Self Test - Citizen CT-S251 Mode D'emploi

4.3 Self Test

You can use self test to check for printer problems.
Performing a self test operation
1. While paper is loaded, press and hold the FEED button and turn on the power.
2. Hold the FEED button down for about one second until the buzzer sounds. Release the
button to start self test. The printer will print its model name, version, memory switch
settings, and built-in fonts.
Firmware version
Interface
Serial communication
conditions
(USB or serial interface
models only)
Buffer size
51
— —
Memory
switch
setting