MPC3003 Light copies

[Oze]

Hey all...
I have an MPC3003 in the field that needed a black pcdu replaced.
Before I did the service I noticed that the copies from the ADF and Platten were really pale.
Swapped in the new pcdu and ptr assy.
Cleaned the laser slit glass,optics etc.
Copies were STILL shocking.
Returned to the machine the next week(it's 2 hours from the workshop) and fitted a new lamp and SIO board...
A very slight improvement but still not as good as the print engine.
Any ideas?

[Phil B.]

Re: MPC3003 Light copies

Hey all...
I have an MPC3003 in the field that needed a black pcdu replaced.
Before I did the service I noticed that the copies from the ADF and Platten were really pale.
Swapped in the new pcdu and ptr assy.
Cleaned the laser slit glass,optics etc.
Copies were STILL shocking.
Returned to the machine the next week(it's 2 hours from the workshop) and fitted a new lamp and SIO board...
A very slight improvement but still not as good as the print engine.
Any ideas?

did you clean white plate and adjust?

Ricoh toner or 3rd party?

need more info

[Oze]

Re: MPC3003 Light copies

did you clean white plate and adjust?

Ricoh toner or 3rd party?

need more info

Ricoh Toner Phil.
Checked the white plate and the SP settings against the BC.
I logged the job as a support job with Ricoh support....figured I'd get faster tips from you guys

[Phil B.]

Re: MPC3003 Light copies

Ricoh Toner Phil.
Checked the white plate and the SP settings against the BC.
I logged the job as a support job with Ricoh support....figured I'd get faster tips from you guys

how far off were VT et al bias setting?

[Oze]

Re: MPC3003 Light copies

VT and bias settings were within spec.
I HAVE had the odd pcu where I've forgotten to put the bias plate back on before fitting it back into the machine and it's kinda a similar look...but that tends to affect EVERYTHING....printing and copying both.
Also...
I scanned from the glass into the doc server and it looked like shit as well...that's why I'm thinking it's more scanner related than bias.

[slimslob]

Re: MPC3003 Light copies

Clean the optics including all mirrors then run Auto Color Calibration in User Tools - Maintenance. Do all copier and printer. At one time Ricoh recommended doing ACC after all firmware updates.

[ridgemill]

Re: MPC3003 Light copies

Have you remembered to replace the rear plate of the PCDU? It has a grounding plate, which when not present causes faint copies.

[Oze]

Re: MPC3003 Light copies

VT and bias settings were within spec.
I HAVE had the odd pcu where I've forgotten to put the bias plate back on before fitting it back into the machine and it's kinda a similar look...but that tends to affect EVERYTHING....printing and copying both.
Also...
I scanned from the glass into the doc server and it looked like shit as well...that's why I'm thinking it's more scanner related than bias.

[slimslob]

Re: MPC3003 Light copies

I scanned from the glass into the doc server and it looked like shit as well...that's why I'm thinking it's more scanner related than bias.

ACC should correct that. In running ACC, the machine first prints a stored color grey scale pattern. It then scans that printed pattern, compares the scanned pattern to the stored pattern and adjusts scanning levels to compensate.

[Phil B.]

Re: MPC3003 Light copies

ACC should correct that. In running ACC, the machine first prints a stored color grey scale pattern. It then scans that printed pattern, compares the scanned pattern to the stored pattern and adjusts scanning levels to compensate.

Slim, not to Q you on this..
But doesn't it do both thru the process? Been a while Bro.

Sent from my SM-G960U using Tapatalk

[copier tech]

Re: MPC3003 Light copies

Hey all...
I have an MPC3003 in the field that needed a black pcdu replaced.
Before I did the service I noticed that the copies from the ADF and Platten were really pale.
Swapped in the new pcdu and ptr assy.
Cleaned the laser slit glass,optics etc.
Copies were STILL shocking.
Returned to the machine the next week(it's 2 hours from the workshop) and fitted a new lamp and SIO board...
A very slight improvement but still not as good as the print engine.
Any ideas?

[mikadonovan]

Re: MPC3003 Light copies

still not as good as the print engine.

I have noticed over the years the copies are never quite as good as the prints. I explain to my customers that the extra layer of hardware and processing for copies is the cause, like comparing a second generation image to the first. Still good, but not quite the same. However, looking at the images you uploaded, the copies look like they could be improved upon (unless the upload scan to CTN was kind of f#%ked up).

[FrohnB]

Re: MPC3003 Light copies

You're on the right track with something in the scanner section. Mirrors "fogged"? I have noticed this sometimes after cleaning optics, and have to re-clean.
Also, have you tried cleaning or replacing the "Lens Assembly" over to the right? About the only other part to try since you said you did the LED lamp, and SIO board.

[slimslob]

Re: MPC3003 Light copies

Slim, not to Q you on this..
But doesn't it do both thru the process? Been a while Bro.

Sent from my SM-G960U using Tapatalk

If you are talking about process control, NO. Process control can does line correction and toner density control by reading the patches on the ITB. It has no way to compare a scanned image to a stored image.

[Oze]

Re: MPC3003 Light copies

Looking at your scan sample I would not say its really pale or “shocking”
Did you replaced the complete PCDU or just PCU?
Have you updated the firmware? No mention of this.

Replaced the complete PCDU and I DID notice that the scanned upload doesn't look as bad as it does first hand.
Firmware was updated on the first visit.
Slim might be onto something with the ACC...I might try and restore the previous ACC and see if it changes.