Temperature Transition - Gestetner B130 Service Manual

Rev. 11/2004
6.22.12 FUSING TEMPERATURE CONTROL
(B129/B130/B168/B169)
Control Process
The BICU references the signal
from the thermistor [A] every one
second. The BICU turns the
fusing lamp on and off, or keeps
it on or off, depending upon the
following factors:
• Current temperature
• Target fusing temperature
Target Temperature
The table lists the target
temperatures. These targets can be changed via the listed programs.
NOTE: For the fusing temperature transition during copying, see Temperature
Transition (below).
Status/Condition
Warming up
Ready
Copying
Low level
Thick paper

Temperature Transition

When the fusing unit is cool, the fusing temperature should be higher to improve the
fusing quality. During copying, the fusing temperature is controlled as listed in the
table below. "Default" is the target fusing temperature by default (SP1-105-005:
160°C). "Example" is the target fusing temperature when you have specified
"165°C" in SP1-105-005.
Start key
pushed ( )
Default
Example
Difference from
SP1-105-005
Copy SP1-105-005 adjusts the fusing temperature of the fourth phase ( ). You
cannot directly adjust the fusing temperature in the first three phases (
). They are always higher than the fourth phase ( ) by 15°C, 10°C, and 5°C
respectively.
SM
CÓPIA NÃO CONTROLADA
Temperature
160°C
150°C
160°C
60°C
165°C
For one
second ( )
175°C 170°C
180°C 175°C
+15°C +10°C
6-63
CÓPIA NÃO CONTROLADA
IMAGE FUSING AND PAPER EXIT
[A]
SP1-105-001
SP1-105-003
SP1-105-005
SP1-105-007
SP1-105-009
30 seconds
later ( )
165°C
170°C
+5°C
B129 Series/B044 Series
B130D907.WMF
SP
60 seconds
later ( )
160°C
165°C
—
through