MP 3352 gave loud sound when printing and machine jam

[ttean]

Hi got one unit mp3352 machine get into ready state. When trying copying from tray 1 or tray 2 machine gave a loud sound and jam. I check paper not coming up from either tray 1 or tray 2. I try to use bypass and see, paper goes in a bit and gave a loud sound and jam there. I have already change the main motor assembly and it still gave the same symptoms. Any idea what cause this issues. Thx

[slimslob]

Re: MP 3352 gave loud sound when printing and machine jam

Check the PCU. You may have a jammed development unit that is stripping one of the gears in the main drive box that the main motor drives. Replace the gear box D120 1027 Bracket: Drive: Drum: Ass'y

[TonerMunkeh]

Re: MP 3352 gave loud sound when printing and machine jam

I've had the main motor shred due to developer contamination a few times. I've replaced the main motor, the PCU drive bracket and the PCU if it is leaking. D120 1027 for the bracket, AX060402 for the motor, D120 3000 for the PCU and B1219645 for the dev.

[anothertech]

Re: MP 3352 gave loud sound when printing and machine jam

Go into IO mode and run the motors to chech for the noise. Try to run the motors with the PCDU removed.

[GIUBOSS]

Re: MP 3352 gave loud sound when printing and machine jam

unusual the copier does not give an error code such as sc500.
First you had to check the pcu !! It may be that from the two drawers it does not pick up because the rubber pads are worn or dirty, the bypass may not be fully functional. Take out the pcu and check the inside that there is no toner / developer scattered. In the back of the pcu there is a notched bushing try to move it by rotating it, the correct way is to push where you can rest your fingers well

[slimslob]

Re: MP 3352 gave loud sound when printing and machine jam

unusual the copier does not give an error code such as sc500.
First you had to check the pcu !! It may be that from the two drawers it does not pick up because the rubber pads are worn or dirty, the bypass may not be fully functional. Take out the pcu and check the inside that there is no toner / developer scattered. In the back of the pcu there is a notched bushing try to move it by rotating it, the correct way is to push where you can rest your fingers well

The first few times a development unit binds on a machine it will give SC500. The PCU is repaired/replaced and all is well until the next time. Eventually one of the nonmetal gears in the gear bx/plate will become damaged enough for the motor to be able to spin against that gear and make a loud grinding noise. Two of the items driven off the gear that has become damaged and is not turning are the development unit and the paper feed.

[mga]

Re: MP 3352 gave loud sound when printing and machine jam

Hi got one unit mp3352 machine get into ready state. When trying copying from tray 1 or tray 2 machine gave a loud sound and jam. I check paper not coming up from either tray 1 or tray 2. I try to use bypass and see, paper goes in a bit and gave a loud sound and jam there. I have already change the main motor assembly and it still gave the same symptoms. Any idea what cause this issues. Thx

Does it happen warn you turn the machine on for warm up or only when you try to copy/print

[KeviM]

Re: MP 3352 gave loud sound when printing and machine jam

From your description it looks like the guys have given you the correct diagnosis of the problem. Slimslob especially seems to be right on the money.

The only other things I can suggest is if you don't have another PCU to swop into that 3352 and test if that's the cause of your problem is slide that PCU out and check for any signs of leaking developer or damaged gear residual (normally a grey or black powder). Also to do a quick test of the PCU unit you can remove the Dev drive gear on the back off the PCU unit and test the unit for 1 print. If the noise stops then the problem resides in dev unit of the PCU.

Hope this helps.

[KeviM]

Re: MP 3352 gave loud sound when printing and machine jam

The gear I refer to , to remove and test is number 12

I believe the developer gears that strips and gets damaged that Slimslob was talking about is numbers 15 and 16. Those are visible but there another 3 gears below those that get damaged which Slimslob is talking about as well ( I believe)images (49).jpg

[slimslob]

Re: MP 3352 gave loud sound when printing and machine jam

The gear I refer to , to remove and test is number 12

I believe the developer gears that strips and gets damaged that Slimslob was talking about is numbers 15 and 16. Those are visible but there another 3 gears below those that get damaged which Slimslob is talking about as well ( I believe)[ATTACH=CONFIG]47653[/ATTACH]

From your description it looks like the guys have given you the correct diagnosis of the problem. Slimslob especially seems to be right on the money.

The only other things I can suggest is if you don't have another PCU to swop into that 3352 and test if that's the cause of your problem is slide that PCU out and check for any signs of leaking developer or damaged gear residual (normally a grey or black powder). Also to do a quick test of the PCU unit you can remove the Dev drive gear on the back off the PCU unit and test the unit for 1 print. If the noise stops then the problem resides in dev unit of the PCU.

Hope this helps.

If the gears on the development roller assembly strip that usually removes the load on the motor and there will be really bad quality but no motor lock or jamming. If you have black or grey powder down around the gears of the development unit, the unit is toast. That powder is depleted developer that has worked it way through the bushings on the back ends of the augers. The developer in the bushings is one of the things that causes the unit to bind. The other cause is the small opening between the two augers at the back of the unit can become clogged. A spring hook or bent paper clip can be used to clean out the opening.

[ttean]

Re: MP 3352 gave loud sound when printing and machine jam

I have replaced a new motor AX060402 and also D120 1027 for the bracket with the gears together. I have also swap another pcu from another machine which is working well. When I power up tthe machine it goes into ready state without any loud grinding sound. Only when I try to copy from tray 1 or tray 2 it gave a loud grinding sound and jam. Anyone comes across this problem before. Thx

[slimslob]

Re: MP 3352 gave loud sound when printing and machine jam

That put us down into the paper feed drive. Looking at the parts catalog I see that there is a belt tightener for the belt that goes from the registration clutch to the 1st transport clutch and then down to the first feed clutch. If that tightener is loose the belt could start jumping timing teeth (noise) as soon as any load is put on it.

[KeviM]

Re: MP 3352 gave loud sound when printing and machine jam

Nice explanation by Slimslob. It does sound like the drive for the paper trays. Remove back covers, try to do a copy and keep an eye on the drive feeding the trays. Also you could try removing the 1st paper tray and doing a copy from the 2nd tray. At this point you will be able to view what is happening in the paper tray.

But , it does seem like a drive problem for the trays like Slimslob said. Check that first. Check that belt tensioner.

[ttean]

Re: MP 3352 gave loud sound when printing and machine jam

It is not the main motor or the the bracket D120 1027 gearbox as I have replaced that from another machine that is functioning well. Also the pcu unit not those problem. When powering up and going to ready state there is no loud grinding sound. Only when trying to copy from tray 1 or tray 2 it gave a loud grinding sound and jam every time. I have not face this issues before during field repairs for this model of copiers.

[ttean]

Re: MP 3352 gave loud sound when printing and machine jam

Okay I will check for the belt tightener when I visit that customer again. Thx for all the feedback I received it really help. Thx