Carl Valentin Spectra II, Service Manual

Page: 37 / 76

Spectra II Adjustments, settings and alignments
09.16 Serviceanleitung 37
6.5 Adjusting the ribbon rewinder/unwinder
B
A
B
A
Figure 17
Due to the many different transfer ribbon variants regarding roller
width, length and qualities it is necessary to provide the possibility to
set transfer ribbon tension.
The transfer ribbon tension is to set in such way that no wrinkles in the
ribbon appear but it is transported in the same way as the labels.
When using a too high ribbon tension this results usually in an
excellent run of the transfer ribbon but this could lead to streaks onto
the label or to a rip of ribbon particularly with narrow roles.
Ex factory the role tension is set to a transfer ribbon 110 mm width
and standard quality. As approximate values for the factory setting the
following can be accepted:
Transfer ribbon unwinder:
Distance of screw head (B) to roller face (A) = 2 mm
Transfer ribbon rewinder:
Distance of screw head (B) to roller face (A) = 4 mm
Tighten hex. head screw (B) = Increasing transfer ribbon tension
Loosen hex. head screw (B) = Reducing transfer ribbon tension