HP Color LaserJet 4650
How to Identify and Fix Common Problems ?
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HP has determined that 99% of all lines and streaks on copies made by feeding the original documents through the ADF are caused by debris on the ADF glass. Debris can include dust, paper or toner dust, residue from sticky note adhesive, correction fluid or tape, ink, fingerprints, and more.
Vertical Streaks or Lines
Vertical white lines also can signal an obstruction that prevents the laser from imaging pages correctly. Resolving that problem can require cleaning elements of the laser assembly or replacing it altogether.
Vertical lines in prints are an early warning sign of a low ink cartridge, which may show up before the printer`s low ink alerts start. You can fix the problem by replacing the low cartridge. Gently shaking the drained cartridge a bit may help to get another few prints out of it without vertical lines.
Generally speaking, a visible vertical line down your page after printing is an indication that the image drum in the machine may be damaged. It could also mean that the machine is reaching the end of its life.
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.
The appearance of horizontal or vertical lines and wrinkles is due to various factors, among them genetics (loss of elasticity and firmness, slower cell renewal rate), hormone changes, sun exposure, smoking, pollution, stress and, of course, repeated facial expressions.
Loose cable connections: Loose cable connections, such as the HDMI or video cable, can cause vertical lines to appear on the screen. Check the connections to make sure they are securely fastened. Overheating: Overheating can cause vertical lines to appear on the screen.
Often, when there are lines or shading on your print job, the print cartridge could be the reason. When the print cartridge is not being effectively cleaned off, it creates streaks or shading on the document.
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.
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.
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.
This happens when the rollers or the transfer belt inside the printer get dirty or covered in excess dirt, ink or toner powder, and as the paper is moved through the printer the `tracks` are being left on the page. This is normally the case when the tracks on the page are located at either end.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
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 4650
Black line down right side of page
ANSWER : The black film is the upper fuser roller. You need to replace the fuser unit. Not hard to do. Remove the back “door” and flip down the two blue levers. The fuser will slide straight out.
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HP Color LaserJet 4650
Vertical lines on paper
ANSWER : You can use Isopropyl Alchol. I would wait until it cooled down first.
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HP Color LaserJet 4650
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 4650
vertical lines
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HP Color LaserJet 4650
smudge line across the page 3/4 way down
ANSWER : Only 2 things can cause it, the toner or the fuser. To determine which, you do a half-stop test. To do so, put a sheet of paper in the manual feed tray. Then send a print job while you watch the page. You want to open the lid about the same time that 3/4 of the page has just passed by the toner cartridge. Might take a few tries. This will stop the area with the problem after it passes the toner cartridge, but before it hits the fuser. You look at the paper and if you see the defect, then it’s caused by the toner cartridge. If not, then it is being put on by the fuser. It seems a bit strange to me because normally a defect like that will occur 3 times per page, which is about the circumference of the toner drum or fuser sleeve.
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HP Color LaserJet 4650
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 4650
HP CM2320fxi – Groaning / Vertical Lines
ANSWER : Sounds like you need a monochrome laser printer. I know you want to keep what you already have but it just doesn’t make sense to have to deal with a machine that is meant to provide color printing when you only want black and white printing. Chuck the color laser and get a black and white printer. It will save you money and headaches in the long run.
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HP Color LaserJet 4650