Digital Copier Uses an array of sensors that scans a document into an image processor which prepares and manipulates it for printing. (See Analog Copier)
Document Feeder A device which feeds documents into a fax machine without operator assistance.
Dots Per Inch (DPI)
Dpi is an abbreviation for dots per inch. A measurement of print
resolution, dpi indicates how many individual dots a device can create
on a page per square inch of area. Dpi is typically listed as
horizontal resolution by vertical resolution; the higher the dpi, the
better the resolution.
Drivers This software allows your computer to communicate with your printer to produce quality, accurate prints.
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 material in the Z-series of copiers.
Duty Cycle This is the number of pages that a printer is designed to handle per month.
Energy Save Mode
An energy conserving feature where after copying and a preset time period, the copier automatically goes into a standby mode in which partial fusing heat is maintained so that a full warm-up period is not necessary for the next copy job.
Enlargement Ability to increase the size of the image of the original on a photocopy.
Some copiers use fiber optics - layers of Lucite fibers sandwiched together which transmit light to the drum to form an image. Fiber optics are less expensive and easier to manufacture than optical lenses, and they allow for the production of smaller-sized copiers.
First Copy Time Time required from when the start key is pressed to the time the first copy arrives at the exit tray.
Fusing Process used to permanently affix the toner particles to the copy paper. Most commonly, heat and pressure applied by a heat lamp inside two rollers.
Allows the user to copy on to different paper stock, without changing paper cassettes or trays. Also used for two-sided copying.
Maximum Copy Size
Largest original that can be placed on the glass and copied.
Greatest number of copies that the copier can be programmed to produce, from one original.
Multi-Copy Speed Number of copies per minute produced from one original in a continuous run after the first copy exits. This is also the maximum copy output speed of the machine.
Paper Capacity Defines how much paper any given paper tray can handle.
This refers to the number of pages that a printer can store prior to
printing. It also usually details how this paper is handled (document
feeder, tray, automatic document feeder, etc.).
Pages per minute, usually abbreviated as PPM. A measurement of printer
speed, indicating how many finished pages a printer can produce in 60
seconds. PPM speeds are typically listed for both monochrome only and
Resolution refers to the individual number of samples that are taken in
the space of one inch. This is commonly referred to as dpi (dots
per inch) or spi (samples per inch). In fax, the resolution is expressed in the number of lines per inch scanned and recorded, such as normal, fine and superfine.
Serial Interface Can transfer only one bit of information in one direction at a time but can transmit data over greater distances.
Substitute Reception Also called paper-out reception to memory, this feature allows documents to be automatically received into memory when the unit runs out of paper. Some models also allow documents to be received into memory when other supplies, such as ink or toner, are depleted.
Universal Serial Bus. An input/output (I/O) bus capable of data
transfer at 12 megabits (1.5 megabytes) used for connecting peripherals
to a microprocessor. Typically, each device connected to a computer
uses its own port. USB can connect up to 127 peripherals through a
single port by daisy-chaining the peripherals together. USB devices may
be hot plugged, which means that power does not have to be turned off
to connect or disconnect a peripheral. It is expected that USB will
become a primary means of connection in IBM-compatible PCs. Most major
hardware, software, and telecommunications providers support USB.