System for performing spell check functions on a printing device without operator intervention

摘要

A printing device including a central processing unit, a first memory, a keyboard for inputting characters forming words, and symbols, which are stored in the first memory, a second memory, a printer, and an eraser. The printer prints the information stored in the first memory. The central processing unit determines whether a word printed by the printer means before the commencement of the printing of the next word is correctly spelled. The second memory contains a dictionary used by the central processing unit to determine whether the spelling of the word printed by the printer is correct. The eraser erases a part of or the entire printed word in response to the central processing means determining that the printed word is misspelled.