PURPOSE: To prevent the mismatching of the set mode of a printer and the gradation recording characteristics of rolled paper and a printing mistake by the storage side of residue by forming a section to be detected for detecting recording characteristics, a section to be detected for detecting residue and an engaging section for obviating surface-rear erroneous mounting to the end section of a spool main section made of a synthetic resin.
CONSTITUTION: Each section of a spool 2 is shaped integrally by a synthetic resin. When a roll-paper winding body is installed to a rolled-paper mounting section 20, the inserting protruding section 24 of a support member 22 is inserted to the other end 8b of the inserting hole 8 of the spool 2. Since the diameter of one end 8a and the diameter of the other end 8b differs in the inserting hole 8 at theat time, the inserting protruding section 24 cannot be inserted to one end 8a of the inserting hole 8 in the direction opposite to the above- mentioned direction. A detecting section 25 discriminates the gradation recording characteristics of the heat-sensitive roll paper of the roll-paper winding body 1A set up to the roll-paper mounting section 20 and detects the residue of the heat-sensitive rolled paper. Bent sections 26a, 27a are formed to sections near the nose sections of pieces to be pushed 26, 27 respectively, these other end sections and switches 28, 29 are fitted to a switch mounting plate 30, and the recording characteristics of the heat-sensitive roll paper mounted can be discriminated according to which of the switches 28 and 29 a pulse signal is transmitted through.
YUKITA YASUO
HIDACHI AKIO
UMEYAMA KAZUYA
SONE MASAKAZU
FUNAYAMA HIDEHIKO
HIRUUMI YASUSHI
| JP62131846B | ||||
| JP62136453B | ||||
| JPS6036951B2 | 1985-08-23 | |||
| JP55103649B |