Question about Sharp AL-1642CS Copier

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Lines on copys when i feed through top feeder

I try and wipe down the rollers and the piece near the rollers. but it keeps copying with lines on the pages

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There is a small strip of glass under the feeder.Not the main glass, but look where the lamp is sittting in the start position.
You have something on that section of glass.
It may be very tiny, but that is what causes that. Best way I have found to get that clean is with some alcohol and just a plain piece of copy paper crumpled and used as your cleaning towel.
The reason it is there only when you copy through the feeder is this. When you copy off the glass, the lamp moves and scans the original end to end. So a spot is simply a spot.
When you run through the feeder, the lamp parks and the document passes over the lamp scanning that way. So any mark between the lamp and document will repeat and be line down the page.

Posted on Mar 28, 2008

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Related Questions:

1 Answer

Horizontal line on printed page


When you use the flatbed the copy is perfect because the ccd sensor is under the glass cover and obviously is free form dust/ dirt.
On the other hand if you use the feeder the ccd sensor is located in between the roller assembly (not sure exactly for this model).
This means that the page is scanned by the ccd in the feeder, any dirt on the ccd will appear as a black line. I assume that you are feeding papers from the side and not from the top that is why you get a horizontal line.

A quick test to see if the ccd sensor is dirty is to feed the paper from the top side to the feeder. If you get a vertical line it is a proof that your ccd sensor needs to be cleaned.
The worst case is that the sensor in the feeder assembly has a tiny spot that is damaged and it is causing the black line.
So , first try the test, then open the feeder assembly, locate the ccd and clean it. Hope that this helps.

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I have the SCX-4521. When I feed paper into the top to make copies, the copies come out with a black line in the middle of the page from top to bottom. However, if I make copies by laying the page on the...


Hi there,

Have look where the paper feeds into the tray at the top.

Most likely there is a piece of rubbish stuck in there, another piece of paper or some fluff or something. Blow it out and give it another try.

If this doesnt work open the lid and have a look to the far left of the plate glass. you will notice a small plate glass seperate from the main plate running parallel with the main plate. Clean this with a damp cloth and some window cleaning detergent. Sometimes correction fluid gets wiped off onto this portion which acts as the Scanning Region for documents inserted on the top feeder. This causes a "permanent" black object being scanned for copying, hence the black stripe.

Regards,
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1 Answer

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You need to clean the glass. Open up the feeder and you have a large piece of glass for scanning and to the left a smaller piece of glass that it uses to scan from the feeder. Clean this smaller piece of glass; even the slightest smudge can leave a black streak.

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Vertical black line in scan document not in copies through document feeder


Lift the lid and to the left of the main glass is a smaller glass; that is what scans during the feeding process. Make sure that it is completely clean; even a speck of dust can cause a line to appear. I took a lens wipe and cleaned mine and my line was gone.

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The feed rollers may be worn out and need to be replaced, you can try cleaning the rollers with some alcohol, this may also make it feed better. but if it starts to act up again it might be time for new rollers.

Hope this is of some help.
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2 Answers

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Clean the small piece of glass on the flat bed. Should be on the left side of the flat bed when you lift the doc feeder.

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1 Answer

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look to the side of your big glass and you'll see a piece of glass about 1.5" wide. thats the galss that is used for scanning from the feeder. theres got to be something on that glass. possibly white-out or even a small speck of toner can cause that. look closely.

hth,
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1 Answer

Lines appear when making a copy using document feeder tray


If the lines are vertical (in the direction the ADF feeds, 11in long for 8 1/2 by 11) You can try cleaning the glass the scanner uses when it's using the document feeder. Pull up the top left part of the printer where the documents feed, there's a little rib in the middle of the side to help you do this, then simply pull up the assembly underneath with all the rollers in it, you should see about an inch of glass underneath and a centimeter long strip of white plastic on the assembly (this serves as the white background when feeding slimmer papers) Clean them both. I'd recomend any glass cleaner, just don't spray it in there, spray it onto a cloth.

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The lines are caused by some debris that is on the platen (the glass where you normally place the copies). The usual culprit is white-out smudges from a copy that wasn't completely dried yet. When you make copies using the feeder, the roller passes the paper being copied over a little section of the platen (if you pull up the feeder "lid", it'll be on the right-hand side of the big glass... it might even be marked with 2 green arrow stickers, but if not, it's the part of the glass directly under the roller of the feeder). You can just take an alcohol wipe or soak a cotton ball with alcohol or windex and wipe down that strip of glass under the roller.

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