Canon FAX-L260i Service Manual page 73

Drum cover shutter
If the photosensitive drum is subjected to strong light, optical memory can cause dropout
areas or black bands to occur. To prevent the photosensitive drum from strong light, a
drum cover shutter is attached. Do not open this cover unless absolutely necessary.
Fixing Heater Malfunction
The printer controller on the PCNT board detects a fixing heater malfunction in the follow-
ing instances.
NOTE
a) When a temperature of 100°C or more is not detected within 15 seconds after the fixing
heater begins heating toward the normal preset target temperature
b) When a fixing unit temperature of 195°C or more continues for 150m seconds
c) When a temperature of 20°C or more is not detected even though the power is supplied
for 0.5 seconds during printing or warming up
d) When a temperature of less than 0°C is detected for 150m seconds during fixing heater
control
e) When the fixing heater temperature falls to 90°C or lower for 3 seconds during printing
When a fixing heater malfunction is detected, this machine shuts off the power supply to the
fixing heater, stops the main motor, scanner motor and high-voltage systems, and generates
a printer error.
Paper eject jam detection
There are two types of paper eject jam which may occur.
a) Paper eject stationary jam
A paper eject stationary jam occurs when the paper eject sensor detects the paper between
3.3 and 4.7 seconds after the paper edge sensor detects the trailing edge of the paper.
b) Paper eject delay jam
A paper eject delay jam occurs if the paper eject sensor detects "no paper" between about
5 seconds after the paper edge sensor detects the leading edge of the paper and about 2.5
seconds after paper edge sensor detects the trailing edge of the paper. Fixing unit windup
jams are also detected by this method.
When either of these jams are detected, "CLEAR PAPER JAM" is displayed. If the jam
occurs during reception, the data is received in memory. If it occurs in memory copy mode, the
image data in memory is cleared.
To clear a paper eject jam, open the front cover, and remove the jammed paper. Output re-
sumes automatically when you close the front cover. If you remove the jammed paper without
opening the front cover, open and close the front cover once to reset the printer.
When a fixing unit windup jam occurs, remove the delivery cover to access the jammed paper,
then remove the jam.
FAX-L260i Chapter 2: Technical Reference
2-15