Fusing Temperature Control - Ricoh B202 Service Manual

FUSING

6.12.3 FUSING TEMPERATURE CONTROL

Fusing Temperatures
When the main switch turns on, the CPU turns on the fusing lamp. The lamp stays
on until the thermistor detects the standby temperature. Then the CPU raises the
temperature to the printing temperature.
The fusing temperature for each mode is as follows.
Mode
Energy saver
level 1
Standby mode
Color
(simplex/duplex)
Black and white
(simplex/duplex)
Middle thick color
(simplex/duplex)
Middle thick black
and white
(simplex/duplex)
OHP
Thick
The heating and pressure roller temperatures for fusing are stored in SP1-105-4 to
-70.
When the machine is switched on, the fusing lamp temperatures increase to those
specified by SP1-104-25.
The print ready temperature is slightly less than the fusing temperature. The
difference is specified by SP1-105-1 and -2.
B202/B178/B180
Resolution Temperature of
(dpi) Heating Roller
C2a/k: 165°C
C2b: 170°C
1,200 x 1,200
C2a/k: 140°C
1,800 x 600
600 x 600
C2b: 160°C
C2a/k: 140°C
1,200 x 1,200
C2b: 160°C
C2a/k: 160°C
1,800 x 600
600 x 600
C2b:
1,200 x 1,200
C2a/k: 155°C
1,800 x 600
600 x 600
C2b: 175°C
C2a/k: 155°C
1,200 x 1,200
C2b: 175°C
C2a/k: 175°C
1,800 x 600
600 x 600
C2b:
All
All
Temperature of
Pressure Roller
100°C 130°C
120°C
135°C 130°C
C2a/k: 130°C
C2b: 145°C
C2a/k: 130°C
C2b: 145°C
C2a/k: 145°C
175°C C2b:
140°C 135°C
C2a/k: 130°C
C2b: 150°C
C2a/k: 140°C
C2b: 150°C
150°C
180°C
145°C 130°C
155°C 135°C
6-92
Note
If SP1-104-
025 is set to
"B/W:
H Normal".
150°C
SM