248
SuperScript 4400 — Maintenance Guide
1. Ensure the outlet is at the correct voltage
and amperage for the printer.
2. Replace the Fuser Unit with the correct unit.
3. Connect it properly.
4. Re-install Fuser Unit.
5.
Replace the connector.
6. Replace the lamp and lamp holder.
7. Replace the heater.
8. Replace the Low Voltage Power Supply
Unit (LVPS).
9.Replace MCTL PWB
H0
Code
Description of Error
Cause of Error
Clearance Method
Fuser Unit and Others
H2,
H3,
H4
1.
Input voltage
2. Fuser Voltage Rating
(110 or 220)
3. HP/HN connector not
connected
4. Fuser Unit improperly
installed
5. Fuser connector
damaged
6. Lamp Holder contract failure
7. Heater wiring cut or
damaged
8. Low Voltage Power Supply
Unit (LVPS) Failure
9. MCTL PWB Failure
Fuser Unit
1. Fuser Improperly
Installed
3. C
ontact failure due to
damaged connector of fuser
unit
4.
Loose/Broken connection
5. Defective Fuser Unit
6. IOD1 Failure
7. MCTL PWB Failure
1. Re-installe fuser unit.
3. Replace fuser unit.
4. Check the connection between
the fuser unit
and BCN2 of the high voltage unit (HVU)
5. Replace fuser unit.
6.
Replace
the IOD1
P.W.B.
7.Replace MCTL PWB
(wire
cut/
short
error
of ther-
mistor)
MCTL
11CN
42
44
TH1
TH2
IOD1
DCN1 DCN14
HVU
42
44
TH1
TH2
BCN2
TH2
TH1
16
18
16
18
Fuser Unit
Fuser Connector
1
2
3
4
Содержание Super Script 4400
Страница 1: ...NEC SuperScript 4400 4400N Maintenance Guide 18 September 1998 Part Number 703 A0240 001 ...
Страница 3: ...i SuperScript 4400 Maintenance Guide ...
Страница 61: ...52 SuperScript 4400 Maintenance Guide ...
Страница 71: ...62 SuperScript 4400 Maintenance Guide ...
Страница 125: ...116 SuperScript 4400 Maintenance Guide ...
Страница 145: ...136 SuperScript 4400 Maintenance Guide IOD2 P W B Registration Clutch Side Cover R Cleaner Clutch Fuser Clutch C ring ...
Страница 174: ...Replacement Procedures for Maintenance Parts 165 PRINTER MAINTENANCE Controller Fan Fan Case Interlock Switch ...
Страница 189: ...180 SuperScript 4400 Maintenance Guide Toner Sensor TPD Toner Sensor TTR Fram Ass y ...
Страница 193: ...184 SuperScript 4400 Maintenance Guide Stay A Ass y Transfer Drum ...
Страница 197: ...188 SuperScript 4400 Maintenance Guide Hinge arm Hinge holder Front hinge L Front Inner Cover Front Cover Unit ...
Страница 203: ...194 SuperScript 4400 Maintenance Guide Stay A Ass y ...
Страница 267: ...258 SuperScript 4400 Maintenance Guide ...
Страница 273: ...264 SuperScript 4400 Maintenance Guide ...
Страница 287: ...XIV SuperScript 4400 Maintenance Guide F G H I J ...
Страница 289: ...XVI SuperScript 4400 Maintenance Guide ...
Страница 290: ...SuperScript 4200N and 4400 Series Printers Maintenance Guide March 1999 703 A0322 001 Addendum ...
Страница 293: ...ii Superscript 4200N and 4400 Series Maintenance Guide Addendum ...
Страница 295: ...iv Superscript 4200N and 4400 Series Maintenance Guide Addendum ...
Страница 302: ...7 ...
Страница 314: ...19 NOTES ...
Страница 315: ...20 Superscript 4200N and 4400 Series Maintenance Guide Addendum ...
Страница 316: ......
Страница 317: ...P N 703 A0322 001 NEC Technologies Inc 1250 N Arlington Heights Rd Itasca IL 60143 www nectech com ...