UBI EasyCoder 501 – Service Manual
177
24. PRINT QUALITY ADJUSTMENT, cont'd.
24.3
Mechanical Adjustments,
cont'd.
Factory-made Adjustments:
The pressing roller and the rewind roller can be adjusted, so they
become perpendicular to the inner gable of the print unit, by moving
the lower, outer gable. The gable is held by four #T20 Torx screws.
Three of the screws hold the gable to the extruded aluminium
profile that connects the inner and outer gables, whereas the fourth,
centre screw holds a dovetail-shaped plate that fits into a channel in
the profile (see chapter 8.2).
As long as the centre screw is not loosened, the outer gable can be
removed and put back without the adjustment being lost. Readjust-
ment requires a fixture and should not be attempted without such
a device.
The printhead bracket is factory-adjusted in relation to the headlift
shaft by means of oversized holes for the three screws that hold the
two parts together (see chapter 8.8). Adjustment requires a special
fixture and should not be otherwise attempted.
Locking Screw
(retains printhead
alignment!)
#T20 Torx Screws
NOTE!
The ribbon save print unit has no
provision for retaining the pressing
roller alignment when the outer gable
is removed, see chapter 10.6.
