Panel Leds; Self-Test - Casio UP-250 Technical Manual

Panel LEDs

Power ( POWER ) LED:
Paper roll near-end
( PAPER OUT ) LED:
(*1) The near-end detector is an option.
Error ( ERROR ) LED:

Self-test

The printer has a self-test function that checks the following:
Control circuit functions
Printer mechanisms
Print quality
Control ROM version
DIP switch settings.
See Chapter 4 for instructions on running a self-test.
Green
On: 24 V power supply is stable.
Off: 24 V power supply is not stable.
Red
On: Paper roll near-end is detected. (*1)
Off: Adequate paper remains on the paper roll (normal
condition).
Blinking: Waiting for restart test print on paper roll or for
return to on-line status after automatic paper
feeding.
Red
On: Off-line (except during paper feeding using the
FEED button and during the self-test).
Off: Normal operation.
Blinking Error state. (Refer to "Error types and
countermeasures" in Chapter 4.)
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