Carl Valentin Spectra series, Инструкция по эксплуатации

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Adjustments, settings and alignments Spectra series
30 Service instructions 1108
5.3 Position of printhead (Corner Type)
Complete the following printhead settings to achieve the best possible
print image:
⇒
Align the heating line with the highest point of the print roller.
Density of the print image is the greatest at this point.
⇒
Set the parallelism of horizontal lines with the edge of the label.
CAUTION!
The printhead assembly can be damaged.
Attempting to adjust the printhead when the fixing screw (B + J)
is tight can lead to defects at the printhead assembly.
⇒
Always loosen the fixing screw (B + J) before adjusting the
printhead.
Open and close the printhead locking device after each step of
the adjustment.
An important characteristic for a high quality print is the parallelism of
the focal line of the thermal printhead to the pressure roll. Because of
the fact that the position of focal line of the printhead depends on
fluctuations caused by production, it is necessary to adjust the
parallelism.
Figure 15
The form of the Corner Type printhead needs the
setting of parallelism in direction of the adjusting
angle and in horizontal position. It needs a little bit
of experience to know in which direction you have
to adjust the printhead to receive a high quality
printing.
1. Loosen the screws (J or B) with a hexagon key
(size 2.5) about one quarter turn.
2. Adjust the parallelism with the adjusting screws
(H or K).
Clockwise = printhead moves backwards
3. Counter clockwise = printhead moves forwards
4. Adjust the parallelism as long as the printing
result comes up to your full expectation.
5. Fasten again the screws (J or B).
6. Start a print order with approx. 10 labels and
control the correct passage of transfer ribbon.
Parallelism