Panasonic UF-490 / UF-4000 / UF-4100 / UF-490YC / UF-490YR Service Manual ▷ View online
33
Initialize Flow 3
Send Initialize COMMAND
to PANEL CPU
RCV Normal
ACK from PNL ?
PANEL Initialize
Tried 10 times ?
N
Tried 10 x 3 times ?
Y
0
Hard Reset
(PNL CPU)
N
N
Y
END
Y
34
Initialize Flow 4
Door Open ?
SCANNER Initialize
H
Y
N
Y
END
EJECT Start
B Point OFF ?
Jam Length
Over ?
Error (Jam) Set
Info. Code 031
Error (ADF Open) Set
Info. Code 061
L
N
+24LVL
CNP11.3 24V -> -> (1) Q28
-> 5V -> -> (77) IC1 CPU
-> 5V -> -> (77) IC1 CPU
35
Not change from 3.3V ?
Initialize Flow 5
PRINTER Initialize
STOP
L
Door Open
Door Open ?
+24LVL
CNP11.3 24V -> -> (1) Q28 (3)
-> 5V -> -> (77) IC1 CPU
-> 5V -> -> (77) IC1 CPU
Registration
Sensor ON ?
Exit Sensor ON ?
Paper JAM
Paper JAM
H
H
L
L
nRSEN
nESEN
CNP7.4 3.3V -> -> (75) IC1 CPU
PC3.3 3.3V -> -> (76) IC1 CPU
Fuser Heat-up
(Lamp ON)
pSSRA
nSSR
nSSR
IC3 SHINE (28) 3.3V -> ->
(2) Q35 (3) 24V -> -> CNP4.11
(2) Q35 (3) 24V -> -> CNP4.11
Thermistor Open ?
Abnormal
Temperature?
Device Error
Y
Device Error
Y
N
H
THERM
CNP7.1 -> (79) IC1 CPU
THERM
CNP7.1 -> (79) IC1 CPU
Increase under 0.2V ?
Main Motor ON
N
A
sec.
”V
14sec.
0.2V
36
Initialize Flow 6
Stand-by
A
Internal Process
of High Voltage
pTR0
IC1 CPU (25) 3.3V -> ->
(2) Q16 (3) 16V -> -> CNP6.5
(2) Q16 (3) 16V -> -> CNP6.5
pCR1
pCR0
DRCK
IC1 CPU (24) 3.3V -> ->
(2) Q17 (3) 16V -> -> CNP6.4
(2) Q17 (3) 16V -> -> CNP6.4
IC1 CPU (23) 3.3V -> ->
(2) Q18 (3) 16V -> -> CNP6.3
(2) Q18 (3) 16V -> -> CNP6.3
IC3 SHINE (29) 3.3V -> ->
(2) Q19 (3) 16V -> -> CNP6.2
(2) Q19 (3) 16V -> -> CNP6.2
Check Low Toner
and No Cartrige
TSENCONT
IC3 SHINE (169) 3.3V -> ->
(2) Q44 (3) 5V -> -> CNP15.4
(2) Q44 (3) 5V -> -> CNP15.4
TONER
CNP15.5 3.3V -> -> (78) IC1 CPU
No Cartrige ?
Fuser Idle
(Lamp OFF)
STOP
Y
N
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