A p p e n d i x C : I / O P o r t P o l l i n g
❖
C-3
For the 4510/4510ps printers:
When print jobs are pending on all five ports (parallel, serial,
and the network interface ports), the port polling sequence is:
1 Parallel
2 Serial
3 Ethernet
4 Token Ring
5 Back to Parallel
LocalTalk
is not a part of this sequence. When a print job is
detected on the LocalTalk port, the print job is put in the
queue immediately after any current job finishes.
Except for those on the LocalTalk interface,
print jobs are
processed in the sequence in which they are received by the
printer
. As soon as one print job has finished, the printer
continues polling until it finds another port that has received
data.
If a print job is incomplete, the printer waits until the port is
inactive for the
Port Timeout
period. After that, the printer
ends the incomplete job and continues polling the ports when
either:
•
Auto Job End
is
On
or
•
Another print job is received on a port
Therefore, the printer does not excessively service one
particular port.
Note
AUG-APPC Page 3 Black,Cyan Saturday, January 21, 1995 7:14 PM
