CITIZEN S4000DCM - Manual (Page 28)

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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
p o s i t i o n , s t o p t u r n i n g t h e
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
Paper jam error Lights
Memory check error Lights
Low voltage error Lights
High voltage error or Lights
Power switch operation error
Macro execution Lights
wait *2
Black Mark detection OFF
error
Waiting for paper OFF
(label) cutting*L, *M
Paper (label) OFF
detection error*L, *M
*1: When the printer is printing.
*2: The ERROR LED may blink even in the execution of macro function.