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A single-line correctable display is incorporated within an ink jet printer to allow the operator to proofread and correct information before printing information permanently upon paper.
English (United States)
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Single Line Correctable Display for Ink Jet Printer
A single-line correctable display is incorporated within an ink jet printer to
allow the operator to proofread and correct information before printing
information permanently upon paper.
A smooth nonporous strip of display material 11 is placed between the nozzle
13 and paper 15 of an ink jet printer. As characters are entered from an input
device, such as a keyboard, they are printed on the display material 11. The ink-
material combination is chosen so that the ink will not be absorbed by or run off
of the display material 11. When a correction is necessary, the backspace key is
struck, causing the carrier 17 to be repositioned adjacent the last character
printed on display material 11. The display material 11 is also caused to pivot
downward in the direction of arrow 19 and contact wiper material 21, which
"erases" the last character printed. Thereafter, display material 11 is
repositioned so that the correct character may be struck on the keyboard to effect
printing thereon. As characters are entered and printed on display material 11,
they are stored in an electronic storage device (not shown).
After a line has been printed and corrected, the keyboard line return key (not
shown) is struck. This action causes display material 11 to be pivoted downward
in the direction of arrow 19 into contact with wiper 21. Thereafter, carrier 17
returns to the left margin, causing display material 11 to be "erased" by wiper...