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5.3 Paper feed
5.4 Cash-box
5.5 Indicator light/buzzer
Fault
Possible cause
Solution
There is no paper
feed or paper feed
is abnormal
Paper is blocked in the printer
Clear the blocked paper and install the printing
paper according to the operation instructions
Gear is damaged
Replace the gear
The main board is damaged
Repair or replace the main control board
Print head motor is in fault
Replace the print head
There is foreign matter in the gear
Clean the gear
Fault
Possible cause
Solution
The cash-box cannot
be opened
The cash-box cable does not match
Replace with cables of corresponding
specification
Cash-box drive cable is damaged
Replace the cable
Cash-box drive circuit is damaged
Repair or replace the main control board
The cash-box cannot
be closed
Cash-box drive circuit is damaged
Repair or replace the main control board
Fault
Possible cause
Solution
The key or indicator
is not working
Key indicator light cable is not
reliably connected
Reconnect the cable
Cable or connector is damaged
Replace cables or connectors
The key or indicator light is
damaged
Replace keys or indicator lights
state show that the circuit is
damaged
Replace or repair the main control board
The buzzer is not
working
The buzzer is damaged
Replace the buzzer
The buzzer control circuit is
abnormal
Replace or repair the main control board
The settings are incorrect
Set according to requirements of the manual
