
Using the operator panels
| Primary light | Secondary | |||
| sequence | 
 | light sequence | ||
| Ready / Data | 
 | Error | Ready / Data | Error | 
| 
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Message
Load media (Ready / Data light blinks once)
Print side two of a duplex job (Ready / Data light blinks once)
Memory full (Ready / Data light blinks three times)
Host interface disabled (Ready / Data light blinks five times)
Jam in the printer paper path (Ready / Data light blinks ten times)
Jam in Tray 1 / priority feeder (Ready / Data light blinks four times)
Short paper (Ready / Data light blinks three times)
Toner low (Ready / Data light blinks eight times)
Replace 
Service error (secondary Ready / Data light blinks ten times)
Overview of the Lexmark E120 operator panel
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