Question about Xerox WorkCentre C2424DN All-In-One Laser Printer

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Blurry Copies on Xerox WorkCentre C2424

Cleaned drum unit, encoder and drum motor with all gears, etc. Now its jamming and still blurry. Ran all troubleshooting tests including "clean smears". still not working.

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  • Anonymous Mar 19, 2014

    My machine says "drum cartridge {A-1, A-4{ need to be replaced" I emptied the drum and reinstalled but it still wont work. Any suggestions?



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There are three typical reasons for fuzzy text

1. Y-axis drum rotation problem.
2. Wrong drum temperature.
3. X-axis movement problem.

Sometimes the y-axis encoder will get oil inside and confuse the sensors, causing fuzzy/blurry print.

Most likely the drum assembly will need replaced.

Posted on Jan 17, 2009


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Blurry images

Yeah , that is most likely the problem. If ou remove the right side cover , there is an encoder on the end of the drum motor shaft, It becomes contaminated with the silicon from the maintenance kit.
Fixing it requires you to pop the encoder off and flush it well with alcohol. It is unlikely is has failed, but when dirty is causes the drum to turn at the wrong speed.

Mar 27, 2009 | Xerox Phaser 8550/DP Thermal Printer

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Phaser 8400 Printing Blurry

The Drum Encoder is behind the fan assembly.

When you take the encoder cover off be extremely careful.
Use a cotton swab on the disc only with just a light amount of alcohol on the encoder disc.

Dec 17, 2008 | Xerox Phaser 8400 Laser Printer

1 Answer

Posted the original problem as Blurry Copies for the Xerox WorkCentre X2424. Did what was suggested which was to clean the encoder with alcohol which is located in the drive/drum motor. Now the unit is...

Have u tried the any of the following?

Clean the Charge Scorotron and the Transfer Corotron

Unlatch Then Relatch the Transfer Unit Below the Xerographic Module

Remove Paper and Other Obstructions From the Paper Path

Use Paper or Other Stock From a Fresh, Unopened ****

Dec 03, 2008 | Xerox WorkCentre C2424DN All-In-One Laser...

1 Answer

Blurry copies on Workcentre C2424. Tried the solution regarding the encoder on the drive/drum motor. However, now the unit is back together but showing two codes: 04,024.4X & 07, 007.40. Not copying but...

Both are related to the process control signal. That is the motor assembly on the right side of the machine that is responcible for the movement of the maintenance kit.
You may have something disconnected from it. Or the sensor on the maintenance lift plate is disconnected or knocked out of position. But those coded both relate to the process control motor and gear chain. That is the motor on the right side, toward the front with the gear cluster attached.

Dec 03, 2008 | Xerox WorkCentre C2424DN All-In-One Laser...

1 Answer

Blurry copies

On the drum drive motor there is an encoder, it gets contaminated by the silicon oil in the maintenance kit. Removing it and cleaning it will alcohol will normally resolve that problem.
Sometimes that encoder will need to be replaced. But if you need further instructions, ask, I will let you know what to do.

Nov 26, 2008 | Xerox WorkCentre C2424DN All-In-One Laser...

1 Answer


There is an encoder on the drum drive motor that picks up lubricant from the maintenance kit. It may simply need cleaned, if cleaning doesnt work, it will need to be replaced.
Xerox has parts lists on the site for that product if you need to locate it.

Sep 09, 2008 | Xerox Phaser 8400 Laser Printer

1 Answer


It can be the problem. You want be sure you have the ink cleaned out of that area . The block should slide out easily. Look and see if there is ink laying under the block and also under the waste tray.
The 07,007 code is more from the process control motor. That drives the maintenance kit up and down into position to clean the drum.
if there is ink in that area the maintenance roll with not move properly. Also there are small holes in the process drive motor frame that must align with the holes in the gears for it to work properly.
It is a clear plastic frame, you can also see the holes in the gears which can be pinned with paper clips. When re installing the motor assembly make sure the arrows on the bottom of the assembly align. Its not hard. 4 tors screws and remove the wires running across it. I have seen that gear chain be out of timing a few times.

Aug 02, 2008 | Xerox WorkCentre C2424DN All-In-One Laser...

1 Answer

Phaser 8550 Blurry

there is an encoder ring on your drum tha has gotten dirty with grease it needs to be cleaned off so colors will line up

Jul 28, 2008 | Xerox Phaser 8500/DN Printer

1 Answer

Phaser 8560 blurr

There is an encoder on teh drum motor that picks up lubricant from the maintenance kit and causes those blurs. It eneeds cleaned or replaced

Jul 11, 2008 | Xerox Office Equipment & Supplies

1 Answer

I have a Xerox Phaser 8400 and when I print it is blurry. I have done a clean and replace maintenance kit. What next?

Most likely the drum encoder has picked up lubricant from the maintenance kit. If you remove the right side cover it is on the end of the drum shaft. Normally cleaning that well resolves blurrs.
The drum itself may not getting perfectly into print position either. A cable hanging it up just a little to far from the drum.
But most likely the encoder needs cleaned. Possibly replaced.

May 04, 2008 | Office Equipment & Supplies

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