Continuous ink system

Last updated
Continuous ink system in an HP Business Inkjet 1200n. The ink is transported from tanks through the black flexible band, which is vertically rigid so it does not fall into the path of the printhead and cause a jam. HP Business Inkjet 1200n - Continuous Ink System - Interior overview.jpg
Continuous ink system in an HP Business Inkjet 1200n. The ink is transported from tanks through the black flexible band, which is vertically rigid so it does not fall into the path of the printhead and cause a jam.
Close-up view of the above printer, showing the individual removable printheads and ink tanks for each color. HP Business Inkjet 1200n - Continuous Ink System - Printhead shown removed.jpg
Close-up view of the above printer, showing the individual removable printheads and ink tanks for each color.
Disassembled view of the above printer. Metal needles insert into the ink tanks to collect ink. The liquid inlet is a notch cut into the side of the needle, with a spring-loaded sliding rubber cap (shown) that slides up over the notch when the tank is removed. This design retains moisture inside the ink supply tubing and prevents dry-out and clogging when ink tanks are either not installed, or are removed for replacement. HP Business Inkjet 1200n - Continuous Ink System - Ink feed system needle overview.jpg
Disassembled view of the above printer. Metal needles insert into the ink tanks to collect ink. The liquid inlet is a notch cut into the side of the needle, with a spring-loaded sliding rubber cap (shown) that slides up over the notch when the tank is removed. This design retains moisture inside the ink supply tubing and prevents dry-out and clogging when ink tanks are either not installed, or are removed for replacement.

A continuous ink system (CIS), also known as a continuous ink supply system (CISS), a continuous flow system (CFS), an automatic ink refill system (AIRS), a bulk feed ink system (BFIS), or an off-axis ink delivery system (OIDS) is a method for delivering a large volume of liquid ink to a comparatively small inkjet printhead. Many business and professional grade printers incorporate a continuous ink system in their design to increase printing capacity.

Contents

Some aftermarket companies also build retrofit accessories to convert certain models of consumer-grade printers into continuous flow systems. Such systems have been frowned upon by most printer manufacturers, as they have been seen as a threat to their business model of selling the printer itself as a loss leader and making their profit off replacement ink cartridges, prompting lawsuits against aftermarket firms or implemented digital rights management measures in their devices [1] (see Razor and blades model). Some manufacturers have introduced new models featuring continuous ink systems. [2] This was seen as a welcome move by users, especially small business owners who rely on bulk-printing solutions, like internet cafes and small-scale print shops. [3]

Comparison to the tank-on-printhead design

Most low-cost consumer printers place small ink tanks directly on the carriage with the printheads. These tanks can have extremely small liquid volumes, as low as 10 mL, and consequently require frequent replacement. It should be also noted that every cartridge replacement is usually automatically followed by head-cleaning cycle of the printer to remove air bubbles from system, further reducing usable ink amount. More expensive, business-grade printers use progressively larger ink tanks on the printhead, but as the platen width and speed of the printer increases it eventually becomes impractical to have the tanks integrated with the printheads due to the high mass and inertia the liquid volume adds to the printheads and the reduced accuracy of printing that occurs.

Separating the ink storage from the printhead may also allow the tank to be refilled or replaced while a print job is in progress. With ink tanks located on the printhead, replacement typically requires repriming and alignment checks that necessarily require aborting any current print job. Separated ink tanks can be refilled or reprimed without disrupting a very large or expensive printing task, such as printing a 2 meter wide by 10 meter long outdoor banner.[ citation needed ]

Retrofit accessory kits

Many continuous ink systems have been developed to cover most Epson, HP, Canon, and other printers. These bulk feed systems also allow users to use inexpensive aftermarket inkjet inks as well as specialty inks for T-shirt transfers or inks for black-and-white printing. These options have allowed users to produce specialty prints at a fraction of the cost of purchasing special cartridges or using more expensive printing solutions.

Retrofit continuous ink tanks designs vary, and most incorporate a constant level, barometric pressure design. Constant-level continuous ink systems deliver a smooth flow of ink to the cartridges as needed. The front tank is vented to atmosphere, and negative gauge air pressure in the back tank delivers ink to the cartridges.

Limitations of retrofitting

Many consumer grade printers are designed with close-fitting and sometimes fully enclosing shrouds over the print carriage. It may be difficult or impossible to install a retrofit kit because there is no room to install the flexible tubing that must flex and bend as the printhead moves back and forth. Jamming may occur if the tubing droops into the path of the printhead and is crushed underneath the printhead or between the printhead and cover. It may be necessary to modify the printer by removing the cover or cutting slots into the body to provide an open space for the tubing.

Some tank-on-carriage printers such as Epson use a fold-over clamping system over the tank to secure it in place on the print carriage. This clamp blocks the path of tubing from a continuous flow system feeding the tanks, and the print carriage may need to be modified by removing the clamp, cutting holes in the clamp, or installing a retrofit open-top clamp.

Typically, modifications to a product's functionality, such as installing an aftermarket continuous ink system, will void the manufacturer's warranty for defects. Some printer manufacturers explicitly state that use of third-party inks and/or aftermarket continuous ink systems will void their product warranty. [4]

Factory supertank systems

Supertank printers – a subset of CISS technology – have high-capacity integrated ink tanks or ink packs, and are manually refilled via ink bottles. When supertank ink systems are paired with disposable printhead technology, replaceable cartridges are used to replace the exhausted print heads.

Related Research Articles

<span class="mw-page-title-main">Printer (computing)</span> Computer peripheral that prints text or graphics

In the field of computing, a printer is considered a peripheral device that serves the purpose of creating a permanent representation of text or graphics, usually on paper. While the majority of outputs produced by printers are readable by humans, there are instances where barcode printers have found a utility beyond this traditional use. Different types of printers are available for use, including inkjet printers, thermal printers, laser printers, and 3D printers.

<span class="mw-page-title-main">Laser printing</span> Electrostatic digital printing process

Laser printing is an electrostatic digital printing process. It produces high-quality text and graphics by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a "drum" to define a differentially charged image. The drum then selectively collects electrically charged powdered ink (toner), and transfers the image to paper, which is then heated to permanently fuse the text, imagery, or both, to the paper. As with digital photocopiers, laser printers employ a xerographic printing process. Laser printing differs from traditional xerography as implemented in analog photocopiers in that in the latter, the image is formed by reflecting light off an existing document onto the exposed drum.

<span class="mw-page-title-main">Dot matrix printing</span> Computer printing process

Dot matrix printing, sometimes called impact matrix printing, is a computer printing process in which ink is applied to a surface using a relatively low-resolution dot matrix for layout. Dot matrix printers are a type of impact printer that prints using a fixed number of pins or wires and typically use a print head that moves back and forth or in an up-and-down motion on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper. They were also known as serial dot matrix printers. Unlike typewriters or line printers that use a similar print mechanism, a dot matrix printer can print arbitrary patterns and not just specific characters.

<span class="mw-page-title-main">Inkjet printing</span> Type of computer printing

Inkjet printing is a type of computer printing that recreates a digital image by propelling droplets of ink onto paper and plastic substrates. Inkjet printers were the most commonly used type of printer in 2008, and range from small inexpensive consumer models to expensive professional machines. By 2019, laser printers outsold inkjet printers by nearly a 2:1 ratio, 9.6% vs 5.1% of all computer peripherals.

<span class="mw-page-title-main">Dye-sublimation printing</span> Digital printing technology with wide color range

Dye-sublimation printing is a term that covers several distinct digital computer printing techniques that involve using heat to transfer dye onto a substrate.

<span class="mw-page-title-main">Epson</span> Japanese multinational electronics company

Seiko Epson Corporation, commonly known as Epson, is a Japanese multinational electronics company and one of the world's largest manufacturers of printers and information- and imaging-related equipment. Headquartered in Suwa, Nagano, Japan, the company has numerous subsidiaries worldwide and manufactures inkjet, dot matrix, thermal and laser printers for consumer, business and industrial use, scanners, laptop and desktop computers, video projectors, watches, point of sale systems, robots and industrial automation equipment, semiconductor devices, crystal oscillators, sensing systems and other associated electronic components.

Gutenprint is a collection of free-software printer drivers for use with UNIX spooling systems, such as CUPS, LPR, and LPRng. These drivers provide printing services for Unix-like systems, RISC OS and Haiku.

An Iris printer is a large-format color inkjet printer designed for prepress proofing. It was introduced in 1985 by Iris Graphics, originally of Stoneham, Massachusetts, and is currently manufactured by the Graphic Communications Group of Eastman Kodak. It is also used in the fine art reproduction market as a final output digital printing press, as in Giclée.

<span class="mw-page-title-main">Kodak EasyShare</span> Brand of cameras, printers and other products

Kodak EasyShare was a sub-brand of Eastman Kodak Company products identifying a consumer photography system of digital cameras, snapshot thermal printers, snapshot thermal printer docks, all-in-one inkjet printers, accessories, camera docks, software, and online print services. The brand was introduced in 2001, and discontinued in 2012, when Kodak stopped manufacturing and selling all digital cameras and photo frames.

<span class="mw-page-title-main">Ink cartridge</span> Inkjet printer component

An ink cartridge or inkjet cartridge is the component of an inkjet printer that contains the ink to be deposited onto paper during printing. It consists of one or more ink reservoirs and can include electronic contacts and a chip to exchange information with the printer.

In economic literature, the term "aftermarket" refers to a secondary market for the goods and services that are 1) complementary or 2) related to its primary market goods. In many industries, the primary market consists of durable goods, whereas the aftermarket consists of consumable or non-durable products or services.

<span class="mw-page-title-main">Inkjet paper</span> Paper designed for use with inkjet printers

Inkjet paper is a special fine paper designed for inkjet printers, typically classified by its weight, brightness and smoothness, and sometimes by its opacity.

<span class="mw-page-title-main">Solid ink</span> Type of ink used in printing

Solid ink is a type of ink used in printing. Solid ink is a waxy, resin-based polymer that must be melted prior to usage, unlike conventional liquid inks. The technology is used most often in graphics and large-format printing environments where color vividness and cost efficiency are important.

Compatible ink is manufactured by third-party manufacturers and is designed to work in designated printers without infringing on patents of printer manufacturers. Compatible inks and toners may come in a variety of packaging including sealed plastic wraps or taped plastic wraps. Regardless of packaging, compatible products are generally priced lower than original equipment manufacturer (OEM) brand inks and toners.

Dynamic Cassette International (DCI) is an internationally recognised Boston, Lincolnshire, UK based ink cartridge and laser toner manufacturing company, producing products under the Jet Tec brand name. DCI is the sole UK manufacturer of compatible ink cartridges. DCI is notable for winning the Queen's Award for Enterprise: Innovation in 2004 and the Queen's Award for Export and being one of the biggest employers in Boston, employing over 300 staff at its 40,000 square metres factory. The company is currently Europe's largest manufacturer of compatible inkjet cartridges and has a turnover in excess of £20 million.

<span class="mw-page-title-main">Toner cartridge</span> Consumable component of a laser printer

A toner cartridge, also called laser toner, is the consumable component of a laser printer. Toner cartridges contain toner powder, a fine, dry mixture of plastic particles, carbon, and black or other coloring agents that make the actual image on the paper. The toner is transferred to paper via an electrostatically charged drum unit, and fused onto the paper by heated rollers during the printing process. It will not stain like ink cartridges, but it can get messy if handled improperly.

<span class="mw-page-title-main">Tonejet</span>

Tonejet is a drop-on-demand inkjet printing technology that enables the direct digital deposition of printing ink onto substrates. The Tonejet digital printing process is targeted at commercial and industrial applications.

<span class="mw-page-title-main">Remax World Expo</span>

The RemaxWorld Expo is an annual trade show comprising vendors from within the print consumables industry. The event began in 2007, resulting from a joint venture between the China Council for the Promotion of International Trade (CCPIT) and Recycling Times Media Corporation. Centered in Zhuhai, widely recognized as being the print consumables capital of the world, the exhibition currently takes place in the newly constructed Zhuhai International Convention & Exhibition Center. In 2015, the show accommodated 463 exhibitors and 13,938 visitors from 83 countries.

<span class="mw-page-title-main">Inkjet technology</span>

Inkjet technology originally was invented for depositing aqueous inks on paper in 'selective' positions based on the ink properties only. Inkjet nozzles and inks were designed together and the inkjet performance was based on a design. It was used as a data recorder in the early 1950s, later in the 1950s co-solvent-based inks in the publishing industry were seen for text and images, then solvent-based inks appeared in industrial marking on specialized surfaces and in the1990's phase change or hot-melt ink has become a popular with images and digital fabrication of electronic and mechanical devices, especially jewelry. Although the terms "jetting", "inkjet technology" and "inkjet printing", are commonly used interchangeably, inkjet printing usually refers to the publishing industry, used for printing graphical content, while industrial jetting usually refers to general purpose fabrication via material particle deposition.

Supertank printers are a type of continuous ink system (CISS) inkjet printer. Supertank printers differ from traditional inkjet printers in that the printhead is connected via a tube system that draws ink from large ink tanks built into the printer, which are filled and refilled via ink bottles, eliminating the need for ink cartridges. Cost-per-page (CPP) is significantly lower than traditional cartridges, as replacement ink bottles contain enough ink to print thousands of pages, and typically cost under $20.

References

  1. Gallagher, Sean. "HP's DRM sabotages off-brand printer ink cartridges with self-destruct date". Ars Technica. Retrieved 17 October 2017.
  2. "L100 & L200 High-Capacity Ink Tank Inkjet Printers". Seiko Epson Corp. October 2010. Archived from the original on 26 June 2015. Retrieved 27 December 2012.
  3. "Epson brings us the L-series, world's first genuine ink tank printer". Pinoy Tech Blog. Retrieved 8 February 2012.
  4. Dave Stevenson (2007-06-14). "Epson talks tough on compatible cartridges". Alphr. Retrieved 2017-10-17.