IQ paper the A4 format the Standard density of office paper — 80 g on square meter. Any office equipment has to work with office paper such density.
IQ paper A4 format
Normal office paper of the A4/A3 format with a density of 80 g/m2 is subdivided into 3 classes:
Class C. Whiteness about 145 CIE.
Without problems it is applied in black - and - white copiers and printers with speed of press/copying up to 35 pages a minute in the mode of the one - sided seal / copying. This office paper is not suitable for color copiers and printers. It is not recommended for inkjet printers.
Class B. Whiteness about 160 CIE.
Without problems it is applied in black - and - white copiers and printers with speed of press/copying up to 180 pages a minute in the mode of the double - sided seal / copying. This office paper gives acceptable quality of the black - and - white press on the inkjet printer.
Class A. Whiteness from 165 CIE.
Without problems it is applied in black - and - white and color copiers and laser and inkjet printers at any speeds of the press, except press/copying of photos. System of classification of office papers in Ukraine and in Europe differ a little. Our class B corresponds European to C, and our B + corresponds to the European B. So DataCopy paper in Ukraine is positioned as office paper of class A, but in Europe it belongs to the class B + .
Recently the border between class C and class B is washed away. Finally it will lead to the fact that there will be two classes of office papers: office paper for daily application and office paper of premium class. It is much more clear for the consumer of office papers.
The format of office paper is the size of its leaf. The format is measured usually in millimeters (mm), is more rare in centimeters (cm). The most widespread format of office A4 paper has the size: 210 x 297 mm. The format of office A3 paper is twice more on the area, and by the size one of the parties same as well as in A4, and another is twice more: 420 x 297 mm. Paper of the A3 format is suitable not for any office equipment. Upon purchase of the photocopier and/or printer it is necessary to watch in the instruction the section of specifications to learn whether this office equipment will be able to work with A3 format paper. Paper of the A3 format is applied in office works much less than A4 format paper. Sometimes in addition it is possible to meet writing paper of the Soviet C11 format: 203 x 288 mm. It is slightly less, than the A4 format.
At last, for office devices A3 + format paper meets. This size is slightly more, than A3, namely: 329 x 483 mm.
Other formats of paper are not considered as office. Though these formats can be present at office office equipment. For example, work on formats smaller, than A4 is provided in many printers and copiers. In particular, work on format of photos 10 x 15 cm and even the press on compact disks is provided in many office inkjet printers.
Portrait (book) orientation of office paper — the big party of paper down, and smaller across.
Landscape (album) orientation of office paper is, on the contrary, when across the big party, and smaller down.
Density of paper is weight of sheet of paper of the single area. Usually density of paper is measured in grams on 1 square meter. If say to you that paper has density of 120 g/m2, then it means that the sheet of this paper of 1 square meter will weigh 120 g. Very often buyers confuse density of paper and its thickness. They in the delusion try by method of palpation to determine its density. For this reason upon paper purchase many buyers want to feel paper.
The standard density of office paper — 80 g on square meter. Any office equipment has to work with office paper such density. Why such density of 80 g/m2, but not another became the standard density of paper? This standard was established by Xerox firm after Xerox has invented the photocopier.
Matrix the printer and typewriters can work with office paper of smaller density, about 60 - 65 g/m2. Such paper more often is called writing. Its small density is connected with opportunity to work with carbon paper and to print at once up to five copies. Laser and jet the printer, and also copiers do not guarantee work with office paper of such small density.
Printers and copiers can work with office paper of higher density, than 80 g/m2. Before buying office paper of higher density it is necessary to glance in the Instruction to your printer and/or the copier and to look with what maximum density of office paper your office equipment can work.
The main density of office papers — 65, 80, 100, 120, 160, 200, 220, 250 and 280 g/m2