Hitachi IJ RX2 - Page 121

●Communication Buffer 5-65
Externaldevice
Online
IJprinter
Ready
Printing
A B C D
A
B B B B
(Example 3) When offline is restored during normal operation, and printing is subsequently
performed in standard mode:
Externaldevice
IJprinter
Printing
A B C
A A B B
Externaldevice
IJprinter
A B C D
Printing
A B
Externaldevice
IJprinter
A B
Printing
A B
Detectionofprint
startsignal
(Example 4) Buffer repeat count is 2.
(Example 5) Timing of Fault : Print completed, Data count when error occurs : 2
(Example 6) Timing of Fault : Print started, Data count when error occurs : 0
A communication buffer fault occurs because the number of data in the buffer is
2 after B is printed.(C and D in the buffer are not printed)
A communication buffer fault occurs because the number of data in the buffer
is 0 after B is printed followed by detection of print start signal.