Service manual

FO-IS125N
5 – 30
L100
THERMISTER
ERROR
Fuser Temp.
too High
HEATER HIGH
Temp. detect
Error
Heater control Error
/HLON signal
IC100 (40pin, 44pin)
(Fax Engine)
D101 (Diode)
C, R on route
of CNRTH-40pin of IC100
CNRTH (Connector)
IC100 (Fax Engine)
CNRTH (Connector)
Other parts on route
of CNRTH-IC100
IC100 (Fax Engine)
CNPW-9pin/10pin
Q400
A
2
3
B
Fuser Temp.
too Low
HEATER LOW
Temp. detect
Error
Heater control
Error
/HLON signal
Safety circuit
No detect zerocross
signal (/ZC)
IC100 (Fax Engine)
CNRTH (Connector)
C, R on route
of CNRTH-IC100
IC100 (Fax Engine)
CNPW-9pin/10pin
IC401, Q400
IC400 (Comparator)
IC401
R, C around above
ICs
R, C around above
IC400
IC100 (Fax Engine)
C, R on route
of CNPW(10pin)-IC21
CNPW-10pin
B
4