Epson STYLUS PRO WT7900 Reference Manual page 22

All New Rotary Type Cutting Mechanism
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Extremely durable design and virtually maintenance free
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Off-carriage cutting system eliminates media dust within critical components
High Performance Cutting Speeds
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Capable of cutting a 24-inch wide sheet in less than two seconds
All-New High-Performance Rotary Cutter
New High Performance Rotary Cutting System