Actions Printing System IntroductionThe design details of the print cartridge/s used in HP LaserJet printers differs between printer models to reflect the different customer needs being addressed by different printer models. For example, a LaserJet monochrome printer can have a different cartridge design than an HP color LaserJet printer. Color printing is more complex than monochrome printing and the cartridges used in color printing can differ significantly between different HP color printer models. These design differences are driven by HP's goal of delivering the best value, printing experience and outstanding print quality for a variety of customers who have different printing needs. HP designs its LaserJet printer systems to deliver outstanding value and print quality over the life of the printer. In order to accomplish this, the LaserJet printer system is made up of the printer itself and the HP LaserJet print cartridge/s. These print cartridges (which are sometimes called 'toner cartridges') contain far more than toner. These print cartridges are complex multipart systems, one part of which is toner. Print Cartridge OverviewAll LaserJet cartridges contain a number of mechanical parts in addition to the toner. These components—such as developer, photo conductor (PC) and cleaning blade—wear during the printing process as the toner is used. While these components are designed to be durable, different printing styles can cause different parts within the cartridge to wear at different rates. For example, in some laser printers, the printing of mostly low coverage pages might result in other cartridge components wearing out before the toner is depleted. In another case, printing mostly on narrow paper like envelopes can cause the PC to be the first component to reach end of life. These worn components will ultimately lead to print quality degradation just as toner depletion can lead to print quality degradation. In addition, the toner itself is a complex chemical formulation designed specifically to work with the other printer system components to deliver consistent high print quality. Because it is physically impossible to extract all of the toner in a LaserJet print cartridge for printing purposes, some residual toner will always remain in the cartridge, but whether this toner is useable and the amount of this residual toner will differ depending upon customer printing styles and cartridge design. Because toner is subject to physical movement (stirring) during printing, the toner can actually become 'worn' during the printing process to an extent that it can become unusable. This wear can limit the ability of the toner to develop the image correctly and cause print defects. Continue printing with the current cartridge until redistributing the toner no longer yields acceptable print quality. To redistribute the toner, remove the toner cartridge from the printer and gently rock the cartridge back and forth about its horizontal axis. For graphical representation, see cartridge replacement instructions. Reinsert the toner cartridge into the printer and close the cover. Factors Affecting Print Cartridge YieldOther factors can also impact print cartridge yield. For example:
In HP LaserJet printer systems, all supplies are required to be installed in the printer for the printer to function. This minimizes the risk of paper or other media being wasted during the printing process. Comparing HP Print Cartridge YieldsThe ISO/IEC yield methodologies allow the customer to compare the declared yield of cartridges from many different manufacturers. The printing style of the customer (type of documents printed, number of color pages, size of print jobs, image density, simplex v. duplex, etc.) will have a substantial impact on the cartridge's actual page yield. Accordingly, actual yield might vary considerably from the declared yield and HP cannot guarantee that a customer will always achieve the declared page yield. Many customers will find that their print cartridge provides more pages than this declared yield and other customers will find that their printing style results in the cartridge providing less pages. For more detail on LaserJet page yields got to: http://www8.hp.com/h71041/learn-about-supplies/us/en/toner.html United Kingdom hp-detect-load-my-device-portletActions When printing on a laser printer which are streaks usually caused by?Streaking is usually caused by a worn out drum unit or spent toner cartridge. Drum units are a consumable and only need to be replaced after the use of 3 or 4 toners. Not all printers use a separate toner and drum unit.
Which printer problems may be caused by depleted toner?Here are some possible solutions to print quality problems: Blurring, Smears, and Streaks - These issues can be caused by a defective toner cartridge or a toner cartridge not installed correctly. Here's how to fix toner streaks.
How do you fix a printer toner?The most likely fix for this problem is to take the cartridge out. If it's empty, replace it with a new cartridge. If it still has toner left inside, install it back in the printer, taking care to insert the cartridge properly. Always turn your printer off before attempting to change a cartridge.
What are the most common causes of printer not printing?Most printers will stop working when they're out of paper, ink or toner, or if the unit detects an issue with the ink or toner cartridge. When this occurs, you might receive an error message or notice blinking green or amber lights on your printer.
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