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User’s Manual
4-16
Gray
Document Type: Choice: Normal, Photo, Document
Three options of document type are provided when you choose
Gray as the image type for your scanned document. Choice:
Normal, Photo, Document.
Document: Choose Document if your original contains
pure text or a mixture of text and graphic since it is an
optimal setting for regular business document. When
using Document, only Threshold can be adjusted.
Photo: Choose Photo if your original contains photo to
reproduce your photo in vivid grayscale image. When
using Photo, no Threshold and Contrast can be adjusted.
Normal: When using Normal, Threshold, Brightness, and
Contrast can be adjusted.
Threshold: The value ranges from 0 to 255. The default is
230. A low threshold value produces a lighter image, and can
be used to subdue backgrounds and subtle, unneeded
information. A high threshold value produces a darker image,
and can be used to help pick up faint images. Adjust the
threshold setting by dragging the Threshold sliding bar to the
left or right to achieve the desired threshold setting.
Содержание AD280F
Страница 1: ...Document Scanner User s Manual Regulatory model DL 1510B DL 1509B Avision Inc...
Страница 24: ...User s Manual 3 6 5 Verify that the paper guides are aligned with the edges of the stack...
Страница 26: ...User s Manual 3 8 Slide UP the Paper Width switch to set your paper width larger than 216 mm 8 5 in...
Страница 39: ...User s Manual 4 5...
Страница 48: ...User s Manual 4 14 Error Diffusion Image Dynamic Threshold Dynamic Threshold AD...
Страница 51: ...User s Manual 4 17 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230...
Страница 63: ...User s Manual 4 29 The Compression tab dialog box...
Страница 67: ...User s Manual 4 33 The Color Dropout dialog box...
Страница 123: ...User s Manual 7 4 5 Press and wipe the rollers one by one Rotate the roller until the surfaces are completely cleaned...
Страница 127: ...User s Manual 7 8 3 Close the reverse roller Cover 4 Close the ADF cover...
Страница 136: ......