FS-9120DN/9520DN
2-1-17
CFM
(For second speed)
CFM
(For first speed)
PM
TC REM
DB REM
DM
FH-S
FH-M
POWSW
Fuser temperature
130°C/266°F (FS-9120DN)
145°C/293°F (FS-9520DN)
(secondary stabilization)
Fuser temperature
115°C/239°F (FS-9120DN)
120°C/248°F (FS-9520DN)
(primary stabilization)
Printing enabled Aging end
300 ms
100 ms
500 ms
300 ms
1 s
10 s
8 s
30 s
Half speed
Timing chart 2-1-5 Fuser section operation
a: The moment when the power switch (POWSW) is turned on, the fuser heater S (FH-S) is turned on and heating of
the heat roller starts.
b: 300 ms after the power switch (POWSW) is turned on, the fuser heater M (FH-M) and the cooling fan motor (CFM)
are turned on.
c:1 s after fuser heater M (FH-M) turns on, the polygon motor (PM) of the laser scanner unit turns on.
d:When the fuser temperature reaches 115°C/239°F (FS-9120DN)/120°C/248°F (FS-9520DN), the printer enters
primary stabilization, and fuser heater M (FH-M) turns off temporarily and turns on again after 8 s.
e: 100 ms after the primary stabilization, the drive motor (DM) turns on. Also the cooling fan motor (for second speed)
switches to full speed rotation.
f: 500 ms after the drive motor (DM) turns on, the developing bias (DB REM) turns on and at the same time transfer
charging (TC REM) starts.
g:When the fuser temperature reaches 130°C/266°F (FS-9120DN)/145°C/293°F (FS-9520DN), the printer enters
secondary stabilization. Fuser heaters M and S (FH-M and FH-S) are turned on and off to keep the fuser temperature
at 130°C/266°F (FS-9120DN)/145°C/293°F (FS-9520DN) and aging starts.
h: 10 s after printing is enabled, transfer charging (TC REM) ends.
i: 30 s after the secondary stabilization, the drive motor (DM) turns off and the aging ends.