14 March, 2003
TROUBLESHOOTING FLOW CHART
4-19
Trouble-
shooting
4.5.16 TREMBLING AT THE END WHEN OHP PRINTING
4.5.17 POOR FUSING GRADE
Set to OHP mode
When multi-page OHP
printing, less than 10 films
are guaranteed.
NO
YES
Is the
OHP mode selected
using the software
application?
YES
Other parts are touching
the fan and prevents it
from revolution
→
Check and repair
Recommended OHP
film used?
Inserted over
than 10 films into the
MPF?
Use the recommended
film
When OHP printing,
does the fan temporarily
stops and revolves?
YES
YES
NO
NO
NO
Use the recommended
film
H911T926.WMF
NO
YES
The paper used is too thick
or contains too much
cotton in it
→
Re-test with the
recommended paper
The
machine
placed under the
severe low
temperature for a
long time?
After printing
completed, any
error related
fusing unit?
While
printing, the voltage
of pin 208 of U5
(CPU) on Main board
is 2.0 V to
2.3 V?
Thermistor's
contact is OK?
Both ends of
thermostat open?
Replace fusing unit
Replace the control
component on engine
board
Check any contact
problem in thermistor
or replace fusing unit
Place the machine at
normal temperature and
re-test
Open
the top cover. When
black printing, is the
fusing unitNIP width
is 1.2 to 3.0
mm?
Replace
fusing unit
Check if the hardness of
P/R, and spring force is
OK?
(spring's force: 2.5kg)
NO
NO
NO
YES
YES
YES
NO
YES
YES
NO
H911T927A.WMF
