Find easy to understand definitions for terminology so Sharp product features and Sharp benefits are clear to you. Click below on the first letter of the word you want defined.

  • Data Compression

    A technique used to increase the speed of data transmission. Area of repetitive information (all white or all black) are transmitted in large blocks, while variable data must be sent in smaller blocks.

  • Department

    Used to categorize items sold for registration and reporting on an ECR/POS system, e.g., Appetizer, Beverage, Soups & Salads, Sandwich, Entree, Magazine, Shirts, Health & Beauty, Pharmacy, etc.

  • Department Group

    On an ECR/POS system, departments may be assigned to a department group for broader reporting purposes, e.g., Food, Non-Food, Merchandise, etc.

  • Developer

    The substance that carries the toner in the developer unit. Through the friction of the developer the toner particles are charged negative, which will cause attraction to the positively charged drum.

  • Development

    Process by which toner is applied to the image on the photoconductor drum.

  • Development System

    There are two types of development systems in use today in personal/desktop copiers:

    1. Dual-component using a magnetic brush (SHARP)

    2. Mono-component using a magnetic roller

  • Diffuse Lighting

    Lighting that appears evenly distributed and does not appear to be generated from any particular direction.

  • Diffuser

    A part, tool or device used to redirect or scatter the light from a source.

  • Digital Copier

    Uses an array of sensors that scan the image of a document and prepare it for digital processing.

  • Direct Lighting

    Usually refers to lighting that is emitted downward, distributing 90 to 100% of the light in the general direction of the surface to be illuminated.

  • Directional Lighting

    Lighting from a single direction, focused on a specific object or work surface.

  • Distinctive Ring Detection

    The fax machine has the ability to decipher 1 of the 4 ringing patterns which first must be activated by the telephone company. This advantage eliminates the cost of a second phone line dedicated for a fax machine. Consult your local phone company fo

  • Document Feeder

    A device which feeds documents into a facsimile machine without operator assistance.

  • Document Image Filing Cabinet

    Organizes your faxes and scanned images.

  • Document Memory

    The ability to store a document in memory for broadcasting, remote retrieval, confidential and out of paper reception. The number of pages that can be stored in memory at any one time depends on the unit and the density of the print on the document.

  • Dolby® Digital

    Dolby Digital is surround sound technology that delivers high-quality digital audio for up to 5.1 discrete channels (Left, Center, Right, Left Surround, Right Surround, and Low-Frequency Effects). The 5 speaker channels produce a directional and more realistic effect and the Low-Frequency Effects (LFE) channel (usually reproduced through a subwoofer) can often be felt as well as heard.

  • Dolby® Digital Plus

    Dolby Digital Plus is an enhancement to Dolby Digital. The audio coding technology supports up to 7.1 channels of surround sound and is backwards compatible with Dolby Digital.

  • Dolby® TrueHD

    Dolby TrueHD is “lossless” audio technology developed for high-definition disc-based media. A “lossless” audio format delivers audio that is bit-for-bit identical to the studio master. When the content is encoded in Dolby TrueHD, you will hear the original audio as it was recorded on a Dolby True HD equipped device. Dolby TrueHD is a mandatory codec in HD Audio today.

  • Drum

    The heart of a copier on which the image is formed. It consists of an aluminum core with multiple layers of light and charge sensitive material such as selenium, or an organic based material. Sharp only uses the environmentally friendly organic based.

  • DTS®

    DTS is a licensed technology included in many consumer electronic products. It provides high quality multi-channel or surround-sound digital audio. It is a mandatory audio format in the Blu-ray Disc™ standard and is also utilized in the digital delivery of movies and other forms of digital entertainment.

  • Dual Access

    This feature simultaneously performs two functions at once. It can scan one document into memory as it prints, receives, or transmits another.

  • Dual Page Copy

    Automatically images the two facing pages of a bound original.

  • DVD +/-R

    A DVD+/-R refers to a recordable, write-once DVD format.  Since content cannot be overwritten, DVD+/-R can be used to archive data and store video. Once “burned” or created, you will not be able to edit or modify the contents of the disc.  DVD+ and DVD- refer to the 2 different methods used for recording.  Check your operation manual to determine whether you devices supports "+" or "-" or both.

  • DVD +/-RW

    A DVD+/-RW refers to a recordable and re-writable DVD format. The re-writable feature allows you to edit the contents of the disc after the disc has been “burned” or created.  DVD+ and DVD- refer to the 2 different methods used for recording.  Check your operation manual to determine whether you devices supports "+" or "-" or both.

  • DVD Upscaling

    DVD upscaling or up-converting is a technique used by some DVD players to increase the resolution of the image/movie to improve picture clarity/details and enhance the overall viewing experience.

  • DVD Video

    A video format used to store digital video on a DVD disc.

  • DVI (Digital Video Interface)

    DVI can support 1080 lines of resolution. This digital connection solution pre-dates the standardization of HDMI™ inputs. While initially accepted as a PC video output, it can now be used to connect HD sources as well as a PC to HD displays. DVI to HDMI™ cables and connections are a great option for people who want connection flexibility. A separate audio connection is required for this connection option.

  • Dynamic UPC

    Also known as the UPC Learning Function, allows you to register a UPC that has not been programmed in the ECR/POS system PLU/UPC file.

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