canon irc 3380 double image

[Guest]

hai guy`s,i have problem on irc 3380 , double image...If i print service mode>test>type 15,the colour not same level...Got solution to the fix it..

I already change the transfer belt...but still same.This problem came out after i do the cleaning the main unit.....


Thanks,

vick

[mrfixit51]

Re: canon irc 3380 double image

So we can better understand your problem, I suggest your print out test print 6, and scan that image and attach it to your next message in this thread...

[charm5496]

Re: canon irc 3380 double image

hai guy`s,i have problem on irc 3380 , double image...If i print service mode>test>type 15,the colour not same level...Got solution to the fix it..

I already change the transfer belt...but still same.This problem came out after i do the cleaning the main unit.....


Thanks,

vick

well check where you cleaned? Looks like you might have induced a problem with the machine. Also when you install a new belt you should really put a new cleaner blade on as well. Installing the old one a new belt is not a good idea.

[zoraldinho]

Re: canon irc 3380 double image

post a pic.

[JDS]

Re: canon irc 3380 double image

Hopefully you also cleaned the itb rollers before you replaced the itb belt. Try that. Another thing to try is clearing your DCON but remember to save your settings before clearing. This was a common issue on iR3200 models. Finally, the itb drive motor maybe the culprit.
Attach a sample too like MrFixit suggested. Good luck.

[mrfixit51]

Re: canon irc 3380 double image

I have never disassembled a 3380 ITB. I have a bad one in my car, I may have to try to disect it before I toss it...

[teckat]

Re: canon irc 3380 double image

Hopefully you also cleaned the itb rollers before you replaced the itb belt. Try that. Another thing to try is clearing your DCON but remember to save your settings before clearing. This was a common issue on iR3200 models. Finally, the itb drive motor maybe the culprit.
Attach a sample too like MrFixit suggested. Good luck.

forget about PG15's on a double image issue- u use PG6's

i have never removed the ITB belt on a 3380/ u are asking for trouble/
Canon does not even recommend to take it apart

U probably have issues with both the lock levers and compression springs

Inspect & replace ITB BLADE>do not dry wipe
Lubricant Lubrication; e.g., ITB Cleaning Brade
Fluorine graphite -Tool No: TKN-0480

& Replace the ITB Unit


Image displacement correction is different on this model/from the 3200 & 5180 series-

This machine performs the following 3 types of control to correct displacement of color possibly caused by
differences among components of its laser scanner unit and drum unit:
1- main scanning write start correction
2- sub scanning write start correction
3- main scanning magnification correction control
The DC controller forms patterns for detection of color displacement for individual colors, and uses the color
displacement sensor to detect the position of the patterns.
The DC controller computes the degree of displacement with reference to the position of the pattern detected; based on the result, the DC controller or the main controller corrects the displacement for individual colors.

The machine writes a main scanning position detection pattern of each color on the ITB, and compares the measurement value (A) and the reference value (B) stored in the DC controller to find out the degree of color displacement (C). If displacement is detected in main scanning direction, the machine changes the timing at which writing starts in main scanning direction.
ITB_A.JPG

The machine forms a sub scanning position detection pattern of each color on the ITB, and compares the
measurement (A) against the reference value (B) stored in the DC controller to detect the displacement (C) of each color. If the result indicates the presence of color displacement in sub scanning direction, the machine varies the timing at which writing starts in sub scanning direction.
ITB_A_SUB SCAN .JPG

The machine forms a main scanning magnification detection pattern of each color on the left and right edges of the ITB. Thereafter, it uses the difference (C) between the measurement (A) taken at the left edge and the measurement (B) taken at the right edge to detect the magnification of each color. If there is a difference in main scanning direction, the machine increases the number of pixels in main scanning direction.
ITB_A B C.JPG
Main scanning magnification correction control computes color displacement correction values based on the partial magnification adjustment values for the image main scanning direction. There are eight blocks for each of the four colours, Y, M, C and Bk, giving a total of 32 values, which are programmed in the service mode when the device is installed.
Whenever the laser scanner unit is replaced, all 32 of the partial magnification adjustment values for the image
main scanning direction (which appear on a label affixed to new laser scanner units) must be entered into the following service modes, otherwise color displacement will occur.
COPIER > ADJUST > LASER >FSLUT-Y 1 to 8 correction values for partial magnification correction Y blocks 1 to 8
COPIER > ADJUST > LASER >FSLUT-M 1 to 8 correction values for partial magnification correction M blocks 1 to 8
COPIER > ADJUST > LASER >FSLUT-C 1 to 8 correction values for partial magnification correction Y blocks 1 to 8
COPIER > ADJUST > LASER >FSLUT-K 1 to 8 correction values for partial magnification correction K blocks 1 to 8
Also, when the DC controller circuit board is replaced, the above values should be entered as per the details on the service label or on the P-PRINT label.

[vick]

Re: canon irc 3380 double image

guy`s tq very much for all the info....i will try to apply all suggestion and will give the feed back soon...

tq again..

vick

[mrfixit51]

Re: canon irc 3380 double image

I have never removed the ITB belt on a 3380/ u are asking for trouble/
Canon does not even recommend to take it apart

U probably have issues with both the lock levers and compression springs

I actually gutted the one I replaced last Friday today in the shop, I had a little time on my hands. Our advice is rock solid,,, it is an extremely involved process to get the belt off. It is far harder than the simple 3200/4580 ITB belt. And there is no part number for the belt or any of the internal components. So,, when in doubt,, toss it out...

[vick]

Re: canon irc 3380 double image

20110825051314_00002.pdfhai guys,my double image problem not settled and now i face new problem every time open and close the toner container...i attach few sample image ...


tq

vick

[teckat]

Re: canon irc 3380 double image

[ATTACH]11473[/ATTACH]hai guys,my double image problem not settled and now i face new problem every time open and close the toner container...i attach few sample image ...


tq

vick

u now have a bigger mess/
your PG10 black is missing/ if it is missing on ITB & DRUM -
u need to check the cable on BLK CLUTCH OR EVEN replace the Black Developer sleeve Clutch-FM2-3581-000

it also looks like u have a BIAS ISSUE-
BIAS HIGH VOLTAGE PCB ASSY=FM2-5548-000
CABLE, HIGH VOLTAGE CONNECTING=FM2-9437-000

U need to replace the ITB UNIT=FM2-5522-000



Best bet CALL for a Canon Trained TECH

[its_just_a_copier]

Re: canon irc 3380 double image

Check the bias spring in the front of the Secondary Transfer Roller unit. It can get bent and cause double images.