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 Ricoh pro c751ex
Just received a pdf brochure on this Ricoh pro c751ex. Is this their new production machine?
Or do they have a beefier production machine. It says 1200 x 4800dpi are they smoking something?
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The 901s is still their flag ship production machine, the 651/751 is a notch down. From the looks of the machines I would say they took what they learned from the 901's built on it and made this series. As for the resolution it's the old 8 bit vs 1 bit trick, my advice is ignore all companies claims to dpi. If it looks good and I can sell it thats all I need to know, I have seen the 651, quality is acceptable and sellable to my market.
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Resolution
 Originally Posted by MacDaddy
Just received a pdf brochure on this Ricoh pro c751ex. Is this their new production machine?
Or do they have a beefier production machine. It says 1200 x 4800dpi are they smoking something?
You could say Ricoh (whom I do work for) is smoking VCSEL, or Vertical‐cavity Surface‐Emitting Laser, which is a new type of semiconductor laser with beam emission perpendicular from the top surface. Net-net, it allows a higher density of controlled laser emission, providing 40 laser channels for each toner color, and supports the high addressability and small spot size achieved in the C751. Let's face it, anything over 1200dpi in a digital printer is normally useless since toner particle size can only go so small, currently about 5 microns, and can't easily be seen by the human eye anyway. What Ricoh engineering has been able to achieve however is in other uses including magnification correction, image offset control and color line/edge refinement. What that means for example is that it can modify the magnification of the second side image in very small increments (0.025%) to keep it precisely aligned with the front side image. Lining up trim marks front-to-back becomes a non-issue. For line/edge refinement, long story short, the 651/751 is better at aligning pixel placement, reducing color fringing and fuzziness in lines and edges within the image thereby producing subtly crisper images and better thin line reproduction. Think detail and definition. These changes are made and stored in the paper catalog. Personally I think the output is crazy good but then I am biased. It is a new production machine and does share components of the 901 but with many improvements and enhancements and is meant for lower volumes than the 901 (300K vs. 400K PM interval). Each Ricoh/Ikon regional demo room has one now, they'll also be featured at GraphEx and they are shipping to customers.
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Each Ricoh/Ikon regional demo room has one now
Yup that's where I got to see one. As for the super quality, I really don't buy into all the dpi mumbo jumbo. The quality is very good to the eye and I can sell it, I really like the paper catalog as we all know how different printing on various stocks are. With this you can customize it for each stock by brand, type and weight. I only got to run a few things on it and we did not get to tweak it for front to back registration, however when I get back to the store I will be able to check sheet to sheet which is what usually gets me.
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VCSEL has been used by Xerox since 2005 in Docucolor machines like DC240/250, 7000/8000, 700, 550/560, etc.
In these Xerox machines you can set your paper profiles with alignment and transfer settings (although the max number of profiles is about 20). I think Minolta machines have the same possibility.
I don't really think Ricoh shines for innovation...except for low prices....but 6 years later is quite easy!
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We are getting a C751EX in a couple of weeks at Penn State in Erie to replace a heavily overworked C700 so I'll be able to post what the 751 is all about production wise as I'm the color operator. We run about 80k color clicks a month, about half of which is heavy stock so I'm looking forward to the duplexing capabilty the 751 will give on heavy paper over the 700, along with having the CRU's, which was a BIG issue with the 700 as the only things the operator can replace on it are the silly toner "bags" and the waste bottle.
During heavy stints of running the 700 would have about 3 service calls a week for poor print quality. I'm hoping the production capabilty of the 751 will reduce service calls dramatically, though I can't blame the 700 completely for its lackluster performance as it wasn't the right machine for this environment to begin with, it's really just a glorified office color copier and not a production machine. Running the 700 here for a year made me miss the little Xerox DC250 I ran at my old job, as it was far better than the C700. But, in what I have been reading, I have high hopes for the C751 here.
-Mark-
Last edited by MarkPalmer; 09-08-2011 at 07:11 AM.
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Originally Posted by MarkPalmer
We are getting a C751EX in a couple of weeks at Penn State in Erie to replace a heavily overworked C700 so I'll be able to post what the 751 is all about production wise as I'm the color operator. We run about 80k color clicks a month, about half of which is heavy stock so I'm looking forward to the duplexing capabilty the 751 will give on heavy paper over the 700, along with having the CRU's, which was a BIG issue with the 700 as the only things the operator can replace on it are the silly toner "bags" and the waste bottle.
During heavy stints of running the 700 would have about 3 service calls a week for poor print quality. I'm hoping the production capabilty of the 751 will reduce service calls dramatically, though I can't blame the 700 completely for its lackluster performance as it wasn't the right machine for this environment to begin with, it's really just a glorified office color copier and not a production machine. Running the 700 here for a year made me miss the little Xerox DC250 I ran at my old job, as it was far better than the C700. But, in what I have been reading, I have high hopes for the C751 here.
-Mark-
Hehe, you see that's why I never got a X700 and those jobs who require "glossless" effect are ran on dc250, the other production jobs on dc5000 or dc8000. I'm also searching for a machine to replace my dc250, so i'm looking forward for a practical review of the machine.
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Quote:
Originally Posted by MarkPalmer View Post
We are getting a C751EX in a couple of weeks at Penn State in Erie to replace a heavily overworked C700 so I'll be able to post what the 751 is all about production wise as I'm the color operator. We run about 80k color clicks a month, about half of which is heavy stock so I'm looking forward to the duplexing capabilty the 751 will give on heavy paper over the 700, along with having the CRU's, which was a BIG issue with the 700 as the only things the operator can replace on it are the silly toner "bags" and the waste bottle.
During heavy stints of running the 700 would have about 3 service calls a week for poor print quality. I'm hoping the production capabilty of the 751 will reduce service calls dramatically, though I can't blame the 700 completely for its lackluster performance as it wasn't the right machine for this environment to begin with, it's really just a glorified office color copier and not a production machine. Running the 700 here for a year made me miss the little Xerox DC250 I ran at my old job, as it was far better than the C700. But, in what I have been reading, I have high hopes for the C751 here.
-Mark-
Actually the X700 is 20-25% more productive than DC252/260, so it's clear that yout volume of 80k prints/month (for many years?) is too much higher for the machine. This is a volume for DC5000AP or KM8000.
I have a customer who swapped from X700 to X1000 after a year and 600k copies, mainly because he wanted to improve it's digital offer; but his X700 ran flawlessly.
The CRU system adopted by Xerox allows the customer to change toner bottles, toner waste, DRUM units, FUSER units, some other little parts; it sounds very strange you were not able to change everything else: maybe it depends on your tech service, but it's not Xerox standard.
X700 is a glorified office machine? yes and not; what's the border between office and production? is it volume or paper selection? kind of job?
I think that real production cutsheet machines are very few: iGen4, Xerox 1000, Xerox DC8080, Nexpress (various models), HP Indigo, (Canon VP7000), KM8000, (Ricoh 901?)
The main problem is that certain customers have production needs but office budget, and not always "sales monkey" is able to explain that you have to pay more if you want professional reliability...
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It's not a Xerox 700 we are replacing, it's a Ricoh C700EX- two totally different beasts. I liked the DC250, but at Penn State it's all Ricoh machines. The C751 is a substantial upgrade from the C700EX in the Ricoh lineup.
-Mark-
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Originally Posted by MarkPalmer
It's not a Xerox 700 we are replacing, it's a Ricoh C700EX- two totally different beasts. I liked the DC250, but at Penn State it's all Ricoh machines. The C751 is a substantial upgrade from the C700EX in the Ricoh lineup.
-Mark-
oppss... pardon!
No doubt the C751 is an upgrade...but your volume is REAL Production (50% heavy weight paper...).
You should consider 2 machines, no doubt, especially if your contract is over 3 years.
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