Title:
MANUAL PRINTER
Document Type and Number:
Japanese Patent JPH01159271
Kind Code:
A
Abstract:
PURPOSE:To obtain a simple centering mechanism and make a head holder attachable and detachable easily by providing a head holder or a frame either one of which is hook-shaped. CONSTITUTION:A thermal head 1 is attached to a head holder 2. A head holder shaft 4 consists of a head holder containing a head pressing spring 3 inserted in the middle and set with a fixing E clamping ring 25, and is subassembled as a head set. The subassembled head set is attached to a hook-shaped head holder shaft holding part 7b of a frame 7 along an arrow mark B with a head pressing spring 3 set flexible. The combined force of a reactive force from the frame 7 and that from the head holder works in a direction in which the head holder shaft 4 always does not come off the hook-shaped head holder shaft holding part 7b of the frame, by reducing the length 3a of an arm on the frame side 7 of the head pressing spring 3, compared to the length 3b of an arm on the head holder 2 side.
Inventors:
ONODERA KENJI
NAKAYAMA HIROYUKI
NAKAYAMA HIROYUKI
Application Number:
JP31922787A
Publication Date:
June 22, 1989
Filing Date:
December 17, 1987
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
B41J3/28; G11B23/00; (IPC1-7): B41J3/28
Attorney, Agent or Firm:
Mogami (1 person outside)
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