White Vertical Streaks on blue prints

[Polarbear]

Re: White Vertical Streaks on blue prints

Hi Everyone,

Any help would be greatly appreciated. I'm getting white vertical streaks on blue...please see attached image.

Thanks in advance!

[ATTACH=CONFIG]43169[/ATTACH]

Definitely looks like clumps in the dev unit. +1 to all the previous comments in this regard.
Also could not hurt to remove the laser unit and clean all its optics as well, although that will probably only bring back some of the overall solidity, and definitely not cure the white lines.

When we get that on devices that have not made yield, we would dump the dev out through a fine sieve, to trap the clumps, then run a piece of paper between the mag roller seals to move all the remaining clumps out. If done correctly, it gives you your print quality back.

If it has done yield, replace the dev unit.

[Kwaku01]

Re: White Vertical Streaks on blue prints

Definitely looks like clumps in the dev unit. +1 to all the previous comments in this regard.
Also could not hurt to remove the laser unit and clean all its optics as well, although that will probably only bring back some of the overall solidity, and definitely not cure the white lines.

When we get that on devices that have not made yield, we would dump the dev out through a fine sieve, to trap the clumps, then run a piece of paper between the mag roller seals to move all the remaining clumps out. If done correctly, it gives you your print quality back.

If it has done yield, replace the dev unit.

Thanks for your post. I've done as recommended..."we would dump the dev out through a fine sieve, to trap the clumps, then run a piece of paper between the mag roller seals to move all the remaining clumps out", but streaks are still coming on prints after. I guess would have to replace the dev unit. Also, I forgot to mentioned that the black is missing on prints. Please any suggestions on the missing black on prints?

Thanks
J

[slimslob]

Re: White Vertical Streaks on blue prints

A sheet of paper will not correctly clean the doctor blade. It requires the use of a doctor blade cleaning tool. You can find the order number in the Pro 1357ex service manual.

[Oze]

Re: White Vertical Streaks on blue prints

Time to call in a REAL tech mate..!!!
You're not I.T. trying to do the customer a favour and fix it for them because the machine's on Do and Charge?

[Polarbear]

Re: White Vertical Streaks on blue prints

Thanks for your post. I've done as recommended..."we would dump the dev out through a fine sieve, to trap the clumps, then run a piece of paper between the mag roller seals to move all the remaining clumps out", but streaks are still coming on prints after. I guess would have to replace the dev unit. Also, I forgot to mentioned that the black is missing on prints. Please any suggestions on the missing black on prints?

Thanks
J

What happens if you print the test print grid in sp mode? Do you then get all the colours?


Sent from my SM-G950F using Tapatalk

[slimslob]

Re: White Vertical Streaks on blue prints

I forgot to mentioned that the black is missing on prints. Please any suggestions on the missing black on prints?

Frequently caused by the black transfer roller in the ITB assembly not being lifted when the ITB assembly is locked tn placed.

[Kwaku01]

Re: White Vertical Streaks on blue prints

Frequently caused by the black transfer roller in the ITB assembly not being lifted when the ITB assembly is locked tn placed.

Not to worry...it's fixed thanks.

[redzventures]

[mikadonovan]

Re: White Vertical Streaks on blue prints

Not to worry...it's fixed thanks.

Care to share what you did to resolve these problems? Common courtesy.

[Oze]

Re: White Vertical Streaks on blue prints

Hi Everyone,

Any help would be greatly appreciated. I'm getting white vertical streaks on blue...please see attached image.

Thanks in advance!

[ATTACH=CONFIG]43169[/ATTACH]

Always fills me with suspicion when a "Tech" calls Cyan "Blue"

[Coptech]

Re: White Vertical Streaks on blue prints

Always fills me with suspicion when a "Tech" calls Cyan "Blue"

No kidding! If you don't the real names, singing 'A little ditty, bout black and cyan" makes no sense at all.

[Ricoh-ono]

Re: White Vertical Streaks on blue prints

If the laser lens has been cleaned then it is definitely blockages in the development unit. I found a way to remove the blockage but it requires you to have a .5mm feeler gauge.

[slimslob]

Re: White Vertical Streaks on blue prints

If the laser lens has been cleaned then it is definitely blockages in the development unit. I found a way to remove the blockage but it requires you to have a .5mm feeler gauge.

Ricoh actually has a tool for cleaning doctor blade. A2949560 Paper Dust Cleaner - 5pcs/set. It not only cleans the gap, but has a tab that pops up to scrap the back of the doctor blade. For instructions on how to use, see the Pro 1357EX service manual. Works on most machines. Also it is Mylar and will not scratch the development roller t he way a feeler gauge might.

[Ricoh-ono]

Re: White Vertical Streaks on blue prints

Ricoh actually has a tool for cleaning doctor blade. A2949560 Paper Dust Cleaner - 5pcs/set. It not only cleans the gap, but has a tab that pops up to scrap the back of the doctor blade. For instructions on how to use, see the Pro 1357EX service manual. Works on most machines. Also it is Mylar and will not scratch the development roller t he way a feeler gauge might.

With the color development unit there are small chunks of plastic that cause the blockage. The mylar tool will only move it out of the way temporarily. The way I found to effectively clean it is to loosen the doctor blade, rotate the mag roller, vacuum off the blocked section, tighten the doctor blade using the .5mm feeler gauge to set the gap.