Ardf Sub-Scan Magnification; Registration; Image Area; Leading Edge - Ricoh D146 Service Manual

ARDF sub-scan magnification

1. Put the temporary test chart on the ARDF. Then make a copy from one of the feed stations.
2. Check the magnification ratio. Adjust with SP6-017-001 if necessary.
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Standard: ±5.0%
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Reduction mode: ±1.0%
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Enlargement mode: ±1.0%

4.19.3 REGISTRATION

Image Area

A = C = 5.2 mm (0.2"), B = 2.0 mm
Make sure that the registration is adjusted within the adjustment standard range as shown below.

Leading Edge

Adjusts the leading edge registration for each paper type and process line speed.

Side to Side

Adjusts the side-to-side registration for each paper feed station. Use SP mode (SP1-002) to adjust
the side-to-side registration for the optional paper feed unit, LCT, and duplex unit.

Adjustment Standard

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Leading edge (sub-scan direction): 5.2 ± 2 mm
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Side to side (main-scan direction): 2 ± 1 mm

Paper Registration Standard

The registration in both main- and sub-scan directions can change within the following tolerance.
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Sub-scan direction: 0 ± 9 mm
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Main-scan direction: 0 ± 4 mm
SM 4-169 D146/D147/D148/D149/D150
Image Adjustment