My Canon Pixna MX860 cannot be set to print background colours. I know this because Canon have told me so. This is no good when you want to print tables in which the individual cells have different background colours (like for example the TrackSat satellite data tables). It seems such an obvious thing that people might want to do. Are there any printers that can do it ?
Is it possible that Canon were answering a slightly different question from the one you asked?
Most modern printers can produce text in two (or more) different ways. At the simplest level the computer needs only send the ASCII characters, and the printer will print them using its own internal fonts etc. There will be a limited number of effects that can also be selected via control sequences - change in typeface, bold, underline etc. Now in this mode its quite likely that the printer can't add a background colour to the text.
However when printing from modern OSs, most printer drivers will do the rasterisation (i.e. the conversion from the mathematical descriptions of the font outlines etc into a pattern of dots) on the host computer itself rather than relying on the printer, and then send the raw pixel data to the printer. When printing like that, I can't see how a printer could manage to avoid printing a background colour - it would look exactly the same to it as any other stream of pixels.
Indeed. Note that some software will include options to print or hide background information when printing.
I am not aware of any modern inkjets that can't (and that would most likely include yours)
After I posted that, the thought did occur to me that the linux one may be different... So I did try looking, but the Ubunto virtual machine I was hacking about with seems to have thrown a wobbly on its virtual disk, and the Suse install I had was so ancient I can't even remember its admin password to install a version of FF that is not geriatric. ;-)
Thanks to Adrian for pointing me to the background options in Internet Explorer. These worked in that they turned background prining on, but showed that in IE (at least) there is a residual problem, in that it can't distinguish between the background in cells of a table and that of the document as a whole For anyone who wants to see this, try printing a page from
formatting link
thanks to all responders for their help and advice, which, as usual, has been both to the point and constructive. It's what makes this ng an especially worthwhile one.
different style for print and screen? ICBA to examine that page to see whether that's what's actually happening in this case, but it's quite possible for the page to ask the browser for a coloured background when displayed on a screen but not when printed. And I'd expect IE to honour that. Possibly.
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