Neatreceipts, the basics
This resolution should be sufficient for most basic uses. For more demanding applications however, you may want to look into a higher resolution document scanner. If you are planning to scan photographs as well as documents, you may want to look into a flatbed document scanner. There is a wide array of different models on the market, many with advanced features and attachments. If you want to be able to scan photographs accurately, you will want to go for a document scanner that offers 24 bit sampling capability.