TEC B-670 Series Maintenance Manual page 48

6. DIAG. TEST OPERATION
When using a label with a length of less than 38 mm:
Generally the minimum label length which is available in cut mode is 38.0 mm. When using
a label with a length of less than 38 mm, the edge of the label may be caught on the print head
during back feed to the print start position after cutting the label gap, causing a improper print
start position.
In this case set the cut position fine adjustment value after calculating the value using the
following formula so that the unprinted label returns to the correct print start position.
However, use of this method will leave one or two printed label(s) between the print head and
the cutter. Feed or print the label(s) to remove them.
(a) Formula for cut position the adjustment value
Cut position fine adjustment value
= (the number of labels left between the print head and the cutter) x (span of label)
= (32.8 mm/label length) x (span of label)
(example)
(b) Example
Cut Position
A
A
A
B
B
B
Fig. 6-10
* Omit the decimals of the value obtained by dividing 32.8 mm by the label length
for one unit.
Span of label : 30.0 mm, Label length : 24.0 mm
(32.8 mm/30.0 mm) x 30.0 mm = 1 x 30.0 mm = +30.0 mm
Print Head Position
32.8 mm
A
A B
A
B
A B
B C
B C
B C
C D
C D
D
C
Print Satrt Position
Idling
B
Printing the first label (A) is completed.
Label A is fed to the cut position and the front gap is cut.
Label B is fed in the reverse direction to the print start
position.
Printing the second label (B) is completed.
Label B is fed to the cut position and the front gap is cut.
Label C is fed in the reverse direction to the print start
position.
To take away label B, label (C) is fed.
Label B is fed to the cut position and the front gap is cut.
Label D is fed in the reverse direction to the print start
position.
6-19
EM18-33017
6.3 PARAMETER SETTING MODE