Faint Black on Ricoh MPC2003 color pattern, copy and printout.

[Pixtech Frameworks]

Hi All,
I am stuck with this customer Ricoh MPC2003 that has a faint black on color pattern and generally, print and copy. I've installed a new OEM developer, OEM toner, clean optics, cleaned laser shield, check toner hopper if the toner augler is broken, and have tried virtually all what I know, but to no available. Any solution will be appreciated or if there's any adjustment to do on system sp.

[copyaction]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Hi All,
I am stuck with this customer Ricoh MPC2003 that has a faint black on color pattern and generally, print and copy. I've installed a new OEM developer, OEM toner, clean optics, cleaned laser shield, check toner hopper if the toner augler is broken, and have tried virtually all what I know, but to no available. Any solution will be appreciated or if there's any adjustment to do on system sp.

Have you replaced the PCU?
In addition this procedure has been mentioned before:

Check value Sp 3201-001 if it is 3.5v or higher then do the following


Sp 3201-001 set value to 4%. (mine was at 9% to start)
after change make 1 copy or print internal test pattern this applies the value of the change you just made.


Execute SP 3050-003 three times (Toner add for black i believe it was.)


Check the value of SP 3200-001
if the value is 4 or higher your done if it is less then 4 repeat the above steps until it is 4 or higher.


This is bottom half of TSB #6 on the 2003/2503, the first part of the tsb is for light image only on lead or trail edge, this part i gave you resolves the whole page being light.

[Pixtech Frameworks]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Ok copyaction. I'll do all what you write and get back asap.

[CopyBats]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Did you connect the ground plate cover for the Drum correctly? When you installed new developer did you indicate that in the machine by going into SP 3701 and manually setting black developer?

Once you indicate that it is manually set, turn off the machine from the main power switch and then turn it back on.

Hi All,
I am stuck with this customer Ricoh MPC2003 that has a faint black on color pattern and generally, print and copy. I've installed a new OEM developer, OEM toner, clean optics, cleaned laser shield, check toner hopper if the toner augler is broken, and have tried virtually all what I know, but to no available. Any solution will be appreciated or if there's any adjustment to do on system sp.

[slimslob]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

All colors on you color gray scale you posted are weak. Normally caused by a dirty ID sensor, dirty optics or both. Clean the ID sensor assembly and the area around it. Completely clean all dust, toner residue and filming from all scanner components. There is a possibility that white reference calibration when power is turned back will correct most of your problem. To optimize quality run Auto Color Calibration in User Tools. Do copy first as that will adjust the scanning. At one time there was an information letter put out that recommended running ACC anytime firmware was updated.

[Polarbear]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Hi All,
I am stuck with this customer Ricoh MPC2003 that has a faint black on color pattern and generally, print and copy. I've installed a new OEM developer, OEM toner, clean optics, cleaned laser shield, check toner hopper if the toner augler is broken, and have tried virtually all what I know, but to no available. Any solution will be appreciated or if there's any adjustment to do on system sp.

Have you checked the pipe between the hopper and the dev unit? It is a rectangular vertical piece of plastic, that connects the toner hopper to the dev unit. If this is blocked, the toner will not get to the dev unit and copies will be feint.

[Pixtech Frameworks]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Auto Calibration had been done several times, but to no avail.

[Gift]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

I think it's not just black looking faint. Did you check a different paper, perhaps it's too moisty or dry or rough on the surface? Also keep the ID sensors clean as stated before.

Otherwise you can perform force toner supply via SP to "revive" old DV units and initialize the devs again but I wouldn't recommend that if the result looks faint
with a brand new DV unit.

[skynetto]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Whats the status of the trasfer/separation unit?
Check if it is properly grounded.
Check if the transfer roller is properly touching the ITB housing at sides. if one or both of housing is broken the roller falls a bit down giving you faint prints.

[mga]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Hi All,
I am stuck with this customer Ricoh MPC2003 that has a faint black on color pattern and generally, print and copy. I've installed a new OEM developer, OEM toner, clean optics, cleaned laser shield, check toner hopper if the toner augler is broken, and have tried virtually all what I know, but to no available. Any solution will be appreciated or if there's any adjustment to do on system sp.

What pcu pm life also did you replace complete dev assy {new} or was it used or just developer

[slimslob]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Auto Calibration had been done several times, but to no avail.

But were the optics properly cleaned first.

[FrohnB]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

What was the PM count for the developer? Developer and PCU have the same expected yield of 60k, and we nearly always replace both at the same time.

If you do/ did replace the PCU, you have to input the correction coefficient (there's a label on the PCU that gives you this info) into SP 2-005-235 (K), and set SP3-701-002 (Manual New unit set) to "1" before turning the machine off and replacing the part. Upon restarting the automatic initialization of those settings takes place.

The same goes for when you replaced developer. Set SP 3-701-003 to "1", turn machine off, replace part, turn back on.

I don't believe you can get just developer powder for this series, so if you replaced the development unit, that entails "splitting" the PCDU unit. I've seen where the contact plate/ cover on the back of the unit doesn't get put back on, and you get problems like the ones you're having.

Otherwise, you're looking at maybe a bad black transfer roller in the ITB unit.

My money is on development or drum unit though.

[luca72]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

Hi All,
I am stuck with this customer Ricoh MPC2003 that has a faint black on color pattern and generally, print and copy. I've installed a new OEM developer, OEM toner, clean optics, cleaned laser shield, check toner hopper if the toner augler is broken, and have tried virtually all what I know, but to no available. Any solution will be appreciated or if there's any adjustment to do on system sp.

didn't you forget to reassemble the back cover of the pcdu?
in any case... clean ID sensors, and run the sp process control routine (all) via sp process.

p.s. don't trust too much of that sp printer test, it could be the bugged firmware and print it bad anyway, even with the machine in perfect state, its happened to me, and someone here on the forum a long time ago.

[Pixtech Frameworks]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

I reassemble the pcdu back cover, still no luck. Am suspecting the firmware, probably upgrade is needed.

[Pixtech Frameworks]

Re: Faint Black on Ricoh MPC2003 color pattern, copy and printout.

This didn't work either, still faint as before.