Olivetti d-Color MF550, Теория работы

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19. Fusing section Theory of Operation Ver. 8.0 Jun. 2008
13
6
2
Composition/Operation
C. Temperature control during stand-by
• The fusing temperature in the standby state is prevented from being dropped.
• The temperature is controlled by each modes (low temperature, normal, high humidity),
within predetermined time from standby control start.
• The temperature is controlled by normal mode, after predetermined time from standby
control start.
* Counted period for standby control includes the printing time.
• Temperature control setting during standby is changed according to the environment
condition when the power is turned ON.
Normal mode: When the fusing pressure roller temperature at start-up is over 60
degrees centigrade and the absolute humidity inside is less than 18.
Low temperature mode: When the fusing pressure roller temperature at start-up is less
than 60 degrees centigrade and the absolute humidity inside is less than 18.
High humidity mode: When the absolute humidity inside is over18.
* Absolute humidity: Water volume contained in the air (1m
3
) in form of vapor regardless
of the temperature.
• A different control temperature is set only for the
MF
45
0
for Taiwan because of its low
power that can be used.
(
1
)
MF
550/
MF
45
0
control temperature
(
2
)
MF
45
0
only for Taiwan control temperature
Environment
condition when
the power is
turned ON
Pressure/
spacing of
fusing
pressure roller
Rotation of
fusing
pressure roller
Set tempera-
ture of heating
roller (Degrees
centigrade)
Set tempera-
ture of fusing
pressure roller
(Degrees
centigrade)
Set tempera-
ture of soaking
roller (Degrees
centigrade)
Normal
Spacing Rotation
150 125 120
Low temperature 170 130 125
High humidity 160 130 125
Environment
condition when
the power is
turned ON
Pressure/
spacing of
fusing
pressure roller
Rotation of
fusing
pressure roller
Set tempera-
ture of heating
roller (Degrees
centigrade)
Set tempera-
ture of fusing
pressure roller
(Degrees
centigrade)
Set tempera-
ture of soaking
roller (Degrees
centigrade)
Normal
Spacing Rotation
150 125 120
Low temperature 180 130 125
High humidity 160 130 125
Theory of Operation Y107522-3