Is this a bad drum?

[Guest]

I'm attaching the service mode prints I get. The black on my Ricoh MPC2500 is AWFUL - printing splotchy.

Is this a bad black drum unit? That is my best guess, but I'm looking for other opinions.

Thanks!

[gernah]

I'm attaching the service mode prints I get. The black on my Ricoh MPC2500 is AWFUL - printing splotchy.

Is this a bad black drum unit? That is my best guess, but I'm looking for other opinions.

Thanks!

Sir,good day!can you give me a exact no. of prints of your machine so that I can answer you briefly because every pm parts theres a life span maybe its over already.have a nice day,im waiting for your reply thanks

[kduray]

Black - 31,834
Color - 46,345

for a total of: 78,179

[TonerMunkeh]

That looks more like the laser shutter to me. Have you updated the firmware?

[dyodyo]

it looks like laser or charge roller for the black drum. there is a long stick attached inside the cover, have you done cleaning the laser mirror by this stick? if you do and still the same prob, check on the charge roller for the black drum, maybe it is full of toner causing this bad copy.
hope this will help. good luck buddy!

[kduray]

Yes, I did the cleaning. I'll check the charge roller. How do I update the firmware?

[rthonpm]

Looks like a laser shutter to me. I've seen the charge rollers leave debris on lines behind when they start to fail. You're just not getting the exposure from the laser to write the image properly.
Firmware is your solution. It's on the TSC/TESSA website, or can be done by a certified technician.

[aabarnes1]

I'm attaching the service mode prints I get. The black on my Ricoh MPC2500 is AWFUL - printing splotchy.

Is this a bad black drum unit? That is my best guess, but I'm looking for other opinions.

Thanks!

I'd be lookin at either the laser shutter or the charge roller on the drum. But it's always a good idea to have the latest system and engine firmware. ps how did you print off the first test pattern, not the acc the 1st one?

[gernah]

Black - 31,834
Color - 46,345

for a total of: 78,179

Sir,clean 1st charge roller assy,if still the same update the firmware,and if still the same,clean the laser unit.goodluck

[kduray]

So, I've gotten a new Black PCU and updated the engine and printer firmware. Now, things are looking much better, BUT black text is coming out fuzzy. I've attached a scan of two prints, one from a PDF and the other from a native InDesign file (design software).

What else shoud I do? I'm lost.

[Vulkor]

I look forward to hearing the Fix for this.

You just did Engine and Printer? Not all Firmware?

[kduray]

Yes, only the engine and printer firmware - is there another I should update?

[Shadow1]

If you're going to update firmware, its best to do it all - sometimes there are incompatibilities between versions.

Your fuzzy black line is likely caused by toner scattering from the thickness of the layer created when the pdf file prints process black (C+M+Y+K instead of just K) and is typical of what I see on this machine.

I have a feeling your ID sensors are dirty and its got the process control hosed. Clean everything up (including the scanner), and run an ACC - that will force Line Position and ProCon. Then repeat your test images - one process control cycle may not fully correct the problem, but you should see an improvement.

[blackcat4866]

I'd have to agree with Shadow. PDFs do tend to fuzz out heavy black line when created as composite black, even when color registration is perfect.

[Vulkor]

If you're going to update firmware, its best to do it all - sometimes there are incompatibilities between versions.

Your fuzzy black line is likely caused by toner scattering from the thickness of the layer created when the pdf file prints process black (C+M+Y+K instead of just K) and is typical of what I see on this machine.

I have a feeling your ID sensors are dirty and its got the process control hosed. Clean everything up (including the scanner), and run an ACC - that will force Line Position and ProCon. Then repeat your test images - one process control cycle may not fully correct the problem, but you should see an improvement.

I was going to say the same thing about Firmware. I've been told ALWAYS Do them All. But Read the PDFs. Many of them need all of them to work right.

Portion I bolded above is what I thought too, but was uneasy in saying. Hate to be wrong. I did learn something about things in your last paragraph.


blackcat4866
"I'd have to agree with Shadow. PDFs do tend to fuzz out heavy black line when created as composite black, even when color registration is perfect."

Yeah for some reason PDF's do tend to blast.