What is adf - Office Equipment & Supplies

To replace the ADF pickup/roller assembly on a Brother MFC-L8900cdw printer, follow these steps:

1. Turn off the printer and unplug it from the power outlet.
2. Open the automatic document feeder (ADF) cover and remove any paper from the feeder.
3. Locate the ADF pickup/roller assembly. It is located underneath the ADF cover and consists of a set of rollers that are used to feed paper into the printer.
4. Use a small screwdriver to remove the screws that secure the ADF pickup/roller assembly in place.
5. Carefully lift the ADF pickup/roller assembly out of the printer.
6. Install the new ADF pickup/roller assembly by aligning it with the mounting holes and securing it in place with the screws.
7. Close the ADF cover and plug the printer back in.
8. Turn the printer on and test the ADF to make sure it is functioning properly.

If you are having difficulty replacing the ADF pickup/roller assembly or if the problem persists after replacing it, it may be necessary to have the printer serviced by a professional. A technician will be able to diagnose the problem and determine the necessary repairs.

Hello Desir,
Try these steps as well:

Clear the paper jam from the automatic document feeder
Follow these steps to clear a paper jam from the automatic document feeder (ADF)

1. Press the Power button to turn off the printer.
2. Disconnect the power cord from the rear of the printer.
3. Remove any originals from the document feeder tray. Figure : Remove any originals
4. Lift the cover of the ADF until it stops.
   Figure : Lift the ADF cover
5. Check for any jammed paper in the rear of the ADF.
6. Gently grasp any jammed paper in the ADF with both hands, and then pull the paper slowly but firmly upward to remove it.
7. Lift the tab located on the front edge of the ADF to raise the ADF mechanism.
8. Gently grasp any jammed paper in the ADF mechanism, and then pull the paper slowly but firmly upward to remove it.
9. Close the ADF cover.

Clean the automatic document feeder
If the product picks up more than one sheet of paper from the automatic document feeder (ADF), clean the rollers and the separator pad in the ADF.
Step one: Clean the separator pad and rollers

1. Gather the following materials:
   
   • A clean, lint-free cloth, or any cloth that will not come apart or leave fibers
   • Distilled, filtered, or bottled water (tap water might damage the product)
2. Remove any documents from the document feeder tray. Figure : Remove documents from the ADF
3. Press the Power button () to turn off the product.
4. Disconnect the power cord from the rear of the product.
5. Lift the cover of the ADF until it stops.
   Figure : Lift the ADF cover
   
   1. The ADF cover
   2. The ADF rollers
   3. The ADF separator pad
6. Find the separator pad.
7. Lightly dampen a clean lint-free cloth with distilled or bottled water, and then squeeze any excess liquid from the cloth.
8. Use the damp cloth to wipe any residue off the separator pad. Figure : The separator pad
9. Find the ADF pick rollers.
   Figure : The ADF pick rollers
10. Use the damp cloth to wipe any residue off the rollers.
11. Dry the rollers and separator pad with a clean, dry, lint-free cloth.
12. Close the ADF cover.

To simply say thanks, please click the "Thumbs Up"button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as "Accepted Solution" as it will help several others with the same issue to get it resolved without hassles.
Thanks,
Nidhish

Ensure that the proper paper size is being used in the ADF.

Are the paper guides on the ADF tray properly adjusted?

Inspect the ADF separator roll and ADF separator pad for wear. If they are worn,

replace them. If they are dirty or have a buildup on them, clean them with a damp

cloth.

If the ADF fails to pick check to make sure that the paper height in the ADF input

tray is beneath the height marker on the ADF paper guides.

Inspect the paper present sensor on the ADF.

• Check the flags on the sensor. Are they able to move freely? If the sensor

flags are damaged, replace the ADF assembly.

Make sure the ADF cable is securely connected to the ADF and the controller

card.

If the cable is properly connected, perform the following checks:

• Check the ADF cable for continuity.

• Check pin 1 on controller card connector J2 for +5V.

• Pin 3 should be ground.

If voltages are present, replace the ADF.

If replacing the ADF does not fix the problem, replace the controller card.

If the ADF is multi feeding, check the ADF pick roller and pad for dirt. Remove

them from the MFP, and clean them with a lint free cloth and isopropyl alcohol.

If the leading edge of the paper is damaged, instruct the user to lessen the

number of documents being copied from the ADF at one time.

If there are excessive misfeeds from the ADF, verify that the ADF paper tray and

extender are properly installed.

Skews and jams at the ADF paper present sensor might be caused by an
improperly closed ADF cover. Ensure the ADF cover is closed properly.

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Step one: Check the paper in the ADF The condition of the paper or the amount of paper loaded in the ADF might prevent the ADF from picking it up and feeding it through the product.

1. Make sure that no more than 50 sheets of paper are in the ADF input tray.
2. Make sure the original is not photo paper or carbon paper. These types of originals must be loaded on the scanner glass.
3. Make sure the original document that is loaded in the ADF meets the following criteria:
   • Free from curls, folds, creases, and tears
   • Does not have staples or clips attached

Step two: Make sure the ADF pick assembly is in good working condition

1. Remove the document feeder and open the ADF cover.
2. While lifting the blue-green lever, carefully rotate the pick assembly toward the open ADF cover until it stops.
3. Examine the pick assembly.
   • Make sure the bottom roller is held firmly in place by the two-catch, which is located to the left and the right of the roller.
   • Make sure the stack stopper, which is located between the top and bottom rollers, fits within the double slots just above the bottom roller. The stack stopper should move freely within the double slots to flow up and down when the whole pick assembly is lifted and lowered into position.
4. Return the pick assembly to its original position.
5. When the product is turned on, the top roller will reset to its original position above the separator pad. There will be a gap between the separator pad and the top roller.
6. If there is no gap between the ADF top roller and the separator pad, press the Power button to turn off the product.
7. Wait three to five seconds and then press the Power button to turn the product on. The ADF rollers should reset to the correct positions.
8. Close the ADF cover and replace the document feeder.

Step three: Clean the rollers and separator pad

1. Remove the document feeder and open the ADF cover.
2. While lifting the blue-green lever, carefully rotate the pick assembly toward the open ADF cover until it stops.
3. Lightly dampen a clean, lint-free cloth with distilled water, and then squeeze any excess liquid from it.
4. Use the damp cloth to wipe any residue off the rollers and the separator pad. If the residue does not come off using distilled water, use isopropyl (rubbing) alcohol on the cloth instead.
5. Return the pick assembly to its original position.
6. Close the ADF cover and replace the document feeder.

Step four: Detaching and re-attaching the ADF pick roller assembly If the ADF pick assembly is detached or not connected properly, follow the steps below to resolve the issue. If the ADF pick assembly works well, do not perform these steps.

1. Press the Power button to turn off the All-in-One.
2. Remove the document feeder and open the ADF cover.
3. Press the blue-green ADF-release button to release the ADF rollers from the pick assembly as shown in the figure below (the red arrow is pointing to the ADF release button).
4. Re-attach the ADF pick rollers by placing the rollers into the roller slot of the ADF pick assembly as shown in the figure below. The red arrows show the gears on the ADF pick assembly aligned on one side. The yellow arrows point to the two-catch notch.
5. Once the rollers are placed on the two-catch notch, push them in, so that the two-catch clicks into place. The photo below shows a correctly installed ADF pick assembly.
6. Close the ADF assembly and cover.
7. Turn the product on and make a copy with the ADF to check that the pick assembly works.

check ADF rollers and re-feed pads.(maint cycle approx.50~80K)
Also check ADF is square on copier..sometimes people push on ADF when moving machine and get ADF out of alignment.