Hitachi IJ RX2 Technical Manual page 120

(2) Buffer
● The print content receive buffer has a queue structure (beginning with oldest data, in sequence).
● Print content is fetched from the buffer for each printing.
● Once the Ready status is set, the first print content will be fetched from the buffer.
● The buffer capacity is 100 print items (total 1000 chracters). An alarm will be raised if it exceeded its
capacity.
● The buffer will be cleared when offline is set.
● The buffer is always empty immediately after power is turned on.
● The buffer will not be cleared even if the status is changed to that other than the print enable status.
● When offline is switched to online, the contents in buffer will be cleared, and then the standard-mode print
operation will continue. In this case, print contents of at the time it was changed offline will be printed,
then subsequently same print contents will be printed. However, this option feature will be effective again
by reconfiguring the setting according to the procedure described in the previous page.
● If printing is interrupted because of some fault (print overlap fault, etc.), printing will restart from the
subsequent data in buffer.
(3) Character types available
● Calendar characters and count characters are not available.
● To use user pattern characters, define them in advance using "Create user pattern" function. Undefined
user pattern characters will be printed as spaces.
(4) Examples of operational procedure
(Example 1) Normal operation:
Online
External device
IJ printer
Ready
Printing
(Example 2) When status is restored to that other than ready during normal operation, and printing
Online
External device
IJ printer
Ready
Printing
5-64 ●Communication Buffer
A B
is to restart in ready status:
A B
C D E F
A B C
C D
A
Print content
transmission
Detection of print
start signal
Printing
E F
B C