The Xerox TWAIN/WIA driver of the WorkCentre 6515 does support black and white scans with “Text/Photo” mode only. The scans use dithering, which is ok for photos, but is *not* ok for text documents. Dithering scans of Text documents produce text with interspersed white speckles in text letters. Text in general appears rather grayish/white instead of black and white.
The local user interface (LUI) does support scans in plain vanilla “Text mode” and will provide improved quality when scanning text documents compared to using "text/photo" setting.
Currently, the "Text mode" option is *not* available with the TWAIN/WIA driver.
The Adobe Acrobat Support pages -> (https://helpx.adobe.com/in/acrobat/using/scan-documents-pdf.html) emphasize:
- “Scanning tips: Avoid dithering or halftone scanner settings. These settings can improve the appearance of photographs, but they make it difficult to recognize text. “
Whereas the WorkCentre 6515 does support plain vanilla black and white scanning via LUI setting "Text mode", the current WorkCentre TWAIN/WIA driver supports black and white scanning with dithering only, i.e. corresponding to a LUI "Text/Photo" setting.
Thus, the current design of the WorkCentre 6515 TWAIN/WIA driver does not conform to the Adobe recommendations, making it difficult to have the Xerox WorkCentre 6515 work properly together with an industry standard legacy product, viz. Adobe Acrobat or other OCR applications.
The Xerox WorkCentre 6515 may safely be characterized as currently actively hampering professional office applications.
I’d appreciate a comment with respect to plans to amend the 6515 TWAIN/WIA driver, such that it supports a black and white “Text mode” as well.
Thanks