Protection systems

Problems on the load side, such as short circuits, can cause an excessive flow of current from the DC power supplies or can generate abnormal voltage. When this happens, the excess-current and excess-voltage protection systems automatically shut off the output voltage to protect the power supplies.

If the protection systems are activated and the power-supply circuit does not output DC voltage, turn the printer off, correct the problem in the faulty load, and then turn the printer on again.

140 Chapter 3 – Power supply

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