[CQ] Opinion on CLC5151

[V-P]

I have a customer with a CLC5151 + H1 installed.
Machine has done approx 1 mill copies and still kicking.
Customer usually prints heavy coverage also on heavy media.
No major complaints except drums. Looks like drums die fast on this machine under their usage. Far far way of 60K as promised by Canon.

Right now machine tends to light the image (front part of machine).

Drum lifes (except magenta which is 120) are approx 200.

My question is: Can smth be done EXCEPT replacing drums ?

Apg-10.jpgpg-16.jpg

[teckat]

Drum Estimated Life is calculated by Canon at Image or Average Fill Ratio of 5%
/Media Size in use is LTR paper/Media Type in use is plain paper

Constant printing on Heavy Media puts a toll on the ITB Drive Motor M1/

check the image on the ITB Belt Assembly -testing it with HEAVY mode & Plain Paper mode ,if u find that the image is washed out on Heavy mode/ and OK on Plain mode
&
if your Copies and prints are washed out, when selecting the Heavy Stock mode setting. and your Plain paper is printing OK !

Replace that ITB Drive Motor M1/ Reason is the clock pulse in motor craps out when Heavy is constantly used over a long period of time/
Not a picnic to replace

[V-P]

Thnx Teckat for the answer !!!

Sadly it was another reason.

"FB6-2965-000" LEVER - LOCK was kinda in the breaking process.
This part has tension spring attached to it. Of course this lever-lock is made of plastic, so it has a tendency of breaking.
And I believe this was my case. That's why front part of image was not ok.
I don't have a spare one, but I am going to borrow similar part from CLC3200. I guess they should be the same.

[teckat]

iRC5185 is similar to CLC5151
u mean ITB front handle=Lever Transfer pressure /FB6-2987-000

inspect the inside two cams FB6-2986-000 that lock up ITB/
also check the spring loaded inside pressure arms- F/R
also inspect the rail ITB sits on / they can develop a crack

[V-P]

Here it is. Better view.

This is in the front part of the machine. The little shitty is made of plastic.

First it was difficult to understand. I kept printing PG-10, and the image was ok on the rear side of machine, and missing on the front side.
Than I removed ITB and I saw the image on the drums to be full. So I started inspecting these levers (handlers) and I saw the one with is in front of machine was almost broken.
"I mean the place where lever and spring get together"

So since we have 2 days off (Easters), I cannot order fast enough, and I need to borrow similar part from a CLC3200 / iRC3220. I hope they match.

Broken-part.jpg

[teckat]

Yeah' that's the one/ I meant to point out , my error on thinking of #10 in pic

[V-P]

I replaced with the same part (from iRC3220).

Now it is working fine. Tested both PG-6 & PG-10. Perfect result.

Only PG-16 was not so satisfying. "Light part is on front of machine - long edge".
I installed new drums inside.

I suspect primary roller on magenta.
What do you think ?

PG-10a.jpgPG-16a.jpgPG-6a.jpg

[teckat]

Remove the ITB Sheet > and inspect inside ITB if black spring loaded plastic holders of Primary rollers are damaged/missing or out of position

Also inspect the Secondary Transfer Internal Roller
position

run a PG5 Single color M Print

i never test using a PG16 ???

[V-P]

Do you mean this spring ?

spring.jpg

Also I run a PG-5 Magenta.
PG-5-magenta.jpg

[teckat]

That is the one !!!!


are u running these test prints on Plain Paper ??
Drum ground tab -
Check and clean the M drum ground tab located inside the front drum access cover.

Developer drive motor -
Test for motor operation in service mode: Copier/Function/Part-Chk/Mtr, Y=18, M=19,C=20,K=21

Re-seat connector J103 on DC Controller 2 Maisy pcb - (provides signals to developer motors), then run motor test again.

[V-P]

I didn't see your last relpy but from the previous one:

I removed ITB and checked the springs and the plastic holders. Everything ok.
I also switched both "spring & plastic holder & roller" of magenta and yellow.

Still the same situation. The issue is not there.

So now to your last reply: I am doing tests on plain paper.
Check and clean the M drum ground tab = done
Motor test = Ok

Magenta still the same

[teckat]

stop the M PG 5 Halfway on ITB/ does it appear washed out/ or is it solid


pull out the M Laser unit -look down in at dust proof M glass /inspect for M Toner dust on it

Laser.JPG

[V-P]

Thnx Teckat !

I did clean the proof glass for magenta and the other lasers.

Result is Perfect:
mag-03.jpg

I have attached also the PG-5 from black. As you see there is a lighter part.
It is on the rear side of the copier.
I did clean all the lasers. I did swap 2 black drums, and it was the same in both drums.

I know this is a minor issue, but if there is a solution, why not fix it ?

black-03.jpg

[teckat]

Check the contact brushes for the Secondary Transfer Roller for wear and check if bent out of position. The brushes are mounted to the internal rear frame of the machine

Check the Secondary Transfer Roller support springs- front/rear positions/are seated in their sockets correctly.
when was the last time u replaced this Assembly ??
Tech's have learned this the hard way/ they were only replacing the roller u can wipe down this roller so many times.


The static eliminator Starts Arching to the ITB belt. & can cause a light banding in paper feed location-
The static eliminator is part of the secondary transfer assembly.
Secondary Transfer Assembly (FM2-5375-000)

Line.JPG

[V-P]

Thnx Teckat !

So:

Contact brushes were ok. No sign of wear.
Support springs were ok.
These 2 I have previously check. I do check them regularly.

To be honest this part has been replaced only twice.
And yes, I have cleaned the roller a lot of times.
I have cleaned some parts (attached the image)

transfer.jpg

Guess I need to put a new secondary transfer to know for sure.

Don't want to question your experience but I have a small doubt though:
The line on your image is more like a fine distinct line, where my line is more like a band.
Plus - why does it show only on black ?