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Heidelberg technicians do not have the passwords for the BIOS nor do they have access to them. Very rarely do the electricians have to work within the PC itself, hence there is no reason to change the BIOS settings. Disconnecting the battery will reset the bios to default settings. The...

The machine is not a "Piece of junk", it is old technology. The production run for the Classic began in 1994 and production ended with the Pro in 2002. That means the newest machine out there is 14 years old. When the QMDI first came out there was nothing like it on the market. As the cost of...

You cannot use a conventional developer. The plates have a silicon surface. They are not thermal.

I agree with Blueslal, if you do not pre wet the cloths in the morning your first plates will typically scratch. The money you think you are saving by not buying wash up clothes is probably being wasted in the time you are paying your press operator to wash them by hand. If you are not worried...

The original solution used to clean the plates was 3 oz of a soap solution (Joy Dish soap works) per 1 gallon of water. Make sure to use a cotton cloth so as not to scratch the plate. In my experience hand washing the plates never worked as well as using the plate cleaners and letting the press...

You want to pack you blanket until it is the same as the undercut. In this instance .126.

If it ain't broke don't fix it... Not sure why it is working opposite of what it should be but if your running...

Thanks for letting us know you found the problem.

Our Omnifire prints on golf balls... https://www.heidelberg.com/global/en/company/press_1/press_release/press_release_details/press_release_55040.jsp

It sounds as if the sensor itself may be failing. There is a way you can check it. The signal wire from 12B6 goes to the SVK board, plug X4 Pin 5. If you use a volt meter the is pin will read "0" volts with no paper in front of the sensor and 24 volts with the sensor blocked. If there is no...

The simplest way to address this... You must have a squeeze between the plate and blanket of .04" to .06". There are two different undercuts of the blanket cylinders depending on the market the machine was built to be sold in. For machines built to be sold in the US market the undercut was .091"...

Bill is correct on those items, in my experience dust and paper scraps have been the culprit. Also make sure you run Short grain cover stock if you are running with cover stock, long grain does not curve around the delivery cage and sets the sensor off. If you have to run long grain cover stock...

My sanity is restored... barely.

I'm confused, you have a knife on a QMDI Pro? The only chains I know of in the press are the delivery chains and there are chains that drive the feeder.

At the risk of sounding like I do not know what I am talking about (But do)... What is the knife motor?

Your question is broad and far reaching although I can give you a topical overview of maintenance. 1. In regards to the lifespan of each type of machine. It could be 1 year or 20 years, it depends on how you maintain the machine you have. In general an offset press is going to outlive a...

If I were to guess the sheet detector is bad or misaligned. But typically it throws error codes.

Are you getting any error codes when any of this happens?

These are the densities we used with Superior Inks on the QMDI, they may vary somewhat from different ink manufacturers but get you in the ball park.