[muRata] EMC Solutions: Noise Suppression Examples

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If noise is conducted to the printer cable, high levels of noise are radiated. Therefore, EMI filters are installed on the cable port (parallel interface) to suppress noise.

Note that installing a filter with a large impedance value may sometimes hinder communication between the printer and personal computer.

Using a BLA31 Series (Array type) decreases the mounting surface area.

Noise Emission Status
Noise Suppression Model

Improving the GND
Installing EMI filters on the Parallel Interface
Installing EMI filters on the DC Power Supply Input and Lines
Installing EMI filters on Motor Control Lines
Installing EMI filters on the Clock Line
Installing EMI filters on Bus Lines
Installing EMI filters on the IC Power Supply Line

Examples of Noise Suppression for USBs