KM 458e- Black box when scanning only

[zackrch]

Hello, Has anyone ever had a problem when scanning there will be a black box in the middle of the paper?Using konica model B/W 458E.This is happen only if use for scan other than that nothing wrong.I have reconnect the ccd cable,prcb cable and all other cable that connect to the scanner unit and also i already upgrade latest firmware.


konica.jpg

[Zesti]

Re: KM 458e- Black box when scanning only

What about copying????
Scanning from ADF or Glass????

[zackrch]

Re: KM 458e- Black box when scanning only

Scan using adf or glass same problem but copying is okay, my conclusion is the mfpb problem.

[Bix]

Re: KM 458e- Black box when scanning only

Scan using adf or glass same problem but copying is okay, my conclusion is the mfpb problem.

Why MFPB? I'd look for something wrong with the scanner first.

[tsbservice]

Re: KM 458e- Black box when scanning only

Disconnect DF and remove dual scan board. Does it scan correct that way?

[acusso1234]

Re: KM 458e- Black box when scanning only

https://www.copytechnet.com/forums/konica-minolta/131702-c454e-df701-2nd-side-scanning-issue-post739264.html?highlight=#post739264

[allan]

Re: KM 458e- Black box when scanning only

So LEF on the glass and DF?
Alway in the same position?

Main scan line failure?

[zackrch]

Re: KM 458e- Black box when scanning only

I guess mfpb problem because when I scan to the userbox and I zoom in on the machine there will be a picture like a damaged TV when i the zoom out it will disappear, if i print from the userbox all is fine.I changed ram/eMMcb and hdd already but no luck.

scan to userbox.jpg

[Zesti]

Re: KM 458e- Black box when scanning only

I guess mfpb problem because when I scan to the userbox and I zoom in on the machine there will be a picture like a damaged TV when i the zoom out it will disappear, if i print from the userbox all is fine.I changed ram/eMMcb and hdd already but no luck.

[ATTACH=CONFIG]47325[/ATTACH]

Couldn't got it..... scan in user box showing pixels on preview but when print from box print is fine??????

[zackrch]

Re: KM 458e- Black box when scanning only

Couldn't got it..... scan in user box showing pixels on preview but when print from box print is fine??????

Yes correct but my senior said change scanner board first if still same then proceed mfpb

[tsbservice]

Re: KM 458e- Black box when scanning only

Yes correct but my senior said change scanner board first if still same then proceed mfpb

What's wrong about trying it without dual scan board?

[zackrch]

Re: KM 458e- Black box when scanning only

What's wrong about trying it without dual scan board?

What do you mean? If i take out the board how can i scan?

[Zesti]

Re: KM 458e- Black box when scanning only

Scanner board is for dual scanner DADF only. But the problem is also showing from glass. Am I right???

[mearmi]

Re: KM 458e- Black box when scanning only

What do you mean? If i take out the board how can i scan?

tsbservice means

Disconnect the Document Feeder and Remove Dual Scan Board from the machine and scan from Platen Glass.

[tsbservice]

Re: KM 458e- Black box when scanning only

What do you mean? If i take out the board how can i scan?

You claimed problem from both glass and DF right? Without DF you still should be able to scan from glass.