Lexmark T620 Service Manual - Page 37
The following is an example of how the printer shows a duplex unit, sub error code.
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4069-5XX/7XX 3. Continue pressing Return and Select until each screen of information is obtained. 4. When the last screen displays, the original message displays. The following is an example of how the printer shows a duplex unit sub error code. Byte 1 Byte 2 Byte 3 Byte 4 DU XX XX XX XX DU XX XX XX XX Byte 5 Byte 6 Byte 7 Byte 8 Diagnostic Information 2-9
Diagnostic Information
2-9
4069-5XX/7XX
3.
Continue pressing Return and Select until each screen of
information is obtained.
4.
When the last screen displays, the original message displays.
The following is an example of how the printer shows a duplex unit
sub error code.
DU
DU
Byte 1
XX
XX
Byte 5
Byte 2
XX
XX
Byte 6
Byte 3
XX
XX
Byte 7
Byte 4
XX
XX
Byte 8