iDP3420/3421/3423 User’sMa nual
30 CITIZEN
9.3.3 TimingChart
(1) Data input and p rinting timing
T1,T2, T3 : 0.5 µsMIN
T4 : 270 ns MAX
T5 : 2.3µsTYP
T6 : 50 0 msMI N (At power-on)
9.3.4 Data Receiving Control
Whenthe BUSY signal is at "LOW," theprinter can receive the data from the host, but when at "HIGH," it
cannot.