Epson HX-20 User Manual

Because the cursor is near the right edge of the screen, something

unusual will happen when you type the next character. Press

them key. An “O” appears on the screen at the cursor location, but
the cursor doesn’t move to the right. Instead, all the text

on the screen slides to the left. So the screen will look like this:

Type the letter “R” and it happens again! This hardly seems fair:

each time you add a character on the right, you lose a character on

the left. Or do you? In fact, the characters that have “disappeared”
are still in the virtual screen, but you can’t see them because they’ve

scrolled to the  left  of the LCD window.

You can bring those characters back into view with the cursor

keys. Move the cursor far enough to the left, and the LCD window
will move to the left, too, because the LCD window scrolls  auto-

matically,  to keep the cursor in view. Thus, as the cursor moves to

the left through the virtual screen, the LCD window will follow it, so
that once again you will see the “missing” characters.

Using the cursor keys, place the cursor just to the right of the last

character you’ve typed. Now continue typing your expression,

Eventually the screen will look like this:

The next letter in the expression is “O”, and when you press

the 

 

key you might expect to see your text scroll horizontally yet

again. But what happens? After an “O” appears at the cursor loca-

tion, the text doesn’t scroll to the left. Instead, the cursor moves one

space to the right. So the screen will look like this:

Your text didn’t scroll to the left, because the LCD screen was