conducted at the port which does not discharge is conducted by 1000 times, by 800 times if the integrating and averaging duty is 10%, and not conducted if the duty is 50% or higher.
Inventors:
TAKEKOSHI NOBUHIKO
FUKUSHIMA HISASHI
MIURA YASUSHI
MORIGUCHI HARUHIKO
FUKUSHIMA HISASHI
MIURA YASUSHI
MORIGUCHI HARUHIKO
Application Number:
JP29525789A
Publication Date:
March 18, 1998
Filing Date:
November 14, 1989
Export Citation:
Assignee:
KYANON KK
International Classes:
B41J2/165; B41J2/05; B41J2/12; B41J2/175; (IPC1-7): B41J2/175; B41J2/05
Domestic Patent References:
| JP1127362A | ||||
| JP6219461A | ||||
| JP63252748A |
Attorney, Agent or Firm:
Yasutake Ooto