From the Manufacturer

The SX-4000 is a mid-level portable daisywheel typewriter with a 16-character LCD display and a 70,000 word dictionary. Its features include the Perfectype professional touch keyboard, automatic "word-out" and "line-out" correction memory, automatic underling, bold printing, right margin flush and view mode. It has a variable 10/12/15 pitch typing selector and automatic paper insertion.

Features:

• Perfectype professional touch keyboard
• View mode allows easy viewing of the typing line
• Line-by-line printing
• Automatic carriage return
• Automatic paper insertion
• Forward and reverse indexing
• Automatic repeat for all characters
• Interchangeable cassette daisy wheel with various type styles available
• Interchangeable cassette ribbon
• Self-demo feature automatically demonstrates features and functions
• Paper support conveniently doubles as lid cover
• Carrying handle
• "Word-spell" 70,000 word dictionary with error-locating FIND feature
• 16-character LCD display
• Automatic paper insertion
• Full line lift-off correction memory
• "Word-Out" and "Line-Out" correction system
• Automatic underlining
• Bold printing and right margin flush
• View mode
• Variable 10/12/15 pitch typing selector