Universal WPNP-400NI-12-PIDS User manual

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OWNER’S MANUAL
INSTALLATION - OPERATION - MAINTENANCE
STENCILING & MARKING SYSTEMS
WPNP-12-PD-22139
NON-POROUS
WPNP-400NI-12-PIDS, WPNP-400NI-12T-PIDS,
WPNP-400NI-12-PIDS-D & WPNP-400NI-12T-PIDS-D
WEB PRINTERS
UNIVERSAL STENCILING & MARKING SYSTEMS, INC.
P.O. BOX 871 - ST. PETERSBURG, FLORIDA33731 USA
PH:[phone] -E-Mail:[email protected]
Website: www.universal-marking.com

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PREFACE
SPECIFICATIONS
WPNP-400NI-12-PIDS& WPNP-400NI-12T-PIDS
WPNP-400NI-12-PIDS-D & WPNP-400NI-12T-PIDS-D
Printing Dies
XFNeoprene Ink Rolls
QUICK START
Installingthe Printer
Preparing the Printer for installation of the Ink Roll
Preparing the Ink Roll for installation
InstallingtheInk Roll
Reinstalling the Inking System on the Printer
Installing the Printing Dies
Inking System PositionAdjusting Knobs
Pre-Inkingthe XF NeopreneInkRoll
BASIC PRINCIPLES OF OPERATION
The PIDS System
HighSpeed PrintingApplications
PIDS-DIGITAL-CE Programmable Ink Delivery Systems
Encoder Sensor for Digital Models
MAINTENANCE
Adjustment of the Inductive Proximity Sensor
Cleaning the Printer
Cleaning the Transfer Roll
Cleaning the Printing Dies
PARTS DIAGRAMS & PARTS LISTS
UNIVERSALproducts are manufacturedto exacting standards and everyavailable step hasbeen taken toassure
your complete satisfaction. It is most important, however, that the instructions contained in this manual are read
and carefully followed for best results. Failure to do so may result in unsatisfactory performance, damage to the
equipment and personal injury.
IMPORTANT NOTE
- LIMITED WARRANTY -
UNIVERSALWPNP-400NI-12-PIDSWebPrintersare guaranteed tobefreefrom defects inmaterialsandworkmanship for
a period of 90 days from the date of purchase. Components found to be defective during this time will be repaired free of
charge if returned to the factory. Damage resulting from use of improper inks, improper installation, or operation is not
coveredunder thescope ofthis warranty. Forwarranty serviceplease contactour Customer Service Department.
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QUICK START
With a full understanding that very few people like to read manuals or have the time to do so, we have
createdaQuick Start manual which willgiveyou all theinformationyou need togetyour printer operating
in just a few minutes.
PREFACE
Abulk ink reservoirsuppliesa wide varietyof fast dryingdye and pigmented inksto the printerautomatically during
production using a PIDS-200 Digital Programmable Ink Delivery System. The different types of ink that can be
used include, Universal #100, Universal Type D and Universal Type M for marking on plastic films, metal, rubber
and glass materials.
The WPNP-400NI-12-PIDS Series printers, have a print width capacity of 4”(100 mm) and a print drum
circumference of 37.6” (957 mm) making this printer the best choice for printing large text messages and logos on
continuousweb materials whenlonger print repeatintervals are required. These non-indexing, topmount printers
have a rugged, dual frame, anodized aluminum construction with stainless steel shafts and axles and a modular
inking system which can be removed from the printer in a matter of seconds without the use of tools.
The PIDS and PIDS-D (Digital) models of the WPNP Series Printers are designed specifically for use with
Universal’s PIDS-DIGITAL-CE Programmable Ink Delivery Systems. It is important to note that when installing 2
WPNP Series printers on a single web production line, only one of the printers needs to be a Digital model, the
second printer can be a standard PIDS (non-digital) model.
The specification section includes drawings with the basic dimensions of the printers, the net weights, maximum
die capacities, maximum print width and print drum circumferences. This section also lists the specifications for
the printing dies.
To keep your coder operating properly, it is important to read and understand this manual which explains the
installation, basic operation and maintenance of the WPNP-400NI -12-PIDS Series printers.

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SPECIFICATIONS
WPNP-400NI-12-PIDS & WPNP-400NI-12T-PIDS,
WPNP-400NI-12-PIDS-D, WPNP-400NI-12T-PIDS-D
ModelShown: WPNP-400NI-12-PIDS
NET WEIGHT: 36 LBS. - 13.5 OZS. (16.71 KG.))
MAXIMUMDIE SIZE- US STANDARD: 3-7/8” (30 RIBS) X 37” LENGTH
MAXIMUMDIE SIZE- METRICPRINTERS ONLY: 98.4 MM (28 RIBS) X 939.8 MM LENGTH
PRINTDRUMCIRCUMFERENCE: APPROXIMATELY 37.7" (958 MM) MEASUREDAT DIE FACE
6.53”
166 mm 4.53”
17.47”
21.98”
8.95”
3.72”
14.73”
12.00”
115 mm
444 mm
558 mm
227 mm
95 mm
374 mm
305 mm

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Printing dies are manufactured to precision thickness
tolerances which are very critical to the performance of
these printers. When installed, the face of the printing die
should extend only .007" - .008" beyond the radius of the
Bearer rings as shown. Using dies that do not meet the
design specifications will result in poor print quality and
possible damage to the transfer roll.
Although there are several competitive rib backed die
systemsavailable, it isvery important to notethat they are
not all made to the same rib spacing or thickness
specifications and they are not interchangeable.
Universal also offers Metric RIBtype® Die Systems for use in countries where metric character sizes are the
standard. The Metric dies are thicker and the rib spacing differs slightly from the standard printing dies therefore
the two versions are not compatible. To accommodate the differences, the print drums for Metric dies are
machined to a slightly different diameter from the U.S. versions.
The printer model numbers for Metric will have a “-T” suffix and the Metric Drum Covers have a distinct pink color.
Diesare also availablein “logo” formin which acomplete text messageis produced ona single piece of ribbacked
rubber. Logo dies are much faster to change and generally produce better print quality due to their unitized
construction. Custom type styles, company logos, and trademarks can also be photographically reproduced from
black and white art work.
RIBtype® PRINTING DIES
Universal Non-Porous Web printers are designed to use RIBtype® printing dies which have a molded rib backing.
The ribs on the back of the die snap into mating ribs in the Drum Cover on the print drum. The printing dies are
produced in many standard character styles and sizes and are available in sets containing a combination of
individual alphabetic and numeric characters or in sets containing numeric characters only. These character sets
or “sorts” can be used to make up text messages and code numbers as necessary.
BEARER RING
.007” - .008”
PRINTING DIE
DRUMCOVER
FIGURE1
PRINTER MODELS DESIGNED FOR METRIC RIBtype® PRINTING DIES
SPECIFICATIONS
XF NEOPRENE INK ROLLS FOR THE WPNP-400NI-12-PIDS
The WPNP-400NI-12-PIDS system is designed to use the re-inkable, XF
Neoprene Ink Rolls made from an extra firm density neoprene material. The
extremely fine cell structure of these rolls provides exceptionally good print
quality and can be used with a variety of alcohol or glycol base inks. Unless
you ordered a pre-inked roll with your machine, these rolls are supplied in a
dry condition. Pre-inked rolls are available from the factory and are
recommended for first time users but if you have a dry roll, please follow the
pre-inking instructions on page 14.
FIGURE2

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Use two 3/8” diameter bolts to attach the printer’s mounting bracket to a rigid mounting plate. Ensure that the
printer is aligned to track parallel with the web material and that both Rubber Friction Bears on the Print Drum
contact the web with equal pressure.
When printing on thin materials, it is imperitive that the print drum is supported by an idler roll or a flat
platen under the web as indicated.
ThePIDS System whichwill supply inkto the printerduring operation shouldbe located asclose as possibleto the
printerto minimize thelength of theink tubes throughwhich the ink isfed. (See additionaldetails on theinstallation
of the PIDS System in the PIDS Manual.)
WEB TRAVEL
MIN
MAX
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INSTALLING THE PRINTER
When choosing a location for the installation of the printer, several issues should be considered:
1 - It is always best to install the printer in a location that is free from dust and other contaminates which can cause
degredation of the print quality. Fast drying Non-Porous Inks become tacky during the drying process and printing
dies will pick up dust particles and require more frequent cleaning.
2 - If possible, install the printer in a location that provides for easy access.Although the inking system on these
printers can be removed in seconds for convenient maintenance on a work bench, changing printing dies requires
easy access to the print drum.
3 - The WPNP Printers should be mounted at an angle of 15 to 30 degrees from horizontal, as indicated in the
Figurebelow.
IDLERROLL
FIGURE 3
15 - 30 DEG.
QUICK START

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FIGURE 5
TheWPNP-400NI-12-PIDSNon-PorousWeb Printers are designed fortopmountinstallationto print on continuous
non-porous web materials. To prepare the printer for use, the following steps should be followed.
PREPARING THE PRINTER FOR INSTALLATION OF THE INK ROLL
The WPNP-400NI-12-PIDS Printers have been designed with an easily removable inking system. The Ink Rolls
can be installed with the inking system on or off the printer. Prepare the printer as follows:
3 - Loosen the Inking System Locking Knob by turning the
knob counter-clockwise approximately 1 revolution.
FIGURE 4
QUICK START
FIGURE 6
1 - Remove the Thumbscrews from both sides of the Inking
System
2 - Carefully remove the Wiper Adapter from the Inking
System. Do not damage the thin Mylar Wiper.

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6 -Remove the Knurled Retaining Nut by turning it in a
counter-clockwise direction.
7 -Remove the Drive Wheel Cover by lifting it straight off
the axle and locating pin.
QUICK START
FIGURE9
FIGURE10
4 -Swing the Inking System Locking Assembly to the left
(counter-clockwise) as shown in fig 7.
5-TheInkingSystemcanberemovedfor off-line installation
of the Ink Roll by grasping the Inking System Assembly
by the lifting tab and pulling the Inking System out of the
machine.
FIGURE8
FIGURE7

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8 -Remove the Knurled Drive Wheel.
Note: The Knurled Drive Wheel is installed on the top
of the Anilox Roll and is engaged by 3 stainless steel
drivepins.
9 -Remove the Inking System Cover by carefully pulling
the Cover straight off the axle. Be very careful not to
let the cover drag across the surface of the Anilox Roll
during removal.
FIGURE11
FIGURE12
QUICK START
FIGURE13
PREPARING THE INK ROLL FOR INSTALLATION
It is imperitive that the ink roll installed on this printer is properly inked and prepared for installation.
If you ordered a pre-inked roll with your printer, the following steps will guide you through the preparation and
installation of this roll. If you have a dry roll, see page 14 for inking instructions.
1 -To prepare the pre-inked roll for installation, you will
need a clean piece of cardboard, a pair of rubber gloves,
a pair of sissors or razor knife and a round metal rod
approximately1/4”- 3/8” (6mm - 9mm) diameterbyat least
6” (150mm) long. Around shank Phillips screwdriver will
work nicely.
Note: Ink will stain clothes and other materials so careful
handlingisrequired during thisprodedure.

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1 -Rotate both the Ink Roll Eccentric Knobs on the Inking
System Covers to the “MIN” position.
In this position, the ink roll will not touch the
AniloxRoll when the cover is reinstalled.
2 -While holding the Inking System Cover in one hand, slide
the Ink Roll onto the Ink Roll Axle.
INSTALLING THE INK ROLL
FIGURE16
FIGURE17
Usethe round rod or screwdriver used duringthe
ink roll preparation procedure to position the roll
and slide the roll onto the ink roll axle.
QUICK START
3 -Holding each end of the screwdriver or round rod, roll
the Ink Roll several times across the piece of cardboard
while applying light pressure to remove the excess ink.
You want the roll to be fully saturated but not dripping
wet. If in doubt about the proper saturation level of the
rollduring thisprocess, itis betterto removea bitmore
ink than not enough. Installing a roll with too much ink
will cause dripping inside the inking system housing.
2 -Put on the rubber gloves and carefully cut the end of
the bag open and remove the Ink Roll using the rod or
screwdriver.
Pre-Inked Rolls are intentionally over-saturated to
prolong storage life. There may be a small amount of
liquid ink in the bag when it is opened so be careful
handlingthe openedbag afterthe rollis removed. Ink
may run out.
FIGURE14
FIGURE15