I have a Kyocera 4551ci. All the colors look good except black. There's a wide white band 13mm wide. I've replaced drum, PCR and developer. Kinda of at a loss. Any help is appreciated. See examples below.
4551y_Page_1.jpg
4551y_Page_1.jpg
-
Adversity temporarily visits a strong man but stays with the weak for a lifetime. -
Re: Kyocera 4551ci - wide white band on black only
The examples I posted are the internal color test charts. It's only doing it on black and the K drum, DV unit and PCR are new. Just installed. I'm thinking it may be the laser slit glass but I'm not sure how to clean it. I'm looking for it in the manual. Don't see it yet.Adversity temporarily visits a strong man but stays with the weak for a lifetime.Comment
-
Adversity temporarily visits a strong man but stays with the weak for a lifetime.Comment
-
Re: Kyocera 4551ci - wide white band on black only
Black laser polygon mirror?Comment
-
Comment
-
Re: Kyocera 4551ci - wide white band on black only
Something is obstructing laser path. You have to find what. Maybe a some debris or piece of paper or even dead cockroach.A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.Comment
-
Let us eat, drink, and be merry, because tomorrow we may die!
For all your firmware & service manual needs please visit us at:
www.copierfirmware.co.uk - www.printerfirmware.co.uk
​Comment
-
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.Comment
-
Re: Kyocera 4551ci - wide white band on black only
Could be. I'll be at their office bright and early in the morning. It's easy enough to remove the metal cover over the slit glass where the laser cleaner arm resides. For good measure, I just uninstalled the laser unit from a machine in the shop. I had never done that before. Wasn't that bad.Adversity temporarily visits a strong man but stays with the weak for a lifetime.Comment
-
Re: Kyocera 4551ci - wide white band on black only
You're probably right. I thought it was strange that the the void area had well defined edges. If it was a dead roach or some other obstruction, it wouldn't be so precise of a void area. I'll bet you that the cleaning pad is exactly the width of that white band. I think you nailed it. We'll find out tomorrow.Adversity temporarily visits a strong man but stays with the weak for a lifetime.Comment
-
Comment
-
Re: Kyocera 4551ci - wide white band on black only
+1 on the stalled laser slit glass cleaner. IIRC the cleaner is part of the laser unit itself, and not purchasable separately. You will need to entirely remove the laser unit to repair or replace this.
The thing to watch for when your manually driving the cleaner through its travel, is that when it reaches the end of it's travel there is some spring pressure holding the cleaner against the threads. If the spring pressure is inadequate the cleaner will cross-thread and jam or never catch and stall at the end. I have stretched those springs a bit, to make sure they're pressing back at the end of the travel. Also clean as much dirt out of the worm and use white grease to lubricate it.
I know it's counter-intuitive to grease it when the grease can collect dirt, but it does need the grease. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
-
Re: Kyocera 4551ci - wide white band on black only
I don't think I've ever had a problem with a machine that someone didn't have the answer to. Let's keep the streak going.
Last edited by BillyCarpenter; 12-01-2020, 01:14 AM.Adversity temporarily visits a strong man but stays with the weak for a lifetime.Comment
-
Re: Kyocera 4551ci - wide white band on black only
Is it a particularly dirty environment? =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
Comment