CASIO Postword HX-7 Word Processor

CASIO Postword HX-7

Power has been confirmed, but I don't know how to use it, so other operations have not been tested.

Includes instruction manual (bent, but readable)
Includes 3-color ink ribbon (red, green, black)
Includes warranty card (good condition)
Includes cable (good condition)

Has been stored in a closet for a long time, so there may be dirt and damage.
No claims, no returns, please.

Thank you for looking.