Hitachi IJ RX2 Technical Manual page 121

(Example 3) When offline is restored during normal operation, and printing is subsequently
performed in standard mode:
Online
External device
IJ printer
Ready
Printing
(Example 4) Buffer repeat count is 2.
External device
IJ printer
Printing
(Example 5) Timing of Fault : Print completed, Data count when error occurs : 2
External device
IJ printer
Printing
(Example 6) Timing of Fault : Print started, Data count when error occurs : 0
External device
IJ printer
Printing
A B C D
A
A B C
A B C
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 B
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.
B B B
A A B
D
A B
A B
B
B
Detection of print
start signal
●Communication Buffer 5-65