Page: 128
Service Guide ML520/521
Chapter 4 Failure & Repair Analysis
4.6.02ALARM/LED Display Troubleshooting Table Index
CAUTION:
Always check that all connectors on the printer are making good contact.
NOTE:
Reference Numbers 25 and 26 use identical Operator Panel displays
ALAR | UTILITY | PRO | NLQ | HSD | 10 | 12 | 15 | 17 | 20 | SE | MENU | Referen |
M |
| P |
|
|
|
|
|
|
| L |
| ce |
|
|
|
|
|
|
|
|
|
|
|
| Number |
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
| On |
| On |
|
|
|
|
|
|
| 1 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin | On | On |
|
|
|
|
|
|
|
|
| 2 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
|
|
|
| On |
|
|
| On |
|
| 3 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
|
|
| On | On |
|
|
| On |
|
| 4 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin | On |
|
|
| On |
|
|
| On |
|
| 5 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
| On |
|
| On |
|
|
|
|
|
| 6 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
| On |
|
| On |
|
|
|
|
|
| 7 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
|
| On |
| On |
|
|
| On |
|
| 8 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
| On |
|
| On |
|
|
| On |
|
| 9 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
|
|
|
| On |
|
|
|
|
|
| 10 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Blinkin |
|
|
|
|
|
| On |
|
|
|
| 11 |
g |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
