BP Fusing Units

[nanohitmen]

had 3 crap out at 20-30k PoS these BP's are just IM series Ricohs

[Imprestik]

Thanks, but the meandering adjustment is not the problem. Did you read the original post? Also you sound just like someone from the sharp hotline. Quoting instructions from the manual.

You sound quite salty but the main reason why the belts were tearing was incorrect meadering adjustment when they were first released.

Moving on, the current fusing belt part BP-FB703 has addresses a lot of the tearing issue you seem to be having by increasing the amount of lubricant is on the pad from factory which assists lubricating the belt its self.

A lot of the tearing I have personally seen relates to techs not replacing the pressure roller once the belt tears

I have seen the bearings in the brown drive gear damaged which takes out fuser quickly by tearing it as stated. The drive gear its self wears out particularly quickly and should be replaced when refurbishing the fuser for optimum use

In saying this as well, I do have a BP70C65 which I look after which is just about to click over 1.7 million and has been out in the field for 28 months now. Device gets absolutely smashed daily and have maybe gone through 5 fuser rebuilds max in that time. While is it more than what the current figure is which is 600K on fusing parts, by the sounds of things the device is doing great.

While I don't have no where near the amount of failures you have, I can't understand why their is so many failures. Is it a climate factor? is it paper stock related? Their has to be a reason and I do not agree with "oh its as f/*-ed design". Yes they seem to be a weaker design than the CR4 and 4.5 but I am getting the predicted life out of the devices I look after.

Lets see what happens when the CR5.5 gets released later on in the year. Apparently a lot of the CR5 issues should be sorted on this model so lets wait and see.....

[miller01123@gmail.com]

You sound quite salty but the main reason why the belts were tearing was incorrect meadering adjustment when they were first released.

Moving on, the current fusing belt part BP-FB703 has addresses a lot of the tearing issue you seem to be having by increasing the amount of lubricant is on the pad from factory which assists lubricating the belt its self.

A lot of the tearing I have personally seen relates to techs not replacing the pressure roller once the belt tears

I have seen the bearings in the brown drive gear damaged which takes out fuser quickly by tearing it as stated. The drive gear its self wears out particularly quickly and should be replaced when refurbishing the fuser for optimum use

In saying this as well, I do have a BP70C65 which I look after which is just about to click over 1.7 million and has been out in the field for 28 months now. Device gets absolutely smashed daily and have maybe gone through 5 fuser rebuilds max in that time. While is it more than what the current figure is which is 600K on fusing parts, by the sounds of things the device is doing great.

While I don't have no where near the amount of failures you have, I can't understand why their is so many failures. Is it a climate factor? is it paper stock related? Their has to be a reason and I do not agree with "oh its as f/*-ed design". Yes they seem to be a weaker design than the CR4 and 4.5 but I am getting the predicted life out of the devices I look after.

Lets see what happens when the CR5.5 gets released later on in the year. Apparently a lot of the CR5 issues should be sorted on this model so lets wait and see.....

Thanks for your opinion. Not salty, sorry if I hurt your feelings.
We do the meandering adjustment at set up. Every time a fusing unit starts rubbing on the front frame and honking the meandering adjustment comes back OK. Sometimes they shred, sometime they lock up and take out the gear. Most have been original fusing units but I am starting to see the same problem with rebuilt fusing units also. I hope that makes it clearer for you.
P.S. Theses fusing units are TRASH.

[boutn]

BP fusers are trash indeed...they fail all the time

Fusing belt shreds, fuser locks up, separation guide gets bent all the time.

We enable the fuser cleaning pages every 5K on all machines + enlarging the lead edge hoping the paper wont get under the separation guide and bending it all the time.

We usually replace the entire fusing unit with a new one, so they are brand new. (no time to rebuild them right now)

Meandering adjustment always gets done on startup AND after delivery. Also when replacing the fuser.

These are just crappy fusers.

[OlliK1969]

I have about 50 of the BP series at customers' premises. So far there has been one defective heater where the fuser belt was completely torn. However, the customer had used 360 g paper, which the device is not designed for. So he had to pay for the fuser unit. What we have now had with 2 devices is smearing on the printouts, but I'll open a new thread for that.

[OlliK1969]

Hello, I wish I hadn't said I'd had this problem before. Two defective fuser belts within 24 hours! And the worst part is, the BP-FB-703 is currently out of stock! The phone lines to Sharp Germany are hot right now.

[miller01123@gmail.com]

Hello, I wish I hadn't said I'd had this problem before. Two defective fuser belts within 24 hours! And the worst part is, the BP-FB-703 is currently out of stock! The phone lines to Sharp Germany are hot right now.

You can order the supplies and rebuild them for half the price.

[ihatefinishers13]

You can order the supplies and rebuild them for half the price.

In US, they're on backorder through this weekend, and it's a LOT on backorder. We ordered 2 units, one to replace from a machine in our office, and the other for the shelf so we have one in a pinch!

[OlliK1969]

You can order the supplies and rebuild them for half the price.

And which parts do you change?

[miller01123@gmail.com]

And which parts do you change?

FB and LH sometimes the drive gear

[driving lots of miles]

Just today we had 2 BP Color copiers with broken fusers. One just totally locked up and the other fuser belt torn. I hope they get a solution for these soon.

[D-W]

Sorry if the English is not good, I used a translator.

I was on a BP-70C65 this week. It was still the first fuser unit and it had printed 300k. The machine was still printing, but always made loud noises. I think it is the same problem as the P-2040DN from Kyocera. The frictional resistance in the fuser unit gets bigger and bigger and then the gear wheel with the spring jumps during the drive. The fuser unit looked normal, no damage to be seen. I then replaced the LH and FB. After that the noises were gone.

[ihatefinishers13]

Sorry if the English is not good, I used a translator.

I was on a BP-70C65 this week. It was still the first fuser unit and it had printed 300k. The machine was still printing, but always made loud noises. I think it is the same problem as the P-2040DN from Kyocera. The frictional resistance in the fuser unit gets bigger and bigger and then the gear wheel with the spring jumps during the drive. The fuser unit looked normal, no damage to be seen. I then replaced the LH and FB. After that the noises were gone.

We've noticed that the belt rides to the front side, almost always, and it vibrates against the front collar. Sometimes they're already shredding, other times they will last for a while longer, and then the noise doesn't stop and it's about to shred.

[D-W]

Yes, the belt was also right at the front. I then let the fuser unit cool down for about half an hour and fixed another thing on the copier. After that I ran SIM 6-8 twice. Both times it showed OK, the belt was exactly centered afterwards. However, the loud noises did not disappear.
The noise can be reproduced by hand. Remove the fuser unit, hold the drive gear and turn the green wheel in the wrong direction. If I remember correctly. This is what the copier sounded like.

[nanohitmen]

I didn't do the procedure on new machines (because it was theoretically done in the factory), but most fusers failed before 150k.
Since then, I've been checking fusers on installation, and only ONE machine was OK when it left the factory.
Sharp France doesn't give a damn and pretends that I'm the only one with this problem, as with the CR4s, CR3s and so on.
I retaliate by telling them that I now only push Epson instead, and during training sessions I spend my time pointing out engineering flaws that aren't present on the competition.
I don't yet have a BP-C533 C542 in my fleet (as I'm forcing the EM-C800 and AM-C400), but it seems to be the same crap as the CR5 in terms of fuser.

God I miss working for my old dealer sometimes. We had just become an Epson Dealer, and yea Epson is the way to go. Loosing faith in sharp fast,these BP's are a damn joke. 1 million prints guaranteed on an Epson print head or 2 mil with the extended warranty,can't beat that.