March 2011 Subject: Konica Bizhub 250 Question: My Bizhub 250 gave the error code C0204 (2nd tray lift up) then gave C1183 (elevating unit, elevating tray). I tried to reset the copier, but it didn’t help, then I took all the finisher off the copier, but no luck. Any idea of how to get rid of this code? Thank you. Answer: The C1183 is the lift assembly for the doc feeder. Clean and check the parts in the doc feeder then run the trouble reset. Answer: Thank you for your help, I don’t work with Konica a lot. The reason I removed the finisher is because this client didn’t respond to my repeated requests not to keep stuff underneath the finisher obstructing its function. Anyway, to reset the copier I tried the same steps I would for a Minolta DI, and then I reset the AA board pressing the reset button. Nothing worked, and I’m not sure what I’m missing to reset. Thanks. Answer: Change the AA board if the code doesn’t go away after you reset, it might be stuck in memory. Question: Hi guys, would somebody tell me the steps to reset? Thank you. Answer: Sorry, I thought you were a user. Press reset, wait for the Konica Minolta logo, and you should see an asterisk * at the left margin in the middle of the screen. Press 3 as soon as * appears, then trouble reset, enter/exit. Copier should abort & power back up o.k. Subject: KM 2020 Question: My Kyocera Mita KM 2020 keeps giving blank copies. I cleaned the coronas, checked the connectors etc., to no avail. Any idea what could be the reason? Thanks in advance. Answer: I don’t know if your copier is making white or dark blank copies. I would check drum unit, dv unit, exp. lamp, and the voltages on corona charge PWB GL. Answer: If it’s blank, I would check the dev and drum to confirm they’re turning. Also, try jamming the machine with the paper at the drum and check for an image on the drum. This will confirm or eliminate a transfer problem. Answer: Print internal reports to eliminate Scanner/CCD. This is a barebones 2050 if I’m thinking correctly. Is it a new box? Was the DV initialized correctly? Is the DV unit engaged and do you have drum ground? Answer: Blank = blocked laser?? I’ve just had one with a lot of dust blocking the laser enough to not print. Has someone worked on it before you? They may have buggered the laser unit position just enough not to have hit the drum. Oh the fun of following other techs at times. And yes, I get the weird problems handed to me. Subject: Canon IR-3300 paper feed Question: I replaced the entire paper feed unit and still have the same problem. There’s a huge grinding noise, but I can’t see any worn gears or chips or debris. Bottom cassette still won’t feed, although it now lifts properly. Upper will feed ok for 20-25, then suddenly no feed, not even a little. Recycle or reset and it works next time, no paper movement when this happens. Replaced all feed rollers on the new (actually used from a trusted source) feed unit-no help. Machine has 580K. I’m wondering if it could be the main motor drive gear like what used to happen on other old Canons. I haven’t stripped it down to find it, just a guess. When that happened, you always needed a motor—no separate gear available. Tired of this whole thing and hate losing a $1600 per year contract but... It’s a state agency and will buy new machine on state contract so I’ll be gone for good, but I’m kind of looking forward to that!!! However, if there is a nice short easy answer that doesn’t require me to spend a lot of $$ on “guess worthy” parts, I’m all ears. Thanks guys. Answer: Cheat the right side door and see what happens when you hit the start button. Does it grind when you try to feed from the upper cassette? How many cassettes 2? 4? Watch the lower port and see what happens as far as the feeding and grinding. You said that it did this with another feed unit correct? If that’s the case then it is safe to assume it’s not the CFU but something else. Does it grind when it is warming up, or only when copying? When it grinds but feeds does it jam? Where? What jam codes? Which end of the machine is the noise coming from? Question: Let’s see if I can answer these intelligently. 1st answer: I am embarrassed to say I don’t know what jam codes you mean. It shows the symbol for jamming at paper feed but nothing else in display other than ‘jam”. No intelligence there. Next answer. It does not grind in warm-up, only when it starts to feed paper. It will sometimes run 15-20, grinding for each sheet, without a jam. The grind stops and starts with paper feed. I tried disconnecting the motor that is above the feed unit. That is apparently reg. motor. It still grinded (ground?) and then jammed when paper got to reg roller. Grinds the same way from low cassette but I think (I’m not sure now) paper never leaves the lower cassette. I don’t remember if I checked to see if low rollers were turning (easy to do with top cassette out but I was burned out by then). Machine has only two cassettes. Dummy-me-I forgot to test bypass to see if it grinds then. Answer: Jam codes are found in s/m. If you’re not sure how to access email me and I will get that info to you once you get jam codes. We may be able to point you in the correct direction. Answer: I have had a problem recently similar to this one on an IR3300 PFU. Remove the PCB from the PFU and then remove the cover behind it exposing the awful job that is the PFU lifters and drive assy. I’ve emailed you a link to some pics of a strip down on a GP405 PFU (very similar) which might help you; unfortunately it does not show the motor and gear in the next para. Right now, inside the cover that you removed is a small motor and a gear which travels up and down in a slotted channel depending on the direction of rotation of the motor. I have had the centers of that gear wear and cause noise and feed problems. Tips appearing in this section are reprinted courtesy of Smarka! The Copier Tech’s Info Source. Tips are randomly selected from submissions emailed to Smarka! Smarka! and ENX Magazine make no guarantees as to the accuracy of tips presented here. Email your tips to Tips@smarka.com.  All tips become public domain.