Comment 7 for bug 977912

Till,

It is confusing why using the "native" resolution doesn't result in the fastest printing.

Some thoughts (based on some experience with Kyocera products): there may be some extremely poor buffer management going on, meaning that the larger amount of data causes this kind of slow down.

Second, it's possible that the printer is *actually* working at 300dpi dot size, and the higher resolution settings are actually dot *placement* precision - that is rare on laser printers, so I would be surprised, but common on inkjet type printers. We know their *downsampling* of image data is slow.

Third, and something I have seen on laser printers: the printer is using 1200dpi for text and line art, but 300 dpi for contone image work - this is sometimes used because detail is the primary concern with text/line art, whilst colour fidelity is usually more important for contone image output. Again, the slow downsampling would come into play here.

There are plenty of other possibilities, and without some information from Kyocera, we're unlikely to ever know for sure.

Chris