Canon 3200 Drum issue

[dagoof]

I've found over the years I've literally wasted thousands on drums for the 3200 and the quality of them seem to be useless now - often after only 10-20% used they're laying down background scatter (1st print is fine, a little evident by 2nd, out of control by the 3rd).

I've tried auto-gradiations, reducing print density etc but binning the drum is usually the only way. I just found an archived thread that says "all that you have to do it adjust the color that is overtoning in service mode level 2 down to a -2 and doing that and that alone will get your drums to go 80k or more". Does any know, are we talking about the DENS>T-SPLY settings here? (as I tried that and it didn't really help!).

[charm5496]

Re: Canon 3200 Drum issue

here is what I use to change on drums that were overtoning like you are describing. You can adjust the numbers however you like just keep in mind that this does affect the image quality and you need to power cycle and run auto gradation/calibrate after adjusting.

TC-REF to 0
DVTGT-M to -3
NEGA-GST to 2

[dagoof]

Re: Canon 3200 Drum issue

Thanks Charm, will give it a go!

[charm5496]

Re: Canon 3200 Drum issue

you are welcome...and good luck!

[V-P]

Re: Canon 3200 Drum issue

Maybe I am wrong but I always thought that if you "push" more on the drums after they reached 250%-300%, than toner consumption is higher.

Is this true ?

[teckat]

Re: Canon 3200 Drum issue

I've found over the years I've literally wasted thousands on drums for the 3200 and the quality of them seem to be useless now - often after only 10-20% used they're laying down background scatter (1st print is fine, a little evident by 2nd, out of control by the 3rd).

I've tried auto-gradiations, reducing print density etc but binning the drum is usually the only way. I just found an archived thread that says "all that you have to do it adjust the color that is overtoning in service mode level 2 down to a -2 and doing that and that alone will get your drums to go 80k or more". Does any know, are we talking about the DENS>T-SPLY settings here? (as I tried that and it didn't really help!).

post some copies of those issues
are u using OEM Drums/Toner ?/

try this---------
1-Turn off PASCAL in service mode. 2-Run CCD AUTO ADJ. 3-Turn PASCAL back on.
4-Exit service mode and complete a FULL Auto-gradation.


#1 & # 2 most important issues on those 3200 DRUMS/ TONER & SEPARATION is

the ENVIRONMENT CONDITIONS of the Printer & % of COLOR COVERAGE


have seen issues with HV1-SUB PCB / cause of Background issues



Did u check the four bias tabs on the Drum Unit Cover. The bias tab may be pushed in and stuck. If the tab is stuck in, it will create a poor contact to the bias tab on the drum unit resulting in background on the copies. There is one tab for each drum.

have seen this many times--------------in field

[Canon.Tech]

Re: Canon 3200 Drum issue



If the same customer + machine were high use the drums would last a lot longer, I average around 300% on colour drums, less on the black as they start to leak at around 200%

[dagoof]

Re: Canon 3200 Drum issue

Charm - no luck with that.

Environmental will have a roll to play, these ones have been lying for a while, but others can be acting up after just a couple of weeks (again, usually Y). It's laying don vertical bands of black at the moment, but again, 1st sheet is always fine.

Tekcat - is that Pascal in Service Level 1>Option>Body?
Level 1>Function>CCD>CCD-ADJ
Had tried that already.

Checked the bias tabs (they're ok) but I'm guessing as a new drum often sorts it, that wouldn't be the issue?

Thanks for the replies.

[teckat]

Re: Canon 3200 Drum issue

Charm - no luck with that.

Environmental will have a roll to play, these ones have been lying for a while, but others can be acting up after just a couple of weeks (again, usually Y). It's laying don vertical bands of black at the moment, but again, 1st sheet is always fine.

Tekcat - is that Pascal in Service Level 1>Option>Body?
Level 1>Function>CCD>CCD-ADJ
Had tried that already.

Checked the bias tabs (they're ok) but I'm guessing as a new drum often sorts it, that wouldn't be the issue?

Thanks for the replies.

Post pics on some of the issues !!!!!!!!!!!!!!!!



IN Level 2/COPIER>ADJUST (Level 2) screen
<HV-TR>
The adjusted offset doesn’t become valid unless all of the following 6 items are entered: 2TR-TGT, 2TR-SHR, TR-PPR, TR-ENV, TR-CLR and TRDUP.

The settings entered for all 6 items make up a single pattern. 8 patterns can be stored in memory.

• 2TR-TGT1/2/3/4/5/6/7/8 (Used to adjust the offset to the secondary transfer target current.)
Adjustment range: –5 to +5 (2 μA units) (Value at time of factory shipment/value after RAM clear: 0)
Increasing the setting value: Effective for images with toner spatter/water droplets.
Decreasing the setting value: Effective for images with white marks, white blotches,rough-textured half-tones.

• 2TR-SHR1/2/3/4/5/6/7/8 (Used to adjust the offset to the secondary transfer paper-portion
voltage.)
Adjustment range: –5 to +5 (100 V units) (Value at time of factory shipment/value after
RAM clear: 0)
Increasing the setting value: Effective for images with toner spatter/water droplets.
Decreasing the setting value: Effective for images with white marks, white blotches,
rough-textured half-tones.

• TR-PPR1/2/3/4/5/6/7/8 (paper type item for secondary transfer offset adjustment)
1: Normal paper (Value at time of factory shipment/value after RAM clear: 1)
2: Recycled paper
3: Bond paper
4: Mother print
5: Card
6: Extra thick card
7: Special paper 1 (including labels)
8: Glossy paper
9: Special paper 2 (including Japanese paper)
10: Postcards/envelopes
11: Transparencies (color)
12: Transparencies (monochrome)

• TR-ENV1/2/3/4/5/6/7/8 (environmental item for secondary transfer offset adjustment)
Enter value of COPIER>DISPLAY>MISC>ENV-TR.
1: Low-humidity environment (Value at time of factory shipment/value after RAM clear:1)
2: Normal-humidity environment
3: High-humidity environment

• TR-CLR1/2/3/4/5/6/7/8 (color mode item for secondary transfer offset adjustment)
1: Full-color mode (Value at time of factory shipment/value after RAM clear: 1)
2: Monochrome mode

• TR-DUP1/2/3/4/5/6/7/8 (one/two-sided item for secondary transfer offset adjustment)
1: One-sided (Value at time of factory shipment/value after RAM clear: 1)
2: Automatic two-sided
3: Manual feed two-sided

[dagoof]

Re: Canon 3200 Drum issue

Thanks Tekcat, I've added a pic - converted it to B&W and adjusted levels to hopefully show it a little clearer.
Got vertical stripes at ~47mm intervals (possibly the diameter of the drums, cleaning blades marked it from sitting idle?) but there's also general background scatter that has a horizontal grain type pattern. All in all, pretty dirty copies!

[teckat]

Re: Canon 3200 Drum issue

Thanks Tekcat, I've added a pic - converted it to B&W and adjusted levels to hopefully show it a little clearer.
Got vertical stripes at ~47mm intervals (possibly the diameter of the drums, cleaning blades marked it from sitting idle?) but there's also general background scatter that has a horizontal grain type pattern. All in all, pretty dirty copies!

there are no cleaning blades in the drum units(there is an internal cleaning sheet in units , in contact with drum (reciprocating movement of 5 mm; cycle of 1.5 sec) only a blade to clean ITB--


forget about conversions /// post some color pg5's and a pg6 grid pattern

then post a copy of a text document from the glass

do not do any Color conversions /////////////

[Fer]

Re: Canon 3200 Drum issue

I don;t see that much 3200s, but on 4080 series i suspect a decrease in durability. On full bleed/heavy stock customers we replace em between 10-20k. Were "in the old days" 50k was possable.

[teckat]

Re: Canon 3200 Drum issue

I don;t see that much 3200s, but on 4080 series i suspect a decrease in durability. On full bleed/heavy stock customers we replace em between 10-20k. Were "in the old days" 50k was possable.

Drums are tested and rated for 6% coverage/

full bleed color printing on these drums (not approved by Canon or Service Techs>
unless u want to keep on customer site toner & drums stock

[dagoof]

Re: Canon 3200 Drum issue

Tekcat - should I be looking to up the value of every variant for each of the 6 sections e.g.
TR-PPR1 +2
TR-PPR2 +2
TR-PPR3 +2

All the way up to #8 for each PPR/TGT etc?

[teckat]

Re: Canon 3200 Drum issue

Tekcat - should I be looking to up the value of every variant for each of the 6 sections e.g.
TR-PPR1 +2
TR-PPR2 +2
TR-PPR3 +2

All the way up to #8 for each PPR/TGT etc?

I could never understand those settings> usually increase to +3 on those red highlighted items

& check other value settings posted on rest