lexmark 264 scanner failure 844.02

[eliaso]

after cleaning the scaner it is geaving black line about 2 cm .
then I pull out the connection of the lamp and put it again , it give this error scanner failure 844.02.
thanks for help .

[eliaso]

vertical black line ,when print from the pc its good copy ,when make copy it make the black line

[Iowatech]

I am basing this on the assumption that you are referring to a Lexmark X264. If that is incorrect, please ignore the rest of this post.
First, the bad news. On all the Lexmark machines I have worked on so far, a scanning failure usually means the entire scanning unit needs to be replaced. Sorry.
Still, you might want to check the wiring harness to the scan lamp on the off chance you may have routed the wiring harness incorrectly.
Also, if you disassembled the scanner to clean it and then the line occurred, you probably should double check the unit to make sure it was reassembled correctly. If things are out of alignment that can cause copy defects like the line.
Hope there's something here that can help.

[eliaso]

I am basing this on the assumption that you are referring to a Lexmark X264. If that is incorrect, please ignore the rest of this post.
First, the bad news. On all the Lexmark machines I have worked on so far, a scanning failure usually means the entire scanning unit needs to be replaced. Sorry.
Still, you might want to check the wiring harness to the scan lamp on the off chance you may have routed the wiring harness incorrectly.
Also, if you disassembled the scanner to clean it and then the line occurred, you probably should double check the unit to make sure it was reassembled correctly. If things are out of alignment that can cause copy defects like the line.
Hope there's something here that can help.
Hello
I clean every day scans for HP and Samsung ,it's the first time I see this problem,can the sun light broke the eye lens,or maybe when i connect the scanner cable in the main board it make this error

[Iowatech]

Hello
I clean every day scans for HP and Samsung ,it's the first time I see this problem,can the sun light broke the eye lens,or maybe when i connect the scanner cable in the main board it make this error

If the unit was exposed to strong, direct sunlight for a while, that could damage the scanner. And that would make a line on the entire length of the copies, too.
That's a good idea about the scanner cable, I have seen that on other Lexmark equipment. I think that machine uses a flat cable from the scanner to the main board, so check the metal contacts on the cable for damage. The damage I've seen on the flat cables is bits of metal are missing from the contacts, and one time when the damage wasn't too bad I was able to trim a very tiny bit off the end of the cable with a sharp pair of scissors which fixed the problem. But that only applies to flat cables.
Well, I hope there is something you can use here that can help.

[eliaso]

If the unit was exposed to strong, direct sunlight for a while, that could damage the scanner. And that would make a line on the entire length of the copies, too.
That's a good idea about the scanner cable, I have seen that on other Lexmark equipment. I think that machine uses a flat cable from the scanner to the main board, so check the metal contacts on the cable for damage. The damage I've seen on the flat cables is bits of metal are missing from the contacts, and one time when the damage wasn't too bad I was able to trim a very tiny bit off the end of the cable with a sharp pair of scissors which fixed the problem. But that only applies to flat cables.
Well, I hope there is something you can use here that can help.
hello again
the flat cable is OK i was very careful with it and it's the first time it puled out ,but when i look to the connection in the main board I saw a free space in it( left and right ) , it's mean maybe I putted the flat cable in a wrong place (maybe) .

[Iowatech]

hello again
the flat cable is OK i was very careful with it and it's the first time it puled out ,but when i look to the connection in the main board I saw a free space in it( left and right ) , it's mean maybe I putted the flat cable in a wrong place (maybe) .

I'm pretty sure that if you plugged the cable into the wrong connector the scanner wouldn't have worked at all. (Something to try: get a felt tip marker pen or something and mark any empty connectors around the connectors that are filled before you disconnect anything. That makes reconnecting things a lot faster for me at least.)
So if you are certain that the connector is OK, the problem is likely in the scanner. If you use something that can blow air when you clean other scanners, you might want to aim that at the lens eye, and the components behind it as well. If that doesn't work, the scanner is probably unrepairable and needs to be replaced.
While you probably already know this, I would still like to warn you to not disassemble the lens eye portion of the scanner. I did that once years ago on a fax machine, and it took me hours of adjustments to get that machine to mostly work again.

[subaro]

Was this machine working without problems before the cleaning ?. if yes, then you have to retrace your steps in removing the parts you removed and check for damaged flat cable, especially the ends where the contacts are. see that the contact metal traces are not raised of the cable or bent, sometimes this happens.
Also, his statement of seeing a open spot and installing the cable there is very scary, i would not want him to install a power supply and then what cross fingers.
This is what happens when techs refuse to look at the service manuals when they are not familar with a procedure.
I think his problem is when he pulled out connection to the lamp. if not put back correctly, then for sure his error message.


this is from the service manual for this machine

844.01 844.02
Front scan module lamp level too low: front Monochannel, Front Color channels, Front Red channel, FrontGreen channel, and/or Front Blue channel is detected to have low lamp level.

[blackcat4866]

...
While you probably already know this, I would still like to warn you to not disassemble the lens eye portion of the scanner. I did that once years ago on a fax machine, and it took me hours of adjustments to get that machine to mostly work again.

I'll confirm that. For me it was a Brother fax, around 1992.

A fellow tech had cleaned the optics, for fuzzy images, and ended up with black prints. Then it came to me. It took about 3 hours of fiddling to get a little blurry image in one of the corners, then a few dozen minor nudges and two more hours to get it aligned. If you see painted screws, you won't want to touch them, ever, for any reason, unless you're scrapping it out. =^..^=

[Iowatech]

Also, his statement of seeing a open spot and installing the cable there is very scary, i would not want him to install a power supply and then what cross fingers.

Thanks for the confirmation of my previous post. Although my post was technically better.

[eliaso]

I'll confirm that. For me it was a Brother fax, around 1992.

A fellow tech had cleaned the optics, for fuzzy images, and ended up with black prints. Then it came to me. It took about 3 hours of fiddling to get a little blurry image in one of the corners, then a few dozen minor nudges and two more hours to get it aligned. If you see painted screws, you won't want to touch them, ever, for any reason, unless you're scrapping it out. =^..^=
Hello
I cleaned only the mirrors I don't touch the eye of the lens

[eliaso]

Was this machine working without problems before the cleaning ?. if yes, then you have to retrace your steps in removing the parts you removed and check for damaged flat cable, especially the ends where the contacts are. see that the contact metal traces are not raised of the cable or bent, sometimes this happens.
Also, his statement of seeing a open spot and installing the cable there is very scary, i would not want him to install a power supply and then what cross fingers.
This is what happens when techs refuse to look at the service manuals when they are not familar with a procedure.
I think his problem is when he pulled out connection to the lamp. if not put back correctly, then for sure his error message.


this is from the service manual for this machine

844.01 844.02
Front scan module lamp level too low: front Monochannel, Front Color channels, Front Red channel, FrontGreen channel, and/or Front Blue channel is detected to have low lamp level.
hello
the copy was bad ( so light )the print out from PC was Ok
the flat cable contacts are good and no damage in it ,i saw a free space in the connection of the main board where connect the flat cable ,so...maybe incorrect connection maked the problem
i reset it, it work from the menu ( make test configuration ) but when make copie the error shown and it stop again

[subaro]

844.xx Scanner exposure
lamp failure
The flatbed scanner exposure
lamp has failed.
Replace the exposure lamp.