Printer test sheet12/20/2023 If a printer's spec sheet doesn't mention "auto-feeder" or "automatic document feeder," it doesn't have this feature. It includes the speed to place the sheet in the feeder, hit scan, and start scanning the next sheet. In this case, we measure how many pages are scanned in one minute. Sometimes, the printer might have a sheetfed scanner that can't automatically process multiple sheets in a row without user intervention. If the printer has an automatic document feeder, we test how long it takes to scan 20 pages automatically. If you need to scan long documents frequently, you might want to know how long the process might take. Waiting for your printer to scan a long, multi-page document can be very tedious. If it has both types, then it gets Flatbed + ADF. If it has an ADF only, it gets ADF as the result. The results are pretty straightforward: If the printer has a flatbed scanner only, it gets "Flatbed" as the result. This means that instead of having to place each page of a document on the scanner yourself, you just set them all in the input tray, hit start, and the ADF handles the rest. On the other hand, an ADF automatically feeds through multiple sheets of paper into the sheetfed scanner, and the document is ejected once it's done scanning. Since there's usually space for only one sheet on the glass, you can only do one scan at a time. You place the document you'd like to scan on top of the flatbed, and the scan head moves beneath the glass to capture your document. Just like the name suggests, a flatbed scanner has a scan head placed underneath a flatbed of glass or clear plastic. If you want to scan delicate documents like photographs or old letters, or thicker objects like ID cards, passports, or books, then you need a flatbed scanner.
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