Depending on the file format you select, the following limitations will apply:
Single Page [TIFF / JPEG]
Originals scanned in black and white are sent as TIFF files.
According to the settings specified for [Compression (Gray Scale / Full Color)] under [Scanner Features], originals scanned in full color or gray scale are sent in one of the following file types:
[On] : JPEG file
[Off] : TIFF file
Multi-page [TIFF] or [PDF]
When [Full Color: Text / Photo], [Full Color: Glossy Photo], [Gray Scale], or [Auto Color Select] is specified under [Original Type] and [Compression (Gray Scale / Full Color)] is set to [On] under [Scanner Features], you cannot select [TIFF] under [Multi-page].
Even if you select [TIFF] under [Multi-page], files stored in JPEG format are automatically changed to multi-page PDF files and then sent.
High Compression PDF
You cannot select [High Compression PDF] if:
[Black & White: Text], [B & W: Text / Line Art], [B & W: Text / Photo], [Black & White: Photo], or [Auto Color Select] is selected under [Original Type].
[Reduce / Enlarge] is selected.
If [PDF File Type: PDF/A Fixed] in [System Settings] is set to [On], [PDF] and [High Compression PDF] other than PDF/A cannot be selected.
[100 dpi] is selected as the resolution.
[Preview] is selected.
Adobe Acrobat Reader 5.0/Adobe Reader 6.0 and later versions support High Compression PDF.
If [High Compression PDF] is selected as the file type, areas of uneven shade may appear in the halftone sections in the document. If this happens, change the PDF File Setting to [PDF/A].
When the DSM destination list is used.
PDF/A
[Security Settings] in [PDF File Setting] cannot be selected.
OCR Settings
You cannot select [OCR Settings] if:
[TIFF/JPEG] or [TIFF] is selected as the file type.
[100 dpi] is selected as the resolution.
When the DSM destination list is used.