Brother International HL-720 Users Manual - English - Page 60

Service Calls

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English: HL-YL User's Guide, Chapter 6 USER'S GUIDE Service Calls If an unrecoverable error occurs, the printer indicates the need for a service call by lighting all the lamps and then the following combination of lamps alternately: Service Call Drum Alarm Ready Data Fuser malfunction q r r r Laser BD malfunction r q r r Scanner malfunction q q r r ROM error r r q r Service Call Drum Alarm Ready Data D-RAM error q r q r Service A r q q r Service B q q q r Service C r r r q Service Call Drum Alarm Ready Data Service D q r r q Service E0 r q r q Service E1 q q r q Service P r r q q Service Call Drum Alarm Ready Data NV-RAM error q r q q q ON r OFF If you see any of these service call indications, turn off the power switch, wait a few seconds and then turn it on again and try to print again. If you cannot clear the error and see the same service call indication after turning on the printer, consult your dealer or our authorized service representative. Report the error status and situation referring to the above table.  Note Be sure that the top cover and the main controller board are firmly installed. 6-4

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USER’S GUIDE
6–4
English: HL-YL User’s Guide, Chapter 6
Service Calls
If an unrecoverable error occurs, the printer indicates the need for a
service call by lighting
all the lamps
and then the following
combination of lamps alternately:
Service Call
Fuser
malfunction
Laser BD
malfunction
Scanner
malfunction
ROM error
Drum
●
●
Alarm
●
●
Ready
●
Data
Service Call
D-RAM error
Service A
Service B
Service C
Drum
●
●
Alarm
●
●
Ready
●
●
●
Data
●
Service Call
Service D
Service E0
Service E1
Service P
Drum
●
●
Alarm
●
●
Ready
●
Data
●
●
●
●
Service Call
NV-RAM
error
Drum
●
Alarm
Ready
●
Data
●
●
ON
OFF
If you see any of these service call indications, turn off the power
switch, wait a few seconds and then turn it on again and try to print
again.
If you cannot clear the error and see the same service call indication
after turning on the printer, consult your dealer or our authorized service
representative. Report the error status and situation referring to the
above table.
Note
Be sure that the top cover and the main controller board are firmly
installed.