Samsung SCX 4521F
my printer has been producing a very dark line in the middle of a copy,what could be the problem?
Experienced technical support provide their insights in answering this question :
If you are using the adf feeder to make the copy, it would be something like white-out on the scan glass. The scan glass is usually a thin piece of glass that sits to the left of the main glass. Clean it with a paper towel and window cleaner.
How to Identify and Fix Common printer Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced technical support :
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.
Since ninety percent of streaks on copies are from dust particles, and most of which come from pen ink and white-out, make sure you send clean documents through your copier.
First, try a spray of glass cleaner into a paper towel or rag. Once the glass cleaner is applied to your rag scrub away! When you feel you have cleaned the slit glass try running a copy through the automatic feeder and see if the lines on your copies have gone away.
Remove any toner or other debris from the drum by spraying it with compressed air. Place the drum back in the copier carefully, and replace the toner cartridge. With the glass cleaned, loose toner removed and the drum cleaned, the streaks should be gone.
This issue is usually resolved by cleaning and/or replacing the drum unit.
A thick black vertical line(s) that appear on the faxes you send, the images you scan into the computer and copies you make usually indicates a problem with the scanner unit and the machine will require service.
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.
Line copy consists of solid lines or areas that have no gradation of tone. Examples of line copy include typesetting, pen and ink drawings and typewritten sheets. A line shot is used to photograph line copy.
Black lines and smudges on your document may indicate that your printer is dirty. Dirt, dust, or toner accumulated on the rollers or transfer belt can cause smears and smudges on the paper as it goes through the paper.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Black line on printed copy
ANSWER : Have absolutely no idea what kind of machine you have so here’s the generic answer. Big copy glass, little copy glass to the left of it. Take window cleaner, put it on paper towel, clean little glass.
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Samsung SCX 4521F
Black line on the copy
ANSWER : If you are using the adf feeder to make the copy, it would be something like white-out on the scan glass. The scan glass is usually a thin piece of glass that sits to the left of the main glass. Clean it with a paper towel and window cleaner.
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Samsung SCX 4521F
canon mx320 copies have blk line down the right side of copies
ANSWER : If you are using the ADF feeder to make copies, then check the small glass on the left side. If there is any dirt or whiteout on the glass, it will result in a line down that spot. You can confirm it by looking at the copy that has the line. If it is dirt on the glass, the line won’t go all the way from top to bottom. There will be a margin on each end.
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Samsung SCX 4521F
A dark line has appeared running down the centre of the copies
ANSWER : Assuming you are using the ADF feeder, try cleaning the long thin glass to the left of the main copy glass. It seems that nobody realizes that this glass is used exclusively by the ADF for copying. More than 1/2 of the copiers I’ve worked on have white-out or dirt on this glass and nobody thinks to clean it. Any dirt or white-out on this glass will result in a line since the copy moves past the scanner and the stationary spot is perceived as a line.
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Samsung SCX 4521F
Horrible lines in copying or scanning
ANSWER : If you are using the ADF, all pages are scanned with the scanner stationary on the left side. There is a small glass above the scanner and if there is anything on it, dust, whiteout, ink etc. it will interpret it as a line. First solution would be to clean the glass with window cleaner and a paper towel. If that doesn’t solve it, then scan the page on the flat glass and see if the problem continues.
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Samsung SCX 4521F
black smudge lines
ANSWER : Not knowing if the drum is OEM or remanufactured or if it is way expired, only thing I can suggest is looking at it. Take the toner out and turn it manually with your thumbs on the gear. The drum should be clean all the way around.
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Samsung SCX 4521F
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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Samsung SCX 4521F
laserjet 4200 black line
ANSWER : please had ds problem with my printer.
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Samsung SCX 4521F