Dell Multifunction Laser Printer 5535dn Service Manual Page 129

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Diagnostic information 2-97
927.16 Print cartridge cooling
fan over speed failure.
The Print cartridge cooling fan
does not reach the specified
speed.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the print cartridge
927.17 Print cartridge cooling
fan over speed failure.
The Print cartridge cooling fan
does not reach the specified
speed.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the print cartridge
927.21 LVPS cooling fan
failure.
LVPS cooling fan is obstructed
or has failed.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the LVPS cooling
929.01 Sensor (toner empty)
sensor failure.
The sensor (toner empty) does
not provide toner level
feedback or the print cartridge
is damaged.
1. Check the toner pulse
wheel on the print cartridge
for damage and replace the
print cartridge if needed.
2. Check the sensor (toner
empty) for proper
929.02 Sensor (toner empty)
sensor failure.
The sensor (toner empty) does
not provide toner level
feedback or the print cartridge
is damaged.
1. Check the toner pulse
wheel on the print cartridge
for damage and replace the
print cartridge if needed.
2. Check the sensor (toner
empty) for proper
929.03 Sensor (toner empty)
sensor failure.
The sensor (toner empty) does
not provide toner level
feedback or the print cartridge
is damaged.
1. Check the toner pulse
wheel on the print cartridge
for damage and replace the
print cartridge if needed.
2. Check the sensor (toner
empty) for proper
930.00 Incorrect printhead or A non supported printhead is Replace the printhead
Error
code or
message
Error contents Description/Action Possible repair actions
ID resistor circuit is not to spec. page 4-34.
intermittent or noisy. Printhead assembly removal” on
intermittent Hsync installed. Hsync signal is assembly. Go to “Printhead
on page 2-112.
static jam service check”
(ADF sheet through)
operation. See “Sensor
on page 2-112.
static jam service check”
(ADF sheet through)
operation. See “Sensor
on page 2-112.
static jam service check”
(ADF sheet through)
operation. See “Sensor
fan” on page 4-154.
fan. Go to “LVPS cooling
removal” on page 4-31.
cartridge cooling fan
cooling fan. Go to “Print
removal” on page 4-31.
cartridge cooling fan
cooling fan. Go to “Print
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