MP C2051 When printing in A3 you make stripes, but not when copying.

[UNICORNico]

Good Technical Companions.
I have been with this curious problem for a few weeks, and I need a 2nd opinion. (I know the model is already somewhat old)
I put you in situation:
- When the client prints in A4, there is no problem.
- When printing in A3 (always sheets of 80g.) and more than 2 or 3 consecutive pages, the device makes a strange noise (similar to a friction or rubbing), and accompanying it, the defect that I share by the link.
- As you will see in detail, there are some black lines, which baffles me.
302 Moved

- When they copy to A3, that failure does NOT, and neither does the noise. Regardless of the number of copies.
- The device has already been changed:
PCUD Black (Image Unit + Developing Unit)
Transfer Unit + Cleaning Unit
Fuser Unit (for testing only)
Drive Unit Drum and Development

- Just in case the Firmware are updated to the latest version.

Any suggestions?

[slimslob]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

The main difference that I know of between printing and copying is spooling print jobs to the HDD. The noise could be an indication that the HDD is getting ready to fail.

[UNICORNico]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

The main difference that I know of between printing and copying is spooling print jobs to the HDD. The noise could be an indication that the HDD is getting ready to fail.

Noise does not belong to the HDD. I can confirm, it's not a rubbing noise of reading heads, or anything like that.

In fact it is a noise that can be perceived/heard as if it came from the Transfer Band or its Cleaning Unit. Or the Fuser Unit, when the Thermal Pad dries out.
Hence it is striking, because it only does it when printing (several pages in A3) and never when copying (several pages in A3).

P.S.: I will try prints and the HDD disconnected. It would be strange if the machine stopped making noise and the black lines defect (difficult to describe in text) because it did not have the HDD running.

[emiliorsg]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

Sounds like you have a vibration from a hard drum plate or PTR or ITB unit. In bk you get the same error?

[UNICORNico]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

Sounds like you have a vibration from a hard drum plate or PTR or ITB unit. In bk you get the same error?

That's what I've been thinking. But as mentioned above, these pieces have already been changed.
And the weird, weird thing is that it's only when printing.

The sound, when the defect os generated. Only when printing.

When photocopying, the noise does not appear, nor does the defect.

On a mechanical level it's the same job, that's why it has me baffled. Obviously the HDD thing can't be.

[TonerMunkeh]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

It looks like you are running the printer function on a thick paper setting, slowing the machine down. In copying is the machine running at it's normal speed? If so it sounds fuser-ish to me.

[sandmanmac]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

It looks like you are running the printer function on a thick paper setting, slowing the machine down. In copying is the machine running at it's normal speed? If so it sounds fuser-ish to me.

100% agreed.

Read through this thread.....
MPC2551 noisy fuser

[slimslob]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

That's what I've been thinking. But as mentioned above, these pieces have already been changed.
And the weird, weird thing is that it's only when printing.

The sound, when the defect os generated. Only when printing.

When photocopying, the noise does not appear, nor does the defect.

On a mechanical level it's the same job, that's why it has me baffled. Obviously the HDD thing can't be.

On a mechanical level it is not the same job. The motors are running at different speeds. If you are using a computer instead of a hand held device you can run both videos simultaneously and see the speed difference. The noise is a motor howling and the image jitter is the vibration caused by the defective motor. You can see the vibration in the paper as it exits. The clunk at the start is most likely gear backlash noise as the motor changes speed. Most likely the fusing/exit motor.

[slimslob]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

It looks like you are running the printer function on a thick paper setting, slowing the machine down. In copying is the machine running at it's normal speed? If so it sounds fuser-ish to me.

According to the specifications:

20 ppm in Plain/Middle Thick mode
12.5 ppm in Thick/OHP mode (depending on paper type)

Watching both videos simultaneously you can see that the copy speed in nearly double. Paper type is being set by the driver.

[Maged_elagamy]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

It looks like you are running the printer function on a thick paper setting, slowing the machine down. In copying is the machine running at it's normal speed? If so it sounds fuser-ish to me.

I can't agree more

double check the fusser unit

[UNICORNico]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

It looks like you are running the printer function on a thick paper setting, slowing the machine down. In copying is the machine running at it's normal speed? If so it sounds fuser-ish to me.

On a mechanical level it is not the same job. The motors are running at different speeds. If you are using a computer instead of a hand held device you can run both videos simultaneously and see the speed difference. The noise is a motor howling and the image jitter is the vibration caused by the defective motor. You can see the vibration in the paper as it exits. The clunk at the start is most likely gear backlash noise as the motor changes speed. Most likely the fusing/exit motor.

I understand what you mean the 2. Yes, I see the consistency with the issue of noise. But that would not explain why the black lines, during the noise.
The problem of noise in the Fusor, I have already had it on other occasions and I have "lubricated" it on other occasions.

[slimslob]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

I understand what you mean the 2. Yes, I see the consistency with the issue of noise. But that would not explain why the black lines, during the noise.
The problem of noise in the Fusor, I have already had it on other occasions and I have "lubricated" it on other occasions.

All I am seeing in your video is jitter caused by the motor not running smoothly. Just replace the fusing exit motor before the customer replaces you.

[UNICORNico]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

All I am seeing in your video is jitter caused by the motor not running smoothly. Just replace the fusing exit motor before the customer replaces you.

I intend to change the "fusion sleeve", but when you say the "output engine" do you mean the fuser's own motor, or the engine and the output unit?
And had problems before caused by the fuser engine itself, but never that generate noise for it (noise yes, but not in this way), in its case, jams because the Fuser does not work correctly.

Thank you all for the suggestions provided, I am being very enlightening to raise certain problems differently, for the future.

[slimslob]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

I intend to change the "fusion sleeve", but when you say the "output engine" do you mean the fuser's own motor, or the engine and the output unit?
And had problems before caused by the fuser engine itself, but never that generate noise for it (noise yes, but not in this way), in its case, jams because the Fuser does not work correctly.

Thank you all for the suggestions provided, I am being very enlightening to raise certain problems differently, for the future.

I do believe that I original specified the Fusing/exit motor.

[luca72]

Re: MP C2051 When printing in A3 you make stripes, but not when copying.

Good Technical Companions.
I have been with this curious problem for a few weeks, and I need a 2nd opinion. (I know the model is already somewhat old)
I put you in situation:
- When the client prints in A4, there is no problem.
- When printing in A3 (always sheets of 80g.) and more than 2 or 3 consecutive pages, the device makes a strange noise (similar to a friction or rubbing), and accompanying it, the defect that I share by the link.
- As you will see in detail, there are some black lines, which baffles me.
302 Moved

- When they copy to A3, that failure does NOT, and neither does the noise. Regardless of the number of copies.
- The device has already been changed:
PCUD Black (Image Unit + Developing Unit)
Transfer Unit + Cleaning Unit
Fuser Unit (for testing only)
Drive Unit Drum and Development

- Just in case the Firmware are updated to the latest version.

Any suggestions?

i saw the video, but it seems to be missing the audio so i will go to trial, that model is famous for various noises
1) fuser with "dry" sleeve that resonates at certain speeds, the fuser costs us about 150 euros, so I usually don't waste time taking it apart
2) plastic frame of some pcu that vibrates due to the cleaning blade that resonates, if so, and it is not old, you could stick a flat metal weight with strong double sided tape, somewhere in the frame, to weigh it down and move the frequency, on some ricoh models they are already standard, test output check drum and more to find which one, and test at various speed (remove waste toner box for not blow the sleeve)


for equidistant lines, it looks like the image reading sensor