Service manual

1-20 Features and General Specifications Rev. B
Confidential
DIP Switches
See Addendum 1 of this manual for the description about the DIP switch settings.
Panel LEDs
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.
Power
(POWER)
LED:
Green
On: 24 V power supply is stable.
Off: 24 V power supply is not stable.
Paper roll near-end
(PAPER OUT)
LED:
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.
(*1)
The near-end detector is an option.
Error
(ERROR)
LED:
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.)