Printronix L5535 Manual De Usuario
Chapter 3
Host Interface Menu
84
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When ready to receive data (buffer drops to 50% full), the
printer sends a buffer empty response character to the host.
printer sends a buffer empty response character to the host.
•
If the buffer ever fills completely, the printer sends a buffer full
response character to the host every time it receives a
character from the host.
response character to the host every time it receives a
character from the host.
•
In addition, whenever the printer state changes from online to
offline (or vice-versa), the printer sends the appropriate
response character to the host.
offline (or vice-versa), the printer sends the appropriate
response character to the host.
The printer uses different response characters to represent buffer
full and buffer empty, depending on whether it is online or offline.
These response characters are listed in the following table:
full and buffer empty, depending on whether it is online or offline.
These response characters are listed in the following table:
With the SERIES 1, 1 CH protocol selected, if the printer receives a
Series 1 poll character from the host, the printer removes the poll
character from its input data stream and discards it. After a delay,
called the poll delay, the printer replies to the host by sending the
appropriate response character, per the preceding table.
Series 1 poll character from the host, the printer removes the poll
character from its input data stream and discards it. After a delay,
called the poll delay, the printer replies to the host by sending the
appropriate response character, per the preceding table.
During a poll delay, if the printer receives another poll character,
the printer merely discards it. However, if a transition (from buffer
full to buffer empty or from online to offline) occurs during a poll
delay, the printer sends the response character appropriate to the
new printer state at the end of the delay.
the printer merely discards it. However, if a transition (from buffer
full to buffer empty or from online to offline) occurs during a poll
delay, the printer sends the response character appropriate to the
new printer state at the end of the delay.
If you enable the Series 1 Idle parameter, then whenever the buffer
is less than 75% full, the printer sends a response character to the
host every two seconds.
is less than 75% full, the printer sends a response character to the
host every two seconds.
Online State
Buffer State
Response Character
Online
Buffer Empty
CR
Buffer Full
3
Offline
Buffer Empty
0
Buffer Full
2