32If you use paper that is unsuitable for printing, they may cause paper jams anddeterioration in print quality. We recommend you to use the types of paper listed below toobtain the best results from your printer.2.1.1 Recommended PaperPlain Paper (general-purpose)When you are printing on plain paper (general-purpose paper), the plain paper used shouldmeet the following standards. However, for better printing, standard paper isrecommended.G.S.M. or g/m 2 is a measure of the substance of paper expressed ingrammes per square meter, which does not depend on the number ofsheets in the ream. Ream weight is the weight of a 788 x 1,091 mm reamconsisting of 1,000 sheets.Plain Paper (Standard)The types of standard paper for DocuPrint C621 are as follows:2.1 Paper HandlingPaper SupplyManual TrayTrays 1, 2 and 3StandardG.S.M.: 64 to 220 g/m2Ream weight: 55 to 189 kgG.S.M.: 64 to 105 g/m2Ream weight: 55 to 90 kgPaper TypeFXJ Paper(For colour, one-sided printing)FXJD Paper(For colour, two-sided printing)FXP Paper(For monochrome printing)StandardG.S.M.: 82 g/m2Ream weight: 70 kgG.S.M.: 98 g/m2Ream weight: 84 kgG.S.M.: 64 g/m2Ream weight: 55 kg
