Panasonic UF-5500 Service Manual page 147

print timing sensor work
CROSS REFERENCE:
FAN Motor Section (P.47)
When the recording paper jam is occurred, the service mode *630 distinguishes the cause.
0:No Jam
1:Exit Sensor turns ON, though not under the conditions for ON.
2:Exit Sensor turns OFF, though not under the conditions for OFF.
3:After Exit Sensor falls, it turns ON already on terminating of Cancel Timer.
4:After Exit Sensor rises, it turns ON already on terminating of Cancel Timer.
5:Top Sensor turns ON, though not under the conditions for ON.
6:Top Sensor turns OFF, though not under the conditions for OFF.
7:After Top Sensor falls, it turns ON already on terminating of Cancel Timer.
8:After Top Sensor rises, it turns OFF already on terminating of Cancel Timer.
9:Exit Sensor never turns ON in the specified time, though Top Sensor turns ON.
10:Top Sensor MAX-length-JAM.
11:Exit Sensor never turns OFF in the specified time, though Top Sensor turns OFF.
12:Registration Sensor turns ON, though not under the conditions for ON.
13:Registration Sensor turns OFF, though not under the conditions for OFF.
14:After Registration Sensor falls, it turns ON already on terminating of Cancel Timer.
15:After Registration Sensor rises, it turns OFF already on terminating of Cancel Timer.
16:Top Sensor never turns ON in the specified time, though Registration Sensor turns ON.
17:Registration Sensor MAX-length-JAM.
18:Top Sensor never turns OFF in the specified time, though Registration Sensor turns OFF.
Top Sensor never turns OFF in the specified time, though Pick1 Sensor turns OFF.
19:PICK1 Sensor turns ON, though not under the conditions for ON.
20:PICK1 Sensor turns OFF, though not under the conditions for OFF.
21:After PICK1 Sensor falls, it turns ON already on terminating of Cancel Timer.
22:After PICK1 Sensor rises, it turns OFF already on terminating of Cancel Timer.
23:Registration Sensor never turns ON in the specified time, though PICK1 Sensor turns ON.
Top Sensor never turns ON in the specified time, though PICK1 Sensor turns ON.
24:PICK2 Sensor MAX-length-JAM.
25:Registration Sensor never turns OFF in the specified time, though PICK1 Sensor turns OFF.
90:Abnormal stop during printing DMA.
91:Incompleteness of JBIG decompression.
92:HVERR(error of an abnormal charge voltage) was detected during printing.
99:Before Motor Rotation.
Yes
Does the
No
properly?
Yes
End
Replace the print timing sensor.
147
UF-5500 / 4500