Service Error Codes
239
TROUBLESHOO
TING
1. Check connection between
ECN13 of IOD2 and
Clutch (DCLK
).
2. Check voltages below:
a)
Voltage drop ( ) between ECN13-3 and
ECN2-8 then, replace the clutch (DCLK)
b) Voltage jump ( ) between ECN1-4 and
ECN2-12 then, replace IOD2 PWB
3. Replace MCTL PWB
D3
Code
Description of Error
Cause of Error
Clearance Method
Developer Clutch (DCLK)
D4
1. Loose/Broken connection
2. Incorrect
voltage at
DCLK ON-N
3. MCTL PWB Failure
+24V
Developer Clutch (DCLC)
1. Loose/Broken connection
2. Incorrect
voltage at
DCLC ON-N
3. MCTL PWB Failure
1. Check connection between
ECN14 of IOD2 and
Clutch (DCLC)
.
2. Check voltages below:
a)
Voltage drop ( ) between ECN14-3 and
ECN2-8 then, replace the clutch (DCLC)
b) Voltage jump ( ) between ECN1-3 and
ECN2-12 then, replace IOD2 PWB
3. Replace MCTL PWB
+24V
MCTL
12CN
3
DCL(Y)ON-P
IOD2
ECN1 ECN14
DCLC
+24V-1
DCL(C)ON-P
1
3
ECN2
5
8
12
PGND
SGND
+ 24V-1
3
MCTL
12CN
4
DCL(Y)ON-P
IOD2
ECN1 ECN13
DCLK
+24V-1
DCL(K)ON-P
1
3
ECN2
5
8
12
PGND
SGND
+24V-1
4
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: ......