Question about HP LaserJet 4 plus Printer

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Black mark down left hand edge - HP LaserJet 4 plus Printer

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It's either the toner cartridge failing (try another), or he fuser is worn out - I wouldn't spend any money on this, if the toner cartridge doesn't solve the problem. - just my 2 cents.

Posted on Apr 17, 2009

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Posted on Jan 02, 2017

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Error el1 after i've cleaned the printer with with compressed air can you help me ?

You will probably find there is some toner on the left hand edge of the OPC belt that interferes with the optical sensor reading the page rotation mark on the edge of the OPC. It may also have coated the optical sensor that is in front of the left hand edge of the OPC belt

Aug 12, 2013 | Brother HL 2700CN Laser Printer

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Sorry my printer is a Canon MF8180C laser and I could not find any information in what you provided to solve the blck marks around the edges of the page

Are the black marks down both sides of the page and if so what shape are they? Are they a sharp edge black mark or faint feathered mark?
You say the black marks are around the edges of the page, does that mean all 4 edges?
Also is it when you print from your computer or when you copy using the document feeder?
There are 3 possible causes but I need to know the answers to my questions.

May 19, 2011 | Canon imageCLASS MF8180C All-In-One Laser...

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Replace blade on electric lawn mower


If you have a work bench, place your mower on the bench on its side or upside down where you can see what you are doing. If no bench, the floor of your garage or your driveway will work too.
Get a small 2 x4 block, a C-Clamp or some other device to keep the blade from spinning.
Get a ratchet or breaker bar and socket to fit the bolt in the center of the blade.
After you are sure the blade is blocked from spinning, turn the socket and ratchet to the RIGHT (clockwise) to loosen the nut until you can completely remove it.
When you install the new blade, look at it to see if it is marked "grass side" if it is not marked, the sharpened area on the blade should have the "beveled" edge toward the housing and remember the nut will turn to the left (counter-clockwise) to install and tighten. (Electric mowers have LEFT HAND THREADS due to the rotation direction of the motor.)

Oct 08, 2009 | Black & Decker 18", 6.5a Electric Mower

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Black line 1cm in from margin when printing

this is a catridge problem so pls replace your printer catridge.

Aug 22, 2009 | Brother MFC-9420CN All-In-One Laser...

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Printer making marks down the left hand side of every page


This sounds like the photoconductor units for both black and blue need to e replaced. Open the front of the printer like you are changing toner cartridges. On the front door parts that opens to you there will e four pieces, 1 for each color. Look at the one with blue on it and the one with black and look on the ends of these, they are the photoconductor units. I bet both of the colors have worn sections compared tothe magenta and yellow ones. The replacement part number is C53030X and you will need 2 of these. They have a life span just like toner and have to be replaced too.

I hope this helps,

Corporate Computer
Over 21 years of PC and printer support/repair

Jun 18, 2009 | Lexmark E232 Laser Printer

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Black smudge marks along left side edge of paper.

Its probably a defective toner. If the film on the toner drum is scratched it can cause toner to stick to the drum everytime it spins causing the constant marks.

Jul 08, 2008 | HP LaserJet 1320 Printer

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Black marks on left side of paper

how far apart are the spacings? inches or cm would be fine

Apr 02, 2008 | HP LaserJet 4 plus Printer

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