I have a Canon IRC3380 that has blurry copies on the top half of the copy only, bottom is focused. I actually have the same problem on a Canon IRC3220. We have replaced the transfer belt units in both but still the same issue. Does anyone have a suggestion?
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Re: irc3380 top half of copy is blurry
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First on 3380--Remove the noise dampening pad for the Registration sensor flag
On both PRINTERS >Try clearing out the Registration Data stored in the DC Controller. To clear the data, perform the following.
Enter Service Mode: Level 2 >
Copier > Function > Clear > Reg/Clear. Highlight Reg/Clear and press OK.
After performing the clear, reboot the machine and perform a Gradation Quick Adjust and then a Full Gradation adjust.
(Following the instructions above could prevent you from having to perform a DC-CON clear, and inputting all DC-CON values from the door label.)
on 3380---Clean the patch sensors
&
on 3380---do a Auto Color Mismatch Correction
Addition Functions > Adjustments and Cleaning > Auto Color Mismatch Correction
++Check that Secondary Transfer Roller Position
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on 3200-
Check External Secondary Transfer Roller Position & Rotation
Sec.Trans Ext_.JPG
& check your position of the Pattern Reader Assembly
PATCH READ.JPGPatch Salt sensor 3.JPGPatch Salt sensor 2.JPG
TOP= u mean rear of printer on paper feed exit direction or on front (operator side)
see pic 
is issue on copies & prints ??
all colors ??
post a PG10 --
Post a PG 6 GRID test print-
DIRECTION.JPG
on 3200=
Re-aligned all four Laser Assemblies
After aligning all Laser Assemblies it may be necessary to initiate a fine adjust to achieve proper alignment. To do this start with the Black Laser Assembly. Move the alignment gear one tooth at a time and then let the machine perform a registration adjustment. Usually, you will have to perform this fine adjustment a few times until the registration is close enough for the machine to correct it automatically.Last edited by teckat; 09-04-2013, 09:32 PM.**Knowledge is time consuming, exhausting and costly for a trained Tech.**
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Re: irc3380 top half of copy is blurry
We did all the above on the 3380, still nothing. Havent been back out to the 3200 yet. The image is shifted up instead of side to side, so on the 3380 you can see magenta slightly above the text. On the 3200 you can't differentiate what color is the issue. I am waiting to get test pages from the tech today and I will post.Comment
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Re: irc3380 top half of copy is blurry
------------
First on 3380--Remove the noise dampening pad for the Registration sensor flag
On both PRINTERS >Try clearing out the Registration Data stored in the DC Controller. To clear the data, perform the following.
Enter Service Mode: Level 2 >
Copier > Function > Clear > Reg/Clear. Highlight Reg/Clear and press OK.
After performing the clear, reboot the machine and perform a Gradation Quick Adjust and then a Full Gradation adjust.
(Following the instructions above could prevent you from having to perform a DC-CON clear, and inputting all DC-CON values from the door label.)
on 3380---Clean the patch sensors
&
on 3380---do a Auto Color Mismatch Correction
Addition Functions > Adjustments and Cleaning > Auto Color Mismatch Correction
++Check that Secondary Transfer Roller Position
--------------------------------------------------------
on 3200-
Check External Secondary Transfer Roller Position & Rotation
[ATTACH=CONFIG]21946[/ATTACH]
& check your position of the Pattern Reader Assembly
[ATTACH=CONFIG]21944[/ATTACH][ATTACH=CONFIG]21943[/ATTACH][ATTACH=CONFIG]21945[/ATTACH]
TOP= u mean rear of printer on paper feed exit direction or on front (operator side)
see pic
is issue on copies & prints ??
all colors ??
post a PG10 --
Post a PG 6 GRID test print-
[ATTACH=CONFIG]21942[/ATTACH]
on 3200=
Re-aligned all four Laser Assemblies
After aligning all Laser Assemblies it may be necessary to initiate a fine adjust to achieve proper alignment. To do this start with the Black Laser Assembly. Move the alignment gear one tooth at a time and then let the machine perform a registration adjustment. Usually, you will have to perform this fine adjustment a few times until the registration is close enough for the machine to correct it automatically.
See attached test pages on the IRC3380. We did the above suggestions and this is on all color prints and color copies.Comment
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Re: irc3380 top half of copy is blurry
on 3380
print out your P PRINT settings/ then do a DCON CLEAR/ POWER OFF/ON PRINTER
re-input those DCON settings/ then do FULL AUTO GRADATION
DC-CON Clears DC controller PCB's RAM.
MEMO:
The RAM is cleared after the main power switch is turned OFF/ON.
Operation method
1) Select COPIER > FUNCTION > MISC-P > P-PRINT to print out the service mode setting values.
2) Select this item, then press the OK key.
3) Turn the main power OFF/ON.
4) Enter the data printed by the P-PRINT operation as needed.**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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Re: irc3380 top half of copy is blurry
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Did that tech or someone ever remove the Laser Scanner Unit this is a tricky unit to remove and re-seat--
Points to Note when Mounting the Laser Scanner Unit-
When removing or mounting the laser scanner unit, hold the front side and the left side of the laser scanner unit. Holding at the right side may cause color displacement due to the positional displacement of the reflection mirror.
When mounting the laser scanner unit, fit the boss of the scanner unit into the slot of the machine, and be sure that the unit is secured in place.
Also, check to see that the heights of the screw on the front side and the screw on the rear side are the same.
LASER.JPG
your PG10 Should have Black on both ends---
pg10.JPG
Bk is used to detect the reference BD signal and, as such, laser light is directed to the surface of the polygon mirror. In other words, the write start position in main scanning direction for Bk is determined based on actual
measurement--
on that iR3380 PG10/ u have an issue with MAGENTA in Main Scan direction
pg10.JPG
since u show the M off-set issue on a copy of a test print off the glass/
OFF SET -M.JPG
I would look at a DC PCB--issue and or the Laser Unit itself
machine controls synchronization in main scanning direction to ensure the write start position of individual lines in main scanning direction.
Synchronization occurs for each line of each color, and is controlled by the DC controller.**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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Re: irc3380 top half of copy is blurry
Ok, we replaced the Laser Unit with no change. Then changed the DC Controller, its almost perfect but this is the PG10 now, could this just be a bad magenta drum?trilamdec13.pdf-------------------------------------
Did that tech or someone ever remove the Laser Scanner Unit this is a tricky unit to remove and re-seat--
Points to Note when Mounting the Laser Scanner Unit-
When removing or mounting the laser scanner unit, hold the front side and the left side of the laser scanner unit. Holding at the right side may cause color displacement due to the positional displacement of the reflection mirror.
When mounting the laser scanner unit, fit the boss of the scanner unit into the slot of the machine, and be sure that the unit is secured in place.
Also, check to see that the heights of the screw on the front side and the screw on the rear side are the same.
[ATTACH=CONFIG]22104[/ATTACH]
your PG10 Should have Black on both ends---
[ATTACH=CONFIG]22105[/ATTACH]
Bk is used to detect the reference BD signal and, as such, laser light is directed to the surface of the polygon mirror. In other words, the write start position in main scanning direction for Bk is determined based on actual
measurement--
on that iR3380 PG10/ u have an issue with MAGENTA in Main Scan direction
[ATTACH=CONFIG]22101[/ATTACH]
since u show the M off-set issue on a copy of a test print off the glass/
[ATTACH=CONFIG]22102[/ATTACH]
I would look at a DC PCB--issue and or the Laser Unit itself
machine controls synchronization in main scanning direction to ensure the write start position of individual lines in main scanning direction.
Synchronization occurs for each line of each color, and is controlled by the DC controller.Comment
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Re: irc3380 top half of copy is blurry
U mean the white gap area on PG10 Magenta blocks/
did u follow instructions/ & procedures for a Laser Replacement & the DC Controller replacement >
did u put back the DCON settings from P PRINT ?
(DC Controller replacement>the adjustment values (for ADJUST and OPTION) will return to their default settings. If there has been any change in a service mode item, be sure to update its setting indicated on the service label.)**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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"Find a job you love and you’ll never have to work a day in your life." Nagy's fatherComment
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Re: irc3380 top half of copy is blurry
Yes, to the white gap being my issue now. And yes, we did put back the DCON values from the P Print. Customer was leaving early and asked him to come back after the holidays, so I wondered if we should be prepared with a new Magenta drum unit. Or possibly just adjusting the IMG REG might work now.Comment
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Re: irc3380 top half of copy is blurry
Hello
Just read through the thread, is this happening on all 4 drum, have you tried to copy on single colour to see if you can isolate if you do indeed have a single faulty drum?
And yes there is a u in color
Interesting thread, happy new year
VamourslyComment
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Re: irc3380 top half of copy is blurry
[QUOTE=teckat;395883]U mean the white gap area on PG10 Magenta blocks/
did u follow instructions/ & procedures for a Laser Replacement & the DC Controller replacement >
did u put back the DCON settings from P PRINT ?
(DC Controller replacement>the adjustment values (for ADJUST and OPTION) will return to their default settings. If there has been any change in a service mode item, be sure to update its setting indicated on the service label.)[/QUOTE
After replacing the DC Controller and Laser Unit the Yellow was slightly shifted to the left and the Magenta was slightly shifted upward. I could not see this with my naked eye but the customer was complaining about it and once I looked at it with a magnifying glass I could see it. The tech went back out and adjusted the IMG REG on those 2 colors and the customer said it was perfect. Well 3 days later she says the Magenta is shifting upward again.......I don't know what else to try, any ideas? See attached PG6 and PG10Comment
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Re: irc3380 top half of copy is blurry
Would think dcon replacement with laser replacement MUST fix this...dcon tells yellow /mag driver what to do a la yellow/mag driver pcb and same with black/cyan....which seem ok. Mcon clear...Dcon clear after replacement...Comment
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