240
SuperScript 4400 — Maintenance Guide
1. Check connection between
ECN3 of IOD2 and
Solenoid (PSL KC)
.
2. Check voltages below:
a)
Voltage drop ( ) between ECN13-3 and
ECN2-8 then, replace the front cover unit
b) Voltage jump ( ) between ECN1-6 and
ECN2-12 then, replace IOD2 PWB
3. Replace MCTL PWB
D5
Code
Description of Error
Cause of Error
Clearance Method
Developer Solenoid
(PSL KC)
D6
1. Loose/Broken connection
2. Incorrect
voltage at
(PSL KC) ON-N
3. MCTL PWB Failure
+24V
Developer Solenoid
(PSL YM)
1. Loose/Broken connection
2. Incorrect
voltage at
(PSL YM) ON-N
3. MCTL PWB Failure
1. Check connection between
ECN14 of IOD2 and
Solenoid (PSL YM)
.
2. Check voltages below:
a)
Voltage drop ( ) between ECN3-11 and
ECN2-8 then, replace the front cover unit
b) Voltage jump ( ) between ECN1-5 and
ECN2-12 then, replace IOD2 PWB
3. Replace MCTL PWB
+24V
MCTC
12CN
5
PSL(YM)ON-P
IOD2
ECN1
ECN3
PSL YM
+24V-1
PSL(YM)ON-N
10
11
ECN2
5
8
12
PGND
SGND
+24V-1
5
MCTC
12CN
6
PSL(YM)ON-P
IOD2
ECN1 ECN3
PSL KC
+24V-1
PSL(YM)ON-N
12
13
ECN2
5
8
12
PGND
SGND
+24V-1
6
Summary of Contents for Super Script 4400
Page 1: ...NEC SuperScript 4400 4400N Maintenance Guide 18 September 1998 Part Number 703 A0240 001 ...
Page 3: ...i SuperScript 4400 Maintenance Guide ...
Page 61: ...52 SuperScript 4400 Maintenance Guide ...
Page 71: ...62 SuperScript 4400 Maintenance Guide ...
Page 125: ...116 SuperScript 4400 Maintenance Guide ...
Page 189: ...180 SuperScript 4400 Maintenance Guide Toner Sensor TPD Toner Sensor TTR Fram Ass y ...
Page 193: ...184 SuperScript 4400 Maintenance Guide Stay A Ass y Transfer Drum ...
Page 203: ...194 SuperScript 4400 Maintenance Guide Stay A Ass y ...
Page 267: ...258 SuperScript 4400 Maintenance Guide ...
Page 273: ...264 SuperScript 4400 Maintenance Guide ...
Page 287: ...XIV SuperScript 4400 Maintenance Guide F G H I J ...
Page 289: ...XVI SuperScript 4400 Maintenance Guide ...
Page 293: ...ii Superscript 4200N and 4400 Series Maintenance Guide Addendum ...
Page 295: ...iv Superscript 4200N and 4400 Series Maintenance Guide Addendum ...
Page 302: ...7 ...
Page 314: ...19 NOTES ...
Page 315: ...20 Superscript 4200N and 4400 Series Maintenance Guide Addendum ...
Page 316: ......