C451 thick paper problems

[methogod]

https://acrobat.com/#d=INE0jnS279JT6HOD6a8vcQ

https://acrobat.com/#d=QkQqkbz2ybc0UsJ-1Ylv9Q


two samples, one at high res, and the other two compressed.

One of them is 14mb.

let me know what you think.

thanks,

[Stirton.M]

Sorry about this. For some reason I did not get a notification of your reply. Doing a search through some of my posts I found this one incomplete.

The second link you provided asks me to login to the site.

I recommend that you make use of this forum's attachments. Much much more reliable and local.

But I get the general idea what your problem is on the first page.

Note at the bottom of the page the problem is more pronounced but as you move toward the top, the problem vanishes within the blues, but anywhere there is black, the image defect is present.

In tech rep, do a halftone test on all four colours. My bet is that your black IU is failing judging from what I am viewing in your samples. It may also simply be dirt on the laser window below the IU. Use the cleaning wand on that to make sure before you pop the IU for a new one.

There is a possibility the transfer belt might be bad as well. Generally, if the surface is nice and shiny with no blemish lines, the belt is fine. If there are any blemish lines (dull lines worn into the surface), these will cause issues, though this will affect all 4 colours, not just one.

The fusing unit is certainly not likely the cause of this problem. Not sure who might have directed you to do that. Perhaps there was another issue that wasn't mentioned here?

Truth be told, there is little preventing this machine from doing high volume, even in card stock, though I would recommend the LCT as others have mentioned if they are primarily doing heavy stock of anything heavier than 203gsm, up to a maximum of 10pt. Anything thicker, there is no guarantee that this machine will do well, if at all. 6500 will handle 10pt quite well, and depending on the paper brand, some varieties of 12pt. Do not try to duplex anything above 8pt thickness. Both machines will have jamming issues because of the number of bends the paper must make in the path. If duplex is needed, split the job into separate single sided runs.

Capture.JPGCapture2.JPG

[RRodgers]

https://acrobat.com/#d=INE0jnS279JT6HOD6a8vcQ

https://acrobat.com/#d=QkQqkbz2ybc0UsJ-1Ylv9Q


two samples, one at high res, and the other two compressed.

One of them is 14mb.

let me know what you think.

thanks,

I would say Black or Cyan Dev unit.

[methogod]

Thank for the help, but when i print on regular 28lb paper, i will have 100 good prints, then one messed up one. where the black is off by a few MM or looks like it just didnt fuse to the page well.

I ordered the newer fuser as i have the orginal (the newer one ends in -22) has some fixes that the orginal didnt have. I will try to print the color test and post the results. I do print only 1 sided on 10pt and 12pt but only from tray 1, the fiery will only allow me to pull from the bypass or tray 1.

thanks...

[Stirton.M]

Hmmm....in tech rep, under machine settings, you have two adjustments that are available. One is temperature adjust. From the manual...

Functions • To adjust individually the temperature of the heating roller and the fusing pressure roller for each type of paper, thereby coping with varying fusing performance under changing environmental conditions.
Use
• When fusing performance is poor, or wax streak or offset occurs when the type of paper is changed or environmental conditions change.
• Use when the curling of the paper due to the paper type or environmental change occurred, or when the paper jam, as well as stapling or folding position error occurred due to the curling of the paper.
• By setting the temperature higher (+), gloss of print can be improved.
• By setting the temperature lower (-), exit roller mark can be reduced.

Paper type Setting range step
Plain Paper -20 °C to +5 °C 5 °C
OHP Film -20 °C to +5 °C 5 °C
Thick 1 -20 °C to +5 °C 5 °C
Thick 1+ -20 °C to +5 °C 5 °C
Thick 2 -20 °C to +5 °C 5 °C
Thick 3 -20 °C to +5 °C 5 °C
Thick 4 -20 °C to +5 °C 5 °C
Post. -20 °C to +5 °C 5 °C
Enve. -5 °C to +5 °C 5 °C

Adjustment
Instructions
If fusing performance is poor, increase the setting.
If wax streaks occur, decrease the setting.
If offset is poor, decrease the setting.
If curling of the paper occurs, decrease the setting.
Setting/Procedure
NOTE
• To adjust the fusing temperature, adjust on the heating side first. If the further adjustment is necessary, adjust on the pressure side.
1. Call the Service Mode to the screen.
2. Touch these keys in this order: [Machine] → [Fusing Temperature].
3. Select the paper type and fusing roller type (Heater Roller or Pressure).
4. Enter the new setting from the [+] / [-] key.
5. Touch [END] to validate the adjustment value.
6. Return to the basic screen.
7. Output two or three test printing and check to see whether the image has any problem.
8. Make the adjustment for each type of paper.

[Stirton.M]

Hmmm...strange that I use the same font that formatted well in notepad but it sucks here. Hopefully you can understand that table in the middle.

The second setting is fuser transport speed. Adjust that according to the job you are doing.

Of course, the problem you are describing does not appear to be normal behavior of this machine. We have about a dozen of these model lines in a variety of print shop environments and have never encountered any issues regarding printing of anything, aside from thick stock issues, which there are workarounds.

You said your fiery doesn't allow to print thick stocks from other trays. It should, and the only restriction would be duplex for paper stocks set at thick 4 (bypass tray and LCT).

What is the firmware level of the copier. Recommended firmware level to G00-R6 or G00-R5 (even with version R6, the MFP will display R5 in the MSC section of the firmware display screen).

What version is the fiery system? Print a fiery config sheet, it should be amongst the first few lines of the printout. Latest version of the IC409 is Version 1.01. There are an assortment of patches available for both version 1.0 and 1.01. I do recommend to upgrade to version 1.01 and apply all the patches that are applicable to this customer's needs.

Also, ensure the driver you are using is the correct driver for the fiery and is NOT the MFP driver, there is a difference. The best bet to ensure you have the correct driver is to download directly from the fiery. Login to the copier via pagescope, there should be a Fiery logo in the user screen. Click that and you should be presented with the fiery details. One tab allows you to download the software that is fiery related, including the drivers, all OS specific to either windows or mac. Also ensure the driver is properly configured. If there is a firewall preventing the driver from properly acquiring the options, set the permissions accordingly. This is most likely the reason you cannot set paper weights for any of the other drawers.

The fiery tools also contains a copy of command workstation. Though this one is fine (version 4), I recommend to download version 5.1 from efi... Fiery Command WorkStation 5

Command workstation is indispensable when dealing with a fiery controller. To see it in action is to be a believer. If you follow that link, I believe there is an interactive on the web page to demonstrate what it can do.