CK821 Thermal POS printer User’s manual
8
Function instruction of components
1
）
Power switch
Press “O” side to power off, press “I” side to power on.
2
）
Power indicator(green)
The indicator is on when power on, and it is off when power off.
3
）
Error indicator (Red)
Error indicator is on when it detects error. Such as: paper out, upper cover is open and cutter is stocked.
4
）
Paper indicator(red)
Paper out indicator is on when it detects the paper is out. Please put a new paper roll to printer inside then.
3.2 Indicator and buzzer instruction
1
）
Function instruction of indicators and buzzer
Name
Status
Instruction
Power indicator (Power)
On
Printer is power on
Off
Printer is power off
Error indicator (Error)
On
Printer is in error status
Off
Printer is in normal status
Paper out indicator
（
Paper
）
On
Printer is in paper out status
Off
Printer is in normal status
Description
Power Indicator Error Indicator Paper Indicator
Buzzer
Open printer cover
On
On
On
It rings 6 times by 1.5s.
Paper is enough
On
Off
Off
Silent
Paper out
On
On
On
It rings 3 times by 1.5s.
Note: Printer detects printer head temperature via thermal resistance. It will cut off print head power
and stop printing if print head is overheat. The print head protection temperature is 80
℃
.
