MX-M700N FUSING SECTION N – 3
E. Fusing temperature control
The temperature sensor is provided at the center of the heat roller
and the sub heat roller.
The roller temperature is detected by the installed temperature sen-
sor, and the heater lamp is controlled so that the temperature is
maintained at the specified level.
In addition, the fusing temperature is switched according to the kind
of paper.
F. Cleaning operation
The fusing roller removes toner and dusts from the heat roller and
the pressure roller surfaces by the following three methods.
• Sub-heat roller: Clean the sub heat roller with the cleaning sheet.
• Pressure roller: Mechanical cleaning by the CL roller.
• Heat roller: Mechanical cleaning by the web roller.
3. Disassembly and assembly
A. Fuser section
Mode Paper Fusing roller Sub heat roller
Ready
condition
Print mode
Standard paper 185°C 185°C
Thick paper 220°C 180°C
Tab paper 220°C 180°C
Postcard 200°C 200°C
Pre-heat –- 140°C 140°C
No. Name
1 Cleaning sheet
2 Pressure roller
3 Discharge brush
4 Heat roller
5 Sub heat roller
6 CL roller
7Web roller
8 Lower CL roller DG2
4
2
3
8
6
1
5
7
No. Unit Parts
Mainte
nance
㧔㧕 Fusing unit a Web end sensor ✕
b Web motor
c Pressure bearing ▲
d Pressure roller ✕▲
e Web roller ✕▲
f Web bearing ▲
g Heat roller separation pawl ✕▲
h Pressure roller separation pawl ✕▲
i Pressure roller ✕▲
j CL roller ✕▲
k CL roller bearing ▲
l Lower CL roller DG2 ✕▲
m Heater lamp main
n Heater lamp sub
o Heat roller gear ✕
p Heat roller ✕▲
q Thermistor (upper) ✕
r Thermostat (upper main)
s Thermostat (upper sub)
t Thermostat (lower)
u Thermistor (lower) ✕
v Cleaning sheet table ✕▲
w Sub heater lamp
x Sub heat roller bearing ▲
y Sub heat roller ✕▲
(1)-q
(1)-c
(1)-l
(1)-o
(1)-o
(1)-x
(1)-x
(1)-j
(1)-p
(1)-g
(1)-g
(1)-h
(1)-g
(1)-h
(1)-h
(1)-i
(1)-j
(1)-v
(1)-y
(1)-w
(1)-t
(1)-t
(1)-u
(1)-l
(1)-u
(1)-m
(1)-n
(1)-rs
(1)-q
(1)-q
(1)-r
(1)-s
(1)-k
(1)
(1)-k
(1)-k
(1)-k
(1)-d
(1)-c
(1)-c
(1)-f
(1)-a
(1)-f
(1)-e
(1)-b
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