Toshiba E-Studio 5540c - Moire;Lack of Sharpness

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ERROR CODE and TROUBLESHOOTING
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8.5.6 Moire/lack of sharpness
Fig.8-14
Moire
Lack of sharpness
Cause/Section Step Check item Measures Remarks
Density
reproduction
1 Check the gradation
reproduction.
Perform the forced
performing of image quality
closed-loop control (05-2742)
and then automatic gamma
adjustment.
Parameter
adjustment
value
2 Check the image processing
parameters.
Check the sharpness
adjustment value.
3 Adjust the image processing
parameters.
While checking the above
encircled images A and B,
decrease moire by sharpness
adjustment.
Printer section 4 Check the printer output
image.
Output the test patterns and
check them.
Color: using 04-231 for each
color
Black: using 04-113
When defects
occur,
perform the
correspondin
g
troubleshootin
g procedures.
Cause/Section Step Check item Measures Remarks
Density
reproduction
1 Check the gradation
reproduction.
Perform the forced
performing of image quality
closed-loop control (05-2742)
and then automatic gamma
adjustment.
A
B