Ink Jet
Specialties Graphic Finishers Ltd. Can now provide you with more options, better quality and faster service than you ever believed possible.
Inkjet imaging just got better.
Our new system out-strips the competition by a country mile. Our inkjet system can be run independently or combined with our folder, stitching, labeling, tipping or overwrapping equipment. Whether variable message; bar code types; random numbering; sequential number or a customer logo added to your project. We can do it better! On either offset or coated stock.
Our advanced technology supplies three different languages for bar coding, plus changeable customer criteria for variable messages. Service includes bag, bundle and tying of your product off our equipment then shipping directly to the Post Office.
How Inkjetting Works
Computers control our inkjet system’s printing heads that form characters. The heads shoot up to 48,000 characters per second. This makes it possible to print up to 45,000 lines of type every minute. Thus, our inkjet printer, when properly programmed, could print one copy of a 350-page book every 37.5 seconds. At present the process can print only line art graphics (illustrations). We are producing halftones experimentally.
The printing head, Fig. 1, is made of inkjets spaced 1000 to the inch. There may be as many as 1280 jets on a printing head. An individual inkjet is used for each dot in a row of many dots across the printing surface. Ink is forced through the jet where ultrasonic vibrations break it into tiny drops, Fig. 2. A computer controls each jet and each drop of ink. The computer makes 25 million decisions every second.
The ink drops pass through a charge plate. Our computer “reads” the information fed into it and charges some of the drops. The falling ink drops pass through a very strong electrostatic field. The charged ink drops are deflected into a reservoir and the ink is reused. The ink drops that did not receive a charge are not affected by the electrostatic field and fall onto the paper where they create the specified pattern.
Instead of generating a single character at a time, the inkjet prints the entire line simultaneously. However, neither plates nor type touch the paper. Tiny particles of ink drop on to the paper sources.
Another type of inkjet system depends upon the behaviour of fluid ink to form alphanumeric characters, Fig. 3. (Alphanumeric means letter and numbers). The ink is under the influence of ultrasonic vibration, electrostatic and hydraulic pressure.
The pressurized ink stream from a single nozzle assembly is broken into tiny drops by ultrasonic vibration. As the ink passes through a charging tunnel, each drop receives a proportional negative charge just before the drop breaks off.
The ink drops proceed through a pair of deflection plates. The negatively charged ink drops are deflected up towards the positive deflection plate. The degree of charge determines the degree of deflection that is, drops receiving a lesser negative charge. The degree of deflection controls where the drops will strike the printing surface.
Uncharged drops are not deflected. They are picked up by an ink sensor and returned to the ink supply. Our computers contain the material or information to be printed. Coupled with the printing head they generate the electrical impulses, which guide the droplets of ink.
The most important uses for our inkjet printers are in magazine addressing and in direct mail applications.
However, since our inkjet process is capable of printing on almost any type of surface - rough, smooth, and in some cases, three dimensional, we are developing many new uses. We can inkjet membership cards 100-up on a 28 x 40-inch sheet ... that's 100 numbers up, with up to 20 digits each and we can also number up to 20 digits in 2 positions parallel or at right angles!
Our advanced technology supplies three different languages for bar coding, plus changeable customer criteria for variable messages. Service includes bag, bundle and tying of your product off our equipment then shipping directly to the Post Office.
How Inkjetting Works
Computers control our inkjet system’s printing heads that form characters. The heads shoot up to 48,000 characters per second. This makes it possible to print up to 45,000 lines of type every minute. Thus, our inkjet printer, when properly programmed, could print one copy of a 350-page book every 37.5 seconds. At present the process can print only line art graphics (illustrations). We are producing halftones experimentally.
The printing head, Fig. 1, is made of inkjets spaced 1000 to the inch. There may be as many as 1280 jets on a printing head. An individual inkjet is used for each dot in a row of many dots across the printing surface. Ink is forced through the jet where ultrasonic vibrations break it into tiny drops, Fig. 2. A computer controls each jet and each drop of ink. The computer makes 25 million decisions every second.
The ink drops pass through a charge plate. Our computer “reads” the information fed into it and charges some of the drops. The falling ink drops pass through a very strong electrostatic field. The charged ink drops are deflected into a reservoir and the ink is reused. The ink drops that did not receive a charge are not affected by the electrostatic field and fall onto the paper where they create the specified pattern.
Instead of generating a single character at a time, the inkjet prints the entire line simultaneously. However, neither plates nor type touch the paper. Tiny particles of ink drop on to the paper sources.
Another type of inkjet system depends upon the behaviour of fluid ink to form alphanumeric characters, Fig. 3. (Alphanumeric means letter and numbers). The ink is under the influence of ultrasonic vibration, electrostatic and hydraulic pressure.
The pressurized ink stream from a single nozzle assembly is broken into tiny drops by ultrasonic vibration. As the ink passes through a charging tunnel, each drop receives a proportional negative charge just before the drop breaks off.
The ink drops proceed through a pair of deflection plates. The negatively charged ink drops are deflected up towards the positive deflection plate. The degree of charge determines the degree of deflection that is, drops receiving a lesser negative charge. The degree of deflection controls where the drops will strike the printing surface.
Uncharged drops are not deflected. They are picked up by an ink sensor and returned to the ink supply. Our computers contain the material or information to be printed. Coupled with the printing head they generate the electrical impulses, which guide the droplets of ink.
The most important uses for our inkjet printers are in magazine addressing and in direct mail applications.
However, since our inkjet process is capable of printing on almost any type of surface - rough, smooth, and in some cases, three dimensional, we are developing many new uses. We can inkjet membership cards 100-up on a 28 x 40-inch sheet ... that's 100 numbers up, with up to 20 digits each and we can also number up to 20 digits in 2 positions parallel or at right angles!