Epson 4500 - Manual (Page 19)

Introduction
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Pull Tractor Unit (C800141)
This option improves the performance of continuous paper
handling. It is especially useful with continuous multi-part forms.
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Multi-Font Module (#7407-A)
The optional Multi-Font module adds to the number of fonts
available in the Letter Quality mode.
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Film Ribbon Cartridge (#7770)
The optional film ribbon cartridge provides you with even higher
quality printing than the standard fabric ribbon.
Introduction 3