Agilent Technologies 1660A Series User Reference page 80

Connecting a Printer
GPIB Printers
GPIB Configuration Menu (1664A)
If you select 132 characters per line for the QuietJet selection it can print a
full 132 characters per line without going to compressed mode, but the
printer must have wider paper.
If you select 80 characters per line for any printer, a maximum of 80
characters are printed per line.
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