First copy time
The time from the document/image is sent for copying till the copier is ready and the first (black and white) page is printed. The faster the first page out, the better.
Max resolution
The maximum number of dots of ink applied to paper while printing. Specified as vertical/horizontal (for example, 4800x1200) or as the number of dots per inch (for example, 1200 dpi).
Double-sided copy
Ability to automatically make
a copy of both sides of the sheet. There is no need to manually turn the sheet. Often used to save paper (for printing documents of little importance) or to make booklets, etc.
Grammage (min)
Standard copiers are designed to print only on light grammage plain paper. The thicker the paper, the more difficult it is to handle with it. Too low paper grammage leads to sheets jamming. Therefore, the greater the difference between the minimum and maximum paper grammage used by the copier, the better.
Black Ink Page Yield
The maximum number of pages that the printer's ink can copy. The value is rather conditional, in fact the deviations from this value are very large (up or down).
More Features
— USB. Universal high-speed port used to connect various peripherals to a PC and other devices. Allows you to connect up to 127 devices per port. The most common and promising connection type for PC.
— LAN. The ability to connect a copier (usually with additional functions of a printer, scanner, fax, etc.) to a PC/multiple PCs via computer network. Suitable for "multi-user environment" — office sharing, etc.
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Printer. Ability to use the copier as a printer. The device connects to a computer via a wired or wireless interface. In fact, such models are a variant of the MFP, where the copier function is a priority.
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Scanner. Ability to use the copier as a scanner. The device connects to a computer via a wired or wireless interface. In fact, such models are a variant of the MFP, in which the copier function is a priority.
— Finisher. Allows you to bind the processed copies/printed materials with staples.
— Rotary hammer. The presence of a punching unit allows you to make holes in the processed copies/printed materials for subsequent binding.
— Folding. Possibility of the copier/MFP to fold the processed pages. It is applied to production of various booklets.
