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Press and hold button 1 while turning on the printer to access the function test
mode.
Use button 3 ( ) to select a function, use button 4 ( ) to execute the function.
Except for the self test and memory switch settings, all functions are for service
personnel only. Do not operate those functions.
Self test
1. While paper is loaded, press and hold button 1 while turning
the power on.
The function test mode starts and “Self test” appears on the
LCD.
2. Press button 4 ( ).
Self test starts. The printer prints its model name, version, DIP switch settings,
memory switch settings, and a list of built-in fonts.
CAUTION
Before starting to do maintenance work, be sure to turn off the printer and unplug the
power cord from the electric outlet.
Be careful not to touch the manual cutter while the front cover is open.
Be careful not to touch the opening for the auto cutter while the paper cover is open.
The print head is hot immediately after printing. Do not touch it.
Do not touch the print head with bare hands or metal objects.
If the above procedure does not retract the auto cutter, contact your Citizen Systems
dealer.
4.4 Function Test Mode
DIP switch settings
(Serial interface models
only)
Buffer size
Serial communication
status
(Serial interface models
only)
Interface
Firmware version
Memory
switch
setting