Noise Levels
512
• 20 ft. RS-232
• 40 ft. RS-232
RISC System/6000: For RS-232 attachment to the IBM RISC System/6000, the following are required:
• IBM Async cable EIA-232/V.24
• Printer/terminal interposer EIA-232
• Serial Cable Kit (PN 12H1204)
Coax/Twinax Interface Feature: Contact your IBM service representative for attachment requirements.
Printing Rates
The printing speed of text is measured in lines per minute (lpm), and is a function of the selected font and the vertical dot
density. Printing speed is independent of the number of characters configured in the character set repertoire. Print rates for
lines containing attributes such as bold or emphasized printing, superscripts, subscripts, or elongated attributes will decrease to
not less than half the rates of the font without such attributes. The exact print rate of lines containing these attributes depends
on the specific print job, but software maximizes the throughput by dynamically determining which dot rows contain adjacent
dots and must be printed in two strokes. Table 8 and Table 9 list nominal printing rates for 6500-v printers.
The reverse paper feed capability allows the printing of multiple densities on a single line. This is useful in printing forms and
text together or in mixing different fonts on a print line. Use of multiple densities and reverse paper feed also affects throughput.
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