Communication Procedure Flowchart - Oki MICROLINE 320 Turbo Maintenance Manual

2.3

Communication Procedure Flowchart

2.3.1 Mode a
42089201TH Rev.4
Ready/Busy
Received one
character?
No
Yes
Is DSR valid?
No
Buffer overflow?
No
Error?
Store the received
character in buffer.
Is the
printer in DESELECT
state or is the paper
low?
No
Is remaining
buffer space < 256?
No
Has 200 ms or
No
1s elapsed after SSD was
turned on?
Yes
Turn off the SSD signal.
Yes
Printer busy?
No
Output one character from the
buffer to printer.
Figure B-2-2
Yes
Yes
Parity error
No error
Store 40 H in buffer.
Yes
Yes
Yes
buffer space > 256 during
receive time out?
Turn on the SSD signal.
Oki Data CONFIDENTIAL
No
DSR High?
Yes
Is remaining
No
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