BIXOLON SRP-270 service manual Reset Circuit, Reset Block Diagram
Page 32
SRP-270
4-3-2 RESET Circuit
Reset signal is a signal in order to start-up CPU under Power-on. Reset circuit uses a reset ICTL7705ACD (U5). When +5Vdc is fallen under 4.3Vdc by Power-off, reset signal prohibits the system from misoperating by lowering down to 0V.