Xerox 8855 用户手册
XES Synergix 8825/8830/8850/8855 Digital Solution User Guide
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Document quality (continued)
Preparing documents
When preparing documents for scanning, keep the following points in mind:
If documents have been stored rolled up, flatten them out. They will be much
easier to handle if they have been stored flat for at least eight hours. The
longer that documents have been stored flat, the easier it will be to scan
them. Rolled-up documents will typically roll back up after being
scanned.
longer that documents have been stored flat, the easier it will be to scan
them. Rolled-up documents will typically roll back up after being
scanned.
If possible, sort the documents you are going to scan according to these
guidelines:
− First, group the documents by media type -bond, vellum or film.
Within each document type, you can further group the documents by
image type (e.g., blueprint, pencil, sepia, line, photo, mixed (photo
and line, blueline and pencil), and so forth).
image type (e.g., blueprint, pencil, sepia, line, photo, mixed (photo
and line, blueline and pencil), and so forth).
Line documents contain lines or text against a highly contrasted
background.
background.
Photo documents are continuous-tone or grayscale images.
Mixed/Custom documents contain both line elements and photo
elements or halftone images.
elements or halftone images.
Scanning groups of documents of the same type minimizes the
number of changes you will need to make to the Image Quality
settings.
number of changes you will need to make to the Image Quality
settings.
− Next, divide the documents in each media type group into "good" and
"bad" piles based on your evaluation of their foreground and
background quality. See "What is a good quality document?" and
"What is a bad quality document?" in this section for assistance in
doing so.
background quality. See "What is a good quality document?" and
"What is a bad quality document?" in this section for assistance in
doing so.
By grouping the documents in this way, you can scan the good
quality documents first. Then you can focus on the bad quality
documents, which will require more attention.
quality documents first. Then you can focus on the bad quality
documents, which will require more attention.
− Next, determine if any of the documents are inverted (i.e., white or
light foreground against dark background). If any documents are
inverted, refer to "Inverting an image" in the "Special features keys"
section.
inverted, refer to "Inverting an image" in the "Special features keys"
section.
− Finally, sort the documents by size. This minimizes the number of
times you will need to change the Media Selection Output Format
settings when using preset or custom format sizes.
settings when using preset or custom format sizes.