Epson RC520 Manual page 55

· To start and change revolutions of the conveyer's (or the like's) AC motor (ex: an
induction motor or three-phase induction motor) regularly or abruptly, make sure to
install a spark suppressor between the wires. The spark suppressor is more effective
when placed close to the motor.
· As they are easily influenced by static electricity or the noise from power source, keep
the mouse and keyboard away from peripheral noise sources.
NOTE It is sometimes effective in suppressing such noise to wind the keyboard or mouse cables
around a ferrite core several times.
RC520 Rev.7
Setup & Operation 3.4 Noise Countermeasures (Installation)
41