Ever Smart Jazz Scanner

It should not fog up. Has something been spilled on it? I would first try a hair dryer on it. But don't over hear anything

Hi ,
You probably already found this :
http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/performMaintDisplay/?sp4ts.oid=297429&spf_p.tpst=psiContentDisplay&spf_p.prp_psiContentDisplay=wsrp-navigationalState%3DdocId%253Demr_na-c01275864-2%257CdocLocale%253Den_US&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken
According to it , you should normaly contact a HP technician to have the job done . Nevertheless , I succeeded to clean the underside of the glass inside a HP Scanjet 5470C wich seems similar to your model 2400 . If you take of the lid of the unit , you should find two screws in the opening of the hinges . Unscrew them and lift up the the whole top of the unit . You might encounter somme kind of resistance during the operation but I finally succeeded to get the it free that way .
Best regards .

Solution one: Reset the product If there is static interference, or loose connections with the product, this can result in bands or lines in the copy, fax, or scan output. To resolve this issue, check the product connections and reset the product Press the Power button ( ) to turn on the product.Disconnect the power cord from the rear of the product.Unplug the power cord from the wall outlet.Wait 30 seconds.Plug the power cord back into the wall outlet. Reconnect the power cord to the rear of the product.Press the Power utton ( ) to turn on the product.Try to copy, fax, or scan again.If these steps resolved the issue , you do not need to continue troubleshooting.If the issue persists , continue to the next solution.
Solution two: Clean the scanner glass and scanner lid If the scanner glass or the white underside of the lid has fingerprints, smudges, lint, dust, or other debris, this can slow performance and affect copy and scan quality. To resolve this issue, clean the product.Before you begin, gather the following materials:Several clean, soft, lint-free cloths

Mild glass cleaner
CAUTION: Use only glass cleaner to clean the scanner glass. Do not use cleaners that contain abrasives, acetone, benzene, or carbon tetrachloride. These substances can damage the product. Avoid isopropyl alcohol (rubbing alcohol) because it can leave streaks on the glass.

1. Press the Power button ( ) to turn off the product.
2. Disconnect the power cord from the rear of the product.
3. Lift the scanner lid. Figure 3: Lift the scanner lid
   
4. Spray a clean, soft, lint-free cloth with mild glass cleaner.
   CAUTION: To protect the scanner, do not spray the glass cleaner directly on the glass.
5. Clean the scanner glass with the lint-free cloth. Figure 4: The scanner glass
   
6. Clean the glass strip next to the scanner glass with the lint-free cloth. Figure 5: The glass strip
   
7. Dry the scanner glass and the glass strip thoroughly with a clean, dry cloth or chamois to prevent spotting, and then dry the white underside of the scanner lid.
   NOTE: Do not use paper-based wipes or tissues that can leave fiber residue.
8. Clean the white underside of the scanner lid. Figure 6: The underside of the scanner lid
   
9. Close the scanner lid.
10. Reconnect the power cord to the rear of the product.
11. If the product does not turn on by itself, press the Power button ( ) to turn it on.
12. Try to copy, fax, or scan again.

• If these steps resolved the issue , you do not need to continue troubleshooting.
• If the issue persists , continue to the next solution.

Solution three: Clean the automatic document feeder (ADF) Use the following steps to clean the automatic document feeder. Step one: Clean the ADF rollers and separator pad

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.
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 7: Lift the ADF cover
   
6. Find the pick rollers and separator pad. Figure 8: Locations of the pick rollers and separator padLightly dampen a clean lint-free cloth with distilled or bottled water, and then squeeze any excess liquid from the cloth.
7. Use the damp cloth to wipe any residue off the separator pad.

Follow these steps to clean the scanner :
1

Open up your scanner's lid. It does not matter if the scanner is on or off for this basic, regular cleaning.

2

Wipe down the glass surface with a dry, lint-free microfiber cloth. This will remove any dust or other fine particles that have accumulated on the scanner. You should remove excess dust every day or two.

3

Scan a blank sheet of white paper into your computer and look for visible discoloration. A white sheet will provide a clean, blank slate to view the scanner's overall quality. If you notice any irregularities on the white sheet, you need to do more thorough, semi-regular cleaning.

Semi-Regular Cleaning

1

Turn off the scanner and open up the lid.

2

Spray a small amount of "mild glass cleaner" on a soft, clean cloth as recommended by Scanner-Magic.com.

3

Wipe the scanner's glass to thoroughly clean the area. You should perform this semi-regular cleaning at least every two weeks or sooner if a white sheet of paper indicates discoloration.

4

Keep the scanner's lid open for a few minutes until all excess glass cleaner has dried.

This is acutally easier than it looks. I just had the same problem with a cloudy film starting to form underneath the glass on my older HP 4400C scanner.

First completely remove the hinged top lid by lifting straight up on both long ends of the lid - notice the 2 hinges on the back end of the lid will come straight up and out of the body of the scanner, still attached to the lid.

Next look down inside the 2 hinge holes (on the main body of the scanner where the lid hinges just came out of) and you will see a screw in each hole. Remove both screws using a phillips screwdriver. This will allow the rear end of the scanner to come apart enough so you can now lift it up a few inches to separate it and get your hand inside there to clean the underside of the glass with a soft cloth - BUT JUST REMEMBER THE FRONT END OF THE SCANNER WILL STILL BE CONNECTED, so don't pull it too far apart because it could snap and break something that is still holding the front end together. (I could not figure out how to separate the front end piece, and then I realized I didn't have to).

So on the rear end of the scanner, now carefully pull the light upper colored plastic apart from the lower dark plastic just enough so you can get your hand inside the compartment and use a soft cloth to clean the underside of the glass. I just used a small piece of an old cotton t-shirt with a couple little dabs of water on it and then just kept rubbing the dirty areas on the underside of the glass over and over until all the dust film/streaks disappeared and the glass was once again clean and all clear.

Then gently lower the glass back down and line up the plastic pieces together on the rear end and put the 2 screws back in the hinge holes, and then reinsert the hinges in their slots and lower the lid back on top of the scanner glass and it is ready to go again !!

Hope this works for you like it did for me.

It takes several steps to remove the glass carrier for cleaning, but it's not really difficult. You'll need a T10 Torx screwdriver, eyeglasses cleaner or similar, and a lint-free microfiber cloth.

1) Remove usb and power cables. Flip the front covers open (revealing the cartridge-insertion area). Remove 2 screws from the right-side panel, and remove that panel.

2) Open the photo-paper holder on the left side, depress plastic tabs on its top and bottom so it can swing out 90 degrees, and remove it.

3) Remove 2 screws from the left-side panel, and remove the panel. This exposes the gears of the paper-handling mechanism; take care not to move the gears. Disconnect the three ribbon cables connected the bottom circuit board.

4) Flip up the LCD, exposing a screw. (Note that this one is shorter than all of the others.) Remove the screw. Lift the scanner lid and remove two screws just behind the rear of the glass. Close the cover. Lift the rear of the glass carrier, then slide it back slightly to remove it. Take care not to move the scanner bar that remains in the main body of the machine.

5) Keeping the lid shut, flip the glass carrier over over. Spray cleaner on the glass and wipe; repeat as needed. I use a bright light at a low angle to check for particles on the glass.

To reassemble, just reverse the steps. Finish by cleaning the top of the glass.

Paul Hays

I would not worry about the underside of the glass unless you are having problems. The focal length of the ccd that captures the image is very specific and probably will not pick up anything under the glass. It is normal for the underside to look foggy but it will not hurt anything.

Here are the steps:

Remove and set aside the scanner cover

With printer facing away from you, remove the screw from under the right-hand corner of the lid at the very back behind the hinge. Then remove the two (shorter) screws from the top of the lid, in the square openings.

Turn the printer around, and carefully raise the entire lid. At this point, it is advisable to place a cloth over the printer innards, in case you drop a screw. Remove the three screws along the front of the lid, inside the round recesses, pointing upwards.

Remove the two screws on each side of the lid, pointing upwards.

Gently coax the dark gray cover away from the lighter gray base of the lid. It is probably easier to do this by pulling the front corners slightly outwards, and sliding a finger in between. The top of the lid should come off easily, exposing the underside of the glass.

After cleaning, replace the cover carefully. The lid must be up, and the posts of the hinges must align with the holes at the back. In stall the two (short) screws in these locations first, then replace all the remaining longer screws.

Good luck!!

Scanner Lock -- a possible quicker fix

Instead of removing the entire glass plate, just remove the narrow glass strip to the far left. To do this, open the scanner top revealing the glass, and remove the philips screw centered on the left edge. With a thin flat-head screwdriver or even a good set of fingernails, you can then pry out the thin U-shaped plastic piece holding the glass strip in place.

When you remove the glass strip, you now have (narrow but sufficient) access to the scanner pulley and belt. Pull the spring-loaded pulley back towards your right to get some slack on the belt, then remove the belt from the pulley.

This frees up the scanner head, which you can now slide manually (by pulling gently on one end of the belt and giving slack on the other) to a center position well away from the scanner lock. When I first tried, I didn't move the scanner head far enough -- to the middle or beyond seems sufficient.

Push the scan lock to the full lock and then the full unlock position, to make sure it is now free.

Using fingers, screwdriver, and/or pliers, re-seat the belt on the pulley, once again using the freedom to move the spring-loaded pulley a bit to the right.

Replace the glass strip, plastic cover, and screw.

Power on the scanner. The error message should now be gone, and the scanner head should slide back to its resting position on startup (unless something is caught underneath, which was apparently the case for some who had this problem but was not the case for me). If the first power cycle doesn't do the trick, another power cycle might be helpful.

This approach eliminates the need to remove the scanner lid, control panel, and scanner glass.

remove the lid by lifting up. There are two philips head screws exposed. Remove screws and lift top of scanner off. Pay particular attention to thumb wheel position when lifting. Go to computer repair center and buy double sided tape. replace tape and reverse process