| 摘要 |
PURPOSE:To stabilize printing quality by detecting a discharged dot and causing a nozzle to perform its recovery action by means of a detection signal. CONSTITUTION:A recording control 94 supplies signals PS1, PS2 and PS3 to a controller respectively in accordance with the pressing of a power supply turn ON key, printing start key and a pressure mode setting key. A dot sensor 610 detects colors such as yellow, magenta, cyan and black, transmitting their signals SS3 to the controller 90. If a power supply is turned ON and a request for discharge check is identified by means of a discharge request, e.g. test mode, a print mode is set, discharging all dots of each printing head for checking a missing dot. Then if the missing dot is identified, the recovery action of the nozzle (supply, circulation and pressure modes) is performed, thus repeating said action until an interruption request is made. |
