Ink-jet printer having a head supporting member rotatable around

Details Ink-jet printer having a head supporting member rotatable around Ink-jet printer having a head supporting member rotatable around

1998-05-22

2000-11-21

Yockey, David F.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2300

Patent

active

061492620

ABSTRACT:
An ink jet printer includes a rotary drum having a peripheral surface for holding a paper sheet, a print head for printing an image on the paper sheet held on the peripheral surface by jetting ink to the paper sheet, and an elevator mechanism for setting the print head to a printing position close to the peripheral surfice at a time of printing and to a non-printing position farther from the peripheral surface than the printing position along a normal line of the peripheral surface at a time of maintenance. Particularly, the elevator mechanism includes a pair of guide rails set parallel to the normal line of the peripheral surface, a slider unit rotatably holding the print head and slidably attached to the guide rails, and a driving section for moving the slider unit up and down. The slider unit includes a spindle, a head support member rotatable about the spindle by a rotational force applied due to a weight of the printhead, and a posture regulator for regulating a posture of the print head with respect to the guide rails against the rotational force.

REFERENCES:
patent: 4227219 (1980-10-01), Takemoto
patent: 4860032 (1989-08-01), Niemeyer, III
patent: 5055861 (1991-10-01), Murayama et al.
patent: 5731829 (1998-03-01), Saito et al.
patent: 5871292 (1999-02-01), Johnson et al.
Patent Abstracts of Japan, vol. 017, No. 286 (M-1422), Jun. 2, 1993 & JP 05-016488 A (NEC Corp.) Jan. 26, 1993--Abstract.
Patent Abstracts of Japan, vol. 018 No. 602 (M-1705), Nov. 16, 1994 & JP 06-227086 A (OKI Electric Ind. Co., Ltd.)--Abstract.

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