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Alternating Current. AC power from the outlet.
Optional unit that is an add on to the unit (duplex unit, 500 sheet feeder, etc.).
Automatic Document Feeder. Device that moves paper into and out of the scanner.
Parts that are not manufactured by the OEM.
American National Standards Institute.
Authorized Return Service, pre-paid shipping label that is available to make sending in exchange items easier.
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This is referring to a base model of a printer that is not network capable, and only comes with the standard tray.
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A tray that holds a pre-selected, or set amount of paper. (also paper tray, cassette tray, drawer, tray 2, tray 3, etc.).
Charge Roll
Condition roller (hp), RTC (X), roller that conditions the surface of the image drum with static charge.
The saturation of an image.
Mechanical device used to engage or disengage a roller (also spring clutch).
Cyan, Magenta, Yellow, Black. Colored toners used in color laser and inkjets to create color prints.
Part of unit that has a life and needs to be replaced.
When purchasing items such as fusers you have the option of ordering on exchange. You will receive a discount for sending the part you are replacing to Parts Now. This item is referred to as a core.
Corona Wire
A charged wire in a laser printer that draws the toner off the drum onto the paper. It must be cleaned when the toner cartridge is replaced.
Cost per copy, cost per click - This is a billing method to charge a customer for the pages they produce over a period. This is typically monthly or quarterly and can include both monochrome and color prints.
Cost per impression, cost per image - This is a billing method to charge a customer for the pages they produce over a period. This is typically monthly or quarterly and can include both monochrome and color prints.
Cost per page, cost per print – This is a billing method to charge a customer for the pages they produce over a period. This is typically monthly or quarterly and can include both monochrome and color prints.
Customer Replaceable Unit
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Direct Current. DC voltages are created by the low voltage power supply in laser printers.
DC Controller
A circuit board that contains the logic needed to control the electrical and mechanical functions of the printer. This board is separate from the main logic board in most printers.
Data Collection Agent. This is what is deployed at the customer location to gather data from printers to send back to your Remote Monitoring Software.
“D” Roller
A pickup roller shaped like the letter “D” (also pickup roller).
A device used to direct or divert paper through one path or another (also diverter, flipper).
A program that allows the computer to talk the language of the printer, e.g. PCL or PostScript.
The third step in laser theory when toner is attached to the written area on the image drum.
A device used to direct or divert paper through one path or another (also diverter, flipper).
Dots Per Inch – DPI is used when referring to the resolution a laser printer can output.
Accessory that automatically flips the paper over for printing on two sides (also Duplex Unit and Duplexer).
Duty Cycle
Maximum number of pages recommended for the machine per month.
Drive Assembly
Unit that powers various paper feed and path components within a printer.
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All the parts of the printer that create the actual printed image. This includes all the parts of the printer except the formatter and outside covers.
Engine Control
The logic board that controls the electrical and mechanical functions of the printer.
Envelope Feeder
Accessory for feeding large quantities of envelopes into unit.
Electrostatic Transfer/Transport Belt (hp). Belt that moves paper past 4 toner cartridges to transfer image onto paper.
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Face-Down Tray
Delivery bin that receives paper with the print side of the page facing down. Usually on the top of the printer.
Face-Up Tray
Delivery bin that receives paper with the print side of the page facing up.
Often a muffin fan (type) used to move air out of, or into the unit. Mostly for cooling.
Feed Roller
A roller that is positioned after the pickup roller and which works with a separation roller. Responsible for feeding paper into the printer after paper pickup. Top roller of feed/separation pair of rollers. (also feed and separation rollers, or feed/separation rollers).
Feed Tire
Paper feed component for Lexmark printers. A circular piece of rubber that fits around a roller. The roller may or may not be included depending on the model.
A program that is embedded into a chip and is used to make the printer go through its steps to power up, run internal tests and communicate with the driver to produce print jobs.
Formatter PCA
A circuit board that controls the logic, receives the data from the computer, and breaks it down into a printable format before sending it to the DC controller or engine controller. (also main logic board or RIP boardm System board, Logic Controller).
Field Replaceable Unit.
Assembly that fuses toner into the fibers of the paper by using heat and pressure over a period of time. (also fuser unit, fusing assembly)
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The range of colors a device is able to use.
Flatbed scanner. Glass area of flatbed scanner where you put the media you want copied.
The direction of the fibers in a sheet of paper. Fibers in long grain papers run parallel to the long dimension of the cut sheet. In short grain papers they run parallel with the short side.
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Hard Drive
- Device that allows non-volatile data storage. Usually an accessory on a printer, but standard on MFPs.
High Capacity Feeder. Feeds large quantities of paper into the unit, 1500 - 2000 or more.
The computer that communicates with the printer sending jobs.
Home Position
The position where a mechanical part of the printer is at its natural, resting or starting state. This would be opposite of an active state. For instance, a “D” roller in the home position is with the flat side pointing toward the paper. The active state is when the “D” roller rotates to pick up paper.
High Voltage Power Supply. Using DC voltage from the DC controller, the HVPS provides high voltage charges for the imaging.
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Idler Roller
A roller used to pinch paper between another roller that is being driven to move paper through the printer.
Image Drum
An aluminum drum with a light sensitive coating that changes its resistive properties when exposed to light.
International Organization for Standardization
Image Transfer Belt (hp). Belt that collects 4 layers of colored toners before transferring it onto paper.
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JetDirect Card
AKA NIC card – a card with an Ethernet port to connect the printer to a network.
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Light used in scanner whether under the glass or in the ADF.
Laser Scanner
A combination of pulsating laser, lenses and a multi-sided spinning mirror that scans a digitized image onto the image drum.
Liquid Crystal Display. This is the type of display used by printers with a display panel.
Leaf Spring
Spring action levers that work with a printed-circuit board to auto-sense paper size loaded in a tray (auto-size finger(s)).
A combination of pulsating laser, lenses and a multi-sided spinning mirror that scans a digitized image onto the image drum.
Low Pressure Roller
- Roller in the fuser that provides pressure needed to fuser toner into the paper (backup roller, LPR, spongey fuser roller and orange roller).
Less than truckload for shipping fuser cores back to Parts Now
Ability to reflect more or less light.
Low Voltage Power Supply. Converts AC to DC which the DC Controller can use to run the printer.
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Magnetic Ink
Usually printer's ink to which iron oxide particles have been added. In regard to MICR laser printing, it refers to toner with magnetic characteristics.
Output accessory with multiple bins to sort or collate jobs.
Maintenance Kit
Kit of mechanical parts that wear out around the same life (hp, L & Usage Kit (X, IBM)).
Memory – Memory stick
Each printer takes different memory. Please refer to references.
RAM – memory that can be added or expanded on a unit
SIMM – Single Inline Memory Module
DIMM – Dual Inline Memory Module
DDR – Double Data Rate
DDR2 – Double Date Rate version 2
Manual Feed Tray
The tray used to feed special or uncommonly used media, such as letterhead paper, labels, or transparencies. (also MF tray, MP tray, Tray 1)
Multi Function Printer. A printer similar to a digital copier and which can perform multiple functions, such as printing, scanning, copying, faxing and e-mailing.
Acronym for Magnetic Ink Character Recognition. It consists of magnetic ink printed characters that can be recognized by high-speed magnetic and/or optical recognition equipment.
Multiple Original Copies (hp). Send one print.
MP Tray
Multi-purpose tray. Same as manual feed tray, except the MP tray can be used as a standard cassette tray, manual feed tray or specialty paper feed tray. Typically used when printing on small or odd sized media, envelopes, transparencies, labels or any media that needs a straight-through paper path.
Managed Print Solutions, Managed Print Services – A program that dealers offer to help remove many of the challenges of managing an imaging output device environment for their customers. This grants visibility into pages produced, supply levels and general usage patterns.
When more than one sheet of paper is picked up and fed into the printer.
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NIC Card
Network Card. Card in printer that communicates with the network. Comes in different network types (i.e. Ethernet, Token Ring). Can also be external:
• MIO or Modular Input Output (hp for LJ 4, 5 & 6 models)
• EIO or Enchanced Input Output (hp for LJ 1000 – 9000 models)
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Original Equipment Manufacturer. Examples of OEMs are HP and Lexmark.
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Paper Dust
Particles of loose paper fibers and other residues which naturally accumulate inside printers. Controlling paper dust is a serious issue for Laser Printers in terms of print quality and printer performance.
Paper Pick-up Assembly (PUA) or Paper Path Assembly (PPA)
Printer part that moves paper from a tray(s) to the engine.
Type of connection directly to a computer or external network box (older).
• Parallel – 25 pin connector
• Mini Parallel – 25 pin connector with smaller connector on printer side
Printed Circuit Assembly. (also PCB or PWB).
Printer Control Language. PCL is a common type of driver.
Photo Sensor
A sensor which uses a light source, light detector, and a flag to send a signal to the printer logic as to the flag’s position. Used to detect paper movement in the paper path.
Pickup Roller
A roller that moves paper from the tray into the printer(also Pick Roll (L), Nudger Roll (X), D-Roller).
Printer Job Language. For printers that do not have displays or a toolbox, PJL commands are used to access service mode.
Purchase order – A purchase order or PO is a commercial document and first official offer issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services. It is used to control the purchasing of products and services from external suppliers.
Power Supply
Unit which supplies power (volts and amps) to different parts of the printer. Can be an AC power supply or DC power supply, or both. (also LVPS, PS).
Page Per Minute.
PostScript®. A communication language that utilizes vector graphics. More commonly used for CMYK color configurations and Apple computers. Also an abbreviation for power supply.
See PCA (Printed Wire Board, older term)
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Raster Image
An image created by scanned lines.
Item that has been remanufactured for re-use and is typically available at a discounted rate compared to an OEM (New from the Manufacturer) part.
The gap between the leading edge of the paper and the start of the print on the page.
Registration Assembly
A device used to help straighten the paper.
Red, Green, Blue. Colors used to create colors on your monitor.
Remote Monitoring Software. This is the actual software that you will access to view your device information. Common versions are Printfleet, FM Audit, Print Tracker, Print Audit.
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Device that scans an image so it can be reproduced (copied) via the printer.
Service Engineer
A material that conducts electricity, but with some resistance.
Separation Claws
Claws which ride on the upper fuser roller to separate paper from the roller. Sometimes, on some high production printers, these claws are included on the fuser’s lower pressure roller. (also sep claws, pick fingers, separation pawls).
Separation Pad
Cork or rubber pad that delays a 2nd sheet from feeding at pickup (also Sep Pad and Retard Pad (X).
Type of connection directly to a computer or external network box (uncommon).
Service Manual
Manual produced by the OEM as a reference for the service tech. Not for the end user. Often contains part numbers, error codes and other info. Varies depending on manufacturer.
• HP – Parts, service (error codes) and user guide in the book.
• Lexmark – Parts and service. User guide is a separate book.
• Xerox – Parts and service. User guide is a separate book.
Servo Motor
A stepper motor with a photo sensor feedback mechansim so it knows the position of the motor.
Sheet Feeder
Optional accessory that feeds paper into the unit.
Single sided printing.
Electrical device used either with a clutch to engage rollers or as a device to toggle a lever or diverter.
Output accessory that collects larger output jobs than the standard bin.
Accessory sometimes built into stacker or mail box for stapling. Can be solo.
Stepper Motor
A motor that uses an armature and pulses to magnets to magnets that allow the armature to turn by steps and thus vary the speed. Can also run backward.
Stick (X)
Xerox solid ink sticks (C, M, Y or K).
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The emergency shut off switch in a fuser. This safety device is used to stop power flow when the temperature of the fuser exceeds the thermoswitch’s temperature limit.
The thermistor monitors the temperature of the upper fuser roller, which lets the DC controller know if the fuser lamp needs to be turned on for more heat or off to cool down.
A finely ground substance that usually consists of black plastic resin bonded with small pieces of iron oxide. Bonds with paper to recreate an image sent to the printer by the computer.
Toner Cartridge
Consumable unit that contains image drum, charge roller, toner, developer drum and waste toner collection - varies from manufacturer to manufacturer.
Toner, Chemical
Toner grown as opposed to ground to create smaller more consistent particle sizes.
Toner, Mono-Component
Toner consisting of plastic resin and iron oxide. Often created by grinding into small particle sizes.
A software program included with the drivers CD-ROM which allows the end user to access and change menu settings in the printer. Printers that have a toolbox available often do not have display, leaving the toolbox as the only access to menu options.
Transfer Roller
Transfer Roll (L), BTR (X) roller that attracts toner off image drum and down onto the paper.
The fourth step in laser theory. In the transferring step toner moves from the image drum to the paper.
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Universal Serial Bus. Cable connection to printer, uses newer, faster style of serial port.
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Value Added Reseller.
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Waste Toner
Left over toner from print job that may have impurities and should not be mixed with good toner.
The second step in laser theory, where the laser in-conjunction with the photosensitive surface of the image drum, writes an image into the static charge on the surface of the image drum.
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