ricoh aficio mp w2400 , black mark at end of paper

[blackcat4866]

Re: ricoh aficio mp w2400 , black mark at end of paper

It's clearly a compression blur, like you might get if the paper stopped briefly, and the drum continued to turn. A knife problem makes perfect sense. Further, I'd bet that the defect is always a specific distance from the trail edge of the print, and primarily affects wider paper widths.

Congratulations. =^..^=

[mikadonovan]

Re: ricoh aficio mp w2400 , black mark at end of paper

Glad you got it fixed, and thanks for the update. I'll keep an eye out for that one.

[jakani]

Re: ricoh aficio mp w2400 , black mark at end of paper

had more or less a similar problem, turned out to be the cutting knife, on some point it came to late, not always. The knife cuts both ways, and during bigger jobs it did not return on time, and so it did slow-down the paper just for a fraction, witch resulted in such quality problem. After replacing the knife problem solved.
You could see on the affected prints, on the cutting edge of the paper that there was some minor damage, like it was torn for just 2-3mm

hi Vollegaaz , you was right it's the cutting knife ,
my company called a ricoh technician and after he inspected the drum , the developer and the fuser ... it's been three rough days but with no solution
i suggested your solution you posted here many times but nobody was listening until today they found what you already told me two months ago thank you very much

[jakani]

Re: ricoh aficio mp w2400 , black mark at end of paper

UPDATE
i went to see about that problem that came back after a while of cleaning the fuser cleaning roller
what i noticed is this :

when i make copy on the machine it doesn't only produce black mark it also ignore about 5 cm of the scanned copy and in that part it makes the black mark
when i make a blank copy it doesn't produce anything !
before the copy end i hear a weird sound like something stop rolling

at this time all the copies i made came out from the bottom output
i tried top output and everything went very well !

i appreciate any suggestions to solve this problem .

[PA3040]

Re: ricoh aficio mp w2400 , black mark at end of paper

Remove the drum unit and clean the wast toner recycle coil and check the around parts

[Polarbear]

Re: ricoh aficio mp w2400 , black mark at end of paper

i noticed that the machine makes a weird sound before i get the black mark problem , but that machine still new (installed 6-7 months ago ) with 10000 meters on counter !

I would take the side covers off so i can see if there is a drum slip/stall issue. Also keep in mind that these have a waste toner bottle on the one side of it, that has an actuator that "vibrates" the bottle so that the toner remains even inside. This can also cause "weird" noises in the machine, that happens at odd times.

From your photos it looks like there is either drum or paper stall taking place. It does not seem to take place long enough for the machine to relise a jam condition, but long enough to upset the print image.

[jakani]

Re: ricoh aficio mp w2400 , black mark at end of paper

had more or less a similar problem, turned out to be the cutting knife, on some point it came to late, not always. The knife cuts both ways, and during bigger jobs it did not return on time, and so it did slow-down the paper just for a fraction, witch resulted in such quality problem. After replacing the knife problem solved.
You could see on the affected prints, on the cutting edge of the paper that there was some minor damage, like it was torn for just 2-3mm

i noticed that the machine makes a weird sound before i get the black mark problem , but that machine still new (installed 6-7 months ago ) with 10000 meters on counter !

[Vollegaaz]

Re: ricoh aficio mp w2400 , black mark at end of paper

had more or less a similar problem, turned out to be the cutting knife, on some point it came to late, not always. The knife cuts both ways, and during bigger jobs it did not return on time, and so it did slow-down the paper just for a fraction, witch resulted in such quality problem. After replacing the knife problem solved.
You could see on the affected prints, on the cutting edge of the paper that there was some minor damage, like it was torn for just 2-3mm

[jdzr]

Re: ricoh aficio mp w2400 , black mark at end of paper

The fusing cleaning roller only turns when the machine is reversing the paper from the fuser, that is why it does not always print. You can try scraping the streak off but anything you clean the roller with will also affect the oil the roller is impregnated with. If I was going to the trouble to remove the roller and clean it I would definitely just replace the roller. I have also run the earlier version of this machine without the roller removed and have had no problems.

[jakani]

Re: ricoh aficio mp w2400 , black mark at end of paper

I work on these, and the first thing I would do after a quick fuser roller inspection is pull the drum unit from the machine and inspect it. Seal or blade maybe. As mentioned, drum drive could also be affected by a loose allen screw.

i thank you very much
i found that there is black marks on the FUSING CLEANING ROLLER , can i just clean it or i have to change it ?

another thing those black marks doesn't appear on the paper every time the customer prints just sometimes !

[mikadonovan]

Re: ricoh aficio mp w2400 , black mark at end of paper

I work on these, and the first thing I would do after a quick fuser roller inspection is pull the drum unit from the machine and inspect it. Seal or blade maybe. As mentioned, drum drive could also be affected by a loose allen screw.

[jdzr]

Re: ricoh aficio mp w2400 , black mark at end of paper

I would look for anything that would allow the paper to lift off of the transfeer/detack assembly such as the detack shutting down or even a speed control problem that would allow the paper to overfeed. Also if the paper should stall as it is going through the fuser it would create the same effect but you really should get an error code for this one. But again make sure that drum is not stalling.

[Dumus]

Re: ricoh aficio mp w2400 , black mark at end of paper

Transport ......
Chain, sprockets or one of the transport gear.
See if drum constant spinning or stopped at some point.

[jakani]

Re: ricoh aficio mp w2400 , black mark at end of paper

can you post a sample copy, what do you mean mark, is it a dot or a line?

i took some pictures of a printed paper that gave me same problem , a lady who makes copies on that machine told me that the black marks doesn't appear every time just when she makes lot of copies or when they print a long paper ,

IMG_20150410_103943.jpg

IMG_20150410_103947.jpg

IMG_20150410_103957.jpg

If the machine has been taken apart and put back together there is a chance the drum is nicked and damaged. Very easy to do on these machines when sliding the developer unit back into the machine.

it's been a time since it's been installed without giving any problem , i think it's something else !

[alliance1]

Re: ricoh aficio mp w2400 , black mark at end of paper

If the machine has been taken apart and put back together there is a chance the drum is nicked and damaged. Very easy to do on these machines when sliding the developer unit back into the machine.