Oki Microline 520 Service Handbook page 227

4.6.02 ALARM/LED Display Troubleshooting Table Index
CAUTION:
Always check that all connectors on the printer are making good contact.
ALARM UTILITY PROP
Blinking On
Blinking On On
Blinking
Blinking
Blinking On
Blinking On
Blinking On
Blinking
Blinking On
Blinking
Blinking
Blinking
Blinking On
Blinking
Blinking
Blinking
Blinking On
Blinking
Blinking
Blinking
Blinking
On
On
On
NOTE:
Reference Numbers 25 and 26 use identical Operator Panel displays
Microline 520/521 Service Handbook
P/N 59257803
NLQ HSD 10 12
On
On
On On
On
On
On
On On
On
On
On
On
On On
On
On
On On
On
Blink
ing
On
On
4 - 19
15 17 20 SEL MENU
On
On
On
On
On
On
On
On
On
On
On
On
On
On
On On On
On
Blink On
ing
On On Blinking
On On Blinking
Reference
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Failure Analysis