Loveshaw MicroJet II Technician Manual

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Technician manual (32 pages)

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T echnician's Manual

MicroJet

™

Trouble-Shooting

Guide

PART NUMBER: CPM755116-TSG

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Page 1 T echnician's Manual MicroJet ™ Trouble-Shooting Guide PART NUMBER: CPM755116-TSG...
Page 3 Fax: 264-355964 www.LOVESHAW.com Sales@loveshaw-europe.co.uk Document revised May 10, 2001. This document covers hardware maintenance procedures for the new MicroJet Printers. Loveshaw an ITW Company Route 296, Box 83 South Canaan, PA 18459. Divisions: Padlocker Case Sealers Padlocker Packaging Systems LittleDavidCaseSealers LittleDavid Jet Printers.
Page 4: Table Of Contents
Introduction ........... . . 1 A) Ink lamp stays on .
Page 6: Introduction
Introduc tion T his document covers hardware procedures for the L oveshaw MicroJet Printers which include MicroJet II, MicroJet 5x5, MicroJet Multi II, and MicroJet Multi III. Procedures are described in a simple list form keyed to hardware fault, so that technicians can quickly diagnose and fix such problems.
Page 7: B) Ink Lamp Does Not Come On When Ink Container Is Empty
R emove tubing from inlet of reservoir and test for ink flow by loosening crimp (discharge into container and avoid getting ink on circuit cards). If no flow is present, replace ink container and/or brass cap. MicroJ et T rouble-S hooting G uide Copyright © Loveshaw 2004, All Rights Reserved...
Page 8: D) Heavy Printing
* Check dot size; increase as needed. " * Check purge output; all nozzles to give a 2 stream or greater. * If weak printing continues, go to letter “C” testing. MicroJ et T rouble-S hooting G uide Copyright © Loveshaw 2004, All Rights Reserved...
Page 9: F)Printing Starts Heavy And Weakens When Printing Long Messages
* If ink or water is on board-remove and flush/dry overnight. R e-test next day. light is on, and will not go out, replace board (Item L E D #7) Page 28. Copyright © Loveshaw 2004, All Rights Reserved MicroJ et T rouble-S hooting G uide...
Page 10: I) Display Does Not Come Up
K ) V alve does not print but purges * Plug a working valve in that position and test. If printing occurs, replace valve. If no printing occurs, replace (Item #7). Page 28. Copyright © Loveshaw 2004, All Rights Reserved MicroJ et T rouble-S hooting G uide...
Page 11: L) Valves Print But Will Not Purge
* Reposition container and check for leaks. * If leak continues, replace bottle with a new one and retest. * If leak continues, replaceink bottlecap assembly. Part # CPMA75-104 (=Items # 5,6,7,27,28 Page # 29). Copyright ©Loveshaw 2004,All Rights Reserved MicroJet Trouble-Shooting Guide...
Page 12: O) Product Delay/Character Width Changing On Product
* R emove valve at location generating weeping. * Connect valve to a 9 volt battery and flush water into outlet post with a syringe and a piece of .040 tubing. Copyright © Loveshaw 2004, All Rights Reserved MicroJ et T rouble-S hooting G uide...
Page 13: R) Nozzle Blocked
* Note: B oth valve port and tubing end must be dry to ensure a tight fit. Dry tubing end by rolling the corner end of a paper towel into a fine point and insert into tubing end. Copyright © Loveshaw 2004, All Rights Reserved MicroJ et T rouble-S hooting G uide...
Page 14: T) Unit Locks Up After Installation
* Check tubing lengths going from valve to nozzle plate (see nozzle plate drawing). * B ackflush all nozzles * Change nozzle plate (Item #10, page 29). * Increase character width and check line speed. Copyright © Loveshaw 2004, All Rights Reserved MicroJ et T rouble-S hooting G uide...
Page 15: Low Ink Lamp/Reservoir Lead Removal
* R emove ink bottle; place cap on bottle and set aside. * R emove two screws from pump cover, one each edge, and set aside. Copyright © Loveshaw 2004, All Rights Reserved MicroJ et T rouble-S hooting G uide...
Page 16 * V erify pump pressure at air port of the brass bottle cap using gauge assembly and turn the unit on. * R epeat procedure to obtain desired pump pressure. Copyright © Loveshaw 2004, All Rights Reserved MicroJet T rouble-Shooting Guide...
Page 17: Battery Replacement
(Duracel l DL 2430) ou d’un type équivalent recommandè par le constructeur. Mettre au rebut les batteries usagées conformèment aux i nstructions du fabri cant. Copyright © Loveshaw 2004, All Rights Reserved. MicroJ et T rouble-S hooting G uide...
Page 18: Diagrams
25 OHM Figure 7 Figure 6 SE T ME T E R T O OHMS F igures 3A, 3B , 4, 5a, 5b, 6, 7. Assorted measurements. MicroJ et T rouble-S hooting G uide Copyright © Loveshaw 2004, All Rights Reserved.
Page 33: Partslistwith Explodedview
B ellows for pump wi th nu t CPM75-005/1-0 NOT E- *-Microj et(5x5) , **-Multi II( 5x11), ***-Multi I II(5x16), ****-Microjet II(5x7) C opyright © Loves haw 2004, All R ights R es erved. MicroJ et T rouble-S hooting G uide...
Page 34 NOT E- *-usi n g R ound Cable, **-using R ibbonCable, ***-M icrojet( 5x5), ****-Multi I I( 5x11) , *****Multi I II( 5x16), ******Microjet II(5x7) MicroJ et T rouble-S hooting G uide C opyright © Loves haw 2004, All R ights R es erved.
Page 35 E xploded V iew of the Microjet C PU Assembly- C PMA55-108 F igure 23. ---Parts L ist--- I tem No. P art Description P ar t No. Q ty. OV ER LAY CPM55-11-B LCD A SSEMBLY CPM A75-032 K EY BOA R D W /PAD CPM75-020-C CPMA 55-106 CPU PC BOAR D...
Page 36 E xploded View of the Microjet I I C PU Assembly- C PMA75-102 F igure 24. ---Parts L ist--- I tem No. P art Description P ar t No. Q ty. OV ER LAY CPM75-033/2-B LCD ASS EMB LY CPM A75-032 K EY BOA R D W/PAD CPM75-020-C CPU PC BOAR D...
Page 37 E xploded View of the Microjet( ), Microjet I I ( CP MA11-001/5 C P MA11-001/7 M ulti I I ( ) CP U Assembly, CP MA11-001 us ing ribbon cabl e to Va lve B oar d F igure 25. ---Parts L ist--- DE SC R IP T I O N P AR T N O.
Page 38 E xploded V iew of the M ulti I I I C PU Assembly- C PMA11-001/16 F igure 26. ---Parts L ist--- I tem No. P art Description P ar t No. Q ty. OV ER LAY CPM11-004-B LCD ASS EMB LY CPM A75-032 K EY BOA R D W/PAD CPM75-020-C...
Page 39: Bill Of Materials
MIC R OJ E T 5X5 Q ty Per T r ansfor mer V oltage I tem No. T R A NSFOR ME R - 115V ST A NDA R D CPM75-003-115 T R A NSFOR ME R - 240V ST A NDA R D CPM75-003-240 E A .
Page 40 "L" B R AC K ET AS SY CP10-043-0 SPA DE T ER MINAL CR IMP ST R A IN R E L IE F (for coiled cpu cable) CPM75-035-0 Copyright© Loveshaw 2004, All R ights R eserved. MicroJ et T rouble-S hooting G uide...
Page 41 MIC R OJ E T MULT I II I tem No. Nozzle Plate Size Qty Per CPMA 11-014 1" NOZZL E PL A T E 2" NOZZL E PL A T E CPMA 11-014/2 Qty Per I tem No. T r ansfor mer V oltage CPM11-003-120 T R A NSFOR ME R -120V 2A MP...
Page 42 MIC R OJ E T MULT I III Qty Per Nozzle Plate Size I tem No. CPMA 16-105 1 1/4" NOZZL E PL A T E CPMA 16-106 2 7/32" NOZZL E PL A T E I tem No. T r ansfor mer Qty Per V oltage CPM11-003-120...
Page 43: Changing Eprom Software On Cpu
M icrojet I nk J et P r inter Softwar e C hange P rocedure (U nits with coiled or r ound cable f rom C P U) " PL E AS E R E AD T HR OU G H F I R S T B E F OR E AT T E M P T I N G SOF T WAR E CH AN GE " T o change software, you must do the following steps: A .
Page 44 M icroj et I nk J et P r inter Softwar e C hange P rocedure (U nits with r ibbon cable fr om C PU ) " PL E AS E R E AD T HR OU G H F I R S T B E F OR E AT T E M P T I N G SOF T WAR E CH AN GE "...
Page 45: Warranty
Head: Warranty L IT T L E DA V ID Mic roJ et T his warranty is made exclusive of all other warranties and guarantees, written or oral, expressed or implied. T he only obligation of the manufacturer and seller of L ittle David MicroJet shall be to replace or repair exclusive of shipping charges any mechanical part proved to be defective, provided the defect occurs within 90 days after date of...
Page 46 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 www.LOVESHAW.com...

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