Lexmark T650n Service Manual page 133

Error
code or Error contents
message
929.02 Sensor (toner empty)
sensor failure.
929.03 Sensor (toner empty)
sensor failure.
930.00 Incorrect printhead or
intermittent Hsync
931.00 No first laser H sync
932.00 Printhead lost laser H
syncs.
933.00 Polygon mirror motor
locked. No first laser
H sync received.
934.00 Mirror motor lost lock.
Description/Action
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.
The hsync signal is missing or
not at the correct voltage.
The hsync signal is missing or
not at the correct voltage.
The hsync signal is missing or
not at the correct voltage.
The signals driving the polygon
motor may have been
corrupted, or the cable may be
loose, or the motor may be
bad.
Possible repair actions
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 2-145.
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
"Sensor
operation. See
(toner empty) service
check" on page 2-145.
Replace the printhead
assembly. Go to "Printhead
assembly removal (T650)" on
page 4-47 or "Printhead
assembly removal (T652,
T654)" on page 4-48.
Replace the printhead
"Printhead
assembly. Go to
assembly removal (T650)" on
page 4-47 "Printhead
or
assembly removal (T652,
T654)" on page 4-48.
Replace the printhead
"Printhead
assembly. Go to
assembly removal (T650)" on
page 4-47 or "Printhead
assembly removal (T652,
T654)" on page 4-48.
Replace the printhead
assembly. Go to "Printhead
assembly removal (T650)" on
page 4-47 or "Printhead
assembly removal (T652,
T654)" on page 4-48.
1. Check all connections on
the printhead assembly.
2. Check all connections on
the system card assembly.
3. Replace the printhead
assembly. Go to
"Printhead assembly
removal (T650)" on
page 4-47 or "Printhead
assembly removal (T652,
T654)" on page 4-48.
Diagnostic information
4062
2-101