| US 7,494,200 B2 | ||
| Recording apparatus and recovery control method | ||
| Toshiyuki Chikuma, Kawasaki (Japan); and Jiro Moriyama, Kawasaki (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Feb. 23, 2005, as Appl. No. 11/62,590. | ||
| Claims priority of application No. 2004-053237 (JP), filed on Feb. 27, 2004. | ||
| Prior Publication US 2005/0190219 A1, Sep. 01, 2005 | ||
| Int. Cl. B41J 29/38 (2006.01) | ||
| U.S. Cl. 347—9 | 20 Claims |
| 1. A recording apparatus for effecting recording on a recording material by scanning the recording material with a recording
head for ejecting ink from a plurality of nozzles, comprising:
feeding means for feeding the recording material;
discrimination means for discriminating whether a recording area, on which recording on the recording material fed by said
feeding means is effected with the recording head, is a leading end portion of the recording material or a trailing end portion
of the recording material;
preliminary ejection means for ejecting ink, which is not contributable to image recording, from each of the plurality of
nozzles; and
preliminary ejection control means for controlling said preliminary ejection means so that either a first preliminary ejection
for performing preliminary ejection on the basis of the number of ejections of ink ejected from each of the plurality of nozzles
is performed in the case where a discrimination result by said discrimination means is that the recording area is neither
the leading end portion of the recording material nor the trailing end portion of the recording material, or a second preliminary
ejection for performing preliminary ejection when an elapsed time from a previous second preliminary ejection exceeds a predetermined
time is performed in the case where the discrimination result by said discrimination means is that the recording area is the
leading end portion of the recording material or the trailing end portion of the recording material.
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