Citizen CT-D151 User Manual page 45

The status display for various messages is shown below.
Status
Paper near-end
Paper-end
Cover open*3
Cover open II*4
Cutter locked
Low-voltage error
High-voltage error
System error
Memory error
Print head hot
Notes:
*1: Buzzer sounds when MSW5-1 (buzzer setting) is set to ON.
*2: MSW10-5 (buzzer event) can be configured to disable the buzzer.
*3: Indicated when a cover is opened during standby.
*4: Indicated when a cover is opened during standby.
PAPER LED CUTTER LED
Lit
Unlit
Unlit
Unlit
Unlit
Unlit
Unlit
COVER LED
Unlit Unlit
Unlit Unlit
Unlit Lit
Unlit
Unlit
Unlit Unlit
Unlit Unlit
Unlit Unlit
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SERVICE LED Buzzer*1
Unlit No
Unlit Yes*2
Unlit Yes*2
Unlit Yes*2
Unlit Yes
Unlit No
No
No
No
Unlit No