Ricoh B286, Service Manual

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SP Adjustments
SM 3-73 B286/B289
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standard range:
SP Standard Comments
2916-3 Less than ±0.5 Fine Magnification – Translucent: Mode 1-4: Horiz
2916-4 Less than ±0.5 Fine Magnification – Translucent: Mode 1-4: Vert
Step 4: Magnification for Paper Type: Film
1. Make a 1:1 copy of the A0 SEF Magnification Chart with film.
! You can use a different test chart if it has lines 1000 mm long in the sub-scan
direction and 700 mm long in the main-scan direction.
2. Measure the length and width of the images on the original and the copy.
3. Do the same measurements for “Magnification for Paper Type: Plain.”
4. Do these SPs in the sequence shown in this table, if the measurements are not in the
standard range:
SP Standard Comments
2916-5 Less than ±0.5 Fine Magnification – Film: Mode 1-4: Horiz
2916-6 Less than ±0.5 Fine Magnification – Film: Mode 1-4: Vert
Step 5: Scanner Mask Setting
SP Set To: Comments
4012-5 0 Scanner Erase Margin DF – LEdge
4012-6 0 Scanner Erase Margin DF – TEdge
4012-7 0 Scanner Erase Margin DF – Left
4012-8 0 Scanner Erase Margin DF – Right
Step 6: Erase Margins
Set these SPs to “5” to make measurement easier: