Universal Laser Systems CLP-100NI-NPRT manual Mounting the Coder

Page 20

WEB PRINTING

In high speed web applications, the distance the web travels at a given speed in 2-3 seconds can be substantial. It is important to note that when the printed web is tightly rewound, the additional pressure applied to the printed marks can increase the possibility of a ghost image transfer of the ink to the back of the web.

If this situation occurs and the web speed cannot be slowed down to allow more drying time, air blowers can be used to direct heated air on the printed marks to accelerate drying. Preheating the web material slightly with hot air before printing can also be an effective method to decrease the drying time. If either of these techniques are used, it is recommended that the hot air blowers be electrically tied into the web feed motor energizing circuit. This will ensure that the blowers are turned off automatically if the web is stopped.

MOUNTING THE CODER

1 - After determining the best location to mount the coder, install the sup- plied mounting bracket (Figure 34) on a rigid surface using two 3/8" diameter bolts, nuts, washers and lock wash- ers (not supplied). Be sure that the mounting column of the coder is par- allel to the idler roll.

2 - Insert the mounting column into the mounting bracket and allow the print drum to pivot into contact with the idler roll. Do not tighten the bracket clamping screw at this time.

 

MOUNTING

 

COLUMN

 

MOUNTING BRACKET

 

CLAMPING SCREW

 

MOUNTING

 

BRACKET

PRINT DRUM

3/8” BOLTS

 

 

AL

IDLER ROLL

 

FIGURE 34

PRESS DOWNWARD

SPRING TENSION ARM

TENSION SPRING

IDLER ROLL

FIGURE 35

3 -Press down lightly on the spring tension arm to compress the tension spring slightly. (Fig- ure 35) While holding a light pressure on the arm, tighten the mounting bracket clamping screw.

Note: This procedure is used to adjust the contact pressure which the print drum exerts against the web. Only enough pressure should be applied to ensure positive friction drive of the print drum. Ex- cessive contact pressure will impose unnecessary drag on the web and may result in poor print quality.

20

Image 20
Contents Installation Operation Maintenance Stenciling & MarkingPreface Specifications Important NoteQuick Start Coder SpecificationsPreface Specifications Conveyor Line Printer Specifications TOP Mount SeriesConveyor Line Printer Specifications Side Mount Series Model Shown CLP-200NI-NPLSMounting Configuration Indexing and NON-INDEXING ModelsRIBtype Printing Dies Type MT INK Rolls INK RollsXF Neoprene INK Rolls Installing the Inking System Assembly Quick StartInstalling the PRE-INKED Roll Knurled Drive Wheel Cover is very loose fitting Quick Start Hold the Drive Wheel Cover and Inking System Cover in place Installing the Printing Dies Adjusting the INK Roll Eccentric NON-POROUS Inking System Using the 4 OZ. Reservoir INK CartridgesBasic Principles of Operation Selecting AN Appropriate INK INK Drying Time Considerations WEB Printing Mounting the Coder Special WEB Printing Applications Gang Mounting Carton Printing Carton AlignmentClearance 1/4 DIE Positioning for Indexing Applications Carton Printing Maintenance PRE-INKING a NEW INK RollCleaning the Transfer Roll Cleaning the CoderCleaning the Printing Dies Pivot ARM & Inking System Assembly Conversion Tension ARM Assembly Conversion Print Drum Index Mechanism Conversion Print Drum Axle Brass TIP Recess Area SET Screw Replacing Print Drum Index Springs Removing and Replacing Index Block B Lift Index Block B straight up to remove Inking System Assembly Maintenance MOUNTINGARM, CLP CE Guard NON-POROUS Conveyor Line Printer Assembly NON-POROUS Conveyor Line Printer Parts List NON-POROUS Conveyor Line Printer Inking System Assembly NON-POROUS Conveyor Line Printer Inking System Parts List CLP NON-POROUS Inking System BaseplateFriction Bearer Ring Square CUT Snap Ring