Canon C3220 Offset image

[repairman]

C3220 with offset image in black or color modes.
if you open and close the fuser section it resets to normal for a day or so then gradually gets worse.
I have not been out to this copier yet due to distance and another company asking us to help. So before we drive 50 miles thought I would see if anyone has seen something that may cause offset imaging. Worked on many over the years and have not had one with this symptom.

They are telling me they have replaced:
ITB
All drum units

[HP:guy]

Re: Canon C3220 Offset image

Print out a P-print then run a Dcon clear and reset all the settings on the print list.

[repairman]

Re: Canon C3220 Offset image

Sounds good. will do.
we may pack a parts machine in the van to this call. Have you seen any drive related failures causing offset?

[HP:guy]

Re: Canon C3220 Offset image

No if you run and auto gradation you will see the colors don't line up properly.
After the dcon clear they should line up.
How bad is the offset?

[repairman]

Re: Canon C3220 Offset image

He said it looked about 2 or 3 mm

[teckat]

Re: Canon C3220 Offset image

Sounds good. will do.
we may pack a parts machine in the van to this call. Have you seen any drive related failures causing offset?

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DO NOT do a DCON Clear > until u Print out the P PRINT SETTINGS > u will need to reload DCON settings

check if offset in MAIN SCAN or SUB-SCAN or both

SUB SCAN.JPG
MAIN SCAN.JPG
read this pdf
TP03-1.pdf

[repairman]

Re: Canon C3220 Offset image

Thanks Tekat that was more than helpful.

I will report back on this. The fact they can open then close the fuser section and it works for a while has me leaning to the itb drive and the dcon reset cant hurt for sure.

[teckat]

Re: Canon C3220 Offset image

Thanks Tekat that was more than helpful.

I will report back on this. The fact they can open then close the fuser section and it works for a while has me leaning to the itb drive and the dcon reset cant hurt for sure.

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opening & closing fuser is only doing a re-set of Patch Image Alignment on ITB sheet

temp fix> this opening & closing (constant pulling out / pushing in of fuser can damage connection

[Simons]

Re: Canon C3220 Offset image

Check the door specs and check that the patch sensor is clean and set to the door specs. If someone cleared out the system . They may not have got that value put back in ?

[repairman]

Re: Canon C3220 Offset image

sample images atached

dcon clear and reset factory values

full gradation adjust

Black copy mode and prints are good

color mode and ps test print shows offset

I will be going back out in a couple days. It has a c2 imagepass and its password protected. should be able to get in when i return

[teckat]

Re: Canon C3220 Offset image

sample images atached

dcon clear and reset factory values

full gradation adjust

Black copy mode and prints are good

color mode and ps test print shows offset

I will be going back out in a couple days. It has a c2 imagepass and its password protected. should be able to get in when i return

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pull out the LASERS and do a Manual adjustment to set their home position
adjustment is at end of tech pub below

READ
TP03-1.pdf

make sure to do your FULL AUTO GRADATION for Printer/
then do the calibration for imagePass C2
do u have the Kodak Gray Scale or a Densitometer




Calibrate the Fiery RIP. Enter calibration mode on copier through Printer, Settings, Functions, calibration, enter Fiery.1 for the password and press OK.

If you do not have a densitometer choose the Standard Color Cal Measurement page method under set-up. Use a clean Gray Scale positioned in the top center of the letter size portrait area of the platen glass.
Press Calibrate and Yes to print the Measurement Page.
Place printed page over the Gray Scale and press Yes and then done to measure.
After successful measurement press Yes to overwrite and to it affecting all users.
-Print out a Test Page and Configuration Page. Under Printer, Print Pages, Test Page the Configuration. After verifying print quality place these with the COMPLETED Service Log attached to the machine.

[Canon.Tech]

Re: Canon C3220 Offset image

This is such a common fault on this model. The transfer belt slips caused by leaking toner (usually from the black drum) all you’ll need to remove the transfer belt & clean the INSIDE of it & also clean the large rubber drive roller, make sure you clean both these items well., then do a DC CON CLEAR ONLY.
The machine will correct it’s self after either a full auto gradation or a long colour copy run, or as you are doing open & closing the left fuser draw.

[repairman]

Re: Canon C3220 Offset image

Thanks Teckat. I should have the greyscale. Get back on this

Canontech: The ITB has been replaced and dcon / gradation done as mentioned earlier but thanks

[Simons]

Re: Canon C3220 Offset image

I hope all your ITB bearings are good.

[teckat]

Re: Canon C3220 Offset image

Thanks Teckat. I should have the greyscale. Get back on this

Canontech: The ITB has been replaced and dcon / gradation done as mentioned earlier but thanks

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that Large metal ITB cover causes a lot of CQ issues> especially streaks

I take them off & throw them in the Garbage----have thrown away hundreds
leave small one on
but u need to connect other side of the varistor from small metal cover under leaf spring (because no screw hole available) ( not doing this will cause an error)

ITB_Varistor.jpg