Call Engineer Error Messages and Codes
Printer Messages A-11
Print Messages
Toner density
voltage low
alarm
SVC 5A The reference voltage used
to measure the toner
concentration in the
developer unit is below the
normal range.
Purge developer and try again with a new
bottle. If this error code persists, call your
service representative.
Toner hopper
alarm
SVC 5B The hopper which holds the
toner is not working correctly,
or there is no toner in the
hopper. This error will occur
if you continue to clear a
Toner Empty condition.
Confirm that the plastic protective cover on
the right side of the toner hopper was
removed (see page 2-47 of the
D640
Installation Manual
)
.
If you have recently
added toner, call your service
representative. If you have not recently
added toner, try adding toner. If the toner
hopper is full, call your service
representative. If the toner hopper was
empty, cycle power after adding toner.
Main motor
alarm
SVC 69 The main motor did not reach
normal rotation speed.
Verify that the drum and fuser unit is
correctly installed and that all printer doors
and covers are closed, then press Clear. If
this error code returns, call your service
representative.
High-voltage
power supply
alarm
SVC 6F The high voltage power
supply is not working
correctly.
Clean the transfer assembly charger (see
“Transfer Assembly Guide” on page 5-9)
and try to print again. If the error persists,
try replacing the transfer unit (see
“Removing the Transfer Assembly” on page
4-19). If the error still persists, try replacing
the drum unit (see “Drum Kit - Replacing
Drum and Transfer Assembly” on page 4-
18). If the error persists after replacing the
drum unit, call your service representative.
Spindle motor
alarm
SVC 79 The motor inside the optical
unit did not reach the normal
rotation speed.
Turn the printer off for at least 30 seconds,
and turn the printer on again. If this error
code returns, call your service
representative.
BD1 alarm SVC 7A The BD (beam detection)
signal number 1, inside the
optical unit is not working
correctly.
Turn the printer off for at least 30 seconds,
and turn the printer on again. If this error
code returns, call your service
representative.
BD2 alarm SVC 7B The BD (beam detection)
signal number 2, inside the
optical unit is not working
correctly.
Turn the printer off for at least 30 seconds,
and turn the printer on again. If this error
code returns, call your service
representative.
BD speed high
alarm
SVC 7C The BD (beam detection)
cycle, inside the optical unit
is above normal speed.
Turn the printer off for at least 30 seconds,
and turn the printer on again. If this error
code returns, call your service
representative.
Error
Message
Code Description Action
