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3.4 Panel LED Indicators
3.4.1 Panel LED indicators
1) Power supply (POWER) LED: Green
ON:
Power supply is stable.
OFF:
Power supply is not stable.
2) Receipt/Journal paper roll near-end (PAPER OUT) LED: Red
ON:
Near-end or end of paper roll is detected. (*1)
OFF:
Adequate paper remains on the paper roll (normal condition).
Blinking: See Table 3.4.1 for the meanings. (Both a receipt and a journal LED blink)
*1: A near-end detector is installed.
Printer Status
A self-test printing is in a wait state.
The printer waits for a validation
paper to be inserted.
The printer waits for a validation
paper to be removed.
3) Error (ERROR) LED: Red
ON:
Offline (except during paper feeding using the paper feed button and during the self-
test).
Blinking:
Error state. (See Section 3.5, Error Processing)
OFF:
Normal operation.
EPSON
Table 3.4.1 Printer Status In Blinking
TITLE
RP-U420 series
Specification
(STANDARD)
Receipt/Journal LEDs blinking pattern
approx.320ms
320ms
approx.160ms
160ms
approx.160ms
2.56sec
SHEET
REVISION
B
160ms
NO.
NEXT
SHEET
39
38
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