Lead Edge Registration Adjustment (Sp) - Ricoh FT5233 Service Manual

COPY QUALITY ADJUSTMENT
9.15 VERTICAL MAGNIFICATION ADJUSTMENT IN DUPLEX/
OVERLAY MODE (SP45)
When:
Purpose:
How:
NOTE: Normally in duplex/overlay mode, the first image is a little shorter
than the second image in the paper travel direction, because paper
length becomes a little shorter after fusing the first image. The
second image is transferred on the copy paper before paper returns
to normal length as it does under normal condition.
This adjustment is not to make vertical magnification accurate, but to
make the first and the second images fit, especially in overlay mode.
Since copies cannot be made in this SP mode, turn the main switch
off and on, and make a copy to check the results of the adjustment.
SP45: Duplex Magnification
0 1
No
+0.4%
Correction
9.16 LEAD EDGE REGISTRATION ADJUSTMENT (SP42)
When:
Purpose:
Adjustment standard:
How:
SP42: Registration
0 - 15 (8 = default, – 4.0 mm to +3.5 mm), 0.5 mm per step
If vertical magnification is different between the
first and second images in duplex/overlay mode.
To equal vertical magnification between the first
and second images in duplex/overlay mode.
SP45 increases vertical magnification for the first
image to equal that for the second image.
2 3 4
+0.2% +0.6% +0.8% +1.0% +1.2% +1.4% +1.6% +1.8% +2.0%
If lead edge registration is not within the
adjustment standard.
To maintain a proper lead edge registration.
0 ±2 mm (0 ±0.08")
SP42 changes the registration roller start timing.
5 6 7
5-100
12 February 1992
8 9 10