HP-35: Clean images

[striegel]

(08-18-2018 08:57 PM)Dieter Wrote:  ...
Using a scanner for such things indeed may work very well – if (!) it's a conventional CCD scanner.

There are two common types of flatbed scanners: CCD and CIS. The former offers good depth of field which is crucial for copying three dimensional objects. Your Deskjet 3636 multifunction device includes a CIS scanner – which is the technique used in most of today's very flat scanner models. But these provide virtually no depth of field at all...
Dieter

I have to express my thanks to Dieter for the range of things I learn from his posts here. Until now, I've been taking for granted the excellent depth of field of my old HP PSC 950 (around 18.5 mm by my measurements), which has served well for scanning watches and calculators. I didn't realize there was such a range before this.

Alan