Question about Xerox WorkCentre M20i All-In-One Laser Printer

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Adjustment for light copies on a xerox m20i

Cleaned **** glass and platen glass

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You will need to do a couple of things, 1 remove, disassemble the scanner and thoroughly clean it, and while you have the scanner out, remove and clean the laser.
The toner cartridge may also be defective. that metering blade in that cartridge fails and causes light images also.
If you need instructions on how to remove and clean the scanner and laser let me know, I will type them out to you.
Not hard, just time consuming.
If you print out a report how does that look? If prints look fine and just the copies are light, then the mirrors in the scanner head a re probably fogged up. All the plastic in that scanner causes that same film on your scanner optics as you develop on your car windshield. Same process.

Posted on Jan 22, 2009

  • Marcy Linxwiler
    Marcy Linxwiler Feb 10, 2014

    can you send the instructions step by step to remove and clean the scanner?

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Related Questions:

Tip

Black lines across copy when using Document Feeder.


Many people ask this same question over and over again. "I get black thin line (s) when using document feeder. If my original is on the platen glass copy is OK."

Well, in most copiers, be it Xerox or Canon or Sharp there is same principle in use. When document is moving it is exposured (copied) by a steady non-moving exposure lamp. If there is any dirt or even a dust particle on the narrow platen glass it will print out as a line.

Most people don't understand this principle and they say "I 've cleaned the platen glass".OK, they have cleaned the BIG glass, but the glass is the narrow one next to the big one. Very often there is glue or white correction lacquer on the platen which of course adheres more dirt.

You may use even the strongest solvents to get dirt off the glass. Remember, it is made of glass and won't get hurt even if you use thinner or nail polish remover.

This tip applies also on fax machines. The receiving end may call back and say "your fax has a lot of lines across the copy".

on Sep 08, 2010 | Printers & Copiers

1 Answer

How do I get the platen glass off of my M20i? Either it is stuck or I'm doing something wrong. I need to clean the under side of the glass. Can anybody help?


1. Remove the Document Feeder
2. Remove the Doc Scanner
3. Find the hooks on the Doc Scanner to the right and left to separate the glass frame from the plastic scanner housing.

That should give you access. Best of luck.

Whit
Item, Inc.

Aug 20, 2010 | Xerox M20I Grayscale Copier

2 Answers

Xerox m20i scanning problems


its probably set to a low DPI.......change your dpi to like 600 when scanning

Nov 02, 2009 | Xerox WorkCentre M20i All-In-One Laser...

1 Answer

LIGHT COPIES


You have to do what is called a "shading adjustment".
In order press "menu" #1934 on the machine, You will see a " T " displayed in the upper right side of your display. That means you are in the Tech mode. Some versions of software will also just say Tech.
Press the machine status button and then scroll to maintenance. Once there scroll to Adjust Shading, or Shading adjustment.
Place 5 pieces of clean white paper on the glass, 5 pages thick., not spread out, then close the cover and press start, it will ask you if you want to perform the adjustment , just press yes again. It will print out a page when done, that page displays across it, the pixils the the CCD in the scanner sees. If you notice it had some large deviations in it, the scanner will need cleaned. The numbers on that page will really mean nothing, Even if it says OK on the bottom does not mean the mirrors in the scanner are clean.

Jan 22, 2009 | Xerox WorkCentre M20i All-In-One Laser...

1 Answer

Copy Problem


Since you cleand the scanner and scans are fine, the other item I seen cause that problem is the power supply.

Jan 07, 2009 | Xerox WorkCentre M20i All-In-One Laser...

1 Answer

Have a Xerox M20i. Copy comes out light. Toner should be OK. Prints fine. Scans fine.


You need to clean the scanner. You can try doing the shading adjustment to calabrate the scanner but most likely the mirrors are hazed up. Since you can print fine you eliminate the laser.
To do the shading adjustment, you need to press in order,,, Menu # 1934, You will see a " T "on the screen, that will be the tech mode. Press the machine status, then go to maintenance, then scroll to shading. Place 5 sheets of white paper on the glass and then run the shading adjustment. turn the machine off and on, and run copies again. But most likely you will have to take the scanner off and clean it.
If you want to clean the scanner let me know, I will send you directions on how to do that. The mirrors in that scan head tend to haze up.

Jan 06, 2009 | Xerox WorkCentre M20i All-In-One Laser...

1 Answer

Black streaks across the page


hello,first of all,make a copy true the adf,and the next on the platen glass,if both copys are good,then the problem is inside the machine,i.e.drum unit or fuser roller damage.
if the strikes only occurs,by using the adf,then cleaning the scanner platen glass,it is the small glass unit!!! on the left side,from the big platen glass..

good luck Sjeuf

Apr 11, 2008 | Panasonic Workio DP-2330 Printer

1 Answer

Problemas a Imprimir, recuadros y lineas


Sounds like a dirty seal glass. Clean the glass on the left side of the scanner. The 1/2 inch strip of glass.

Feb 12, 2008 | Xerox WorkCentre M20i All-In-One Laser...

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