Ricoh infotec 3671F Service Manual page 21

DETAILED SECTION DESCRIPTIONS
SCANNER
Standard resolution (Scanning to memory)
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3.85 line/mm resolution.
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One line is read each motor step.
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Scan speed: 2.75 s /A4 size.
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The tx motor rotates at 800 pps to scan the document into the memory.
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OR processing is always disabled to make scanning faster.
Standard resolution (Immediate tx)
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3.85 line/mm resolution.
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One line is read every two motor steps.
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Scan speed: 5.5 s /A4 size.
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The tx motor rotates at 400 pps to scan the document.
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OR processing is done, to prevent narrow vertical lines from being bro-
ken up (OR processing can be disabled with scanner switch 00, bit 4).
Detail resolution
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7.7 line/mm resolution.
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One line is read every motor step.
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Scan speed: 5.5 s /A4 size.
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The tx motor rotates at 400 pps to scan the document.
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In copy and halftone mode, scanning always uses detail resolution.
Fine resolution
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15.4 line/mm resolution.
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One line is read every motor step.
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Scan speed: 11.0 s /A4 size.
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The tx motor rotates at 400 pps to scan the document.
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July 30th, 1996