Справочник Пользователя для Epson LX-80

In nearly all of our discussions in this manual, we describe the

action of the LX-80 print head as moving from left to right, as a

typewriter does. During its normal operation while printing in the

draft mode, however, the LX-80 prints bidirectionally. That is, the

print head goes from left to right only on every other line. On the

other lines it reverses everything and prints right to left.

By reversing both the dot patterns and the printing direction, the

LX-80 produces a line that is correct and looks no different from a

line printed from left to right. It does this to save time. Otherwise, the

time the print head takes to go from the right margin back to the left

would be wasted.

The intelligence of the printer takes care of all the calculations

necessary for this bidirectional printing, so you don’t have to be

concerned about it. You simply do your part of the work as if the
printer will be printing from left to right on each line and let the

LX-80 do all the necessary calculations so that you can enjoy the
increased speed.

In addition to pica, in which there are 10 characters per inch, the

LX-80 can also print in other widths, or pitches. It does so by reduc-

ing the distance between pin firings. In the elite mode it prints 12

characters per inch and in the compressed mode it prints slightly
more than 

17 characters per inch. The pattern of the dots is not

changed, but the horizontal space between them is reduced.

In Figure 3-2 are enlargements of four sample letters in each of the

three pitches. These letters are chosen to show how the LX-80 prints
letters that are uppercase and lowercase, wide and narrow, and with
and without descenders (the bottom part of the y).

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