Lines On Copies

Lines on Copies of a zebra

Lines On Copies

Lines on copies or printed pages can be caused by a few different things. Users can usually fix the most common causes without needing to call for service.

Manufacturer User Manuals have equipment specific instructions

Having a user manual and being familiar with it can help you complete the steps listed below.

Most user  manuals can be found with a quick search on the internet. Here is a link you can use to find user manuals listed by manufacturer

Black or Colored lines on copies

The most common problem is having a dirty glass. Sometimes you can’t see that the glass is dirty. It doesn’t take much for the scanner to pick it up and put lines on your copies.

Clean the Glass

There may be more than one glass, so clean all of them. Typically there is one large glass and a smaller one for the document feeder.

White out and corrective tape is frequently found on the glass, although it is white, it can still cause black lines on copies. Sometimes toner or ink from originals transfers and sticks to the glass.

Use a lint free towel (micro fiber towels work best), if you must use a paper towel be mindful of the lint left behind, it can be the source of new lines on copies.

Even small specs can cause problems, so look closely and at different angles to be sure the glass is squeaky clean. I use a razor blade to carefully shave the glass surface. You would be surprised how often unseen debris is stuck to the glass like glue.

Windex won’t hurt the glass but some technicians feel that it leaves a residue that will leave a haze or worse cause automatic document feeders to misfeed. Personally I’m neutral on using Windex. As long as you wipe the glass thoroughly you should be fine. A cloth damp with water works well enough most of the time.

The big glass on top of the machine is easy to find, but look for a smaller slit glass near the big glass, also on top of the machine. The slit glass is used with the document feeder. If you have one make sure you clean it too.

Your document feeder may also have a glass (typically on larger machines)in the paper feeding/scanning path. If it is assessable to you clean it as well.

Corona Wire / Grid Cleaner

Some machines will have a charge wire (corona wire / Charge Grid) cleaner for you to use. You will find it behind the front cover if your machine has one. The handle will be colored to stand out to help you find it. All you need to do is gently pull it out and push it back in. Repeat that in and out motion 3-4 times.

Clean the Laser Slit Glass

Most machines will have a way to clean the glass that the laser passes through on its way to writing on the drum. This is a very common cause of colored lines on copies with color machines. Also a common cause of black lines on copies for both black & white and color machines.

You will have to open the front cover of the machine, and probably have to remove the toner collection bottle. Then you need to find the cleaning tool (techs call it the toothbrush). Sometimes it is attached to the door, or in a compartment in the top paper tray. It will be long, it has to reach into the machine, and will have a brush or soft material on the end.

Then you need to identify the openings near the drum unit or units that the toothbrush goes into.

They will be marked with something colorful to attract your attention and make them easy to find.

The cleaning tool will only go in one way so don’t force it into the opening. Push the tool in gently, you may need to wiggle it a little bit. Push all the way until it stops and carefully remove it. Repeat this 3-4 times. If you have a color machine there will be 4 openings that will need to be cleaned. One for each drum unit.

Other Causes of Lines On Copies

If you have successfully completed the steps above and still have lines on your copies, your problem may require service to the machine. The drum could have lines on it, the fusing unit could have a worn roller, the transfer belt or transfer roller could be the cause. A developer unit may have a problem, or one of the cleaning units may be failing. You can try replacing those units, but they are expensive. It will probably save you money in the long run to hire a professional to identify the cause.

If your located in our service areas of North or South Fl contact us. We would be happy to help you out.


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