Citizen CT-S4000 ユーザーズマニュアル

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4.7  When the Paper Cover Cannot Be Opened
If the cutter blade remains protruded due to paper jam or for any abnormality, opening
the paper cover may be disabled.  In this case, do not open the paper cover forcibly.
Insert a Phillips screwdriver (size #1) into the cutter lock releasing feed hole and turn it in
the direction of arrow (clockwise).
When you find that both ends of the blade reached the lowest position, stop turning the
screwdriver.  Open the cover and follow the procedure of removing jam or other cause
of trouble.
Cutter lock
releasing feed hole
Phillips screwdriver
Lighting and blinking status of each error including the above is shown below.
Status
POWER LED
ERROR LED
Buzzer
Paper-end
Lights
Lights
Paper near-end
Lights
Lights
Printer cover open
Lights
Lights
Printer cover open
Lights
error *1
Cutter lock error
Lights
Head overheat error
Lights
Motor overheat error
Lights
Memory check error
Lights
Low voltage error
Lights
High voltage error
Lights
Macro execution
Lights
wait *2
Black Mark detection
Lights
error
*1: When the printer is printing.
*2: The ERROR LED may blink even in the execution of macro function.