HP Color LaserJet 4550
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How to Identify and Fix Common Problems ?
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Lines or streaks always appear in printouts when the cartridges begin to run out of ink. Replace print cartridges that are out of ink or low on ink.
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.
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.
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.
White lines will typically start appearing on your print outs due to a clogged up printer head. Your first port of call when solving this problem is to run the cleaning program on your printer, which should be accessible through its settings menu.
A printing defect characterized by elongated blotches of ink in non-image areas, commonly caused by mechanical problems with the press, such as damaged rollers (in lithography), or by improper wiping of a gravure cylinder by the doctor blade (due to dried ink fragments attached to it, or other such problems).
The best way to prevent smearing is to make sure you give the ink time to dry before picking up the copy or copies. It doesn`t take long, maybe 10-15 seconds. If that doesn`t work, try changing your printer settings for a lower quality print job. You generally have a choice, Best, Normal or Draft.
Smears and smudges on the paper can be caused by dirt, dust, or toner accumulated on the rollers or transfer belt as it passes through the paper. Cleaning your printer, particularly the rollers, is one of the options for removing black markings from paper.
These types of lines are typically caused by dirt or white out (correction fluid) on the scanner unit, or one of the corona wires for printing is dirty. This problem is usually resolved by cleaning the scanner glass, scanner glass strip and white plastic bar with a soft lint-free cloth, or cleaning the corona wires.
Smears that appear in addition to otherwise well-formed output may signal toner contamination inside your LaserJet, either from a leaky cartridge or from improperly fused sheets that leave toner residue behind. Smears at the edge of the sheet that enters the printer first point to dirty paper guides.
Smears that appear in addition to otherwise well-formed output may signal toner contamination inside your LaserJet, either from a leaky cartridge or from improperly fused sheets that leave toner residue behind. Smears at the edge of the sheet that enters the printer first point to dirty paper guides.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
HP Color LaserJet 4550 Streaking
ANSWER : hello,
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HP Color LaserJet 4550
HP Color Laserjet 3800 problem when printing color
ANSWER : Do a cold reset
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HP Color LaserJet 4550
HP Color Laserjet 2840 spitting out blanks
ANSWER : Moe- You are the man!
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HP Color LaserJet 4550
My 2550n Color LaserJet does not want to print in color
ANSWER : That model had issues with the carousel solenoid sticking. That might explain why it works after you let it sit for 10 minutes. The solenoid gets hotter with use which causes the deteriorated foam on it to become sticky and hold down the release plate instead of letting it go. This allows the carousel to spin when it is supposed to stop for each color. The solenoid is located on the right side of the printer. If you open the lid, it is just behind the opening at the top right. You need to remove the top of the printer and scrape off the goo on top of the solenoid body. I put a piece of thin sticky backed felt to replace it. Other people use electrical tape.
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HP Color LaserJet 4550
Reset HP Color Laserjet 4700 transfer kit
ANSWER : How about the situation when resistor does not reset the transfer belt count and even new transfer belt out of the box is not doing it. Do you have any idea how to solve this problem? I did reset transfer belts and fusing units on several HL 4700 printers with no problem but also I came across few which were not possible to reset even with oryginal parts.
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HP Color LaserJet 4550
HP Color Laserjet blank pages – only jetdirect page
ANSWER : What about the engine test? To do that, drop down the front tray. Feel around on the left side at the top and you’ll feel a little plastic dongle. If you lift up on that it will initiate an engine test page. That will be a page containing lines of each color.
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HP Color LaserJet 4550
HELP! HP Color Laserjet 5500dn (formatter prob??)
ANSWER : Italiano:
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HP Color LaserJet 4550
HP Color LaserJet 4700
ANSWER : Saludos Amigo le Que le Pasa a tu Impresora Es Que Tienes rota El Sistema de sierre de la puerta con el Cierre de los tóner es Por Esa Razon Que No Cierra los tóner Si Quieres repararla Ponte en Contacto Madrid Seis Cinco Cinco Tres Cuarenta dos cuarenta y uno Reparación en el Momento saludos
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HP Color LaserJet 4550