Lexmark T650 Service Manual page 137

Error
code or Error contents
message
927.16 Print cartridge cooling
fan over speed failure.
927.17 Print cartridge cooling
fan over speed failure.
929.01 Sensor (toner empty)
sensor failure.
929.02 Sensor (toner empty)
sensor failure.
929.03 Sensor (toner empty)
sensor failure.
930.00 Incorrect printhead or
intermittent H sync
Description/Action
The Print cartridge cooling fan
does not reach the specified
speed.
The Print cartridge cooling fan
does not reach the specified
speed.
The sensor (toner empty) does
not provide toner level
feedback or the print cartridge
is damaged.
The sensor (toner empty) does
not provide toner level
feedback or the print cartridge
is damaged.
The sensor (toner empty) does
not provide toner level
feedback or the print cartridge
is damaged.
A non supported printhead is
installed. Hsync signal is
intermittent or noisy. Printhead
ID resistor circuit is not to spec.
Possible repair actions
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the print cartridge
cooling fan. Go to "Print
cartridge cooling fan
removal" on page 4-56.
1. Check for cooling fan
obstructions.
2. Check the connections on
the main cooling fan.
3. Replace the print cartridge
cooling fan. Go to "Print
cartridge cooling fan
removal" on page 4-56.
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
operation. See "Sensor
(toner empty) service
check" on page 2-146.
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
operation. See "Sensor
(toner empty) service
check" on page 2-146.
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
operation. See "Sensor
(toner empty) service
check" on page 2-146.
Replace the printhead
assembly. Go to "Printhead
assembly removal (T650)" on
page 4-59 or "Printhead
assembly removal (T652,
T654, T656)" on page 4-60.
2-101
Diagnostic information
4062
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