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4-16 Chapter 4: 7401-4xxx Hardware Installation
ATTN/ERR (yellow)
Used with the buzzer to indicate the following conditions:
Status Indication
Switch press Short flash/beep when Switch F0-F3 are pressed
System warnings Flashing/beeping to alert operator of low paper or
out of paper condition
System error
codes
Repeating sequence of coded flash/beep tones
(used during factory/depot repair)
Normal display
Off
Panel Switches
The four momentary push button switches (F0-F3) are used for manual
interaction with the printer.
F0/SELECT
Places the printer in On-line or Off-line (Test) mode. The READY LED
is off when the printer is in Test mode. The ATTN/ERR LED blinks
and the beep tone sounds every 14 seconds to indicate the printer is
Off-line.
F1/TEST
Alternately prints one of two test pages.
• One page is a short 85 mm (3.5 in.) page with that identifies the
printer and the printer manufacturer.
• The second page is a full 280 mm (11 in.) page with the same
information plus multiple lines of alphanumeric data scrolling
across the page.
F2/LINE FEED
Advances the paper approximately 3 mm (0.1 in.) to test simple paper
movement.