Comparison Canon i-SENSYS MF641CW vs Canon i-SENSYS MF643CDW

Black and white copy speed – the number of copies of one page that the MFP can produce in 1 minute. Typically indicated for poor print quality. This option is important if you often need to make many copies of a single document.

Colour copy speed – the number of full-colour copies of one page that the MFP can produce in 1 minute. Generally slower than black and white copy speed.

The number of pages the printer can produce per minute in black and white mode. Typically indicated for low print quality, higher print quality takes longer. This setting is important if you need to frequently print text documents.

The number of pages the printer can proceed per minute in colour mode. As like b/w printing, the print speed is usually indicated in the worst quality (at maximum speed), in higher quality the print speed is lower. This setting is worth paying attention to if you need to print colour graphic materials frequently.

Feature of a double-sided printing function. This mode implies that after printing on one side, a special gear turns over a sheet of paper and feeds it for printing on the other side. This not only saves the user from manual paper turn-overs, but also exclude the risk of printing the second side upside down.

The minimal paper grammage that the MFP can print on. The grammage of the paper depends primarily on its thickness; thin paper takes up less space and weighs less, but using paper that is too thin can lead to unpleasant consequences, including jamming the sheets in the printer.

The maximum noise level coming from the MFP during operation. The smaller this value, the more comfortable the use of the device. For office use, this parameter is not so important, but you should pay attention to it if you are going to use the device at home. It is easiest to evaluate a specific noise level using special comparative tables. For example, the quietest modern MFPs can operate with 34-35 dB noise level which is approximately corresponds to a muffled conversation, and the heaviest and most performant models give out up to 75 dB — this is comparable to a scream or a loud laugh at a distance of 1 m.