11
Operating instructions
HERMA 400 TROUBLESHOOTING
3.28 US (130519) 147/154
Label web tears a) Backing paper punched. a) Reduce backing paper ten-
sion, reduce pressure of
label-web brake (section
4.1.4).
b) Label remainders clamped
beneath sensing/scanning
unit.
b) Clean sensing/scanning
unit (chapter
10).
c) Paper guide too close to the
label.
c) Adjust paper guide for
width of label web.
d) Label web inserted incor-
rectly.
d) Insert label web according
to description of relevant
component (sections
6.5
and 4.1).
e) Label web tracking. e) Adjust dispensing system
(section
4.1.7).
Backing paper is not wound up a) Friction clutch in the drive
is worn out.
a) Let our service staff
exchange the friction
clutch.
b) Drive belt torn. b) Replace drive belt of bak-
king paper take-up unit.
Labels are placed inaccurately a) Product sensing inaccurate
or defective.
a) Check and correct the
product sensor.
b) Label sensing/scanning
unit loose or defective.
b) Fasten or replace and
adjust the label sensor
(section
4.1.5 / 4.1.6)
c) Pressure roller misadju-
sted, backing paper slips.
c) Correctly adjust pressure
roller (section
4.1.9).
d) Irregular distances bet-
ween labels on backing
paper .
d) Check for regular distances
between labels on label
web, in case of irregular
distances use new label roll.
Malfunction Cause Remedy
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