How fast should it scan: Fujitsu fi-5900c CGA?

How fast should it scan: Fujitsu fi-5900c CGA?

Postby bollingm@saic.com » Fri Dec 04, 2009 5:12 am

We are using a Fujitsu fi-5900c CGA scanner on a Windows Vista 32 bit OS( 2 Ghz dual core 1 GB RAM) via USB with VRS 4.5 from Kofax not the OEM version.

We are scanning at 300 dpi, duplex, advanced clarity (4), ignore pictures , auto crop, auto rotate, deskew, blank page delete on, and hole punch removal on. After the initial 20 pages which are scanned very quickly the scanner slows down to about a page a second or two being fed through. My question is, is this normal, VRS claims to keep the scanner running at rated speed, and I do not believe we are getting that level of performance. Is the devil in the details of the VRS claim because to get the rated speed you have to scan at 200 dpi with none of the VRS features turned on?

What can we do to improve the performance?

Thanks

MikeB.
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby rpapa » Fri Dec 04, 2009 6:26 am

I believe all scanners are rated at 200dpi, bitonal. Most scanners slow down when scanning in grayscale and color. VRS scans in grayscale.

what application are you using to scan? are you appending or creating a new file for each page?

what happens if you turn off all vrs settings?
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby bollingm@saic.com » Fri Dec 04, 2009 9:18 am

we are using Kofax Capture (8.0) Scan. Speed does increse when turning off VRS features but I thought the point was that it wold continue rated speed even with the VRS features on.

Thanks

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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby rpapa » Fri Dec 04, 2009 12:06 pm

are you scanning in grayscale when VRS is turned off?

VRS scans in grayscale then converts it to a bitonal imgage.
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby bollingm@saic.com » Fri Dec 04, 2009 12:42 pm

we are using VRS and want to ( for all the cool features) so yes, we are scanning in greyscale.

Thanks

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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby russell@centuryc.com » Fri Dec 04, 2009 1:21 pm

bollingm@saic.com wrote:After the initial 20 pages which are scanned very quickly the scanner slows down to about a page a second or two being fed through.


Kofax rates the scanner at 114 ppm / 228 ipm with VRS so you should be seeing that.

I don't think the problem is VRS. Kofax Ascent is not able to keep up for some reason and it's slowing down the scanner. Where are your images being written to? What's your network speed? Have you tried turning off Anti-virus?

Keep in mind that with this scanner you're creating 3.8 files per second and updating a database file almost as often. A sluggish storage system or a anti-virus that falls behind will cause that kind of problem.

Another trick you can do is change the setting in the scan module: Tools > Options > Performance tab.
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby russell@centuryc.com » Fri Dec 04, 2009 1:23 pm

Oh, another question - when it slows down, is the screen display keeping up with the scanning or is it several pages behind? If it's behind, then it's a scanner to PC communication problem (you sure that port is USB 2.0?). If it's keeping up, then it's nothing to do with VRS or the scanner and look at my post above.
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby bollingm@saic.com » Fri Dec 04, 2009 3:47 pm

Russell, thanks for the ideas. The screen will lag a few images after the initial scanning. I can double check the USB, our LAN is gigabit with a pretty fast SAN. I will take a look at the AV.

Thanks

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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby russell@centuryc.com » Fri Dec 04, 2009 3:51 pm

Another test you can do is use VCDemo and scan to the local drive.
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby bollingm@saic.com » Mon Dec 07, 2009 2:08 am

russell@centuryc.com wrote:Kofax rates the scanner at 114 ppm / 228 ipm with VRS so you should be seeing that.


So, is that spec at 200 DPI with what VRS features enabled, I would like to get a baseline number and work from that if possible.
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby rpapa » Mon Dec 07, 2009 3:15 am

have you checked fujitsu's website?

http://www.fujitsu.com/global/services/ ... 0c/#idspec

it says: for VRS:
Color:
[A4 Landscape]
Simplx: 120ppm (200dpi / 300dpi)
Duplex: 230ipm (200dpi) / 160ipm (300dpi)
[A4 Portrait]
Simplx: 100ppm (200dpi / 300dpi)
Duplex: 200ipm (200dpi) / 160ipm (300dpi)

Grayscale:
[A4 Landscape]
Simplx: 120ppm (200dpi / 300dpi)
Duplex: 240ipm (200dpi) / 200ipm (300dpi)
[A4 Portrait]
Simplx: 100ppm (200dpi / 300dpi)
Duplex: 200ipm (200dpi / 300dpi)
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby russell@centuryc.com » Mon Dec 07, 2009 11:20 am

bollingm@saic.com wrote:So, is that spec at 200 DPI with what VRS features enabled, I would like to get a baseline number and work from that if possible.



Performance numbers are based on Kofax SQA results when scanning with VRS Default settings.
Unless otherwise indicated throughput tests were performed with the following configuration:
o P-IV 2.8 GHz with 2 GB RAM
o 200 DPI
o Black & White
o Duplex (if available)
o Letter size
o Landscape & 90/270 Rotation (if available)
o Prescans = 6
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby bollingm@saic.com » Mon Dec 07, 2009 12:40 pm

Russell et all thanks for all the help. I did some baseline testing today to see where things were, like most things, may have only introduced more questions.

1. On the 5900 with 200 DPI the default settings ( out of the box) for VRS scanning to the local drive and the SAN we approached what we would think to be acceptable scan rates with no image delay on the screen.

2. We then ran the same images at our production setting at 300 DPI with the VRS defaults and still had good performance with no image delay.

3. Then we ran at 300 DPI with VRS advanced clarity turned on (4) and this is when we say the images slow down considerably. This is our production setting.

Then I ran the same order of test with our Fujitsu fi-6770 and with the same results except for when we got the third scenario 300 DPI with clarity, our scan rates remained constant.

So where does that leave us? One thought was that the 5900 has a VRS HW board (CGA?) in it the we are plugged into, rather than the other USB port. In our installation, we never had the 5900 detected by Kofax Scan when not plugged into the VRS USB port. My understanding is that the 5900 comes with VRS 4.2 OEM, but we are running VRS 4.5 off of our Kofax Capture installation. Could there be a conflict between the two? Is the HW VRS processing images and then the SW VRS?

Thanks in advance

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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby russell@centuryc.com » Mon Dec 07, 2009 1:47 pm

In checking the scanner configurator, the only recommended combinations all involve the use of the 650i card (SCSI), not the USB. It does list other combinations using the USB on the CGA card. The native USB is not supported at all.
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Re: How fast should it scan: Fujitsu fi-5900c CGA?

Postby ltran » Tue Dec 08, 2009 5:49 am

bollingm@saic.com wrote:We are using a Fujitsu fi-5900c CGA scanner on a Windows Vista 32 bit OS( 2 Ghz dual core 1 GB RAM) via USB with VRS 4.5 from Kofax not the OEM version.

We are scanning at 300 dpi, duplex, advanced clarity (4), ignore pictures , auto crop, auto rotate, deskew, blank page delete on, and hole punch removal on. After the initial 20 pages which are scanned very quickly the scanner slows down to about a page a second or two being fed through. My question is, is this normal, VRS claims to keep the scanner running at rated speed, and I do not believe we are getting that level of performance. Is the devil in the details of the VRS claim because to get the rated speed you have to scan at 200 dpi with none of the VRS features turned on?

What can we do to improve the performance?

Thanks

MikeB.


Turn off advanced clarity, it's the one that slow down your scanner.

I talked with some Fujitsu guys a while ago and bring up the issue that advanced clarity slow down the scanner. They told me that they would recommend using advanced clarity in QC Later mode.
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