Canon W7250 - Manual (Page 171)

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Note
IEEE 1394 Expansion Board
This board provides the IEEE 1394 (FireWire) interface for the W7250.
z IEEE 1394 Expansion Board EB-01
z The IEEE 1394 Expansion Board EB-01 is provided as a standard accessory with
the W7200 and does not require installation.
Roll Holder Sets
These sets contain a roll holder and holder stopper, just like the roll holder
and holder stopper on the printer. These optional sets are designed for use
with media of different types and widths. Having more than one type is
convenient for handling differ sizes and types of media.
z Roll Holder Set RH2-31 for W7200
z Roll Holder Set RH2-21 for W7250