Deskjet 2050 All-in-One J510 series Deskjet 1050 All-in-One J410
HP Printhead Design - 1105 Media: Home -- 1105...
Transcript of HP Printhead Design - 1105 Media: Home -- 1105...
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HP HP PrintheadPrinthead Design Design
Benjamin A LylesBenjamin A Lyles
Clover Technologies GroupClover Technologies Group
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OEM TechnologyOEM Technology
HP HP –– Thermal Thermal
Lexmark Lexmark –– Thermal Thermal
Canon Canon –– Thermal Thermal
Epson - Piezoelectric Epson - Piezoelectric
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PrintheadPrinthead Evolution Evolution
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ThermalThermal
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Drop FormationDrop Formation
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TIJ ElementsTIJ Elements
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2 Primary Configurations2 Primary Configurations
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HP45/15 DesignHP45/15 Design
INK
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Lexmark DesignLexmark Design
- Center
Manifold
- Tubes feel
resistors
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Cleaning MethodsCleaning Methods
Steam Steam
Water Water
Centrifuge Centrifuge
Cleaning Solution Cleaning Solution
UltrasonicsUltrasonics
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Control SpecificationsControl Specifications Temperature Temperature
High temps can delaminate nozzle plate High temps can delaminate nozzle plate
Adhesives can be degraded Adhesives can be degraded
pH pH
Oxidize Oxidize printheadprinthead
Pressure Pressure
Can physically delaminate nozzle plate Can physically delaminate nozzle plate
Minerals Minerals
Can oxidize Can oxidize printheadprinthead or destabilize ink or destabilize ink
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Cause AnalysisCause Analysis
White Lines White Lines
Clogged Nozzles Clogged Nozzles Cleaning Process Cleaning Process
Water Purity Water Purity
Effectiveness Effectiveness
Ink Purity Ink Purity
Adhesive from Tape or Pad Adhesive from Tape or Pad
Ink flow characteristics Ink flow characteristics
Loose Nozzle Plate Loose Nozzle Plate
Resistor Failure Resistor Failure
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Stability TestsStability Tests
Latency Latency 2 weeks in printer 2 weeks in printer
1 week out of printer 1 week out of printer
Freeze/ThawFreeze/Thaw - 20 degrees C for 48 hours - 20 degrees C for 48 hours
Thaw 24 hours at STP Thaw 24 hours at STP
Long-Term Stability (Shelf Life)Long-Term Stability (Shelf Life) 40 degrees C for 4 weeks 40 degrees C for 4 weeks
STP (Room Conditions) for 3 months testing each month STP (Room Conditions) for 3 months testing each month
Test samples retains after 1 year Test samples retains after 1 year