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HP LaserJet 4000, 4050, and 4100 Series Printers - Cleaning and Maintaining the Printer
This document explains basic printer maintenance.
If the printer has print quality defects that are not resolved after using the information in this document then CLICK HERE to view and download the HP LaserJet 4100 User Guide. It contains more comprehensive troubleshooting information.
Managing the print cartridge
HP policy on non-HP print cartridges
The Hewlett-Packard Company cannot recommend use of non-HP print cartridges, either new or remanufactured. Because they are not HP products, HP cannot influence their design or control their quality.
To install a new HP print cartridge and recycle the used cartridge, follow the instructions included in the print cartridge box.
print cartridge storage
Leave the print cartridge in its package until ready to use.
CAUTION: To prevent damage to the print cartridge, do not expose it to light for more than a few minutes.
print cartridge life expectancy
The life of the print cartridge depends on the amount of toner that print jobs require. When printing text at five-percent coverage, an HP print cartridge lasts an average of 10,000 or 6,000 pages, depending on which print cartridge is installed (A typical business letter is about five-percent coverage). This assumes that Toner density = 3 and Economode = off is set in the Print Quality menu on the printer’s control panel (These are the default settings).
Continue printing when toner is low
When toner is low, the printer’s control panel displays the message, Toner low .
The printer will continue to display, Toner low , until the print cartridge is replaced.
Redistributing the toner
Redistribute the toner when it is low, faded or when light areas appear on a printed page. Temporarily improve print quality by redistributing the toner. The following procedure might allow a current print job to finish printing before replacing the print cartridge.
Cleaning the printer
To maintain print quality, follow the cleaning procedure below every time the print cartridge is changed or whenever print quality problems occur. As much as possible, keep the printer free from dust and debris.
Figure 1: Avoid touching the transfer roller.
Cleaning spilled toner
Defective print cartridges can develop leaks. Also, after a paper jam has occurred, there may be some toner remaining on the rollers and guides inside the printer. The pages that print immediately after the jam may pick up this toner.
Clean spilled toner with a cloth dampened with cold water.
Using the printer cleaning page
If toner specks appear on the front or backsides of print jobs, follow the procedure below.
From the printer’s control panel, do the following:
To ensure good print quality with certain types of paper, use the cleaning page procedure every time the print cartridge is replaced. If the cleaning page procedure is frequently needed, try a different type of paper.