Seiko LTPH245, Техническое описание

Страница: 10 / 67

1-3

Allow for movement of the FFC when designing the outer case because the FFC will shift 1 to 2
mm from the thermal head moving. Also, design the outer case so that it prevents the paper
feed out from being caught in the platen.

Surface of thermal paper may get scratched by backward feed. The backward feed may cause
paper skew and jams depending on paper roll layout and designing of paper holder. Be sure to
confirm performance with your product before using the backward feed.

To prevent deterioration in printing quality due to backlash of the paper feed system, the motor
should be driven 40 steps in a reverse direction and then 40 steps in the normal direction
during initialization, a time after backward feeding and a time after setting/releasing the platen
block.

If printing at a high print ratio for longer length, non-printing area may be colored. Verify the
performance with your actual device.
For the position in which the
platen block should be fixed,
and the way it is mounted,
follow the instructions shown
in Figure 6-3.
Since the printer mechanism
does not have the function to
prevent paper from sliding,
design the outer case so that
the paper is guarded securely.
Design so that the
paper feed load is
0.49N (50 gf) or
less.
As to the center of the rotation of the
cover of the platen block that is
mounted, follow the instructions
shown in Figure 7-1
.
The lever should be used when removing and
installing the platen block. It should never be
pulled by force.