Canon PR-C151 Operation Manual page 40

Release the lock of Ribbon Cartridge and
and open as illustrated.
Peel off the remaining ribbon from
the supply bobbin.
Dispose of the take up bobbin with
the full used ribbon.
Place the now empty supply bobbin
in the take up side of the cartridge
touse as take up bobbin.
Set new ribbon onto the supply side
of the cartridge.
Peel off the leading tape at the
beginning of new ribbon and put it
onto the empty bobbin.
Attach the center of ribbon to the
center of the bobbin as shown below.
Close and lock the cartridge, turn the take up bobbin shaft some(2-3) turns in
direction as shown by arrow in the figure and set the cartridge to the printer.
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