Problem in MP C 2011

[AjitN]

Re: Problem in MP C 2011

Try SP 7803 PM Counter Display



But the PM Counters will give you a definite starting point. That is provided that you replace parts when recommended and reset the associated PM counter. If you do not reset the counter, the next tech to work on the machine will have no idea when they were replaced.

Sir
I do agree with you. As I said counters on PM scheduled are important, but even over, much over life parts can start giving same patterned bands in all colors together?

I am going to try ITB Contact sensor, ITB contact motor & ITB HVPS. In my opinion if contact motor OR Contact sensor OR ITB HVPS is malfunctioning, this kind of problems can be displayed.
Looking forward for your suggestions / Views.

Regards

[Phil B.]

Re: Problem in MP C 2011

Sir
I do agree with you. As I said counters on PM scheduled are important, but even over, much over life parts can start giving same patterned bands in all colors together?

seems you don't take other techs suggestions...

WHY THE HELL WOULD YOU LEAVE OVER LIFE PARTS IN A MACHINE? Do the PM's when scheduled .. RESET the counters ..... keep records on the machine WHAT was done.

[AjitN]

Re: Problem in MP C 2011

seems you don't take other techs suggestions...

WHY THE HELL WOULD YOU LEAVE OVER LIFE PARTS IN A MACHINE? Do the PM's when scheduled .. RESET the counters ..... keep records on the machine WHAT was done.

Sir
Machine has done only 30K prints. Machine faced sleeve problem once couple of months back. Otherwise there was no problem at all.
Please try to understand what I am saying -
Definitely life of the parts are not over. My only point is even if life is over for all the PM parts, has anybody seen such eqi-distance faint bands suddenly starts during print run in all 4 colors?. and the best part is images on the drums & ITB is even / good. So I am confused and feel life of the part may not be a cause.

Hope I made my views clear to team

Regards

[FrohnB]

Re: Problem in MP C 2011

has anybody seen such eqi-distance faint bands suddenly starts during print run in all 4 colors?. and the best part is images on the drums & ITB is even / good.

Okay, so life of the parts may not be an issue if it's only 30k, but can't rule out early failure of units. In the quote you say, image on drum and ITB is even/ good.??? In the second picture you provided, you can clearly see that the magenta calibration strip is obviously not "even/ good"....I think you're going in the right direction with suspecting ITB parts/motor/sensor, but in my experience, we've always had problems with the ITB unit itself, especially at that low of a count. Not a huge fan of this series, seems like they rushed through production for them (scanner rails, toner hoppers, SQUEAKS EVERYWHERE, early failures of nearly every unit, and cost of parts is outrageous).

Good luck on your troubleshooting. And be sure to post back what actually fixes it.

[luca72]

Re: Problem in MP C 2011

Sir
Machine has done only 30K prints. Machine faced sleeve problem once couple of months back. Otherwise there was no problem at all.
Please try to understand what I am saying -
Definitely life of the parts are not over. My only point is even if life is over for all the PM parts, has anybody seen such eqi-distance faint bands suddenly starts during print run in all 4 colors?. and the best part is images on the drums & ITB is even / good. So I am confused and feel life of the part may not be a cause.

Hope I made my views clear to team

Regards

,

Hi, I do not know if you have tried what I suggested you days ago, however in the image number 2 you can clearly see the yellow pattern on the itb belt its very good, instead in the image number 3 on the print is completely absent, in photo number 2 also sees the cyano pattern a little removed in the middle which makes me think that the ptr roller mechanism does its work of contact, if the mc has only 30k prints is prartically new, I would exclude the bad luck on all four pcdu, so it makes me think that the problem is actually the card or something in the wiring, I before going to the hvt-board I would try to remove the plastic covers that allow me to access the cables / contacts between the card and duplex / ptr and try to move them during a print and see them full color and see what happens, if it is not a contact interface problem, maybe use rubber gloves and an isolated tool, for the card I do not know, here in Italy (I do not know if there is again) the ricoh rent me the card to do some tests, if I remember correctly 10% or 30% of the retailer price, then if you kept it billed, I do not even remember if 2011 has the hvt card of the ptr or is intergrated in power, if it were two separate pcb (power supply-hvt x ptr) you could with the point to point to see with a multimeter if pws provides voltage and consens signal to the hvt-board, sometimes also have tp point to test the signal line patch, now I'm at home, and in this moment I do not have time to connect, to the portal ricoh, tomorrow I look if it is feasible what I said, if I send you the ptp ,see you soon

[AjitN]

Re: Problem in MP C 2011

Team
Thank you for your suggestions & Support.

If you allow me let me explain case study in more details -
Customer is at about 7 hrs drive and just logged complained about faint bands. Visited customer without any parts in hand. Checked overall machine. Machin dis 30K only and problem started at 22nd copy of 30 prints job. First 21 prints ware absolutely perfect with solid colors. Problem exhibited before Fixing. Image on belt was OK ( Image no 2) Image no 1 shows solid patch of 4 colors with eqi-distance light bands ( please note that colors are reproduced but faded)

On second Visit following activities done -
Again checked all PCDU & ITB for jamming and condition.
For intermittent fluctuations in PCDU HV - Replaced HVP CB
For Intermittent charging of transfer roll in ITB - Replace ITB HVP TTS.
Replace PSU - Ac+Dc
Replace PTR with Door Assy.
Replace IPU
Motors - Transport & PCU ( Black & ITB drive).
Problem was not resolved

I have a doubt & I will appreciate any suggestion /inputs from Team.

I am doubting on PTR Contact motor OR PTR Contact Sensor OR PTR Door close Sensor. Motor is with gear box and we cannot check the rotation easily. Also movement of
ITB will be so minute that we cannot observe in running. My logic is if image on belt is ok and before fixing there is problem, it should be due to paper transfer.
If motor is malfunctioning possibly PTR & ITB gap may be veering slightly causing uneven transfer on paper.

Please suggest
Regards & Thanks in advance

[slimslob]

Re: Problem in MP C 2011

Team
Thank you for your suggestions & Support.

If you allow me let me explain case study in more details -
Customer is at about 7 hrs drive and just logged complained about faint bands. Visited customer without any parts in hand. Checked overall machine. Machin dis 30K only and problem started at 22nd copy of 30 prints job. First 21 prints ware absolutely perfect with solid colors.

I have seen this with Production model where the toner is being depleted faster than the machine can compensate for. With them the cure was to increase the frequency of normal process control and turn on process control during print runs. As this model was not sold in the US, as do not have access to the service manual so can not recommend what SP to change.

The attached .pdf might help but it was written for older color machines and the SP numbers may have changed.

Service Program (SP) Settings.pdf

[AjitN]

Re: Problem in MP C 2011

[QUOTE=slimslob;715910]I have seen this with Production model where the toner is being depleted faster than the machine can compensate for. With them the cure was to increase the frequency of normal process control and turn on process control during print runs. As this model was not sold in the US, as do not have access to the service manual so can not recommend what SP to change.

The attached .pdf might help but it was written for older color machines and the SP numbers may have changed.

Sir
Thank you for support. I will definitely try this solution

Regards

[NeoMatrix]

Re: Problem in MP C 2011

Moist card stock from old supplies sitting around open to the air???

As a test:
Do a manual double sided copy and see if the same card stock is better copy on the second side.
Or run the card stock through fuser first and then do a single test copy.

[AjitN]

Re: Problem in MP C 2011

Team
This problem is resolved by replacing HVP_TTS and loose connection at CN 802.

Thank you everyone for those suggestions & Support.