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H The optional sheet feeder
The automatic sheet feeder is a handy option that feeds single
cut sheets automatically. Work done on cut sheets looks better
that done on computer paper, and you don’t have to tear the
“perforations” off each sheet as you must with fan-fold paper.
The automatic sheet feeder feeds a new sheet automatically
every time the printer receives or generates a form feed. Any
time you wish, you can turn the auto-feed unit on and off by
using control codes.
Table 6-8
Automatic sheet feeder commands
Function
Control code
Select automaticfeed mode
(ESC) CHR$(25)CHR$(4)w “((4))”
Cancelautomatic feed mode
(ESC) CHR$(25)CHR$(0)aY“((0))”
Insertpaper
(ESC) CHR$(25)CHR$(l)w “((l))”
Eject paper
(ESC) CHR$(25)“R”or “((R))”
When the automatic sheet feeder is installed, you must set
DIP switch 1-5 on to detect the paper-out condition.
In addition, the following functions are ignored when the
automatic sheet feeder is installed:
Setting of the page len~h
Top and bottom margins
Vertical tab settings
■ The macro control code
The last of our group of miscellaneous codes is definitely not
the least. It is a user-definedcontrol code, called a mucrocontrol
code. The term
mucro is from the jargonese mucro-instruction
which refers to an instruction that “calls,” or uses a group of nor-
mal instructions. In computer programming macro-instructions
(which are similar to subroutines) save programmers a lot of
time and effort. Your printer’s macro can save you a lot of time
and effort also.