Sharp AR-M550N Service Manual page 157

: Feb. 6 2004
1
AR-M700N/U
1
Drawer connector
A
FUM
3
9
4
Signal
Code
name
RTH1 RTH1 Fusing temperature
1
sensor (1)
RTH2 RTH2 Fusing temperature
1
sensor (2)
HLTS1 HLTS1 Thermostat (1)
HLTS2 HLTS2 Thermostat (2)
HL1 HL1 Heater lamp (1)
HL2 HL2 Heater lamp (2)
RTH3 RTH3 Fusing temperature
sensor (3)
HLTS3 HLTS3 Thermostat (3)
HL3 HL3 Heater lamp (3)
FUM FUM Fusing motor
No. Name
1 Fusing roller (heating)
2 Separation pawl
3 Fusing roller (pressing)
4 Auxiliary heat roller
5 Separation pawl
Sub power PWB
B
1
1
HL 2
4
HLTS2
HLTS1
HL1
HL3
2
5
HLTS3
RTH 3
2 1
2
1 2
Name Type
Thermistor Detects the surface temperature of the fusing roller
(heating). (Center section)
Thermistor Detects the surface temperature of the fusing roller
(heating). (Edge section)
Shuts conduction to the heater lamp when the temperature
rises abnormally. [For the fusing roller (heating)]
Shuts conduction to the heater lamp when the temperature
rises abnormally. [For the fusing roller (heating)]
Heats the fusing roller (heating).
Heats the fusing roller (heating).
Thermistor Detects the surface temperature of the auxiliary heat roller.
Shuts conduction to the heater lamp when the temperature
rises abnormally. [For the auxiliary heat roller]
Heats the auxiliary heat roller.
Drives the fusing unit.
Heats toner on paper and fuses it on paper.
Mechanically separates paper which was not separated naturally from the
fusing roller (heating).
Heats and presses toner on paper.
Heats the fusing roller (pressing).
Mechanically separates paper which was not separated naturally from the
fusing roller (heating).
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 102
2 3 4
3 2 1
RT H1
RTH2
Cross-
sectional
view of
connector
10
8
Function/Operation
Function/Operation
A
B
Active condition
Analog input
Analog input
Analog input
Active
condition
PCU
Note
Note