Oki LP-1040 Maintenance Manual page 729

(2) LED display during standard operation
When the check performed at power on completes without any problems, the display for each
LED is as shown below.
○
: On
☆ : Flashing
● : Off
△ : Lit at a print request, and not lit at no request
×
: Indefinite
―
: Non-discussed LED
9 8 7 6 5 4 3 2 1
＿ ＿ ＿ ＿ ＿ ＿ ＿ ＿ ○
＿ ＿ ＿ ＿ ＿ ＿ ＿ ☆ ○
＿ ○ ＿ ＿ ＿ ＿ ＿ ☆ ○
9 8 7 6 5 4 3 2 1
× △ ○ ● ● ● × ☆ ○
× △ ● ○ ● ● × ☆ ○
× △ ○ ○ ● ● × ☆ ○
× × ● ● ○ ● × ☆ ○
× × ● ● ○ ○ × ☆ ○
× × ● ● ● ○ × ☆ ○
● ● ● ● ● ● ● ● ●
× × ○ ○ ○ ○ × ☆ ○
● ● ● ● ● ● ● ● ●
9 8 7 6 5 4 3 2 1
Appendix Circuit Board Configuration and Display
LED1 lit
LED2 flashing (1 second interval)
LED8 lit
LED7 lit, LED6, 5, 4 not lit
LED6 lit, LED7, 5, 4 not lit
LED7 and 6 lit, LED5 and 4 not lit
LED5 lit, LED7, 6, 4 not lit
LED5 and 4 lit, LED7 and 6 not lit
LED4 lit, LED7, 6, 5 not lit
All LED not lit
LED7, 6, 5, 4 lit
All LED not lit
AAC1 board on
Program running
Print request present
Warming up
Standby
Printing, operation running
A recoverable error has occurred.
An unrecoverable error has occurred.
Soon after starting power save mode
Power save mode
Shutting down
Shut down
B-3