NEC Super Script 4400, Maintenance Manual

Page: 254 / 317

Service Error Codes 245
TROUBLESHOO
TING
1. Check the connections between:
a) DCN7 of IOD1 and the Erase Lamp connector .
b) DCN1 of IOD1 and 11CN of MCTL P.W.B.
3. If voltage between DCN7-11 and 9 is
trailing edge then replace
the Erase Lamp.
4. If voltage between DCN1-41 and 2 of IOD2
is rising edge then replace the IOD2 P.W.B.
5. Replace MCTL PWB
E9
Code Description of Error Cause of Error Clearance Method
Erase Lamp(EL) EL
1. Loose/Broken connection
3. Cleaning Erase Lamp
4. IOD2 Failure
5. MCTL PWB Failure
Belt Sensor (P.B.S) 1. Defective Belt Cartridge
2. Belt Sensor Stained
3. Loose/Broken connection
3. Defective
Belt Sensor
4. IOD1 Failure
6. MCTL PWB Failure
1. If the belt cartridge leans to one side replace
the cartridge and level the printer.
2. Clean the belt sensor, replace the belt
cartridge and level the printer.
3. Check the connections between:
a) DCN11 of IOD1 and the sensor connector .
b) DCN1 of IOD1 and 11CN of MCTL P.W.B.
3. If there are +5V between DCN11-2 and 3 of
IOD1then replace the Belt Sensor.
4. If there are +5V between DCN1-5 and 1 of
IOD1 then replace the IOD1 P.W.B.
5.Replace MCTL PWB
MCTL
11CN
1
5
SGND
+5V-1
IOD1
DCN1 DCN11
P.B.S
Sensor
1
5
PBSEN-N
+5V-1
SGND
1
2
3
Belt Sensor
MCTL
11CN
2
41
PGND
ELON-P
IOD1
DCN1 DCN7
EL
2
41
+24V-1
ELON-N
SGND
10
11
9
Relay Connector
Erase Lamp
1
2
1
2