Epson HX-20 User Manual

When the screen editor is in lower case mode, the 

 keys

work the same way they do on a typewriter. Use no 

 key and

you get a lower case letter; use either 

 key and you get an

upper case  letter.

To put the screen editor back into upper case mode, simply press

the 

 

key again.

When you use BASIC or run an application program, you may wish

to type only  numbers,  instead of conventional text. You can, of
course, type numbers by pressing the numeric keys in the top row

of the keyboard.

But if you are accustomed to using a calculator or adding

machine, you may find it awkward to use these keys. You might

prefer the pattern of keys that you find on your calculator:

If so, do not despair. You won’t have to teach your fingers a whole

new pattern of numeric keys. Instead, just press the 

 

key.

Nothing will change on the screen, but the HX-20 is now  innumeric

mode,  which changes the behavior of many keys.

For example, press the 

 

key. Instead of placing a “U” on the

screen, you’ll see a “4” appear. Why?

If you look carefully at your HX-20 keyboard, you’ll notice that

small numbers appear in the upper right corner of several keys.

These keys will generate those numbers when the HX-20 is in

numeric mode. Thus, when the HX-20 is in numeric mode, this
group of keys:

will generate these numbers: