Replacement Procedures for Maintenance Parts
197
PRINTER MAINTENANCE
7.7.1 Fusing Heater Lamp
Tools
Phillips Screwdriver #1, #2
Disassembly Procedures : See the layout of fuser unit parts.
1.
Remove the set screw ST3X6 (1 pc.) of F. cover (L), and F. cover (L).
2.
Remove the set screw ST3X6 (1 pc.) of F. cover (R), and F. cover (R).
3.
Pull F. terminal (L) of fuser roller side toward you, and remove the fusing heater lamp (400W) from F.
terminal.
4.
Pull out the fusing heater lamp (400W) from the fuser roller (inside).
5.
Pull F. terminal (L) of back-up roller side toward you, and remove the fusing heater lamp (300W) from F.
terminal.
6.
Pull out the fusing heater lamp (300W) from the back-up roller (inside).
Assembly Procedures
1.
Prepare a new heater lamp (300W)/(400W). (2 heater lamps come in one set.)
2.
Insert the heater lamp (300W) into the back-up roller.
3.
Support the electrode of heater lamp with the F. terminal (R) and (L) at the back-up roller side.
4.
Insert the heater lamp (400W) into the fuser roller.
5.
Support the electrode of heater lamp with the F. terminal (R) and (L) at the fuser roller side.
6.
Install F. terminal (L) and F. terminal (R).
Caution!
Do not touch the surface of heater lamp with dirty hands.
Capacity of the heater lamp is different between the fuser roller side and back-up roller side. Each capacity is
marked on the insulator of lamp's electrode.
Fuser roller side: 400W (Length: 342mm)
Back-up roller side: 300W (Length: 332mm)
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: ......