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UBI EasyCoder 501 – Technical Manual
RIBBON SAVE DEVICE, cont'd.
Each operation of lifting and lowering the printhead takes 10+2=12
mm (
≈
0.5") of paper/ribbon feed; e.g. at a non-printed area of 20
mm, the actual saving of ribbon will be 8 mm, and at a non-printed
area of 50 mm, the saving will be 38 mm.
To facilitate paper reloading, the pressing roll is coupled to the
headlift so the pressure is released when the printhead is lifted and
the paper can be threaded between the rear drive roller and the
pressing roll.
By default, the Ribbon Save Device is automatically turned on
whenever such a device is fitted. However, ribbon save operation
can be turned off/on at will by means of
RIBBON SAVE OFF
and
RIBBON SAVE ON
instructions, see UBI Fingerprint manuals or the
UBI Direct Protocol Programmer's Guide. There are no adjust-
ments available to the operator.
When the printer is fitted with a Ribbon Save Device, that is turned
off by means of a
RIBBON SAVE OFF
instruction, it is recommended
not to pull back the paper, e.g. by setting up negative Start Adjust
values or issuing negative
FORMFEED
s. Pulling back the paper
increases the risk of ribbon wrinkling and unsatisfactory printout
quality. In case pull back cannot be avoided, test first! Note that this
restriction does not apply when the Ribbon Save Device is turned
on.
When needed, the rear rollers can be cleaned by means of a cloth or
blotting paper slightly moistened with isopropyl alcohol. Allow
parts to dry before using the printer.
The Ribbon Save Device is factory adjusted and no readjustment of
the nuts on the printhead bracket should be attempted, except by an
authorized service technician.
No lubrication is required.
Working Principles, cont'd.
Ribbon Save Control
Maintenance
Do NOT change
the adjustment!
Continued!
