Toshiba E-studio5540c - Page 296

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ERROR CODE and TROUBLESHOOTING
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8.5.4 Poor image density, color reproduction and gray balance
Fig.8-11
Cause/Section Step Check item Measures Remarks
Density / Color
reproduction /
Gray balance
1 Check the image density / color
reproduction / gray balance.
Perform the enforced
performing of image quality
closed-loop control (05-2742)
and then automatic gamma
adjustment.
Printer density 2 Check the density of printer
output image.
Output the test patterns and
check them.
Color: using 04-231 for each
color
Black: using 04-113
Laser array breakage detection
pattern: print it out at the code
04-286.
See step
5 if defect
occurs.
Scanner 3 Check if the original glass,
mirrors or lens is dirty.
Clean it.
Parameter
adjustment
value
4 Check the image processing
parameters.
Adjust the color balance (color).
Adjust the image density.
Check color reproduction. Check color reproduction.
Check image density.Check gray balance.