| US 7,338,154 B2 | ||
| Image recording apparatus | ||
| Takashi Hasebe, Sagamiko-machi (Japan); Saburo Shimizu, Hachioji (Japan); Takeo Arai, Hachioji (Japan); Satoshi Masumi, Hino (Japan); Tetsu Sekine, Sagamihara (Japan); and Shuta Hamada, Hachioji (Japan) | ||
| Assigned to Konica Minolta Holdings, Inc., Tokyo (Japan) | ||
| Filed on Mar. 23, 2004, as Appl. No. 10/806,155. | ||
| Claims priority of application No. 2003-081902 (JP), filed on Mar. 25, 2003; and application No. 2003-081905 (JP), filed on Mar. 25, 2003. | ||
| Prior Publication US 2004/0189771 A1, Sep. 30, 2004 | ||
| Int. Cl. B41J 2/01 (2006.01) | ||
| U.S. Cl. 347—102 [347/101] | 4 Claims |
| 1. An image printing apparatus, comprising:
a conveyance-printing section for printing on a recording medium sheet;
a first printing device including a plurality of first printing heads mounted above the conveyance-printing section and staggered
perpendicular to a conveyance direction of the recording medium sheet for jetting a first set of image-setting ink drops onto
the recording medium sheet for printing;
a second printing device including a plurality of second printing heads mounted above the conveyance-printing section and
staggered perpendicular to the conveyance direction of the recording medium sheet for jetting a second set of image-setting
ink drops, respectively, onto the recording medium sheet for printing, the second printing device arranged downstream from
the first printing device with respect to the conveyance direction of the recording medium sheet;
a first light radiating device including a plurality of first light sources mounted above the conveyance-printing section
and arranged downstream from the first printing device and upstream from the second printing device with respect to the conveyance
direction of the recording medium sheet for radiating ultraviolet rays to harden surfaces of the first set of image-setting
ink drops jetted from the first printing device before the second set of image-setting ink drops are jetted from the second
printing device; and
a second light radiating device including a plurality of second light sources mounted above the conveyance-printing section
and arranged downstream from the second printing device with respect to the conveyance direction of the recording medium for
radiating ultraviolet rays to harden surfaces of the second set of image-setting ink drops jetted from the second printing
device, and to completely harden the first set of image-setting ink drops previously jetted from the first printing device,
wherein the plurality of first light sources and the plurality of second light sources are staggered perpendicular to the
conveyance direction of the recording medium sheet and correspond to each of the plurality of first printing heads and the
plurality of the second printing heads, respectively.
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