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Computer Systems
Published in Sharon Yull, BTEC National for IT Practitioners: Core Units, 2009
Printers are categorized according to the technology that they use: Line printers – contain a chain of characters or pins that print an entire line at a time. Line printers are very fast, but produce low-quality print.Dot matrix printers – create characters by striking pins against an ink ribbon. Each pin makes a dot and combinations of dots form characters and illustrations.Inkjet/bubblejet printers – spray ink at a sheet of paper. Inkjet printers produce high-quality text and graphics.Laser printers – produce very high-quality text and graphics.LCD and LED printers – use liquid crystals or light-emitting diodes rather than a laser to produce an image on the drum.
Multimedia Systems
Published in Sreeparna Banerjee, Elements of Multimedia, 2019
Printers commonly used are inkjet printers and laser printers. Inkjet printers propel droplets of ink onto paper to create digital images. Inkjet printers are made from three types of technologies: (1) continuous, (2) thermal, and (3) piezoelectric. In laser printers, the images are produced by direct scanning of the laser beam across the printer’s photoreceptor. A raster line or scan line is a horizontal strip of dots across the page. The image is produced by a raster image processor, which produces a raster image known as a bitmap that is sent to an output device for printing.
Digital Printing
Published in Asim Kumar Roy Choudhury, Principles of Textile Printing, 2023
Nevertheless, the use of inkjet printers substantially increased only with the rise of desktop publishing, especially due to demand for high-quality color prints. Inkjet printers, as the name implies, use ink to print text, graphics, and images onto various types of paper. These printers are most common in homes and small offices, though many commercial printing companies use industrial inkjet printers to produce high-quality brochures, flyers and other pieces.
Assessment of coffee-ring effect on wool and cotton fabrics inkjet printed with herbal inks
Published in The Journal of The Textile Institute, 2023
Alka Madhukar Thakker, Danmei Sun
For filling formulated plant-based inks in the empty set of cartridges, BD Discardit II syringes of 20 mL and BD Microlance # 3 (needles) were used. The empty syringe fitted with a needle was applied to draw up the plant-based ink stored in the tightly lidded glass bottles. The bigger pink knob at the top of the empty cartridge was opened to let the plant-based ink into the empty cartridge. After that, the method of priming, aka readying the cartridges for setting into the printer, is done from the opposite side of the filling area with the priming adapter provided along with the empty set of cartridges. It involves drawing out 1–2 mL of plant-based ink to discard, as indicated in Figure 9a. The priming step propels the flow of ink from the cartridges to the ink capillaries and tubes, which further connects to the print head responsible for printing the wool and cotton fabrics, as exhibited in Figure 9b. For inkjet printing, the Epson SureColour PC-600 inkjet printer was implemented. It is attuned to the C, M, Y, and K colour model. It consists of 9 cartridges filled with synthetic inks. The original cartridges set in the printer from left to the right direction correspond to yellow colour (Y), vivid light magenta colour (VLM), light cyan colour (LC), vivid magenta colour (VM), cyan colour (C), light, light, black colour (LLK), light black colour (LK), black colour (PK, photo black colour), black colour (MK, matte black colour). The original set of colour cartridges was removed, and the corresponding set of plant-based ink-filled cartridges was set into the printer, as shown in Figure 9c (Thakker, 2022).
Influence of thermal treatment on electronic properties of inkjet-printed zinc oxide semiconductor
Published in International Journal of Smart and Nano Materials, 2022
Van-Thai Tran, Yuefan Wei, Hejun Du
Zinc acetate dihydrate solution in ethanol with a concentration of 50 mM was employed as the ink for printing of zinc precursor in the process published in our previous report [16]. A commercial inkjet printer (Dimatix 2831, Fujifilm) was employed for the printing. For fabrication of UV photodetector, both the semiconductor, i.e. ZnO, and conductor, i.e. silver, were printed on Si/SiO2 substrate. Firstly, two silver patterns were printed to create the electrodes for the device. These silver electrodes are annealed at 150°C to sinter the nanoparticles and improve their conductivity. The silver electrodes are about 100 µm in width, and the space between the two electrodes is 110 µm by 600 µm, which are later covered by the ZnO thin film to form the UV photodetector structure. The zinc salt was printed on top of the silver electrodes to subsequently create metal-semiconductor junctions. The printed zinc salt was then undergone a heating step on a hotplate for 10 minutes at 200°C to form ZnO polycrystalline thin film via the thermal decomposing of the zinc precursor. The printed films were then annealed in a quartz tube furnace (Thermo scientific) for haft an hour at various temperatures from 250°C to 350°C to further improve the film quality.
Using low temperature plasma for surface modification of polyester fabric: dyeing and printing improvement
Published in The Journal of The Textile Institute, 2019
Saied Jamaliniya, Nezam Samei, Sheila Shahidi
Untreated and plasma treated samples were printed with two different methods. In the first method, the FH6100 inkjet printer was used. Each specimen was printed with kaveron Black SRD 300 as disperse dye, fixed at 190 °C, and then washed and dried. In the second method, the samples were manually printed using silk screen printing. The printing paste viscosity was 50 poise, contained 25 g/kg of kaveron black SRD 300, 20 g/l of urea, water and synthetic condensers. In order to investigate the amount of absorbed color in the printed samples, as well as to examine the amount of color penetrated into and behind of the printed samples with two mentioned methods, the reflection of the back and front of the printed samples in 16 different wavelengths was measured using the X-Rite reflectance spectrophotometer model Sp60, and then, the K/S value of each sample was calculated at the minimum reflectance of the samples using Equation (2). The images of printed samples were taken using a USB digital microscope, Micro View (magnification ratio 10–800×).