Lexmark M410 - Optra B/W Laser Printer Service Manual page 86

4045-XXX
To run the Serial Wrap Test:
1. Disconnect the serial interface cable and install the wrap plug.
2. Select the Serial 1 Wrap Test from the menu. P and F represent
the same numbers for DRAM.
– The power indicator blinks indicating the test is running.
3. This test runs continuously unless canceled by pressing Return/
Stop.
Each time the test finishes, the screen updates with the result. If the
test passes, the Pass Count increases by 1, however if the test fails,
one of the following failure messages displays for approximately
three seconds and the Fail Count increases by 1:
Receive Status Interrupt Error
Status Error
Receive Data Interrupt Error
Transmit Data Interrupt Error
Transmit Empty Error
Threshold Error
Receive Data Ready Error
Break Interrupt Error
Framing Error
Parity Error
Overrun Error
Data Error
Data 232 Error
Data 422 Error
FIFO Error
DSR Error
DSR PIO Error
DSR Interrupt Error
CTS Error
CTS PIO Error
CTS Interrupt Error
Once the maximum count is reached the test stops. The power
indicator goes on solid and the final results display.
Press Return/Stop to exit the test.
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Service Manual