Ricoh B245-62 Service Training page 35

The black line erase feature is the function that erases
black lines made by dust or dirt on the exposure glass. The
feature is validated (default) when you specify a value
other than "0" in SP 4942 1.
When you specify a larger value in this SP, the feature
erases weaker black lines (less black lines). This SP also
affects the width of black lines to be erased. If you specify
"1" or "2," the feature erases the black lines of 1- through
4-pixel width (approximately, up to 0.17 mm); if you specify
"3," the feature erases the black lines of 1- through 6-pixel
width (approximately, up to 0.25 mm). Note that some black
lines on the original may be erased when you specify a
larger value in the SP.
Slide 35
The default value of SP4942-1 is 2.
Refer to SP4942 in the SP mode table for more information.
Black Line Erase
35
B245-62 / PD-C4