Xerox WORKCENTRE 3119 Service Manual page 137

Temperature
Open Heat Error
If the fuser temperature is lower than a specified temperature during warm-up, the engine flags
an Open Heat Error. When this error occurs, the engine stops all functions and keeps the error
state. The engine then reports the error status to the main system. The error message is then dis-
played on the LCD notifying the user.
Recovery: This error will recover automatically when the specified temperature is reached.
Low Heat Error
If the fuser temperature is lower than a specified temperature during warm-up, stand-by or printing
for a certain duration, the engine flags a Low Heat Error. When this error occurs, the engine stops
all functions and keeps the error state. The engine then reports the error status to the main sys-
tem. The error message is then displayed on the LCD notifying the user.
Recovery: The engine records the temperature when the error occurred and then supplies maxi-
mum heat to the fuser. After a certain period, the engine compares the present temperature to the
recorded temperature. If the present termperature is higher than the recorded value, the printer
resumes operation.
Over Heat Error
If the fuser temperature is higher than the specified temperature and is maintained for a certain
duration, the engine flags an Over Heat Error. When this error occurs, the engine stops all func-
tions and keeps the error state. The engine then reports the error status to the main system. The
error message is then displayed on the LCD notifying the user.
Recovery: The engine records the temperature when the error occurred and then stops supplying
heat to the fuser. After a certain period, the engine compares the present temperature to the re-
corded temperature. If the present termperature is lower than the recorded value, the printer
resumes operation.
LSU Error
The errors related to LSU are as follows:
• By LReady: When the printing starts, the engine drives the polygon motor of the LSU. If
the motor is not in a ready status after a specified time has elapsed, the engine flags the
error. After the error is flagged, the engine stops all functions and keeps the error state.
The engine then reports the error status to the main system. The error message is then
displayed on the LCD notifying the user.
• By Hsync: When the polygon motor is ready, the LSU sends out a signal called Hsync
which is used to synchronize each image line. If the engine does not detect consecutive
signals for a fixed time, the engine flags a Hsync error. If this happens, the engine stops
all functions and keeps the error state. The engine then reports the error status to the
main system. The error message is then displayed on the LCD notifying the user.
WorkCentre 3119
General Procedures and Information
06/06 6-27