Oki MICROLINE ML380 Maintenance Manual page 312

Timing chart:
RD
TD PRINTING
ON
BUSY state
OFF
* If data is transferred when the printer is still BUSY, the printer sends a DC3 code every time
it receives data.
8) LOCAL TEST FUNCTION
(a) Circuit test mode setting
• Diagnostic
Test set by menu
• Test connector
Connect the test connectors shown in Figure 5-1 to the interface connectors.
40959201TX Rev.1
256 characters or less
DATA 1
200 ms or 1 second minimum
Equivalent to Cannon DB-25P
Figure 5-1 Test Connector Connection Diagram
Waiting for BUSY
state to be free
2
TD
3
RD
4
RTS
5
CTS
8
CD
11
SSD
20
DTR
6
DSR
DATA
47 /