Imaging Artifacts
231
TROUBLESHOO
TING
18. Toner Streak -
Brush mark line of uneven optical density is caused in the image.
Main Causes
1.
Main blade of the developer unit and the reset roller is not normal
2.
Location of the toner module is not correct.
3.
Transport paddle in the toner module is deformed.
4.
Brush mark line appears in the continuous printing of high coverage (solid) pattern.
Countermeasures
1.
Reseat the toner module.
2.
Remove the toner module and rock it left to right.
3.
Replace the toner module. (See Chapter 6)
OPC Belt Cartridge
Drum Cleaner
K
Y
M
C
Toner Module
K(Black)
Y(Yellow)
M(Magenta)
C(Cyan)
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: ......