Question about HP LaserJet 4 plus Printer

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My laserjet printer 4 is printing with black lines and I have shaken new printer and it is still printing with black line.

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The fuser needs to be replaced. You can find them online, cost between 100-200 dollars, depending on if you buy new or refurbished. Replacement is simple, and you can find an online tutorial to assist if necessary. Take off the back cover, there are 2 screws holding the fuser in. Unscrew them, pull the fuser straight out, insert new one, add screws, put cover back on.

Process takes me about 2 minutes or less

Posted on Jun 18, 2009

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Posted on Jan 02, 2017

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Related Questions:

1 Answer

Black horizontal lines


recharge(with new OPC, PCR and mag roller) or try another cartridge - if problem not solved - fuser film damaged

Jun 09, 2013 | HP LaserJet 1320 Printer

1 Answer

4 black lines at every print


Mostly black lines prints due to problem in the Black toner cartridge. remove the Black toner out and inspect the toner drum, whether are their any black patch on the toner drum. If it so there's a problem in the black toner. Replace a new black toner and check.

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Black line on left side of paper


I forget the terminology but I believe there's either dirt or a sheet of paper on an internal roller.

You might try here for HP help.

Aug 12, 2012 | HP LaserJet 1300 Printer

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Hp laserjet 4 plus - keep getting a horizontal black line


yes you have to catch printer making the line and then as a page is being printed you need to open door to stop paper after green cylinder(drum) as it is entering fuser, then you need to remove paper from printer without pulling through the fuser, if you see the line then rub your finger across line up and down page, if it smears at all then its the cartridge if not then the fuser

Apr 27, 2009 | HP LaserJet 4 plus Printer

1 Answer

Light lines down middle when printing black


try to clean the class of the machine, if its still there, this means the black drum is scratched since its fine with other colors, to test it very good open the document feeder(put it up) and hit start buttom(without putting anypaper on class), black paper will come out, check if the line there, if yeah, change the black drum.
let me know wat happen Regards

I’m happy to help further over the phone at https://www.6ya.com/expert/mustafa_06f84c65ab5cc745

Apr 24, 2009 | Samsung CLX 3160fn All-In-One Printer

1 Answer

HP Laserjet IIIP starting printing thin vertical black line


Was this happening before you swapped toner?
Is there toner streaks on the drum? Yes? Defective.
What if you stop the printer (open cover) as it passes through the fuser to determine if image is from drum or fuser?
But really....isn't it time to move on anyway???

Mar 20, 2009 | HP LaserJet IIIp Printer

2 Answers

Lines across printed pages


I think you need a new cartridge.

Oct 24, 2008 | HP LaserJet 4 plus Printer

1 Answer

Installed new toner. Printer prints well, except approx 1 inch of vertical line doesn't print about 1/2 inch from right margin. Have gently shaken cartridge, run a cleaning paper, reiserted cartridge.


Assuming none of your print area margin settings have been changed, it sounds like you may have a defective drum. You can try carefully cleaning the corona wire, a hair thin wire, with a dry cotton swab. Do not touch the drum! The drum is an integral part of the toner cartridge. Return it to the store as defective.

Aug 17, 2008 | HP LaserJet 1022 Printer

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