HP L25500 manual Led

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The International Color Consortium, a group of companies that have agreed on a common standard for color profiles.

Ink density

The relative amount of ink that is deposited on the substrate per unit of area.

IP address

A unique identifier that identifies a particular node on a TCP/IP network. It consists of four integers separated by dots.

LED

Light-Emitting Diode: a semiconductor device that emits light when electrically stimulated.

Minimum drying power

The minimum heat applied in the printing zone so that the substrate does not cool too much in lightly-inked areas. Low minimum power may cause print quality defects; high minimum power may damage the substrate, especially with a high number of passes and in blank or lightly-inked areas.

Nozzle

One of many tiny holes in a printhead through which ink is deposited onto the substrate.

Passes

The number of print passes specifies how many times the printheads will print on the same area of substrate. A higher number of passes tends to improve print quality and printhead health, but reduces the speed of printing.

Platen

The flat surface within the printer over which the substrate passes while it is being printed on.

Printhead

A removable printer component that takes ink of one or more colors from the corresponding ink cartridge(s) and deposits it on the substrate, through a cluster of nozzles.

Spindle

A rod that supports a roll of substrate while it is being used for printing.

Substrate

A thin, flat material designed to be printed on, made of paper or other materials.

Substrate advance compensation

A slight adjustment to the amount of substrate advance between print passes, to compensate for the characteristics of different substrate types. The printer normally performs this adjustment automatically, but may need to be recalibrated for substrates not supported by HP, or for an unusual ambient temperature or humidity. Incorrect substrate advance compensation may cause banding with fewer than 8 passes, or graininess with 8 passes or more.

Unidirectional

Unidirectional printing means that the printheads print while moving in only one direction, which may improve print quality. In general, increasing the number of passes is a better way of improving print quality.

Vacuum pressure

The substrate is held flat against the platen by vacuum suction. Too much or too little suction may cause print quality defects. Too little suction may also cause a substrate jam or damage the printheads.

ENWW

Glossary 67

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Contents HP Designjet L25500 Printer series Trademarks Legal noticesTable of contents Printer specifications AccessoriesElectrical shock hazard Safety precautionsGeneral safety guidelines IntroductionMechanical hazard Heat hazardFire hazard Ink handling Heavy substrate hazardLabel Explanation Printers main featuresFront view 60-in printer Printers main componentsRear view 60-in printer Front panel Take-up reel motorEmbedded Web Server Support tab Setup tabMain tab Connection type Speed Maximum cable length Other factors Connectivity and software instructionsConnection method Connect to a networkTurn the printer on and off Basic setup optionsPrinter setup options Change the language of the front panel Restart the printerEmbedded Web Server setup options Change the language of the Embedded Web Server Use substrate Handle the substrateOverview Substrate family Substrate types Load a roll onto the spindleSupported substrate families Load a roll onto the spindle Handle the substrate Load a roll into the printer Substrate Change loaded substrate Handle the substrate Unload a roll from the printer Normal procedure roll attached to spindleExceptional procedure roll detached from spindle Load a roll onto the take-up reel Use the take-up reelHandle the substrate Handle the substrate Handle the substrate Enww Handle the substrate Unload a roll from the take-up reel Handle the substrate Store the substrate View information about the substrateSummary Download substrate presetsAdd a new substrate type Substrate family Select printer settings and color profileSubstrate family Description HP Photorealistic 100 Setting Description If too low If too highPaper-Solvent Substrate at the beginning Vinyl Select the number of passesKey Check the ink quantity Coalescence, grain Faster printing Color calibrationColor profiles Ink cartridges Handle the ink systemInk system components Printheads Ink funnel Printhead cleaning cartridgePrinthead cleaning container Replace an ink cartridge Ink system tipsWork with ink system components Remove an ink cartridge Work with ink system components Insert an ink cartridge Replace a printhead Remove a printhead Handle the ink system Insert a printhead Handle the ink system Handle the ink system Remove the printhead cleaning cartridge Replace the printhead cleaning kitHandle the ink system Insert the printhead cleaning cartridge Replace the ink funnel Handle the ink system Cartridge Order ink suppliesPrinthead Printhead cleanerChange margins Print optionsPrinter states Request the printers internal prints Name AccessoriesOrder accessories Minimum Maximum Printer specificationsFunctional specifications Ecological specifications Physical specificationsMemory specifications Power specificationsAcoustic specifications Environmental specificationsAirflow GlossaryLED Order IndexMargins Enww
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