Analysis of Technical Problems of German Inkjet CTP Plate-making Machine

Glunz & Jensen has launched the Plate-Writer 2400 inkjet CTP platesetter. The machine is characterized by a plate-recording system and its non-photosensitive iPlate plate, so it can be operated in daylight. Since the used printing plate is subjected to electrochemical roughening treatment, it belongs to a printing plate with no temperature sensing and no photosensitive coating.

The CTP inkjet system can produce printed aluminum plates without chemical development. The patented special ink LiquiDot directly records the printed image information on the uncoated aluminum plates. When in use, the printing plate is placed on the input table, and the printing plate is automatically input. The optical sensor recognizes the front edge of the printing plate and checks the positioning accuracy to ensure that the printing plate is aligned. In the post-processing part, the newly-made offset plate is fixed, and then the glue is automatically applied. The machine can output 2880dpi resolution? Equivalent to 30μm FM dot precision printing plate, and can produce 6 B3 printing plates per hour, to ensure the output demand of small printing plants.

Navigator-RIP obtained a Harlequin license to control the iCtP platemaking system. All the dedicated RIP parameters are adjusted in the so-called Page-Setup layout setting dialog box, and the resolution, media size, etc. are set in this dialog box.

The calculated bitmap is transmitted to the Inkjet Printer through the USB interface, which prints the image bidirectionally on the anodized aluminum plate. Through various settings of RIP, you can calculate gray scale, imposition, spot color, CMYK color or RGB color data. Calibration curve can be drawn through CalibrationManager calibration management software. With the adjustment of the curve, the inkjet can achieve high-quality printing.

In order to achieve the perfect effect, select the preset and stored curves in the CalibrationManager, so that the equipment can be put into production soon after installation. It has stored the most commonly used plate size. The distance between the image and the edge of the printing plate can be adjusted individually.

Standard configuration of Plate-Writer 2400 Plate-Writer inkjet print engine with post-processing workstations for drying, fixing and gluing Plate input and output stations RIP workstations connected to Mac and PC. XitronRIP with iScreening screening technology based on Harlequin , Support Epson 4800/4880, 7800/7880, 9800/9880 color proofing startup ink set of environmental protection In the face of global climate change issues, ecological concepts are becoming more and more important in modern printing companies. The iCtP inkjet plate-making system conforms to ecological and environmental protection concepts, because it uses an additive plate-making solution, and no longer needs to develop the printing plate, thereby saving the cost of developing chemicals and their emissions and equipment cleaning.