Service manual

ADJUSTMENT
2-72
2 ADJUSTMENT
No.1
Overall halftone
Check item
●
When density is set to 70 (halftone)
If there are white stripes, black stripes, or uneven density, determine whether the fault is with the
scanner or the printer.
●
When density is set to 0 (white)
If the test pattern is gray background, determine whether the fault is with the scanner or the printer.
●
When density is set to 255 (black)
If the density is light, determine whether the fault is with the scanner or the printer.
* The above density settings are typical values. See [18] "Test pattern density setting" for more infor-
mation on density setting.
Test patterns
Density set to 70 Density set to 0 Density set to 255