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Name
ER ROR (indicator)
RESET
FORM FEED
SET TOF (Top of Form)
SCROLL
Audible Alarm
POWER (indicator)
POWER (switch)
Table 2-1. Front Panel Switches and Indicators
Function
Lights for any of the following error conditions: parity, overrun, framing,
printer cover open, check, out-of-paper. The last three errors are indicated
only if printing is attempted.
Turns off error lamp after the condition that caused the error has been
cleared. Resets errors (see audible alarm). (A printer check requires a clear
operation; see Table 2-2.)
Moves paper up to the top line of the next form.
Operate this switch after installing forms and manually positioning them to
the first line. (Make sure the SCROLL switch is off.) This synchronizes the
HyTerm electronics to the form position. Operating this switch also loads the
setting of the FORM LENGTH switch (Table 2-2) into the HyTerm's
memory.
With this switch on, the paper moves up approximately one second after a
character is printed so that the printing can be easily seen. Before another
character is printed, the paper automatically moves down to align the printing
on the same line. When several characters are printed in succession, the paper
remains down until one second after the last character is printed. Turning this
switch off defeats the scroll feature. The switch should be off when inserting
paper and when setting the top of form.
Print quality may be affected if the scroll feature is used along with a forms
tractor or single-cam (undirectional) pin-feed platen. Since these devices are
not designed to move paper in the reverse direction, the printed line may
exhibit some waviness when the scroll feature is used. Also, if the form is
backed up over page boundaries (perforations), some bunching or jamming of
the forms may occur. For best results, a friction platen or a dual-cam
(reversible) pin-feed platen should be used.
NOTE
When the SCROLL switch is turned on, the paper
moves up immediately. When it is turned off, the
paper does not move down until the next character is
printed or the next printer function is performed.
Therefore, when inserting paper and setting top of
form, if the SCROLL switch is on, first turn it off,
and then operate the space,
~arriage
return, line feed,
or some other key, before attempting to align the
paper to the top line.
Sounds for 1/4 second for each new type of error. Additional errors of the
same type do not sound the alarm (unless errors have been reset), but the first
error of a different type will.
Also sounds when BEL character is received or when printing exceeds right
margin. (This can only occur when the right margin has been set at some print
position short of the "maximum.")
Lights whenever power is present in the HyTerm.
Controls ac power to HyTerm. When power is first applied, a clear operation
takes place.
2-2
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