Question: When my customer turns this copier on in the morning and tries to make the first copy, the scanner will stay at home and jitter. After the first copy, however, the copier works fine. I think it is the scanner motor. What do you Canon techs think? Thanks.
Answer: Pin through the solenoid in the back behind the control board. The pin slides down a little and gets hung up against the bottom plate, especially in the morning when the grease is colder than normal. This solenoid switches the drive between the scanner and the lens unit. Push the pin up a little bit and scar it with needle nose pliers to keep it from sliding back down. The first time you do this, it will take about 1.5 to 2 hours, but with practice it can be done in 45 minutes. No parts are needed; they’ll just make it harder.
Answer: If that pin is sticking, shouldn’t it give a 210 error code?
Answer: I think you’re thinking of the PC-700 series machines or the NP-6012. 6016 is a big guy, similar to PC-850 or C-160. I have two other thoughts. One: I’ve seen those misbehave if the exposure lamp heater (a black thing that snaps onto the lamp) is out of position. I don’t remember what the right position is, but I think it is kind of like a sleeve that you can slide around. Two: On PC850s, weird scan problems (blanks, no copy, 1/2 scan, etc.) were solved by cleaning the front and rear scan rails with alcohol and then (I think) greasing them).
Answer: You’re right! I was thinking of the 6012 (I always get those little crossover versions mixed up). Yes, Jim is right, and I would lean heavily towards the scanner rails being the culprit. It may be a problem with the exposure lamp, but that’s not likely if the lamp hasn’t been changed recently. Those rails were frequently an issue. And if it had been a 6012, it would not always throw an E-210 error code. That solenoid flips the drive back and forth between the scanner and the lens unit, and if it was caught in between, it would cause a jitter that didn’t always code out. If it moved the wrong component, it would definitely E-210. Sorry for the confusion there.
Question: So cleaning the rails should take care of problem. Thanks guys.
Question: The left tandem tray fence was having trouble moving a stack of letter paper to the right side and I was getting SC 515 error codes. It moved a half stack fine, but any more than that it would code. I removed and lubricated the slide rail and made sure it was smooth. Then I was having it shove stacks over to test. After about 5 times, it just stopped and now the right side drive won’t lift the paper up. When I shove in the right side of the tandem drawer, it doesn’t start lifting. The display reads “Reset Paper Tray”. I checked the connector in the rear and on the right side tandem tray for paper, but there was none. I used mode, output, and tandem motor, but there is still no movement I have no ideas now and it’s frustrating because it was working when I got there. Any thoughts are appreciated.
Answer: Check the front side gate. There are two of them; they open up to allow the paper to shift from left to right. The front one has a flag that actuates a sensor. I have seen these break many times. Also, there is a middle rail where the two halves sit. Remove the feed side of the LCT and look inside. Tighten the two screws that secure this middle rail to the copier frame.
Answer: I had this happen recently. If you take off the covers (plastic and metal) you can watch the drive for the lift plate. I found that the drive shaft was turning fine but the gear that the shaft goes into wasn’t. The inside of the gear was rounded out. I chased this one a few times. It would move almost a whole stack with no problem, but when it was totally full it would code out. Hope this helps.
Answer: I agree that the gear rounds out. The gear fits on loose; I add wire into D shape between the gear and shaft to take up the slack.
Answer: Check the small half moon gear. If it’s already rounded up, replace it.
Question: You guys are awesome. I cleaned the Tray1 feed assembly, which fixed my jamming, and the half moon gear was stripped out on the inside, so 2 for 2. Thanks again!!!
Answer: Watch out for those gears - they have different part numbers depending on which end of the shaft they are on!
Question: Hi! I have a machine that throws a jam code E51 every time someone tries to duplex. The paper will be sitting on the side reversing section, but stops right before entering the duplexer. I’ve gone through all of the procedures in the handbook for E51 codes. I’ve even replaced the entire drawer assembly, side door and left side feeding assemblies from an 810 we have at the shop, even though all sensors seemed to work fine in 03 mode. The only thing I see left is the logic board. The machine works fine except for duplexing, so before I send the board off for repair and the machine is completely down, I’d like a second opinion on whether this sounds right or if there’s anything else I should try? I’d swap the LGC board with the 810, but they are different boards.
Answer: Check the pulleys in the back. I have had those crack and not reverse correctly, causing this error code. They should be tight so that you cannot slip when you manually reverse them while holding a roller.
Question: Thanks for the reply. If you’re talking about the pulleys on the rear side of the reversing section, those have been checked and even swapped with those on another machine. And the machine seems to reverse fine when doing multiple one-sided copies. (It flips the copies before sending them to the finisher). Yet I can’t get a single duplex copy through. It doesn’t seem very logical.
Question: The metal piece that holds the fuser drive motor and gear was not securely attached on the bottom. There is a pulley that operates a part on the bottom of the metal bracket that looks like it helps drive the duplex rollers ( I’m not sure exactly how it works). Anyway, it fixed the problem. I don’t know how I missed it. Thanks for your help!