HP LaserJet 6L

How to Identify and Fix Common Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

Adjust the application settings and the printer settings to the highest possible resolution. Both of these features can typically be accessed from the “Print” menu. Dpi settings can range between 72 dpi and 2400 dpi. Choose the highest dpi setting available for best results when using a laser printer.
The printer is either low in toner, the density is set too low, or the Economode may be turned on. Remove the toner cartridge and shake it. This will redistribute the toner and often will temporarily solve the problem. However, this usually indicates it is time to install a new cartridge.
Printers may produce poor quality printing if they are exposed to too much heat. Don`t place your printers in a high-temperature area or near other devices that produce excess heat. In addition, keep them away from windows, where heat and humidity can be high.
Dot-matrix printer uses continuous paper rather than requiring individual sheets. ​Dot-matrix printers do not produce high quality.
To resolve most print quality issues, use genuine HP cartridges, and in some cases, you might need to allow the printer to complete the automatic servicing routine. Check the paper and print settings to make sure that they are correct for the print job, and clean the cartridges and printhead.
Resolution. The standard resolution in most laser printers today is 600 dots per inch (dpi). This resolution is sufficient for normal everyday printing, including small desktop publishing jobs. A high-end production printer might have a resolution of 2400 dpi.
Laser Printers

The laser printer was developed by Xerox in the 1960s when the idea of using a laser to draw images onto a copier drum was first considered. Laser printers are still widely used in large offices as they are traditionally more efficient than inkjet printers.

Laser printers produce higher overall print quality when taking into account both text and images. However, inkjet printers specialize in color image printing and produce high-quality color photos. When it comes to crisp, clean black and white text and color images, laser printers are unmatched.
Laser printers provide superb print quality with crisp text, fast speeds, and economical printing for both home and office working. One of the big advantages of laser printers is that they don`t require ink. Instead, laser printers use toner cartridges which can print thousands of pages before needing to be replaced.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

evenly spaced horizontal lines on hp laserjet III printout
ANSWER : The lines would be a toner cartridge problem. Which paper tray? The MF tray or the optional paper cassette?

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HP LaserJet 6L

Hp laserjet 2420dn
ANSWER : I would suspect the fixing film has wear. You can prove the theory by doing a half-stop test. This stops the print before it enters the fixing film assembly. Load paper in the drop down MF tray in the front. Send a print job and when the tail end starts to enter, open the cartridge lid on top to stop it. Then remove the toner cartridge and look at the paper. If you see the marks, it is from the toner cartridge. If you don’t, it would be coming from the fixing film since the paper hasn’t entered it.

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HP LaserJet 6L

HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr

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HP LaserJet 6L

HP Laserjet 4250 – RFU LOAD ERROR
ANSWER : Italiano:

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HP LaserJet 6L

How to copy a card slot in HP laserjet 4250N
ANSWER : None that I know of, using a computer is likely your best option but I never attempted it.

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HP LaserJet 6L

HP Laserjet M3035xs RFU Upgrade
ANSWER : There’s no way.

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HP LaserJet 6L

HP Laserjet 4200 50.2 Fuser error
ANSWER : if you are using a good fuser the next part to try would be low voltage power supply

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HP LaserJet 6L

HP LaserJet 2200D won't print configuration page
ANSWER : Find someone with a HP LaserJet 4100 and you can configure the card to the IP you want:

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HP LaserJet 6L