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March 2005 © TOSHIBA TEC
e-STUDIO520/600/720/850 TROUBLESHOOTING
5 - 125
5
2) Background fogging
Fig.5-2
Defective area
Step
Check items
Prescription
Density reproduction
1
Check the reproduction of the image
density.
Adjust the density.
Printer section
2
Check test print image (04-113).
Go to step 4 if there is any problem
on image.
Parameter adjustment
value
3
Check the image processing param-
eter.
Check the range correction setting
and the adjustment value of the
background peak for range correc-
tion. ( ch. 3.3.4, ch. 3.3.5)
If they need to be adjusted, check the
print image in the above circle mark
to adjust the adjustment value of the
background peak for range correc-
tion.
Scanner
4
Are the original glass (especially
shading position),mirrors and lens
dirty?
Clean them.
Developer material/Toner/
Photoconductive drum
5
Using the specified developer mate-
rial, toner and photoconductive
drum?
Use the specified developer material,
toner and photoconductive drum.
6
Have the developer material and the
photoconductive drum reached their
PM life?
Replace the developer material and
photoconductive drum.
7
Is the storage environment of the
toner cartridge 35°C or less without
dew?
Use the toner cartridge stored in the
environment within specification.
Feeding direction
Содержание E-STUDIO520
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Страница 288: ...e STUDIO520 600 720 850 ADJUSTMENT March 2005 TOSHIBA TEC 3 88 ...
Страница 309: ...March 2005 TOSHIBA TEC e STUDIO520 600 720 850 PREVENTIVE MAINTENANCE PM 4 21 4 Fig 4 11 Finisher MJ 1027 1028 P1 P2 ...
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Страница 586: ...e STUDIO520 600 720 850 DATA CLONING with USB STORAGE DEVICE March 2005 TOSHIBA TEC 9 22 ...
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