Title:
GAP ADJUSTING DEVICE OF PRINTER
Document Type and Number:
Japanese Patent JP2823753
Kind Code:
B2
Abstract:
PURPOSE: To adjust a gap in a non-contact state by providing a reference value detection means, a reference value detection and drive control means and a gap adjusting drive control means and detecting a reference value without bringing those means into contact with a printing surface or paper surface under pressure and performing the positioning control to a gap set value on the basis of the reference value.
CONSTITUTION: A carrier 45 loaded with a printing head 30H is mounted on the carrier guide shaft 41 movably supported on a frame 1 in a reciprocally movable manner and the adjusting cam 61 engaged with the shaft 41 is revolved to move a printing head to adjust a gap. A reference value detection means containing the detection bar member 64 attached to the shaft 41 and the gap sensor 65 fixed and arranged to the shaft 65 and detecting that the gap becomes a reference value on the basis of the relative position of both of them, reference value detection and drive control means 11, 12 rotating a gap motor 60M in a predetermined direction until the reference value is detected and gap adjusting and drive control means 11, 12 revolving the motor 60M until the reference value becomes a gap set value from the position where the reference value is detected are provided.
Inventors:
Takahisa Hirano
Tetsuya Seki
Shinichiro Fujii
Chizora Kosaka
Masanori Takai
Tetsuya Seki
Shinichiro Fujii
Chizora Kosaka
Masanori Takai
Application Number:
JP29024992A
Publication Date:
November 11, 1998
Filing Date:
October 28, 1992
Export Citation:
Assignee:
Tech Co., Ltd.
International Classes:
B41J25/308; (IPC1-7): B41J25/308
Domestic Patent References:
| JP2136272A |
Attorney, Agent or Firm:
Etsuo Nagashima