HP Color LaserJet 2550
How to Identify and Fix Common Problems ?
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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.
Dots are typically caused by foreign material inside the machine (for example paper dust, glue from labels or envelopes, paper clips, staples) sticking to or damaging the surface of the drum. Toner builds up on or sticks to these areas on the drum and creates black dots on the printed pages.
Print a cleaning page to remove dust and excess toner from the paper path if you are having any of the following problems: Specks of toner are on the printed pages. Toner is smearing on the printed pages.
The streaks or lines might be caused due to low ink levels in one or both ink cartridges. Check the ink levels using the HP Toolbox to determine if the ink cartridges are low on ink and need to be replaced. note: Ink level warnings and indicators provide estimates for planning purposes only.
Streaks and unwanted lines could mean that the printer heads are out of alignment. There`s an alignment tool in the printer`s control panel. If that`s not the issue then the printer is dirty. Printer ink stripes may appear along the edges of the paper, which means there`s ink on the rollers and other parts.
If you notice white or dark lines in your prints (also called banding), try these solutions before you reprint: Run a nozzle check to see if any of the print head nozzles are clogged. Then clean the print head, if necessary. Make sure the paper type setting matches the type of paper you loaded.
For cleaning, HP recommends using HP Equipment Cleaning Wipes, but you can use an HP-approved lint-free wipe and deionized or distilled water. Note: If dark spots appear on back side of prints, clean drum screen. Note: If minilab prints more than 2000 prints each day, clean drum screen up to twice daily.
When your printer leaves black lines, the lines indicate that there are excess toner powders on the rollers or transfer belt within the printer. As the paper is moved along by the rollers and transfer belt, any excess powder left on them can result in lines being left on the paper.
HP Deskjet printers have a built-in process that cleans dried ink from inside the cartridges, which may eliminate missing lines or dots on your printouts. If you notice ink streaks after printing, you`ll need to manually clean the cartridges to remove any external debris.
If your PC or the LCD screen on your printer is telling you that your ink cartridges are full but no ink is passing through to the paper, then it`s most likely that you are dealing with a clogged printhead. Blurry documents and images that appear faded are also signs that it`s time to remove the excess ink.
For cleaning, HP recommends using HP Equipment Cleaning Wipes, but you can use an HP-approved lint-free wipe and deionized or distilled water. Note: If dark spots appear on back side of prints, clean drum screen. Note: If minilab prints more than 2000 prints each day, clean drum screen up to twice daily.
If your printer is spitting out pages full of strange characters, symbols, or strange formatting, your inkjet printer drivers may be outdated, incompatible with your operating system or corrupt. Drivers are important to the proper function of your inkjet printer and it is best to check for updates regularly.
A printer printing lines on the page are normally caused by a blocked, dirty, or damaged print head. Blocked ink cartridge nozzles, or not removing protective seals correctly when you installed a new ink cartridge can also cause missing lines of print.
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 Color LaserJet 2550
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 Color LaserJet 2550
HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr
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HP Color LaserJet 2550
I just bought an officejet 3830 2 weeks ago. Now it won't print at all! Says inkjet jam. It's not! I've done all the fixes as per hp's website now what?
ANSWER : Take it back and exchange it under warranty.
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HP Color LaserJet 2550
Black line printing in the middle of the page from top to bottom
ANSWER : Take out the toner cartridge and look at the drum. If you see the line, replace the cartridge. If you don’t, then you need to replace the fuser assembly.
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HP Color LaserJet 2550
vertical lines in the print
ANSWER : Looks like a bad wiper blade in the toner cartridge. They are rubber and with age. Their function is to clean off residue toner on the drum, similar to a windshield wiper blade cleaning off rain drops.
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HP Color LaserJet 2550
HP Deskjet 640c wont print??
ANSWER : yes
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HP Color LaserJet 2550
HP DeskJet 1220C Prints only Pink & Black
ANSWER : hi everyone. i have an hp ink advantage 5525 all-in-one. changed all cartridges as they were empty and when i tried to print i got blank pages. i gave a print order a couple times to find out what was going on and found out that yellow and magenta inks worked but not cyan and black. removed cartridges, clean and all many times and nothing happened. then i tried this youtu.be/f57jOGj-G5s and the print quality of magenta and yellow improved significantly but still no black or cyan at all. i can’t do the running water thing because the print head is not detachable. any suggestions?
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HP Color LaserJet 2550