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SuperScript 4400 — Maintenance Guide
7.
White Line II -
Vertical white line appears from the leading edge to the trailing edge of printed image.
Main Causes
1.
Dustproof Glass of Optical Unit is smeared with toner or foreign particles.
Countermeasures
1.
Clean the dustproof glass.
a. Remove the belt module and toner module. (See Chapter 7)
b. Remove the dustproof glass from the optical unit.
c. Clean the dustproof glass. (See Chapter 7)
OPC Belt Cartridge
Paper Cassette
Toner Cartridge
(K,Y,M,C)
K
Y
M
C
Optical Unit
Dustproof Glass
Optical Unit
Dustproof Glass
Laser WARNING Label
OU Cover
Knob
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: ......