Sharp AR-M550N - Page 157

: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 102
■ AR-M700N/U
Code
Signal
name
Name Type Function/Operation Active condition Note
RTH1 RTH1 Fusing temperature
sensor (1)
Thermistor
Detects the surface temperature of the fusing roller
(heating). (Center section)
Analog input
RTH2 RTH2 Fusing temperature
sensor (2)
Thermistor
Detects the surface temperature of the fusing roller
(heating). (Edge section)
Analog input
HLTS1 HLTS1 Thermostat (1) Shuts conduction to the heater lamp when the temperature
rises abnormally. [For the fusing roller (heating)]
HLTS2 HLTS2 Thermostat (2) Shuts conduction to the heater lamp when the temperature
rises abnormally. [For the fusing roller (heating)]
HL1 HL1 Heater lamp (1) Heats the fusing roller (heating).
HL2 HL2 Heater lamp (2) Heats the fusing roller (heating).
RTH3 RTH3 Fusing temperature
sensor (3)
Thermistor Detects the surface temperature of the auxiliary heat roller.
HLTS3 HLTS3 Thermostat (3) Shuts conduction to the heater lamp when the temperature
rises abnormally. [For the auxiliary heat roller]
Analog input
HL3 HL3 Heater lamp (3) Heats the auxiliary heat roller.
FUM FUM Fusing motor Drives the fusing unit.
No. Name Function/Operation
Active
condition
Note
1 Fusing roller (heating) Heats toner on paper and fuses it on paper.
2 Separation pawl Mechanically separates paper which was not separated naturally from the
fusing roller (heating).
3 Fusing roller (pressing) Heats and presses toner on paper.
4 Auxiliary heat roller Heats the fusing roller (pressing).
5 Separation pawl Mechanically separates paper which was not separated naturally from the
fusing roller (heating).
1
RT
H1
RTH2
RTH
3
HLTS1
HLTS2
HL1
HL
FUM
2
HL3
HLTS3
12
21
12
34
4321
A
B
A
B
PCU
4
8
10
3
9
1
5
2
2
Drawer connector
Cross-
sectional
view of
connector
Sub power PWB
1
1