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(graphic arts)


Dots per inch.

A measure of resolution for printers, scanners and displays.

Laser printers typically reach 300 DPI, though 600 DPI is becoming more common. Commercial typesetters are usually around 1200 DPI.


(1) See deep packet inspection.

(2) (Dots Per Inch) The measurement of the resolution of a printer. As the dpi rate doubles, the number of dots within a square inch is quadrupled. Thus, while 100 dpi produces 10,000 dots per square inch, 200 dpi produces 40,000 (see table below). This applies to screens as well, which are measured in pixels per inch (ppi).

Screens Are Getting Denser
Increasingly, screen resolutions are equaling the print density of printers, which is why it is easy to read text on smartphones. For example, a smartphone screen at 300 pixels per inch (ppi) means 300 red, 300 green and 300 blue subpixels per inch (900 dpi). The total dots per square inch (900 squared) is 810,000, which is denser than a 600 dpi printer (see table below). See ppi, resolution and E Ink.

     Dots PerDPI        Square Inch

      100           10,000

      200           40,000

      300           90,000

      600          360,000

      900          810,000

     1200        1,440,000
References in periodicals archive ?
While evolving DPI technology and combination therapeutic products continue to have a significant impact on the treatment of upper respiratory diseases and conditions, dry powder inhalers are making strides in applications requiring the systemic delivery of both small and large molecule and engineered macromolecules for the treatment of a range of pathologies.
Average Percentage of Steps Completed Correctly By Nurses Demonstrating Delivery Devices Metered-dose inhaler (MDI) (7 steps) 77% MDI and spacer (6 steps) 58% MDI, spacer, and mask (6 steps) 45% Nebulizer (14 steps) 38% Dry powder inhaler (10 steps) 35% Note: Data based on a study group of 50 hospice nurses.
In December 2001, the FDA upgraded the labeling of the budesonide dry powder inhaler (Pulmicort Turbohaler) to pregnancy category B, based on Swedish birth registry data from 2,014 infants that showed no increased risk for congenital malformations (Obstet.
The two companies have agreed an exclusive licence that will allow Otsuka to produce the dry powder inhaler version for sale in both Japan and Spain.
developed a novel multi-unit dose dry powder inhaler for the delivery of drugs
Furthermore, to ensure that most of the drug emitted from a dry powder inhaler reaches the lungs, it is necessary for the patient to inhale deep and fast enough.
a generic version of GlaxoSmithKline s Seretide Accuhaler product Fluticasone / Salmeterol dry powder inhaler in Europe upon commercialisation.
The product, a dry powder inhaler used twice a day, will be marketed as Tudorza Pressair by Forest Pharmaceuticals, a subsidiary of Forest Laboratories.
The report provides analysis and review of the key clinical trials being carried out globally and across key Inhalers market categories - Dry Powder Inhaler Devices,Metered Dose Inhaler Devices
through an affiliate, has exercised an option to extend its license to the MicroDose Dry Powder Inhaler (DPI) technology to an additional investigational compound.