Xerox 700 fuser temperature

[jotterpinky]

Is there some sort of adjustment we can make to the fuser temperature of the Xerox 700? We're running our standard 80# cover stock at the 220gsm coated setting and it's not quite fusing. We're having to jump up two settings to the 300gsm setting to get it to fuse correctly, it seems to be worse on the outboard side of the machine. We ran several hundred prints and noticed the second side imaged was not getting fused correctly. It looks okay but as soon as you run your hand over it the fuser brushes off. We're running the same stock on a second Xerox 700 with the same settings with no problem. I'm wondering if the temperature or pressure settings have been changed on the machine having trouble.

[M@CK]

I'm going to go out on a limb here, BUT if you make a Custom Paper Profile you can change the Image Transfer.
My tech could not explain exactly what it did to the machine but

To make a Custom Paper "Profile", first log in, press Machine Status, Chose the tool tab, Paper tray setting,
Custom Paper Settings.

Chose a custom paper Setting entry, name it properly and change the "Adjust Image Transfer" you will have to test it out on your paper. range goes from 50 to 150, good luck.

[airyk]

We've had a similar problem to this and lied to the machine saying it was a higher GSM paper. But on yours you said it was fine on one side but not the other. So I'm at a loss for you.

[jotterpinky]

"Image transfer" adjusts the voltage (bias) on either the first or second BTR on the machine, this allows you to adjust somewhat for mottle but doesn't go far enough. We took our machine down to 50% (whatever that means) and it kept getting better, however 50% is as low as you can go so even though we could see it getting better with lower settings we couldn't go low enough. Xerox...gotta love em.

On a sidenote we just got a Konica 6000 in the shop and we can adjust transfer settings, as well as fuser settings to some degree. It really makes a difference when you have a good operator, the presets are fine for a good amount of work but sometimes...

[airyk]

One time we had problems with 300 GSM fusing and they altered a fuser at XEROX for us just for 300 GSM.

[kalindd]

You need to change some NVMs for the latch positions.
For
Uncoated 177-256 and Uncoated 257-300 - 744-699 must be 46 range is 10～49
Coated 177-220 and Coated side2 177-220 - 744-700 must be 43 range is 10～49
Coated 221-300 and Coated side2 221-300 - 744-701 must be 46 10～49

Lower the value by 3 points till fusing is good enough. Don't go too much cause you will have edge to center gloss difference.

If the value is 10, fuser performance is same as Non-half latch fuser.
Larger value means lower nip pressure（fix level down/Side Gloss less）.
Smaller value means higher nip pressure（fix level up/Side Gloss worse）

"Image transfer" can be lowered even more than this 50%. Your Xerox tech can change the reference point for your 100%.
Tell him to go his EDOC and find IQ19 Mottle RAP. Copy from it:
"Fine-tune the 2nd BTR transfer bias for a specific problem paper by varying the secondary transfer remote for that paper. Go to Xerox 700DCP NVM Access/SW Download Tool NVM 746-012 thru 746-041 and manually change the 2nd Transfer Output Coefficient Value Up or Down for the Paper Weight, Paper Type, etc. Initial Value = 120 and Max Value = 200."
Good luck!

[X33]

easier fix should be replace the fuser ... it takes 2 minutes

[CanarcticPress]

Have you tried the NVM Read/Write?? If not it helps when Im having image transfer problems.

Log In too your Machine
Machine Status (button)
Tools
Common Service Settings
Maintenance
NVW Read/Write
In The Current Value ( 740 - 043 )
Confirm/Change
In The New Value put in 1
Save

My tech gave me this little tip, and it will spit out more toner and cause a longer fusing time. Was how he explained it. Just make sure you turn it back to the original settings or else you will be using alot more toner then you really need too! Hope that helps.

[CanarcticPress]

http://http://digitalprinting.blogs....the-xerox-700/

Let me know if either of these helps, good luck to you

[kalindd]

740 - 043 to 1
This will activate "fuser gloss mode" for paper 177gsm and upper.
CanarcticPress Your tech is wrong, by activating it, actually you reduce the 2nd transfer 100% to 70% and by this less toner is laid on paper.
Fuser temp is increased by 17 degrees .
"machine speed" for 177gsm and upper paper weights is reduced.
In case of designating “Heavyweight Paper Mode” during B/W mode, IOT will run in FC
mode.
This is a very common mistake from techs, this is not a fix for non-fusing issues. This is a workaround.
Apply the settings that I wrote you and all problems will be solved.