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Long test pattern: Paper Feed switch
If held down during power-up, this switch prints a long test pattern.
The test cyclesendlessly.To stop the test you must switchpower off.
Stay in panel pitch: Print Pitch switch
Byholdingthis switchdown during power-up,you can preventsoftware
interference with the print pitch selectedfrom the control panel. You will.
hear an acknowledgingbeep as power comes on. After the beep tone, you
can set the printer off-line, select a print pitch, then return to on-line and
start printing. The pitch you selectedwillnot be reset or otherwisechanged
by any commands your software may issue.
Stay in
pane] Sty/e: NLQ Type Style switch
If helddown duringpower-up,thisswitchpreventssoftwareinterference
with the type style selected from the control panel. There will be an ac-
knowledgingbeep, after which you can set the printer off-line,selecta type
style, then return to the on-line state and start printing. The selected type
stylewill not be changed by any commands sent by software.
If you want to protect both the Print Pitch and NLQ Type Stylesettings
from software changes, press both switches during power-up. There will
be two acknowledgingbeeps.
Pressing these switches during power-up does not prevent you from
making any number of changes later from the control panel.
Hexadechnal dump: Paper Feed and Print Pitch switches
This feature is useful for programmers who are debugging printing
programs and want to see the actual codes the printer is receiving.(Some
computers change the codes the programm
er intended.)
1. Holding both the Paper Feed and Print Pitch switchesdown,turn power
ON. A beep tone will be heard.
2. Start printing. In place of the usual printout you will get a formatted
dump showingexactlywhat data the printer receives.Each linepresents
sixteen characters, their hexadecimal codes to the left and printable
characters printed on the right.
3. At the end of the hexadecimal dump, set the printer off-linewith the
On Line switch. This is necessaryto print the last line.
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