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| A digital-inker upgrade at the St. Louis Post-Dispatch replaced manual settings, pictured above, with precise, touch-screen controls, below. |
Papers in St. Louis and Colorado Springs went through extensive retrofitting projects to bring their pressrooms up to snuff. At the St. Louis Post-Dispatch, explained Production Director David Givens, adding digital inkers to one of six 30-year-old Goss Metro Offsets not only improved inking control and quality, but also turned the pressnicknamed the Toadfrom a place to avoid into a haven for press operators who enjoyed running it in its refurbished condition.
In 1995, the publisher told Givens that for financial reasons, he wanted the presses installed in 1970 updated to run another 25 years. "We got the message," he said. "It was time to engage in a rebuild."
The Metro Offsets were "sturdy," so retaining them was not troubling. The 18-month project involved replacing worn gears and shafts, reworking all folders, installing new plate lockups, putting in spray-bar dampening, and adding digital pasters. Givens found, however, that results would have been even better had a press-control system been included, as ink delivery remained a problem. The Toad proved the point, because it did get a digital-ink injectorwith superior results.
"They meter the ink in precise increments," he said. "No more crank, crank, crank and hope you made the right adjustments."
The $10 million press upgrade, plus another $2 million spent on web-width reductions, was the most cost-efficient way to improve reliability and reproduction, Givens said. The alternative? Buy new pressesfor $98 million.
"Adding new technology and digital inkers is a great example of how you can achieve improved press performance," he said.
Conditions in the pressroom at The Gazette in Colorado Springs were deplorable when an upgrade project was ordered there, said Production Director Phil Mauk. His undertaking focused on a severe paster problem, causing newsprint waste to soar to 13 percent as the antiquated pasters and reelsdesigned for letterpress decades before, but operating with much younger offset pressessimply shook, rattled, and failed to work right.
MAN Roland Inc. of Westmont, Ill., conducted a press audit in 1997, finding some components so badly worn that they had more than an inch of playsomething not compatible with good color registration. Paster brushes had weak bristles, belt-drive clutches were all worn, and paster blades were dull and missing teeth.
The Gazette tapped MAN Roland to provide a complete update, taking one reel down for a four-week period in order to install digital reel-tensioner pasters and electronic press controls throughout.
Now, Mauk says, the presses hold registration during paster cycles, paster misses are down to less than two per 100, and newsprint waste has been more than halved to 6 percent. The major task ahead, he said, is sticking to a stringent program of preventive maintenance.
The shaftless-drive technology now found on virtually all new presses can be spliced onto an existing press, explained Jim Hulman, senior account executive of Rexroth Indramat of Hoffman Estates, Ill.
The only major limitation is that such hybrids are not equipped to handle registration-critical junctures. They are, however, ideal for adding units in a money-saving way, he said, and can reduce the length of color web leads.
Coupling shaftless units to an existing press relies on a mechanical encoder attached to its shaft. Computer software interprets the shafts rotation, synchronizing the shaftless units motors.
For publishers looking to replace units, the emerging four-plates-across-by-one-plate-around approach may be a good choice, said Alan Flaherty, principal with ComPlan Inc. of Cincinnati. "All you really need to know about a four-by-one press," he said, "is that it can do anything a four-by-two press can do except run collect."
A four-by-one is four pages wide, like presses long used by major metros and medium-sized papers, but its plate cylinder holds only one plate around, not two as on older presses. The downside? No more collect runs. The upside? Significant material savings, as fewer plates are needed, plus greater flexibility in configuring press runsthe A section can be larger than any other, for example, to accommodate more ads. In addition, the page count can go up in increments of two, not four.
Two press makers have growing installed bases in the four-by-one market,
with others taking serious looks at creating their own offerings, he said.
The shaftless technology is no longer cutting-edge, either, which means
"I think we can count on them behaving pretty well," Flaherty said.
"Its important that you plead your case and buy enough time to get the press up and running, said Tom Shafer, president of CMYK University in Millersburg, Pa.
Chuck R. Blevins, president of Chuck Blevins & Associates in Vienna, Va., agreed. Its a common problem. People are often too aggressive on their installation schedules.
Many papers switching to shaftless presses are not prepared for the impact electronics will have on the pressroom, said Shafer. No one is ready for the staffing levels, how sensitive the press is or the need for training, he said.
For instance, The Daily Advertiser in Lafayette, La., originally had one electrician to support its shaftless press. Now the paper has a maintenance crew of electricians and mechanics. While many papers cut labor on the press-operation side when they buy a shaftless press, they often add it back on the maintenance side, Shafer said.
In Ohio, the Dayton Daily News sought help from an outside company that developed a diagnostic tool offering real-time analysis of its 105 independent shaftless-press drives to help perform preventive maintenance.
Although training is essential, its often the first item cut from the budget when papers switch to a shaftless press. So when The Dallas Morning News purchased its 62-unit press from WIFAG of Bern, Switzerland, it asked the vendor to include training in the contract so it couldnt be cut, said Paul Webb, the papers vice president of production. The paper sent 16 employeesa mix of press operators, machinists and electriciansto a four- to six-week program in Switzerland, he said.
The mechanics arent much of an issue, but the electronics and controls are a departure from what were used to, he said. WIFAG still maintains personnel onsite. The tendency is to let them deal with the problem to get the press up and running, Webb said, but then the local people dont learn as quickly.
Purchasing presses from overseas has become increasingly common for U.S.
newspapers, but with it comes challenges. One of the concerns for Dallas
was having sufficient spare parts for its Swiss press. As part of its
contract, WIFAG agreed to create a consignment parts inventory valued
at $1 million in the United States. Fortunately, they established
it in our plant, said Webb.
The Washington Post selected keyless inking because it promised high-quality reproduction with few variations, quick startup with little waste, and no adjustments once a run was under way. Just press a button and it goes, anticipated Quality Assurance Manager Kevin S. Conner, who worked with Mitsubishi to bring eight presses into two plants.
It didnt work out that way, Conner said. He discovered that inking would be uniform only if ink-supply blades are clean, mechanical settings are correct, and water content is in balance. Press the button and go? Hardly, Conner said. This is a dynamic process.
The Post found the ink-water balance critical. In a keyless system, ink is constantly returned to the reservoirs feeding each cylinder. If theres too much water, the ink becomes over-emulsified and will not lie down properly. The solution: more training than anticipated. Operators had to learn to think about inking in terms of entire cylinders, not individual columns on a page, or even just one page.
The Post also invested heavily in testing to establish baselines for each press at various operating speeds. We fine-tuned what we were seeing, Conner said.
The Dayton Daily News just completed its first year of production from its Print Technology Center in Franklin, Ohio, where it installed KBA presses with an anilox keyless system that was expected to allow extensive automation.
Training would be really, really simple, anticipated Joe McKinnon, director of operations for the 153,977-circulation daily. It wasnt. Nor was actually operating the presses, where the keyless promiseset up once, run without adjustmentsremains elusive. We spent a lot of time on training, McKinnon said, and its still a challenge even after a year.
Again, the challenge has been indoctrinating operators in the peculiarities of maintaining the ink-water balance. Now a consultant works the night shift, continuously instructing the four-person crew. And the paper continues refining densities for its color inks.
While the Post and the News struggled with keyless, Casa Editorial El Tiempo, a 350,000-circulation daily in Bogot‡, Colombia, is delighted with its presses from Goss Graphic Systems Inc. of Westmont, Ill.
Benefits of the Goss ColorFlow keyless system included faster starts, with the number of start-of-run copies reduced from as many as 2,200 to as few as 100 during warm startups, said Rafael Isidro Rodriguez Umana, vice president of administration and technology. Ink consumption has fallen slightly, fewer operators are needed each shift, and print quality has improved.
However, Umana said, staffing requirements are more stringent because
greater technical skill is needed. Maintenance has also been reconfigured.
It has to be preventive, not the reactive maintenance we used to
do, he said.
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