HP L25500 manual Glossary, Airflow

Page 70

Glossary

Airflow

Air is blown through the printing zone to speed up the drying process. Too much or too little airflow may cause print quality defects.

Back tension

The backwards tension applied to the substrate by the input spindle, which must be constant across the width of the substrate. Too much or too little tension may cause substrate deformation and print quality defects.

Bidirectional

Bidirectional printing means that the printheads print while moving in both directions. This increases the speed of printing but may reduce print quality.

Bleeding

A print-quality defect that occurs when the ink spreads on the substrate across areas of different colors.

Coalescence

A print-quality defect that occurs when the ink spreads on the substrate within an area of the same color.

Cockle

A substrate condition in which it is not lying perfectly flat, but rises and falls slightly in shallow waves.

Color accuracy

The ability to print colors that match the original image as closely as possible, given the fact that all devices have a limited color gamut and might not be able to match certain colors precisely.

Color consistency

The ability to print the same colors in a particular print job, from print to print and from printer to printer.

Curing

The substrate is heated in the curing zone to coalesce the latex, creating a polymeric film which acts as a protective layer, while at the same time removing the remaining co-solvents from the print. Curing is vital to ensure the durability of the printed images. Too high or too low a curing temperature may cause print quality defects.

Cutter

A printer component that slides back and forth across the platen to cut the substrate.

Drying

The substrate is heated in the printing zone to dry the ink and fix the image to the substrate. Too high or too low a drying temperature may cause print quality defects.

Firmware

Software that controls your printer's functionality and is stored semi-permanently in the printer (it can be updated).

Gamut

The range of colors and density values reproducible on an output device, such as a printer or monitor.

I/O

Input/Output: this term describes the passing of data between one device and another.

ICC

66 Glossary

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Contents HP Designjet L25500 Printer series Legal notices TrademarksTable of contents Accessories Printer specificationsIntroduction Safety precautionsGeneral safety guidelines Electrical shock hazardFire hazard Heat hazardMechanical hazard Heavy substrate hazard Ink handlingPrinters main features Label ExplanationPrinters main components Front view 60-in printerRear view 60-in printer Take-up reel motor Front panelEmbedded Web Server Main tab Setup tabSupport tab Connect to a network Connectivity and software instructionsConnection method Connection type Speed Maximum cable length Other factorsPrinter setup options Basic setup optionsTurn the printer on and off Restart the printer Change the language of the front panelEmbedded Web Server setup options Change the language of the Embedded Web Server Overview Handle the substrateUse substrate Supported substrate families Load a roll onto the spindleSubstrate family Substrate types Load a roll onto the spindle Handle the substrate Load a roll into the printer Substrate Change loaded substrate Handle the substrate Exceptional procedure roll detached from spindle Normal procedure roll attached to spindleUnload a roll from the printer Use the take-up reel Load a roll onto 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 View information about the substrate Store the substrateAdd a new substrate type Download substrate presetsSummary Substrate family Description Select printer settings and color profileSubstrate family Paper-Solvent Setting Description If too low If too highHP Photorealistic 100 Substrate at the beginning Key Select the number of passesVinyl Check the ink quantity Coalescence, grain Color profiles Color calibrationFaster printing Ink system components Handle the ink systemInk cartridges Printheads Printhead cleaning container Printhead cleaning cartridgeInk funnel Work with ink system components Ink system tipsReplace an ink cartridge 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 Replace the printhead cleaning kit Remove the printhead cleaning cartridgeHandle the ink system Insert the printhead cleaning cartridge Replace the ink funnel Handle the ink system Order ink supplies CartridgePrinthead cleaner PrintheadPrinter states Print optionsChange margins Request the printers internal prints Order accessories AccessoriesName Functional specifications Printer specificationsMinimum Maximum Power specifications Physical specificationsMemory specifications Ecological specificationsEnvironmental specifications Acoustic specificationsGlossary AirflowLED Margins IndexOrder Enww