这款HP DeskJet 840C,外观方方正正,是A4尺寸的彩色喷墨打印机,它的打印技术是热感应喷墨打印,采用彩色与黑色的四色双墨盒设计。进出纸器的设计采用进纸和出纸同一个方向(下方为进纸,上方为出纸)的方式,这样的设计可减少摆放的空间,但是在放纸时却不是很方便,尤其是当出纸器有纸时。进纸器 The HP DeskJet 840C, square-shaped exterior, is an A4-size color inkjet printer with thermal inkjet technology and a four-color, two-color cartridge design in color and black. The design of the drawer and outfeed takes the same direction of feeding and discharging (feeding paper in the lower part and discharging paper in the upper part), this design can reduce the space for placing, but it is not very convenient when loading paper, especially When the paper ejector has paper. Feeder