Canon IRC 3380i Streak in paper track across black, but it seem odd.

[Desert Rat]

This is my first look at one of these models. It makes a nice copy except for the light streak, (low density)
that runs left to right as the paper exits (LTR).
What looks odd is that in auto color it looks like it is using the black drum&dev to do the
black. I thought most machines would mix the black.
I ran a page on each color and the black was the only one with the light streak.
I ran the P-Print and I could see the streak. I ran the grid pattern from test and
it did not show. Must have mixed that color cause it does not look real dark.
Cleaned the laser print heads no change. The black drum only has about 30K
on it I believe. The transfer belt looks normal, clean.
I did not have a lot of time to spend yesterday but will make time
next week.

Is this a pretty good machine?

Thanks

DR

[charm5496]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

it is a good unit when ran correctly. the drums are prone to clumpling which cause the light streaks and lasers get dirty just because they are under the drums. you should not have a problem servicing it at all.

[Desert Rat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

Charm5496,
Thanks for the vote of confidence. Is there anything that can be done for this, clumping?
My guess is the clump is in the dv section of the drum, causing toner starvation.
Would this be a clump of toner?
I also noticed a gouge in the red roller of the fuser unit. I have not looked through the
book very much yet, but can this fuser be rebuilt?

Thanks

DR

[blackcat4866]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

I don't know if this will help you, but it might.

I haven't seen this particular Canon, but seen plenty of machines that picked up foreign matter into the developing unit. It was particularly common on Sharp Whale/Apylon color machines. These were sealed AIO units so there was no practical way to disassemble them. I'd take a business card and run it along under the edge of the S-blade (or doctor blade, if you like that name better). Be careful not to tear off a piece of your card, or it will be worse. Roll the mag roller backwards 1/4 turn (opposite of the normal direction of rotation). Repeat one more time.

Keep in mind that this does not remove the foreign matter from the developing unit. You're just freeing it from the S-blade. It will most probably find it's way back again eventually.

Sharp eventually wrote new firmware to reverse rotate the mag roller 1/4 turn at the end of each copy cycle, and it did work to free up the foreign matter from the S-blade.

According to Precision the AIO unit is rated for 70K, but only experience will tell you if they'll last shorter or longer. Most likely they're chipped, and you'll get locked out at 70K.

What do you think? =^..^=

[Desert Rat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

Thanks BlackCat4866,

Good suggestion, I did not have a lot of time the other day but it is on my list for next week.
I was thinking pretty much the same thing as far as the developer unit.

Thanks Canon Tech
It is nice to know that it can be taken apart and put back together and work.
Modular is ok for some things, but I prefer to be able to see inside and repair
the higher dollar stuff.

The drum count was 90% gone at 70K I think for the colors, the black was below 50%.
I will double check the numbers. I also need to read through the manual just to see
what's going on with this machine.


DR

[Tricky]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

can this fuser be rebuilt?

But use a genuine Canon fixing film assembly

FM3-1992-000 FIXING FILM UNIT 100V
FM3-1993-000 FIXING FILM UNIT 120V
FM3-1994-000 FIXING FILM UNIT 230V

[Desert Rat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

Skeynet,
Thank for that posting. I never knew Precision roller had video's on rebuilds.
I will be looking at this again later today.

Thanks

DR

[Desert Rat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

Canon Tech,

I am not sure how to get this drum/developer unit apart.
I see four screws on the top that look very tempting to remove
to get to the drum.
I also see two screws in an aluminum bar on this unit.
Any chance you could give me a clue as to where to start
and what to watch out for?

I did replace the fixing film. Nice I like it. That video was very helpful.
Thank you Skynet.

Thanks


DR

[teckat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

[QUOTE=Desert Rat;276683]Canon Tech,

I am not sure how to get this drum/developer unit apart.
I see four screws on the top that look very tempting to remove
to get to the drum.
I also see two screws in an aluminum bar on this unit.
Any chance you could give me a clue as to where to start
and what to watch out for?

I did replace the fixing film. Nice I like it. That video was very helpful.
Thank you Skynet.

Thanks

iR3380 install

DOUBLE CLICK > FOR FULL SCREEN

<font size="4"><strong>

[Desert Rat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

Teckat & Canon Tech,

Thanks for that video and the clues to removing the drum from the developer
unit. I will put both of these to use today.

Thanks again

DR

[Desert Rat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

Canon tech,
Thank you for the pictures, I just finished. I did not take the top off it seemed happy being
glued on, but I did run a business card under the doctor blade, turned the mag roller backwards 1/4 turn and
the blank streak moved to a different spot. So I turn the mag roller again the same amount gave it
an easy tilt and it moved to the very edge where most customers do not print. Other wise it is making a
good copy.
A couple of other things tho:
1) I put 11X17" paper in tray 2 about 10 sheets. It came up, but the display still said
it was empty. I put 10 more sheets of paper in it and it worked normally.
This unit will be sold and I am doing the service on it for another business.

2) I have been looking for a setting to display the drum life, but have not found it yet.

Seems like a nice machine.

DR

[Desert Rat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

Canon Tech,
Thank you for all your spot on assistance. The business selling this unit
wanted to set it up as close to the IRC3200 as possible. His customer
was able to see the drum life under the consumable display.
But if this unit can go upto 200% of rated life, then I would advise
him against that, simply because we all know the customer will
call in and ask for the drum change.
Once it reaches 100% will it give a message? The book said
that it blows the fuse on the back on the unit. Has anyone
tried to replace the fuse at 100%? Just to keep the message
from showing up.

Thanks

DR

[teckat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

This device does not have memory in the drum unit so, when a new drum is mounted, the drum life counter value stored in the printed needs to be reset.

The device detects old and new drum units, so that the counter can be reset.
The detection is performed by the DC controller CPU monitoring the fuse detection signal.
When the CPU detects that a new drum unit has been mounted, it outputs a fusing signal and blows the fuse on the drum unit.
At the same time, the drum life counter resets to 0.

Do not replace drum units with new ones unnecessarily, in order to check function operations during service,
etc. The device blows the drum fuse as soon as it detects a new drum unit and resets the drum life counter to 0.
Even if the old drum unit is replaced immediately, the drum life counter will increment as a new drum unit.

WHEN WORKING ON PRINTER TO INSPECT CQ ISSUES
Service Mode:
COPIER > FUNCTION > INSTALL > AINR-OFF
Invalidates drum initialization that is performed when a new drum unit is installed. Also, the fuse is not blown, as it would usually be after drum initialization is completed.

This mode would be used to replace a drum unit temporarily in order to check image quality, for example when trying to trace the cause of a problem.
0: Initialization carried out for new unit. Fuse blown. (Default)
1: No initialization for new unit. Fuse not blown.

Further, this service mode should be set to [1] only when necessary for service. After the service is complete, the setting must always be returned to [0].

[teckat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

Detecting the Life of the Drum
The device estimates the degree of drum wear based on the following two types of data and computes the drum life.
- time length of drum rotation + time length of primary charging
- number of prints
The DC controller refers to the foregoing data when the power is turned on or when the front door is opened/
closed; as a result, if any of them is above a specific value, the DC controller notifies the drum life notice
message to the main controller.
The following shows the relationship between drum life and message:
Message Type-----Message Description-----------Drum Life Value
Drum life---------"Replace the drum unit. (Black)"-----110%
-----------------"Replace the drum unit. (Yellow)"----110%
-----------------"Replace the drum unit. (Magenta)"--110%
--------------------"Replace the drum unit. (Cyan)"---110%

Even when the device has displayed a drum life warning message, printing may continue, but print image quality will deteriorate.
Service Mode:
COPIER > OPTION > USER > P-CRG-LF
0:The drum life notice display is not done (default).
1:The drum life notice display is done.
The following messages are displayed on the touch panel when setting it to "1".
Message Type-----Message Description------Drum Life Value
Drum life notice------"Prepare a new drum unit. (Black) " ----95%
-----------------------"Prepare a new drum unit. (Yellow) "---95%
-----------------------"Prepare a new drum unit. (Magenta) "-95%
--------------------------"Prepare a new drum unit. (Cyan) "--95%

[teckat]

Re: Canon IRC 3380i Streak in paper track across black, but it seem odd.

I had 23 of these 3380's in one building to service at a in house account-

there isn't one thing u can tell me about this model that I have not seen since it first came out/