Universal WPNP-400NI-PIDS User manual

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OWNER’S MANUAL
NON-POROUS
WPNP-400NI-PIDS, WPNP-400NI-T-PIDS,
WPNP-400NI-PIDS-D & WPNP-400NI-T-PIDS-D
WEB PRINTERS
INSTALLATION - OPERATION - MAINTENANCE
STENCILING & MARKING SYSTEMS
WPNP-PD-22119
UNIVERSAL STENCILING & MARKING SYSTEMS, INC.
P.O. BOX 871 - ST. PETERSBURG, FLORIDA 33731 USA
PH: [phone] - E-Mail: [email protected]
Website: www.universal-marking.com

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UNIVERSALproductsaremanufacturedtoexactingstandardsandeveryavailablestephasbeentakentoassure
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-PIDSDigitalWebPrintersareguaranteedtobefreefromdefectsinmaterialsandworkmanship
foraperiodof90 days from thedateofpurchase. Componentsfoundto be defective duringthistimewillberepaired free of
charge if returned to the factory. Damage resulting from use of improper inks, improper installation, or operation is not
coveredunder the scopeofthis warranty. For warranty serviceplease contact our CustomerServiceDepartment.
PREFACE
SPECIFICATIONS
WPNP-400NI-PIDS&WPNP-400NI-T-PIDS
WPNP-400NI-PIDS-D & WPNP-400NI-T-PIDS-D
Printing Dies
XFNeopreneInkRolls
QUICK START
InstallingthePrinter
Preparing the Printer for installation of the Ink Roll
Preparing the Ink Roll for installation
InstallingtheInkRoll
Reinstalling the Inking System on the Printer
Installing the Printing Dies
Inking System PositionAdjusting Knobs
Pre-InkingtheXFNeopreneInk Roll
BASIC PRINCIPLES OF OPERATION
The Pids System
Pids-Digital-CE Programmable Ink Delivery Systems
WPNP Web Printer Interval Timer Setting
Endcoder Sensory Assembly
Installation orAdjustment of the Inductive Proximity Sensor
MAINTENANCE
Cleaning the Printer
Cleaning the Transfer Roll
Cleaning the Printing Dies
PARTS DIAGRAMS & PARTS LISTS
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5
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10
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14
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16
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18
19
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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
created a Quick Start manual which will get your printer operating in just a few minutes.
To keep your printer operating properly, it is important to read and understand this manual which
explains the basic operation of this printer.
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 and an explanation of the Non-Indexing models and the mounting configuration.
PREFACE
The Universal WPNP-400NI-PIDS & WPNP-400NI-PIDS-D Non-Porous Web Printers meet the requirements for
printingon non-porous continuous web materials. A 4” print widthcapacity and a 19.68” circumference print drum
easily accommodates large logos and text messages. These printers are designed for top mount installations
and are only available in a non-indexing (continuous print) model.
The following pages of this manual explain the installation, operation and maintenance of the WPNP-400NI-PIDS
& WPNP-400NI-PIDS-D Series of Non-Porous Web Printers.
TheWPNP-400NI-PIDS-D Digital Web Printers are offered in two different configurations for use with Universal’s
PIDS-DIGITAL-CE Programmable Ink Delivery Systems. To provide the necessary web motion and velocity
information to the PIDS-DIGITAL Control, one of the installed Web Printers must be equipped with an inductive
proximity sensor and a specially modified print drum. These specially modified printers are considered digital
models and have model numbers WPNP-400NI-PIDS-D and WPNP-400NI-T-PIDS-D.
If a second Web Printer is installed on the same web line, it does not need the inductive proximity sensor and will
operate as a slave printer to the primary digital printer installed. In this instance, the second printer must be
printing on the same web as the primary printer and must be printing the same amount of text since both printers
will receive the same amount of ink from the PIDS Control System. Specific details on the Digital Models are
provided on page 16 of this manual.
NOTE: The “D” in the stock number indicates a Digital model, the “T” indicates “Telos Drum Cover for metric
RIBtype”.

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SPECIFICATIONS
WPNP-400NI-PIDS & WPNP-400NI-T-PIDS
WPNP-400NI-PIDS-D & WPNP-400NI-T-PIDS-D SPECIFICATIONS
NET WEIGHT: 22 LBS. - 2 OZS. (10.04 KG.)
MAXIMUMDIESIZE STANDARD: 4” (30 RIBS) X 19-1/8” LENGTH
MAXIMUM DIE SIZEMETRIC: 100 MM (28 RIBS) X 430 MM LENGTH
PRINTDRUMCIRCUMFERENCE: APPROXIMATELY 19.68" (500 MM) MEASUREDAT THE DIE FACE
(166mm)
6.53”
4.53”
(115 mm)
14.27”
16.16”
(362mm)
(410mm)
(221mm)
(94mm)
(293mm)
(159mm)
8.69”
3.72”
11.54”
6.27”
MIN
MAX
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SPECIFICATIONS
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 in Figure 1. Using dies that do not
meetthedesignspecificationswillresultinpoorprintquality
and possible damage to the transfer roll.
Although there are several competitive rib backed die
systemsavailable,itisveryimportant to note that 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 on Metric printers will have a “-T” suffix and the Metric Drum Covers have a distinct
pinkcolor.
Dies are also available in “logo” form in which a complete text message is produced on a single piece of rib
backed 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 Universal RIBtype® printing dies which have a molded
ribbacking. TheribsonthebackofthediesnapintomatingribsintheDrumCoverontheprintdrum. Theprinting
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
FIGURE2
XF NEOPRENE INK ROLLS FOR THE WPNP-400NI-PIDS SERIES
TheWPNP-400NI-PIDS SERIESsystemsare designedtouse there-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.
Unlessyouordereda pre-inkedrollwithyourmachine,theserolls aresupplied
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.

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MIN
MAX
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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 imperative that the print drum is supported by an idler roll or a flat
platen under the web as indicated.
ThePIDSSystemwhichwillsupplyinktotheprinterduring operation should be located as close as possible to the
printertominimizethelengthoftheink tubes through which the ink is fed. (See additional details on the installation
of the PIDS System in the PIDS Manual.)
WEB TRAVEL
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
degradation 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-400NI-PIDS Printers should be mounted at an angle of 15 to 30 degrees from horizontal as
indicated in the Figure below.
IDLERROLL
FIGURE 3
15 - 30 DEG.
QUICK START

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FIGURE 5
The WPNP-400NI-PIDS SERIES Non-Porous Web Printers are designed for top mount installation to 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
These 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 counterclockwise 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
counterclockwise direction.
5 -Remove the Drive Wheel Cover by lifting it straight off
the axle and locating pin.
FIGURE9
4 -Swing the Inking System Locking Assembly to the left
(counterclockwise) as shown.
5 -The Inking System can be removed for off-line
installation of the Ink Roll by grasping the Inking System
Assemblyby the lifting tab andpulling theInking System
out of the machine.
FIGURE7
QUICK START
FIGURE8
FIGURE10

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6 -Remove the Knurled Drive Wheel.
Note: TheKnurled DriveWheel isinstalled onthe top
of the Anilox Roll and is engaged by 3 stainless steel
drivepins.
FIGURE11
QUICK START
7 -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.
FIGURE12
FIGURE13
PREPARING THE XF NEOPRENE INK ROLL FOR INSTALLATION
It is imperative that the ink roll installed on this printer is properly inked and prepared for installation. If
youorderedapre-inkedrollwithyourprinter,thefollowingstepswillguideyouthroughthepreparationand 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 scissors or razor knife and a round metal rod
approximately1/4” -3/8” (6mm - 9mm) diameterby atleast
6” (150mm) long. Around shank Phillips screwdriver will
work nicely.
Note: Ink will stain clothes and other materials so careful
handlingisrequired during this procedure.

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QUICK START
1 -Rotate both the Ink Roll Eccentric Knobs on the Inking
System Cover to the “MIN” position.
In this position, the ink roll will not touch theAnilox Roll
whenthe cover isreinstalled.
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
Usetheroundrodorscrewdriverusedduringtheinkroll
preparation procedure to position the roll and slide the
roll onto the ink roll axle.
3 -Insert the screwdriver through the hole in the plastic
core and roll the Ink Roll several times across the piece
of cardboard while applying light pressure to remove
the excess ink.
For most applications, you want the roll to be fully saturated
but not dripping wet. If in doubt about the proper saturation
level of the roll during this process, it is better to remove a bit
more ink than not enough. Installing a roll with too much ink
will cause dripping inside the inking system housing. For
applicationswherewebspeedisover 400 RPM,removemore
ink from the roll in this process.
2 -Put on the rubber gloves and carefully cut the end of
the bag open and remove the Ink Roll.
Pre-InkedRollsareintentionallyoversaturatedtoprolong
storagelife. There maybea small amountof liquid inkin
the bag when it is opened so be careful handling the
openedbag after theroll isremoved. Ink mayrun out.
FIGURE14
FIGURE15