Toshiba e-STUDIO557 - 8.4.2 Background fogging

e-STUDIO556/656/756/856/557/657/757/857 © 2011 - 2014 TOSHIBA TEC CORPORATION All rights reserved
ERROR CODE AND TROUBLESHOOTING
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8.4.2 Background fogging
Fig. 8-2
Defective area Step Check items Prescription
Adjustment 1 Perform the shading correction. Perform 05-3218. If an error occurs,
retry it. If the error still persists, clean
the original glass.
Density reproduction 2 Check the reproduction of the image
density.
Adjust the density.
Printer section 3 Check test print image (04-114). Go to step 5 if there is any problem
on image.
Parameter adjustment
value
4 Check the image processing
parameter.
Check the range correction setting
and the adjustment value of the
background peak for range
correction. (Ch.6.4.4, Ch.6.4.5)
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
correction.
Scanner 5 Are the original glass (especially
shading position), mirrors and lens
dirty?
Clean them.
Developer material/Toner/
Photoconductive drum
6 Using the specified developer
material, toner and photoconductive
drum?
Use the specified developer material,
toner and photoconductive drum.
7 Have the developer material and the
photoconductive drum reached their
PM life?
Replace the developer material and
photoconductive drum.
8 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