Frequently asked questions

FAQ

Answer:
"Technology Without An Interesting Name" would have been nice but the TWAIN group website has the real answer. TWAIN and WIA are two of the 'languages' that Windows can use to talk to a scanner. WIA is installed by Windows if it get's the chance while TWAIN is the more capable one and it is always provided by the scanner manufacter. Scan & Attach uses TWAIN.
You can find a list of scanner manufacturers here if you need a TWAIN driver for your scanner or simply use google this way:

Search example for a canon ImageRunner: Cannon ImagerRunner twain driver

Search example for a Fujitsu FI-4530c: Fujitsu FI-4530c twain driver

etc.

In the search results make sure you pick the one leading to the website of the scanner manufacturer.

Question:
We need additional functionality.

Answer:
You are probably not the only one so let us know and we will work something out.

Question:
My buttons are gone from Outlook®

Answer:
Restart Outlook® 2003 and look on the Help, About menu. Click the Disabled items button and enable the add-in when it is listed. in Outlook® 2007 the option is directly on the Help menu.
Outlook® 2000 and Outlook® 2002 don't have the disabled items button so reinstall (repair) Scan & Attach.

Question:
When should I use 1 bit, 8 bit or 24 bit?

Answer:
If the document or picture is in color and you want it to be scanned in color, use 24 bit. For text documents that were scanned from a good source document, the 1 bit B/W setting will produce readable text even at the lowest dpi setting.

1: this was scanned at 1 bit black&white and 100 dpi

2: The same text scanned at 1 bit black&white 200dpi

3: And again but now 8 bit grey and 100 dpi

The file sizes for scan 1 to 3 relate as 4 : 7 : 18

No doubt that #3 produces the best quality even while it is only 100dpi but it comes at a cost. You can send almost 3 pages scanned at 1bit B/W at 200dpi with the same file size as 1 page at 100dpi grey.
Smaller documents load faster, use less storage and handle better.

Question:
What dpi setting should I use for documents ?

Answer:
If the scan will be displayed on screen only, 200dpi maximum. The DPI value will in fact influence only how big the picture will be on screen relative to the total size of the monitor. However if you expect that the scan will be printed then (and only then) you should consider using the higher dpi values (from 300dpi up). For printing it's simply: more pixels will look better on paper. Keep an eye on the 'size in kB' box and try to stay under 3000 kB. A 2400 dpi Letter size document in BMP format as email attachment is not something you will want to send to friends.
More info on dpi here

Scan&Attach is a product by OpusFlow Outlook® and Exchange server add-ons.