|
(11) | EP 1 086 817 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||
| (54) | Printer assembly and printer |
| (57) A printer (1) and a printer assembly (10) of the present invention includes: a line
thermal head (11); a platen roller (12) having surface of high coefficient of friction
for holding a printing paper between the platen roller and the line thermal head to
feed the printing paper; supporting rollers (13a;13b) having surface of low coefficient
of friction, disposed at front and rear of the platen roller along a paper feeding
direction so as to support the platen roller from a side opposed to the line thermal
head; a supporting plate (14) extending along the supporting rollers so as to receive
the surfaces of the supporting rollers from a side opposed to the line thermal head;
and pressurizing means for applying pressure between the supporting plate and the
line thermal head. The platen roller is supported along its longitudinal direction
by the supporting plate via the supporting rollers comprising a small member with
low coefficient of friction. Accordingly, even when the diameter of a platen roller
is small, it is possible to apply sufficient pressure on to the line thermal head,
and thin and compact printer assembly and printer can be provided. |