How to Replace the Drum and Cleaning Blade in DU-105 for Konica Minolta C1070

I don't know if I did this the right way, but it worked for me. Bought a generic drum off ebay. Did take a bit of time, but should be worth it for a savings of over $200 per drum unit. I will update this post after the drum wears out.
The OEM Konica Drum will yield 410,000 clicks. We will see how long this drum lasts. The same drum and process can be used in Konica Minolta bizhub PRESS C1060, C1070, C1070P, AccurioPress C2060, C2070P, C2070, C3070, C3080.

[@justaprinter]

Update, don't waste your time on Generic Drums. Buy OEM.

[@justaprinter]

Reason is there are three wear items in the drum unit. The drum, cleaning blade and wax roller. All three need to be replaced, but you are only replacing the drum when you buy generic drums.

[@lukenewsome5969]

@@justaprinter you can also buy kits that include the drum lubricator, I have some, yet to try them though.

[@baustin2402]

Thanx for sharing and the "HEADS-UP" 😳

[@kevinmoodley6193]

Hi. I work on Ricoh machines almost exclusively and when I came across your videos I was having a look at them to see what the process is like. With this particular video I think I have to agree with you to replace the entire unit. Reason being, with the complete unit you get the drum, blade, cleaning brush and lube bar. Anyway thanks for the cool videos.

[@muhammadabrar2997]

By changing opc we have background problem when we open up that right black cover fitted with two screws😮.i.e uneven test patterns.

[@aleksandarkocic9124]

Greetings from Serbia, all praise for the work you do alone..

[@justaprinter]

Hello! Thank you for watching!

[@total_tollywood_entertainment]

Thanks bro i learn more about repairing these types of machines from you.

[@EverH0p3]

Thanks for this... got me started but I hit a painful issue some may benefit reading about. You can remove the drum WITHOUT taking off the 2 black plastic cams (3min 40sec) at either end. These cams are set at the factory and the screws are glued in place. If you do remove one of these you will notice that it has about 2mm of play. It literally has locating slots rather than locking holes so that it can be adjusted. These cams set the distance between the developer/toner supply and the drum. If these are NOT put back in the same position, very hard to do, they get out of whack to the drum and sit too close or too far from the drum causing a side to side density difference. All you need to remove is the top brace (0.50secs) that provides structural rigidity end to end and operator side bearing. The drum can be slid into the space left by the missing bearing and then up and out. No idea if they can be left in if you have to replace the rubber blades. Its safest to dust (with toner) any parts you clean before putting them in contact with the drum. Regarding drums. They are light sensitive. If you play with them under any type of normal office lighting strength or worse daylight… you will damage them. They can come back. Not sure if its time or use that brings them back but they can. I use a single incandescent lamp pointed into the corner of the room with no other light. Makes for dim working conditions but a damaged drum is far worse. Oddly enough, in other ways drums are quite robust. I ran some envelopes recently and glue made its way to the drums. I wiped it off directly on the drum while it was still in the machine with very soft rag and alcohol. No damage. On another drum glue was smeared all the way around. I had to take it right out and ended up wiping down the entire surface with no damage. Unfortunately it slipped from my hands twice while cleaning. Once bouncing off a screw driver and the other falling directly on the table. Incredibly I can see no sign of damage in the print.

[@moundcitynews]

Watching from Northwest Missouri. Similar setup, awesome to see a different take on things and always pick up on little things you do. Always been a big Konica fan, but never done my own maintenance. After watching your videos we might take the jump into doing our own maintenance on an old c1060 though! Awesome work! So entertaining to a print geek like me!

[@justaprinter]

AWESOME! It's certainly worth your time. Especially if you have other machines to fall back on.

[@burimch3]

Greetings from Kosovo 🇽🇰 , Very nice job that you are doing, You are a model business for small to medium businesses. Just keep going great work

[@justaprinter]

Wow, thank you!

[@torreyhuerta]

Great vid, and it'll be interesting to see how long that drum lasts. The music during your time lapse was nice!

[@justaprinter]

Thank you! I'm interested to see how long it lasts to, I'll do my best to wear it out!

[@graok]

Watching you from Sweden! So inspiring!

[@justaprinter]

Awesome! Thank you!

[@prateekgupta5297]

Hello! We are having a similar setup in India and we love your videos. Keep it up.

[@justaprinter]

Nice! Thanks!

[@justcallmewhip]

Good idea to buy a pouch of drum set powder or "dusting powder", especially when using generic parts. Some drums and blades come pre-coated, but not all. Depends on the model or if it's OEM. Tap the bag over the surface of the drum as a light single coat and do the same on the cleaning blade(s) before installation. You can use pure toner in a pinch, but white setting powder is less messy and will lubricate the drum/blade better in prep for the adjustments and decrease the chance of blade drag/flip as well as part damage short-term. Konica dealer tech in NY.

[@justaprinter]

I was wondering if that might have contributed to early failure of the generic drums. I put some setting powder on the blade, but maybe not enough. Thanks for the tip. Keep em coming! :)

[@eddybulich3309]

@@justaprinter Its the coating on the generic drums - they are just not as well coated as OEM. My company is Toner Plus and this is what we do. If you can find a good quality aftermarket drum they can last almost as long as the OEM drums. Many years ago Mitsubishi put out a drum for the remanufacturing industry for HP printer cartridges - it was called a super drum. The coating was so good and thick that all you had to do was give it a polish and it would last almost indefinitely. They then realised they made the drum too good and withdrew it from the market. I like your videos very much.

[@justaprinter]

@@eddybulich3309 Interesting! Thanks!

[@robertospeziale5014]

ciao sempre belli e informativi i tuoi video, ottima la pressa per i blocchi. grazie :-))))

[@justaprinter]

Grazie! Sono contento che ti piaccia guardare

[@serialcreative7130]

I love what you do.

[@justaprinter]

Thank you, me too!

[@spirit-teacher]

Wow, commercial printers also have plastic gears? I thought only home printers use plastic gears to cut corners and commercial gears are made of metal! How often do these gears need to be replaced?

[@justaprinter]

Yes, unfortunately there are plastic gears in there.

[@philanderson1200]

When I have to disassemble anything I take a lot of pictures on my phone. Especially if it's something I have never done before. It helps me from having spare parts when I'm done lol

[@justaprinter]

I do the same thing! One of the best features of a phone, second to the flashlight of course.

[@mohammedm.m.alrawhani4178]

Great work i liked how you were so careful in the steps what then what you have done have reset the drum counter or not

[@justaprinter]

Yes, I reset the drum counter. These generic drums didn't last but a few weeks. I replaced them with oem.

[@Sahil3374]

Sir.. In my machine bizhub 6000.. Drum gets dots/scratches very easily even if they are used 5%. It's happening with me for last 1 year. Tried changing developer, Charging, drum but still drum is getting dots.. Plz let me know the solution if any

[@justaprinter]

Oh man. I'm not sure. Sometimes I would get dots on my 1200PRO drums and I just figured they were defects from the factory. I tried generic drums in this video and they didn't last long at all. Only use OEM.

[@andriusl1762]

Hello, thanks for interesting content you're making. I've got some questions, can I? How did the 58th or 43rd pattern looked like? Are corners were same dencity?Does lubricating roller, that black one, can be bought all together in one set? Thank you.

[@justaprinter]

So you can buy the drum and cleaning blade now. I also heard that you can buy all the internal components (lubricating roller etc) but I have not tried that yet.

[@databoy2010]

my biggest concern with the drum rebuild idea is, what happens when you're in the middle of a big project and you discover that a drum needs to be replaced. Do you stop everything for 45 min? Do you shuffle the work load around with the other presses so that the priority work gets accomplished? Do you just keep a set of new ones around just in case or, do you purchase a second set of assemblies and then just keep perpetually rebuilding them as you have time? If storing rebuilt units how do you protect them from moisture/other environmental elements?

[@justaprinter]

I have learned not to bother with rebuilding. I now just keep a few OEM drum units on the shelf at all times. Much better!

[@msaeger]

You should see if you can get the cleaning brush and lube bar also. The drum gets scarred up like that when the lube bar is gone. You may even be able to get the drum to last longer by replacing just the lube bar when they say the drum unit is due.

[@justaprinter]

Hmm, interesting. I'll have to look into that. I kind of doubt that I can get those parts, but that would be a completely new unit then.

[@msaeger]

@@justaprinter I work on a different brand but I also have seen knock off drum units for konica.

[@Sahil3374]

Sir.. In my machine bizhub 6000.. Drum gets dots/scratches very easily even if they are used 5%. It's happening with me for last 1 year. Tried changing developer, Charging, drum but still drum is getting dots.. Plz let me know the solution if any

[@Gofacts20]

Hi Dan how can I print on window envelope ? can the Konica Minolta AccurioPress C3070 do that?

[@justaprinter]

Yes, if you have the optional envelope fuser.

[@kalyanramang1315]

Super bro one man Army

[@justaprinter]

Thanks!

[@ber82]

Hi Dan, thank you so much for your great videos you are a blessing, i've learned so much!. I hope you can help me, i have a 2060L, since new the drums keep getting scratched by the lubricant bar, even at 8% (some times at 50% it varies) after a long run thin white lines appear FD, When installing new one we only adjust gamma. My local tech disassemble the drum unit and sand the wax piece to clean it, it fixes sometimes but the problem returns after a while. I never had a drum that lasts at least 100% even on my C6000 last up to 200% , i print mostly high coverage. Thanks so much.

[@justaprinter]

It could be because you are running an "L" machine. I think the use different drums and are considered light duty.

[@alessandrocriscuolo2920]

Dal punto di vista di qualità cromatica come si comportano i drum generici?

[@justaprinter]

Non bene. Mi sto preparando a sostituirli con tamburi OEM.

[@nyitraigabor7531]

Hi, Is drum good for the C3070? Where can you buy only drum without drumunit?

[@justaprinter]

Yes, it would be the same drum, I bought this one off of ebay.

[@snowboardnash]

@@justaprinter Have you ever tried Precision Rollers site? They carry the OEM Drum Units. Personally I stopped using non-OEM parts as they can be too much of a gamble. Did this once and it pulled out all the developer and it went everywhere and got into all the clutches below. It cost more than what I saved (time and money).

[@chrisbarton1517]

Precision roller is good, being in SoCal I mostly use Serj at Toner Town in LA. Great prices and service!

[@sk8girl182]

Hello! Great videos! I see you own only konica printers 1) what is your opinion about other brands for example xerox? Also 2) if you were just starting your business now what printer you would buy? ( small budget ) And from the printers you own 3) who is your favourite considering print quality/service consumables/toner cost? Thanks!

[@justaprinter]

Xerox makes nice machines. I like Konica because I can buy parts and service myself. Other brands are hard to find parts for. I switched from Xerox printers to Konica because Konica was cheaper to own/operate. Basically any printer will produce high quality as long as you are keeping up on maintenance. The C6500 will make a good starter, however at some point they will stop making parts for them, so maybe a 1070 would be a better choice.

[@sk8girl182]

Just A Printer thank you!

[@kamalrebolegi]

Hi friend, Can i use opc c6500 to c1070?

[@justaprinter]

I'm not sure, but I don't think so.

[@miketheprintman]

Dan, how many square feet is your production area?

[@justaprinter]

Production are is about 1,000 square feet.

[@riyaz96]

What's the life for new drum? How many clicks?

[@justaprinter]

I think they are rated for 400K but you can get a lot more out of them.

[@ВикторЮдин-п7х]

Good vid! What about reset the drum unit counter?

[@justaprinter]

You bet. Press Utility button, then stop 0 0 stop 0 1. Then go to counter, special parts, drums, reset the drum you replaced. Thats it.

[@ВикторЮдин-п7х]

@@justaprinter you save my money bro

[@audiomedia4856]

But there is other thing to do when we replace drum, not juste reset counter i think, i want to know also what ils it, thank you dan

[@simesyou1]

hello please, it can be used in the C3070L ???

[@justaprinter]

It should be compatible, but I am not sure.

[@serialcreative7130]

Good work, I love all you do, please how do I reset the drum counter after fixing new drum?

[@justaprinter]

It is very similar to this video. Go into service menu, counter, special parts, drum, reset. kzbin.info/www/bejne/nWmzpHp8jLhqoNk

[@serialcreative7130]

thank you so so much, please what could be the cause of the printout been cloudy in the middle of the print?

[@justaprinter]

@@serialcreative7130 If it is happening to all colors it would be a transfer issue. If it is one color it might be developer.

[@dimitarkandimirov2497]

Yoy should know that disassembling the black plasic parts from the sides is not a good idea, because they set the drum-developer distance. You can still remove the blade an the lubricant bar without touching those parts. You should also know that if you dont clean and polish the lubricant bar unevenness, the new drum will get damaged very soon.

[@justaprinter]

Yes, I found this all out after I did this. I decided to just use OEM drum units after this.

[@eddybulich3309]

How long did the drum last - Have you had to replace it yet.

[@justaprinter]

Only lasted a few weeks. They were Junk, use OEM drums.

[@hrishimishraa6313]

What you applied at 12:40

[@justaprinter]

Fan-apart adhesive on carbonless forms.

[@lfcampos]

Hello from Brazil. Thank you for your amazing videos. When you say OEM Drum, you mean an original Konica DRUM but without the original package? Can you send me a link of the generic and the OEM Drum? So I can undestand the diferences? Thank you a lot!

[@justaprinter]

I mean the konica OEM drum unit. The generic drum I bought off ebay. Not worth it. The difference is when you replace the drum, you are not rebuilding the entire unit. There are other wear items like the wax roller and cleaning blade that should be replaced and are not.

[@lfcampos]

@@justaprinter thank you a lot

[@printshoptalk]

HeyDan Derek here from AlvaluDesigns , was wondering if you would be down to talk on our podcast for any amount of time you would like in our next episode :)

[@justaprinter]

Wow, that would be fun. I need to listen to your podcast. Let me know when/how. I have never done anything like that before. Cool!

[@rizalaldiansyah6832]

its okay, i use generic drum on over two years but the impression more low than oem drum

[@justaprinter]

Good to hear, thanks!

[@mariogomez6011]

I keep getting this on My paper

[@justaprinter]

If it is a specific color you have a bad drum. If the excess toner is a mix of everything you likely have a bad cleaning blade on your second transfer belt.

[@miko007]

the amount of times you handle toner with bare hands and without respiration gets me really worried for your health, dude... that is nasty stuff, and i sadly have seen dear people suffering to death because of cancer, caused by toner. stay safe, protect yourself. please.

[@justaprinter]

Oh man, thanks for the tip. Most of the time it is not in the air but you make me think a bit more about it now.

[@miko007]

@@justaprinter yeah, we pretty much do not think about the implications something can have, until bad things happen right in our face. thats just how humans work, i guess. stay safe.

[@mg8718]

I dont think your gonna have very good luck with the aftermarket drum.

[@justaprinter]

You are correct. That was my test and I only buy oem now. :)