Citizen Systems CT-S4000DC user manual When the Paper Cover Cannot Be Opened

●Black Mark detection error (in Black Mark mode)

When Black Mark cannot be detected even if a certain amount of paper feed is carried out for Black mark detection, a Black Mark detection error occurs. If black detection continues more than the specified period, a No Paper condition is assumed and the same error as No Paper is indicated.

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.

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	Phillips screwdriver
and follow the procedure of
removing jam or other cause of
trouble.

Cutter lock releasing feed hole

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