Achieving a maximum printing speed of
15,000 sph
High-speed printing capability has become a must in the modern marketplace. The new edition of our popular Jp4p440 model (40-inch sheet 4-over-4 perfector) now achieves 15,000 sph (versus 13,000 sph with the previous model), while the new version of the Jp5p540 (40-inch sheet 5-over-5 perfector) runs at 14,000 sph (versus 13,000 sph with the previous model). The rigidity of each respective mechanism has been improved as well, allowing these units to withstand higher revolutions and thereby ensure stable printing operation at higher speeds. These printing presses will be sure to satisfy customers who seek better revenue through increased printing speed. 
Feeder and delivery
mechanisms provide stable
feeding and delivery
We developed a new sucker head for the control of feeding papers. The sucker head currently used in our straight press, eXtreme--which boasts an operating speed of 16,000 sph--has been improved. This, along with the greater rigidity mentioned above, enables stable sheet-feeding at the highest Jprint operating rates.

The feeder table employs an air suction tape that creates a vacuum to pick up and align the paper at high speed and transfer it to the swing.

The swing gripper base--which is now made of a new, improved material--also incorporates a number of improvements, notably a better layout and increased durability. In addition, a newly developed mechanism has been installed to prevent overrun.

The delivery section has two additional transfer cylinders to significantly suppress paper movement. Another addition is a paper-guiding endless tape that operates at the same peripheral
speed as the rod. It transfers the printed sheet from the final transfer cylinder to the delivery belt in a parallel motion, so that the worry of rubbing and scratching the product is eliminated.

The control mechanism of paper-release cams has also been changed to one that is based on special algorithms for the selection of paper thickness, so that the cams’ movements more closely follow the printing speed. Accordingly, various types of papers can be supported. There is virtually no need to adjust the speed of the delivery fan or the slowdown-suction wheel for each job, which further simplifies the operator’s work and helps achieve a better overall result.

Additionally, the gripper shaft uses Akiyama’s original double-cam mechanism to ensure that the sheets are transferred smoothly at high operating speeds and fan-out is prevented.

The slowdown suction wheel structure is new, as well. It can now be installed and/or removed together with the auxiliary suction piece, and the lateral movement has been made easier too.
Ensuring high quality
The MEGA Jprint takes the Jprint’s high printing quality to an even higher level. For example, the cylinder machining method was revised to improve registration accuracy, while the oscillating amount of form rollers has been changed in order to eliminate ghosting. Furthermore, the ink air-blow device has been modified to prevent the excessive emulsification of ink. These functional improvements further ensure the high printing quality for which the Jprint brand is renowned.
New operation stand (ACC)
First, the new ACC operation stand supports higher control speeds of the ink-key motors within the press, so that the values entered at the stand are enacted by the ink keys in half the time required on the traditional stand, or even less than that. This makes it easier to design a CMS, and spoilage (waste paper) can be reduced as well. The benefit is that printing jobs can go full-scale more quickly and press time can be used more effectively.
Also, while the traditional ACC operation stand was mostly operated with a keyboard (with mouse), the new operation stand employs a touch panel. This is significant news for the operator, who can now easily perform various operations simply by touching the screen.

The enhanced troubleshooting and maintenance reminder functions contribute to the efficient operation of the press. Because the customer will perform regular preventive maintenance based on alerts from the ACC, sudden stops and other problems in the press can be prevented and the operator can manage the system with less effort.

It is compatible to the CIP 4, and our original production system is also equipped as standard. The pre-press data, ink-key data and various other input can be controlled for each job. When a repeat order is received, simply call up the past order to restore all settings automatically.
Greater automation for
savings in energy and labor

The Jprint series has always featured a wide range of labor-saving devices, automation devices and energy-saving devices.

Large amounts of electricity are required for high-speed printing, but the MEGA Jprint minimizes those power requirements by using

an inker clutch as an optional component in each printing unit . The inking drive of a printing unit not currently being used for printing can be separated from the main power line through a simple operation on the touch panel at the delivery section, thus limiting the unnecessary consumption of power. Roller wear is also prevented, because they are not used when the corresponding printing units are idle.

The customer can also choose to install the optional FAPC (Full Auto Plate Changer). When the FAPC is installed, plate changeover becomes a more convenient operation. Simply set the new plate on the plate guide, and all required operations--from ejecting the previous plate to setting the new plate--will be performed automatically. Previously, the U-cut plate had to be inserted into the pins manually and with skill. With the FAPC, however, plates can be changed effortlessly. Of course, Akiyama’s original cylinder configuration remains intact, meaning that the top and bottom plates maintain the same phase. As a result, it takes only about four minutes to change plates—a significant improvement over the annoyingly long make-ready times experienced with ordinary sheet-fed printing presses.

While maintaining the original Jprint design concept of “a compact, double-decker printing press featuring a single-sized cylinder layout,” and retaining all the automation/labor-saving features that Jprint users have come to trust, the system has become even better. We will seek further improvements for the Jprint series by always thinking from the customer’s viewpoint, and will continue to offer quality printing presses.