Brother International HL-720 Service Manual - Page 80

Laser BD malfunction, D-RAM Error

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4.2 Error codes In the event of a printer failure, error codes will be indicated as shown below. All the LEDs and the specific LEDs go ON by turns repeatedly. The specific combination of ONs indicates the type of the error. Type of error Fuser malfunction Laser BD malfunction Scanner Malfunction ROM Error D-RAM Error Service A Service B Service C Service D Service E0 Service E1 Service P NV-RAM Error DATA READY ALARM DRUM v LED indicating the error Fuser Malfunction DRUM ALARM READY (PAPER) DATA (TONER) A lapse of time : OFF : ON

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4.2
Error codes
In the event of a printer failure, error codes will be indicated as shown below. All the LEDs
and the specific LEDs go ON by turns repeatedly. The specific combination of ONs
indicates the type of the error.
Type of error
DATA
READY
ALARM
DRUM
Fuser malfunction
Laser BD malfunction
Scanner Malfunction
v
ROM Error
D-RAM Error
Service A
Service B
Service C
Service D
Service E0
Service E1
Service P
NV-RAM Error
LED indicating the error
Fuser Malfunction
DRUM
ALARM
READY
(PAPER)
DATA
(TONER)
A lapse of time
: OFF
: ON