Markem Imaje 9020 User manual

Book for service engineers
internal use only

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Contents

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Notes:

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SAFETY 11
■REMINDER 14
■SUPPLEMENT FOR MARKEM-IMAJE TECHNICIANS 14
RESPONSIBILITY 14
HEALTH AND HYGIENE 14
FIRE PREVENTION 15
ENVIRONMENT 16
SYSTEM 16
HANDLING 16
SERVICING -TROUBLESHOOTING 16
CONSUMABLES 17
SAFETY EQUIPMENT FOR MARKEM-IMAJE TECHNICIANS 18
RULES OF CONDUCT FOR MARKEM-IMAJE TECHNICIANS WHEN VISITING CUSTOMERS 19
REMINDER OF THE MAIN SAFETY PICTOGRAMS 21
PRINTER DESCRIPTION 23
■INTRODUCTION 25
■CABINET 26
■OPERATOR INTERFACE 29
■PRINT-HEAD &UMBILICAL 31
■ELECTRONIC COMPARTMENT 34
■HYDRAULIC COMPARTMENT 36
■INDUSTRIAL INTERFACE CONNECTION BOARD 37
■GENERAL SPECIFICATION 41
■ENERGY 43

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INSTALLATION 45
■OOBCL 47
■INSTALLATION OF TWO CELLS 48
■STARTING THE PRINTER FOR THE FIRST TIME 50
■OPERATOR INFORMATION 51
DAILY START-UP 51
SHUTTING OFF THE PRINTER FOR A PERIOD OF LESS THAN THREE WEEKS 52
SHUTTING OFF THE PRINTER FOR MORE THAN THREE WEEKS 52
HEAD OPERATIONS 53
AFTER SALES SERVICE POLICY 59
■ACCESS MAINTENANCE AGREEMENT 61
■STANDARD MAINTENANCE AGREEMENT 67
MAINTENANCE 75
■PREVENTIVE AND PROACTIVE MAINTENANCE TABLE 77
■THREE REASONS WHY 9020/30 PRINTERS REQUIRE MAINTENANCE 78
INK CIRCUIT 78
INK 78
INK/MACHINE PAIR 78
■TO SUM UP 79

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TROUBLESHOOTING 81
■ABBREVIATIONS TABLE USED IN THIS CHAPTER 83
■TROUBLESHOOTING. 84
■MAINTENANCE PROCEDURES 99
SOLENOID VALVE TEST. 99
RELEASING SOLENOID VALVE 0 100
PARTIAL DRAIN 101
FULL DRAIN 101
RINSING THE INK CIRCUIT IC60 101
AUTO-CALIBRATION. 102
■LIST OF SPECIAL SPARE PARTS FOR MARKEM-IMAJE TECHNICIANS 104
■LIST OF THE SPARE PARTS FOR CUSTOMERS WITH SPARE PARTS SHEETS AVAILABLE
IN THIS CHAPTER. 105
■SPARE PARTS SHEETS 106
REPLACING A MODULATION ASSEMBLY 107
REPLACING A RESONATOR 108
REPLACING THE 4SOLENOID VALVE BLOCK 109
REPLACING THE RECOVERY UNIT 110
REPLACING A GUTTER 111
REPLACING THE RECOVERY SOLENOID VALVE 112
REPLACING THE PRINT MODULE 114
REPLACING THE INK CIRCUIT IC60 116
REPLACING THE EHT BLOCK 119
REPLACING THE INDUSTRIAL INTERFACE CARD 120
REPLACING THE CPU BOARD 121
REPLACING THE DISPLAY 123
REPLACING THE PSU BOARD 124
REPLACING THE ADP BOARD 125
REPLACING THE PIEZO BOARD 126
AIR INTAKE FILTER CARTRIDGE AND SEAL (ON AIR PRESSURISATION KIT). 129
REPLACING THE KEYBOARD 130
■ADJUSTMENT SHEETS 131
BREAK-OFF POINT ADJUSTMENT 131
RECOVERY GUTTER ADJUSTMENT 133

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HYDRAULICS 135
■SOLENOID VALVE HYDRAULIC CIRCUIT (PRINTER STOPPED) 137
■NON RETURN VALVE HYDRAULIC CIRCUIT (PRINTER STOPPED) 138
■DIAGRAM OF THE HYDRAULIC CIRCUIT (NORMAL OPERATION) 139
■DIAGRAM OF THE HYDRAULIC CIRCUIT (JET STOPPED WITH MAKE UP) 140
■INK CIRCUIT:PRINCIPLE OF OPERATION 141
■PRINT HEAD 142
■DIAGRAM OF RECOVERY GUTTER SOLENOID VALVE E. 143
■RECOVERY GUTTER 143
■PRINCIPLE OF TRANSFERS 145
■INK FILTERS 147
■MAKE UP FILTER 147
■CALIBRATED RESTRICTORS 147
■CONSTANT INK CONCENTRATION PRINCIPLE 148
■JET SPEED CALCULATION AND ADJUSTMENT 149
JET SPEED CALCULATION 149
AUTOMATIC JET SPEED ADJUSTMENT 149
■NEGATIVE PRESSURE MEASURING AND ADJUSTMENT 150
MEASURING OF THE NEGATIVE PRESSURE 150
ADJUSTMENT OF THE NEGATIVE PRESSURE 150
■GUTTER SOLENOID VALVE RINSING 151
ELECTRONICS 155
■9020/9030 ELECTRONIC ARCHITECTURE 157
■CPU CONNECTIONS 158
■CONNECTORS ON CPU BOARD 159
■CONNECTORS ON INDUSTRIAL INTERFACE BOARD 160
■EXTERNAL CONNECTORS 161

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GENERAL INFORMATION 163
■INK JET PRINTING 165
■MATRIX PRINTING 165
■DEVIATED CONTINUOUS INK JET 166
RESONATOR BLOCK 167
PIEZO-ELECTRIC RESONATOR 167
RECOVERY GUTTER 167
CHARGE ELECTRODE 167
■ALGORITHMS 168
USING ALGORITHM ON 9020 AND 9030 PRINTERS 168
CALCULATION OF THE MAXIMUM SPEED OF AN ALGO: 169
USING RESTRICTION: 169
ALGORITHM TABLE 170
ALGOS CURVPRINT 171
CURVPRINT.SPEEDS TABLE 171
■PRINTING,PRESSURE,SPEED 172
CONTROLLING THE QUALITY OF INK 172
INK UNDER PRESSURE 172
■ATMOSPHERIC PRESSURE,ABSOLUTE PRESSURE,RELATIVE PRESSURE 173
ATMOSPHERIC PRESSURE 173
ABSOLUTE PRESSURE 173
RELATIVE PRESSURE 173
PRESSURE IN A LIQUID 174
RELATIONSHIP BETWEEN EJECTION SPEED AND PRESSURE 175
PHYSICAL LAW: 175
CALCULATING THE EJECTION SPEED 176
BERNOULLI'S THEOREM 176
■FUNDAMENTAL UNITS 177
MASS 177
LENGTH 177
VOLUME 177
MASS,WEIGHT AND FORCE 177
PRESSURE 177
■EXERCISE: 178

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