Ricoh Aficio 1515 - Control Process; Fusing Temperature Control; Target Temperature; Temperature Transition

IMAGE FUSING AND PAPER EXIT 9 March 2004
6-10
6.7.6 FUSING TEMPERATURE CONTROL
Control Process
The BICU references the signal
from the thermistor [A] every one
seconds. The BICU turns on and
off the fusing lamp or keeps it on
or off, considering the following
factors:
• Current temperature
• Target fusing temperature
Target Temperature
The table lists the target temperatures. You can change these targets by the listed
programs.
NOTE: For the fusing temperature transition during copying, see Temperature
Transition.
Status/Condition Temperature SP
Warming up
160
°
C
SP1-105-001
Ready
150
°
C
SP1-105-003
Copying
160
°
C
SP1-105-005
Low level
60°C
SP1-105-007
Thick paper
165°C
SP1-105-009
Temperature Transition
When the fusing unit is cool, the fusing temperature should be higher to ameliorate
the fusing quality. During copying, the fusing temperature is controlled as listed in
the table. “Default” is the target fusing temperature by default (SP1-105-005:
160°C). “Example” is the target fusing temperature of the case where you specify
“165°C” in SP1-105-005.
Start key
pushed (➀)
For one
second (➁)
30 seconds
later (➂)
60 seconds
later (➃)
Default
175°C 170°C 165°C 160°C
Example
180°C 175°C 170°C 165°C
Difference from
SP1-105-005
+15°C +10°C +5°C
—
Copy SP1-105-005 adjusts the fusing temperature of the fourth phase (
➃
). You
cannot directly adjust the fusing temperature in the first three phases (
➀
through
➂). They are always higher than the fourth phase (➃) by 15°C, 10°C, and 5°C
respectively.
B130D907.WMF
[A]
[C]
[B]