Question about Fujitsu fi-4340C Flatbed Scanner

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Fujitsu fi-4340c ADF lamp replacement (top and bottom)

When using the ADF on my fi-4340c scanner, the top (back) side of the scanned document is much lighter than the bottom (front). I've can't find a way to independantly change brightness settings for each camera. I want to switch the top lamp unit with the bottom unit to see if that is the proplem before I spend money on a new lamp, but I don't know how to replace either the top or the bottom unit. Any assistance would be much appreciated.

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6 Suggested Answers

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Posted on Jan 02, 2017

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mohanchennai
  • 490 Answers

SOURCE: fi 5750c adf will not initialise

Clean the rubber rollers in the ADF with a well wrung cloth thoroughly. Use IPA (Isopropyl Alcohol) if reqd. Dont use any other solvents.

S. Mohan

Posted on Mar 14, 2008

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Roshan89
  • 271 Answers

SOURCE: Scanner Display Shows False Jam

You can try 1. reseting the scanner 2. uninstalling and reinstalling the software

PLEASE don't forget to RATE ME (FIXYA) for my help..........

Posted on Aug 15, 2008

  • 3 Answers

SOURCE: How to disable Fujitsu fi-5750C ADF

Your scanner will never pass the initial boot "test" sequence without getting sensor and light readings. Cut the binding and scan it through the adf and save a few weeks work.

Posted on Jan 20, 2009

VRSKING
  • 31 Answers

SOURCE: Fujitsu fi-4340C changing the bulb

Open up the ADF ****.
Remove Two Silver screws holding front
of top cover.
Remove screw from ADF release button.
Pull back of top cover to unclip.
This will enable you to see the rear lamp bay
and camera unit.
Lamp is situated under Camera unit.
ADF = Auto Doc Feeder.

Posted on Jun 10, 2009

TechSatya
  • 104 Answers

SOURCE: has Fujitsu fi-4340c scanner. Worked for a while

Hi,
Explanation:
Front Side Optical Alarm only generated when start command is received or when white level reference is checked (every 50 scans). CCD output must be above predetermined slice level when reading the white reference. Slice level is set in F/W and compared to the read range values. The read range is approximately pixel 120 to 4800. If CCD output does not reach slice level the AGC tries to adjust the output of the amplifier to exceed the slice level. If any portion of the read range is lower than slice then Optical Alarm is generated. Also, it can be generated by dirty optics or reference, bad lamp or CCD.

Resolution:

If "Front Side Optical Alarm" appeared, clean the glass (small and large one) of the flatbed and carrier unit.
If the issue persists, then check if CCD harness or CR cable is disconnected? Connect the connector.
If the issue persists, then replace Front lamp.
If the issue is not resolved, then replace the Control PCA or Carrier unit or Optical unit.

Pls acknowledge if the issue is resolved.

Regards,

Tech Satya

Posted on Feb 09, 2010

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1 Answer

How many lamps are in fujitsu 5750c scanner? how can i replace them?


Hi Albert,

There are two CCD lamps inside Fujitsu fi-5750c Duplex scanner.One is ADF Front and the other is ADF Back.To replace them, you may need the help of Fujitsu certified technician, for the procedure requires technical expertise.

Thanks & regards,

ScanCare

Nov 08, 2011 | Fujitsu fi-5750C Flatbed Scanner

1 Answer

The scanner is reporting an E2 error code when it draws a document in. Any ideas? Re-cycling the power clears error but comes back when I scan. thankyou in advance


Hi,

This error message means ADF front side scanning optical alarm (lower optical unit ADF) which indicates ADF (front) lamp intensity check. Please follow the steps provided below:

1. Is the upper glass (white sheet guide)of the reading section dirty?

Open the ADF, and clean the sheet guide (white part) and the glass.
# When operating the scanner, the ADF’s inside glass becomes very hot. Take serious caution as the heat can cause burns. Before you clean the inside of the scanner, turn off its power and unplug the AC adapter from the outlet and wait (at least three minutes) until it gets cold.Be careful not to pinch your fingers when the ADF cover is being closed.
Note: Cleaning should be done approximately every 10,000 sheets scanned, though it may vary depending on types of
documents scanned. More frequent cleaning is necessary when the following types of documents are scanned:
- Smooth surface document such as coated paper
- Documents printed on almost entire surface
- Documents processed with chemical materials such as carbonless paper
- Paper with a high calcium content
- Pages with pencil lead
- Document where toner is not fused sufficiently.

If the above does not help, then the issue is caused by any of the followings for which you may have to contact the Fujitsu Expert/Engineer.

1. Lower Optical unit ADF may be dirty.
2. Lower lamp may not be functioning properly.
3. The connecting cables might be damaged.
4. The connectors are not connected properly.

Hope the above information is helpful.

Regards,

TechSatya

Jun 29, 2010 | Fujitsu fi-5750C Flatbed Scanner

1 Answer

Anomaly in the light intensity of ADF front side. Fujitsu 5750c s


Hi, 

This error code denotes ADF front side scanning optical alarm (lower optical unit ADF) which indicates ADF (front) lamp intensity check. Please follow the steps provided below:

1. Is the upper glass (white sheet guide)of the reading section dirty?

Open the ADF, and clean the sheet guide (white part) and the glass.

# When operating the scanner, the ADF’s inside glass becomes very hot. Take serious caution as the heat can cause burns. Before you clean the inside of the scanner, turn off its power and unplug the AC adapter from the outlet and wait (at least three minutes) until it gets cold.Be careful not to pinch your fingers when the ADF cover is being closed.
Note: Cleaning should be done approximately every 10,000 sheets scanned, though it may vary depending on types of
documents scanned. More frequent cleaning is necessary when the following types of documents are scanned:
- Smooth surface document such as coated paper
- Documents printed on almost entire surface
- Documents processed with chemical materials such as carbonless paper
- Paper with a high calcium content
- Pages with pencil lead
- Document where toner is not fused sufficiently.

If the above does not help, then the issue is caused by any of the followings for which you may have to contact the Fujitsu Expert/Engineer.


1. Lower Optical unit ADF may be dirty. (Remove any dirt inside of the mirrors and lens of the Optical unit ADF with blow brush. Do not use air sprays which may build up condensation on the mirrors.)
2. Lower lamp may not be functioning properly.
3. The connecting cables might be damaged.
4. The connectors are not connected properly.

Hope the above information is helpful.Please revert if you have any doubt.

Regards,

TechSatya

Jun 28, 2010 | Fujitsu fi-5750C Flatbed Scanner

1 Answer

How do i reset the pick roller counter on my 4340c scanner?


First go to this site: http://www.fujitsu.com/downloads/COMP/fcpa/scanners/fi-4340c_maint-guide.pdf and download Fi4340c PDF, look over directions on cleaning Pickup Rollers be careful with handling delicate plastic moldings. After a good cleaning Test Unit. Now left ADF unit back as to service and power off a minute or 2. This should reset and bring back the normal "ready" display.

Jun 02, 2010 | Fujitsu fi-4340C Flatbed Scanner

1 Answer

ADF is starting the page scan about 1/2 inch above the top of the page


Pop open the cover and clean the rollers with alcohol. Your feed pad could be worn out also. Make sure the feed switch actuator is not sticking.

Jan 05, 2010 | Fujitsu fi-4340C Flatbed Scanner

2 Answers

Fujitsu fi-4340c scanner not scanning all of back side of page


these rear camers get the board that has the CCD chip on it come loose from the camera. take off the ADF cover, at the from of the rear camera you will see the board held on with 2 screws, there have probably come loose. you will need to tighten them up with the board in the right place to allow the image from the camera to be focused on this chip. it will take you a while to get it in the correct place, but once you have it correct, the image will be perfect again. let me know how you get on

Jul 08, 2009 | Fujitsu fi-5750C Flatbed Scanner

1 Answer

Fujitsu fi-4340C changing the bulb


Open up the ADF ****.
Remove Two Silver screws holding front
of top cover.
Remove screw from ADF release button.
Pull back of top cover to unclip.
This will enable you to see the rear lamp bay
and camera unit.
Lamp is situated under Camera unit.
ADF = Auto Doc Feeder.

Jun 09, 2009 | Fujitsu fi-5750C Flatbed Scanner

1 Answer

Fujitsu fi 4750c scanner error


Try a flatbed scan scan with the cover open.  If you see the lamp come on, it's likely a cable or CCD problem, though it can be caused by a really dirty reference strip or mirrors. I've never seen one that dirty but it's mentioned in the service manual. I have seen lost documents in the ADF unit cause backside optical alarms, but the front unit is protected from this by glass. If the lamp doesn't light, it can be a defective lamp or cable. In all these cases, you'll need a tech onsite. Disassembly of this model is difficult & reassembly is even worse. I wouldn't recommend it even if you're mechanically inclined.

Apr 07, 2009 | Fujitsu fi-4750C Flatbed Scanner

1 Answer

How to disable Fujitsu fi-5750C ADF


Your scanner will never pass the initial boot "test" sequence without getting sensor and light readings. Cut the binding and scan it through the adf and save a few weeks work.

Oct 27, 2008 | Fujitsu fi-5750C Flatbed Scanner

2 Answers

Scanner Display Shows False Jam


You can try 1. reseting the scanner 2. uninstalling and reinstalling the software

PLEASE don't forget to RATE ME (FIXYA) for my help..........

Aug 15, 2008 | Fujitsu fi-5750C Flatbed Scanner

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