Canon C1 4 color dots across page

[teckat]

I understand that guide,
No I am aware of that and its not warped and what it is pushed in very slow and deliberate.
Top and bottom .
This is a pit that looks as if it was an arc.
But just shoot me.
SHIT

even if u push in the corona very slow/ for some reason it rises up and hits drum/ & replaced guide over ten times already /

primary blocks can have ARC marks/ inspect

[Penvy]

This ones just kicking my ass I will inspect carefully top and bottom carona's
the old drum had them too
Brand new drum.SHHHHITTTT.

Been doing this a long time and by far this C1 just is the worst in overall design
Great color, slow but really beautiful color match
but just a real POS to keep running.

Canon really messed up with this one
Just too easy to break on its own.

the best I have seen is 60K before meltdown

The top guide is very secure and little movement
The bottom one just did not feel any contact.

[SCREWTAPE]

I hear ya on the C1.

Wait till work on the Advance models.

You will love it.

[Penvy]

Lets review this clusterF of a mach

New prim and grid 5K ago
New pre wire 5K
Dev restarted and very clean
Clean toner path tubes to the hopper
Even pulled the doctor blade inside Gap to 80Lb Business card paper for proper brush
Clean ATR and DEV assy

HV prim 999
Grid 464

Inst-4 for Dev
NewITB and cleaned rollers and cleaning rollers
new drum w/all new seals and cleaning blade

Reset Drum
printed full p5 color to get Dev dens
no errors
very careful on install of prim and pre

ITB reset
DFC
Dev inst-4
drum potential
very clean on inside pathway and frame
I just dont see how the carona slide very slow install even touched the drum
Just this little pin hole with the 4 dots on the print

Somewhere this drum got a spike from somewhere
What am i missing other that another new drum

[teckat]

if u work for an authorized dealer, call Canon tec. support>explain issue of pin hole in Drum, document your findings with copies & test prints & copy of service log. They will issue a new Drum, but they will recommend u replace all four developers.

I used to Call a friend in Canon Engineering, but he has since left. I will call them tomorrow to see if I can get some more info on this pin hole dilemma.


<High Primary corona output can cause a pinhole in Drum>

[Penvy]

I am betting on the high prim out spike.
The svc mode1 shows 999 prim and 464 grid
I cked for warping on pre and nada
I cked for any arc nada
funny though, is almost near the same dots on the old drum

The Dve units have not even gone 80K
500k is what their said to go.

What I do know is that there was nothing to cause a ding
sliding in the caronas very slow and keeping them straight.

I did get that 2" band across from the Y a few times where the print was rough
But that only happened 2x on the new drum


This Mach did mostly full 11X17 bleeds duplex booklet
Business cards.

for these problems to come up that early is really bad.


So what?

[worthy67]

Hi Penvy

You have my sympathy we have had the same proble on a couple of our machines that had been blitzed new dev assys primary corona , filters, ITB belts ect new drum probably done 2-3k in then the dots appeared.
Replaced the drum again and now its been fine.
It looks like a fine pit in the drum.
We have got about 10 C1s in the field some run sweet but others are pigs you only have to walk past them and they fall over.
We get lots of E020 faults all pointing to the patch sensors under the drum had to do a DC CON clear on one to get round the problem.
It seems like you have to really spend a lot of money on them to keep them runnng.
We have one customer with over 1.2 million copies on their machine we did a costing exercise on it and found we had spent £47,000 on parts and toners but not including labour in under 3 years !
Took in about £52k about £5 k profit in 3years for all the time and effort i dont think its worth it .

Hey i'm not a bitter and twisted C1 engineer !

Hope you get it sorted bud

[Penvy]

Thanks for the shoulder,
I have to get this running anyway,

The Dev units are next
All for a mach that has less than 80K

[SCREWTAPE]

Developer never lasts no more than 70 to 80K. But then again customers never print 5% ratio.

[Penvy]

Exactly, 5%
I just cant get over how hard Canon pushed this POS on customers
AND then try to train tech's to fix what pans out to a re-design of the entire system starting with the DEV units being just too small.

Dont get me wrong, the 1 drum idea is what they were looking at for over all color match and saturation
The "new" toner is a retro of the old Phaser wax bars & 1 drum that has wonderful deep color for a tabletop digital 4 color. many moons ago.

The image was really great but fragile and heat sensitive.

remember those?
well the poly/wax 5.5 micron 'New" toner in the basic CYMK is standard in a lot of the newer copiers.
The poly adds stability and can be micro pelitized to that 5.5 m for a lower toner heat setting and give the finish sheen to the semi/or full coated paper to look as it was photo
quality and match pantone very well, even in the green/blue area where most copiers can get into a limited spectrum range.

Using the Fiery 1 software has now generalized the color match within most servers and now can give designers a more exact color repro.
that ever before

But what the F do I know!