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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

Содержание MicroJet I

Страница 1: ...Little David Technician s Manual MicroJet I MicroJet I Plus MicroJet II MicroJet III MicroJet III HC INK JET CODER by Trouble Shooting Guide PART NUMBER CPM200 TSG ...

Страница 2: ...16 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 Document revised September 2004 Copyright 2003 2004 Loveshaw an ITW Company All rights reserved worldwide ...

Страница 3: ...not come up 5 I CPU losing date time when unit is off 5 J Valve does not print but purges 5 K Valves print but will not purge 5 L Pump does not run 6 M Ink leaks from ink bottle cap 6 N Product delay character width changing on product 6 O Ink not drying on product 7 P Nozzle plate weeps ink 7 Q Nozzle blocked 7 R Tubing loose on valve ports 8 S Unit locks up after installation 8 T Tailing output ...

Страница 4: ...ribed in a simple list form keyed to hardware fault so that technicians can quickly diagnose and fix such problems Personnal Protection Equipment such as safety glasses and other protective gear should be worn when servicing ink jet printers NOTE Refer to attached assembly drawings when troubleshooting Further assistance can be obtained by calling your local distributor or Loveshaw factory service...

Страница 5: ...not come on when ink container is empty If lamp remains on remove tie wrap which hold wires to Power Supply Board and lower the wire harness Test resistance across pins 1 and 2 on side A of four pin connector Resistance across reservoir pins should measure approx 1 5 meg ohm See Troubleshooting Chart at end of this list Circuit should be open Check resistance of lamp between pins 3 and 4 on four p...

Страница 6: ... container and avoid getting ink on circuit cards If a weak ink flow or no flow is present replace reservoir See LOW INK LAMP RESERVOIR LEAD REMOVAL procedure Test for ink flow from filter Crimp tubing going into reservoir from ink container Remove tubing from inlet side or off center port of valve Carefully loosen crimp and test for flow discharge into container and avoid getting ink on circuit c...

Страница 7: ... lights LED s slowly pull paper back from unit and note distance at which LED goes out should be 2 inches or more If not replace photocell See Quick Reference Chart for part numbers Head H Photocell LED s does not turn off Check that there is no reflective material in front of unit If so the material should be painted a flat black color infrared does not reflect well off of a flat black surface Tu...

Страница 8: ...ng date time when unit is off Reset and monitor for 24 hours with unit off If retest fails CPU battery must be replaced See battery replacement procedure If CPU looses date time with unit on replace CPU Head K Valve does not print but purges Plug a working valve in that position and test If printing occurs replace valve If no printing occurs check ribbon cables replace Valve CPU or Driver Board L ...

Страница 9: ...nnector and replace if missing or damaged Tighten container cap Reposition container and check for leaks If leak continues replace bottle with a new one and retest If leak continues replace ink bottle cap assembly O Product delay character width changing on product Check the orientation of box to MICROJET it must be perpendicular Clean photocell filters with water and check that both photocell LED...

Страница 10: ... and a piece of 040 tubing Replace valve and retest Connect tubing to outlet of valve from the nozzle plate and purge Repeat backflush and purge if necessary If weeping persists replace valve R Nozzle blocked Remove tubing from center port of valve that supplies fluid to blocked nozzle Connect drain hose from maintenance kit to tubing attached to back of nozzle plate Place other end of drain tubin...

Страница 11: ...ure the conveyor line is properly grounded to a low impedance ground less then 5 ohms If you are unable to unlock the MICROJET by turning it on and off do the 666 SLAM function see operators manual for additional information on 666 SLAM procedure U Tailing output Check distance between head and substrate should be 1 2 inch max Check dot size setting readjust global and individual Make sure unit is...

Страница 12: ...in place They must be cut to loosen this harness so that measurement and rework can be done Disconnect four pin connector from modular board to lamp reservoir leads by pulling male and female of connector apart If a pin extraction tool is not available use a fine point object with safety gloves to push two locks of male pins inward towards pin body As locks of pin are being folded in firmly tug wi...

Страница 13: ... 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 Repeat procedure to obtain desired pump pressure ...

Страница 17: ... INK LIGHT CONNECTOR CHECK SET METER TO DC VOLTAGE NOTE TWO TOP WIRE ARE FROM RESERVOIR AND BOTTOM TWO ARE FROM THE LAMP POWER MUST BE ON POWER SUPPLY TRANSFORMER CHECK CPM11 003 120 CPM75 003 115 CPM11 003 240 CPM75 003 240 SET METER TO AC VOTAGE MEASURE THE TRANSFORMER PLUGED INTO AN AC OUTLET PIN 1 POSITIVE PIN 2 NEGATIVE RETURN PIN 3 GROUND PIN 4 NO CONNECTION LOW INK LIGHT CONNECTOR DIODE RES...

Страница 24: ...MICROJET Trouble Shooting Guide 21 ...

Страница 25: ...MICROJET Trouble Shooting Guide 22 ...

Страница 26: ...MICROJET Trouble Shooting Guide 23 ...

Страница 27: ...MICROJET Trouble Shooting Guide 24 ...

Страница 28: ...ry is soldered into CPU board A Remove old battery A Remove old battery B Note polarity of new battery and solder in place B Note polarity of new battery and solder in place If battery is in battery holder If battery is in battery holder A Remove old battery A Remove old battery B Note polarity of new battery and slide into holder B Note polarity of new battery and slide into holder 4 Reassemble C...

Страница 30: ...eed valves 11 standard Messages Save Areas 149 39 fixed characters per line MicroJet III Prints multiple lines and character heights One two or three lines of 5 X 5 dot matrix at 11 32 8 7mm character height or One line of 7 X 5 dot matrix at 1 2 12 7mm character or One line of 11 X 7 dot matrix at 13 16 20 6mm character height or any combination in a message Self contained non contact coding syst...

Страница 31: ... LOVESHAW DEALER AUTHORIZED TO HANDLE THE GOODS COVERED BY THIS WARRANTY ANY OUTSIDE WORK OR ALTERATIONS DONE WITHOUT LOVESHAW S PRIOR WRITTEN APPROVAL WILL RENDER THIS WARRANTY VOID LOVESHAW an ITW COMPANY WILL NOT ASSUME ANY EXPENSE OR LIABILITY FOR ANY REPAIRS MADE TO ITS GOODS OUTSIDE ITS WORKS WITHOUT ITS PRIOR WRITTEN CONSENT THIS WARRANTY SHALL NOT APPLY TO ANY ITEM THAT HAS NOT BEEN USED O...

Страница 32: ... 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 CPM200 TSG 6 05 MICROJET Trouble Shooting Guide 29 ...

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