Hitachi RX Technical Manual page 103

(Example 3) When offline is restored during normal operation, and printing is subsequently
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
5-57 ●Communication Buffer
performed in standard mode:
A B
A B
A B
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.
C D
A B
C
A A
C D
A B
A B
B B B
B B
Detection of print
start signal