Question about Epson Perfection 4990 Flatbed Scanner

4 Answers

There is a loose part rattling within my transparency hood which prevents it from working - how can I repair this ?

Posted by on

4 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I just had this problem too. What has probably happened is that the belt/wheel assembly within the upper lid has broken loose from its plastic housing. It is normally retained in place by two weak plastic posts, each having a plastic extrusion that holds the metal housing for the wheel in place. Just minor stress can apparently snap off the plastic extrusions. (Nice quality workmanship, Epson.)

Unplug the upper lid and remove it. Unscrew the 5 retaining screws and then use a small flathead screwdriver to carefully pry the bottom of the unit away from the rest of the housing. Stabilize the wheel mechanism so that you can rotate the whole unit around in order to grab the broken plastic pieces and small spring without allowing the wheel mechanism to crash into things. Superglue the two broken plastic pieces to their proper mated location on the lid, and wait about half a day for a solid bond. Then fit the wheel housing over the two plastic pieces so that the thin silver bar is pointed toward the back of the lid. (Do NOT place the spring over the thin silver bar yet.) Fit the orange belt properly around the wheel. NOW, push the wheel housing carefully toward the front of the lid until there is slight tension in the belt. Squeeze one end of the spring over the thin silver bar and push the spring completely into its recessed plastic trough while compressing it. Reassemble, and you're done.

Posted on Oct 27, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

There is a metal tab bent up at the back of the pulley tension assembly. I drilled two small holes -- 1/16" --- on either side of that metal tab. With my wife's help, I looped and tied a piece of strong nylon thread to hold the assembly in place. Not pretty but works perfectly. I did a video and will upload it to you-tube. search you-tube for "Epson 4990 repair". Or search for my you-tube videos. Brian Kuehn.

Posted on Dec 28, 2013

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

A question if anyone is still on this thread: I have the same issue. The plastic post that sits in the slot to guide the wheel mechanism has a small hole. Is there any reason NOT to thread a small screw into this hole? Even if the tabs break again it seems this might keep the assembly attached and stable. Thoughts?

Posted on Jun 08, 2013

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have the same problem. The stubs don't look large enough for a strong bond to the tabs, even with crazy glue. Has anyone successfully repaired this problem with crazy glue?
My thought was to build up around the stubs with epoxy, then drill the stubs with a fine bit, and insert screws to hold the pulley's plate. Has anyone tried this and succeeded?
BTW, I agree - poor design. The tabs may be strong enough for zillions of normal scanning operations, but they are too weak to survive one instance of the top cover slamming down hard, or perhaps multiple milder slams.

Posted on May 16, 2013

  • Brian Allen Kuehn
    Brian Allen Kuehn Dec 28, 2013

    There is a metal tab bent up at the back of the pulley tension assembly. I drilled two small holes -- 1/16" --- on either side of that metal tab. With my wife's help, I looped and tied a piece of strong nylon thread to hold the assembly in place. Not pretty but works perfectly. I did a video and will upload it to you-tube. search you-tube for "Epson 4990 repair". Or search for my you-tube videos. Brian Kuehn.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do I get access to repair loose wires?


Some compact speakers are accessible internally only by removing the the grilles but caution is advised as some grilles are glued on to prevent rattles.

Aug 05, 2015 | HP 2.0 Compact Speakers Br387aa

1 Answer

How to remove the tailgate inside panel to trace a rattle. VW Touran


Rattles are a labor intensive job, I use a tube ( rolled paper to locate position, possibly loose bolts or nuts,

Feb 09, 2015 | 2009 Volkswagen Touran 2.0

1 Answer

I hear a rattling noise while my car is in park and only when it is in park from my drivers side and as i am sitting in the car it sounds like it is right underneath me


Sounds like you have a loose heat shield that is a piece of tin between your exhaust pipe and floor of vehicle. These can rattle pretty bad. While the noise is there, look under vehicle and you may see where it's loose, or corroded.. If you get under the vehicle when it is cooled off, you can probably locat this loose shield within seconds. If it is not loose, wiggle your exhaust pipe and E brake cable. Hopefully you will find something loose

Jan 04, 2013 | Pontiac Sunfire Cars & Trucks

1 Answer

2007 town and country rattling


Check sway bar bushings/links and sway bar bushing/body mounts, rattle mostly when going over bumps/rough spots in the road.

Sep 01, 2012 | Chrysler Town & Country Cars & Trucks

1 Answer

Rattling noise - cold air still coming out


mcdevito75 here, Most likely the fan motor bearing is going on your A/C unit, Check out A/C repair shops in your area in person or online some will come to your home.

Jun 23, 2010 | Whirlpool ACP102 Air Conditioner

1 Answer

There is a loose part in my Mini-Colossal that causes a slight rattling when playing a middle E. The rattling subsides when applying slight pressure to the power amp tube. I?ve since replaced the tubes,...


If this is a vacuum tube unit, SOME vacuum tubes will have spacers within them that can rattle. You cannot get into the tube of course to correct the problem. Replacing the tube MIGHT find one that does not have the loose parts in it.

Feb 19, 2010 | Peavey Jsx Mini Colossal Guitar Amplifier

2 Answers

My 1996 mercedes makes a rattling noise in the front.......


Could be a number of things;
I would go with the recent changes that took place, rim changed? loose lug nuts on the tire?
-Strut loose or worn.
-worn ball joints.
-Caliper pins, or brake worn.
-CV joints may need to be replaced.
-loose parts, fender,hood,fan shroud, battery box.
I could go on.
Should change oil at least every 5,000 kms.

Aug 14, 2009 | 1995 Mercedes-Benz S-Class

1 Answer

Has anyone ever complained about a rattle or buzz coming fron the lower right hand corner area around the windhield? I had the w/s replaced recently and have had a noise ever since. The w/s company looked...


If the rattle is repeatable, try pushing down on either side of the Instrument Panel at the A pillars. If the rattle does not go away, it may be the hood flushness adjusting plastic bolt rattling within the hood hinge. Open the hood and in the hood hinge assembly you will see a hood flushness adjusting bolt. This is the suspect part. Turn the bolt head 1/4 - 1/2 turn counter clockwise. This will ensure full contact of the bolt head to the hinge. Close the hood and try to repeat the rattle. If the hood flushness adjusting bolt is the source of the noise, you can also grasp the rear of the hood (near the windshield) on either side and move it up and down. If the bolt is loose, the hood will have up-and-down looseness. Another issue to be aware of: This noise also may be described as a creak/squeak or sometimes as a pop/snap. The source is the styrofoam block glued to the headliner in both forward corners (at the top of the A-pillar). The styrofoam block, if mis-positioned slightly, can contact the sun visor mounting bracket causing the noise. The noise can be intermittent and can also be affected by temperature (usually occurs when top of vehicle is heated by the sun, but sometimes occurs only when the vehicle is cold). Repair is to use a razor blade and trim the styrofoam block at the point of contact. DO NOT try to remove and re-position the styrofoam block - you'll break it! It is held to the headliner with a really strong adhesive.

Jul 16, 2009 | 2007 Chrysler 300 AWD Sedan

3 Answers

My 1997 Kia Sportage engine is rattling.


hi dear, kia sportage 1997, when drive a car between 60 to 80k/m grear is not shift 3rd to 4th, some time work some not work & rpm going up & down. please tell me what need to do. thanks (mnyahya@yahoo.com)

Feb 21, 2009 | 1997 Kia Sportage

1 Answer

Rattle/Vibration from front of vehicle when idling at stop


Hi and welcome to FixYa. Please try this:
GO out to the car, and lift up on the hood. Does it raise a bit and rattle? If so;
Open the hood, and look at the perimeter of the front radiator support. You will see 2 small rubber thingys, that look like that they are screwed onto the metal that is holding the radiator. Unscrew them a little, and close the hood. Pull up on the hood and see if the rattle goes away. If not, repeat unscrewing the rubber things until the lift disappears.

A FixYa rating (4 blue diamonds) would be greatly appreciated for my assistance.

Feb 10, 2009 | 2005 Toyota ECHO

Not finding what you are looking for?
Epson Perfection 4990 Flatbed Scanner Logo

287 people viewed this question

Ask a Question

Usually answered in minutes!

Top Epson Office Equipment & Supplies Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18391 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

mukhtar21 shaikh
mukhtar21 shaikh

Level 3 Expert

2017 Answers

Are you an Epson Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...