Loveshaw MicroJet I Technician Manual

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Little David

Technician's Manual

MicroJet I™

MicroJet I Plus™

MicroJet II™

MicroJet III™

MicroJet III HC™

INK JET CODER

Trouble-Shooting Guide

PART NUMBER: CPM200-TSG

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Summary of Contents for Loveshaw MicroJet I

Page 1 Little David Technician's Manual ® MicroJet I™ MicroJet I Plus™ MicroJet II™ MicroJet III™ MicroJet III HC™ INK JET CODER Trouble-Shooting Guide PART NUMBER: CPM200-TSG...
Page 2 Loveshaw Europe A Division of ITW LTD. Unit 9 Brunel Gate West Portway Industrial Estate Andover, Hampshire SP10 3SL ENGLAND Tel: 264-357511 Fax: 264-355964 Sales@loveshaw-europe.co.uk Document revised September 2004. Copyright © 2003, 2004 Loveshaw, an ITW Company All rights reserved worldwide.
Page 3: Table Of Contents
Table of Contents ntroduction ......................1 ) Ink lamp stays on ....................2 ) Ink lamp does not come on when ink container is empty........2 ) Unit does not purge .................... 3 ) Heavy printing....................3 ) Weak print/output....................4 ) Printing starts heavy and weakens when printing long messages ......
Page 4: Introduction
NOTE: Refer to attached assembly drawings when troubleshooting. Further assistance can be obtained by calling your local distributor or Loveshaw factory service technician at 1-800-962-2633. Head: MICROJET Trouble-Shooting Guide...
Page 5: A) Ink Lamp Stays On
A) Ink lamp stays on * New units shipped from the factory contain a solution that will cause the lamp to remain on. This solution must be completely purged out, and ink purged through, before the lamp will go out. * Purge unit, light should go out.
Page 6: C) Unit Does Not Purge
C) Unit does not purge * Test pump pressure. Pressure should be between 2.0 and 3.0 psi. If pressure is zero, proceed to step “M”. * Check ink level in container and replace if empty. * Check for kinks in tubing and replace, if necessary. * Test for ink flow from brass cap/ink container: Crimp tubing going into reservoir from ink container.
Page 7: E) Weak Print/Output
E) Weak print/output * Check dot size; increase as needed. * Check purge output; all nozzles to give a 2 inch stream of ink or greater. * If weak printing continues, go to letter “C” testing ink flow. Head: F) Printing starts heavy and weakens when printing long messages * Purge for air removal.
Page 8: I) Display Does Not Come Up
I) Display does not come up * Check if pump is running; if not, check that transformer is operating properly. (See Troubleshooting Chart at end of this list.) * If pump is running, check AC fuse under front cover and replace if blown. * If fuse continues to blow, replace power supply board.
Page 9: M) Pump Does Not Run
M) Pump does not run * Remove transformer power cord from unit and check for proper AC voltage at connector. (See Troubleshooting Chart at end of this list.) Replace transformer if defective. * Remove front cover and check electrical connectors on pump. If proper voltage is present at pump and pump is not running, remove wires (2) going to pump, and check resistance across pump coil (See Troubleshooting Chart at end of this list.)
Page 10: P) Ink Not Drying On Product
P) Ink not drying on product * Check dot size setting ( <SIZE> key); lower if needed. * Check pump pressure should be between 2.0 and 3.0 psi. If pump pressure is out of adjustment, see AIR PUMP PRESSURE ADJUSTMENT procedure.
Page 11: T) Unit Locks Up After Installation
T) Unit locks up after installation * Connect transformer to a Power Backup Supply UPS (available from Loveshaw). * Supply a dedicated line plus use regulated supply. * Insure A.C. outlet has a proper ground. * Make sure the conveyor line is properly grounded to a low impedance ground (less then 5 ohms).
Page 12: Low Ink Lamp/Reservoir Lead Removal
Low ink lamp/reservoir lead removal To remove either low ink lamp leads or reservoir leads from the four-pin connector, follow steps as listed: * Turn unit off. * Open lid. * Remove ink bottle; place cap on bottle and set aside * Remove two screws from pump cover, one on each edge, and set aside.
Page 13: Air Pump Pressure Adjustment
Air pump pressure adjustment * Turn unit off. * Open front cover. * Remove ink bottle; place cap on bottle and set aside. * Turn the brass knob clockwise for higher presser or counter clockwise for lower presser. * Verify pump pressure at air port of brass bottle cap using gauge assembly and turn the unit on.
Page 17: Troubleshooting Chart
TROUBLESHOOTING CHART CHECKING AIR PUMP COIL ASSEMBLY CPM75-208-B SET METER TO V~ AND SET METER TO OHMS TAKE READING ON AND TAKE READING TWO TEMINAL ON DISCONNECTED CONNECT TO POWER. TERMINALS WITH IT SHOULD BE 19.5 POWER OFF UNIT. VAC. POWER SHOULD IT SHOULD BE 32 BE ON.
Page 24 MICROJET Trouble-Shooting Guide...
Page 25 MICROJET Trouble-Shooting Guide...
Page 26 MICROJET Trouble-Shooting Guide...
Page 27 MICROJET Trouble-Shooting Guide...
Page 28: Battery Replacement
Battery Replacement Battery Replacement Turn unit off. Turn unit off. Open back lid. Remove 2 screws from inside of top half of unit. Remove Open back lid. Remove 2 screws from inside of top half of unit. Remove DRIVER board from the CPU/KEYPAD assembly. DRIVER board from the CPU/KEYPAD assembly.
Page 30 Self-contained non contact coding system High speed valves (5) standard Messages Save Area = 255 (39 fixed characters per line) MicroJet I Plus Prints one line of 7 X 5 dot matrix characters Choose from one of following nozzle plate sizes: 3/8”...
Page 31: Warranty
MAY ELECT, ANY PART OR PARTS THAT PROVE IN LOVESHAW’S JUDGEMENT TO HAVE BEEN DEFECTIVE IN MATERIAL OR WORKMANSHIP AT THE TIME THE GOODS WERE SHIPPED FROM LOVESHAW’S PLANT. ANY WARRANTY CLAIM NOT MADE IN WRITING TO LOVESHAW AT ITS HOME OFFICE WITHIN THE APPLICABLE WARRANTY PERIOD AND WITHIN 10 DAYS OF FAILURE WILL NOT BE VALID. THIS IS THE SOLE AND EXCLUSIVE REMEDY AVAILABLE UNDER THIS WARRANTY.
Page 32 2206 Easton Turnpike, PO. Box 83 South Canaan, PA 18459 Tel: 1-800-962-2633 ! 570-937-4921 Fax: 570-937-4016 www.Loveshaw.com Info@Loveshaw.com Loveshaw Europe A Division of ITW LTD. Unit 9 Brunel Gate West Portway Industrial Estate Andover, Hampshire SP10 3SL ENGLAND Tel: 264-357511 Fax: 264-355964 Sales@loveshaw-europe.co.uk...

This manual is also suitable for:

Microjet i plus Microjet iii Microjet ii Microjet iii hc

Loveshaw MicroJet I Technician Manual

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Summary of Contents for Loveshaw MicroJet I

Page 3: Table Of Contents

Page 4: Introduction

Page 5: A) Ink Lamp Stays On

Page 6: C) Unit Does Not Purge

Page 7: E) Weak Print/Output

Page 8: I) Display Does Not Come Up

Page 9: M) Pump Does Not Run

Page 10: P) Ink Not Drying On Product

Page 11: T) Unit Locks Up After Installation

Page 12: Low Ink Lamp/Reservoir Lead Removal

Page 13: Air Pump Pressure Adjustment

Page 15: D Iagrams

Page 17: Troubleshooting Chart

Page 28: Battery Replacement

Page 29: Bill Of Materials / Quick Reference Chart

Page 31: Warranty

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