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RECON.INC – ETN PRINTERS
Refurbished equipment is subject to strict testing procedures to
ensure system performance and repeatability. All worn parts are replaced, and the machine is
cleaned and painted. All parts are tested and verified for functionality. Voltages are then
checked at the drivers and throughout the system. The machine is then completely calibrated.
Special attention is given to the print head and the vision system calibrations. The system is then
put through extensive burn-in and diagnostic tests.
Demo mode –
The machine is put though a print cycle simulation for (4) hours. The test moves all axis at an
accelerated speed. This checks the integrity of the motors, drivers, and software limits. Voltages
are then re-checked for signs of motor or driver deterioration.
A diagnostic test is a special program separate from the machine software. This test is a
fully automated data collection and analysis program. The first part of the test checks the vision
system’s ability to locate trained targets on the board and stencil. Each axis is then tested for
backlash and repeatability. By examining the test results in raw data and graphical form, we can
ensure the capability of the machine.
Prior to shipping, a minimum of 40 boards are run in print mode. Each board is inspected
for paste height and repeatability. This final verification ensures the machine is ready for the
The six sigma theory of machine capability states that, in order for a machine or a process
to have six sigma capability, the machine must be repeatable to twice the process specification
limit. The capability index used to track this number is Cp. Therefore, in order for a machine or
process to have six sigma capability it must have a Cp of 2 or greater.
The goal of our stringent refurbish process is to provide used equipment with this capability to the electronics
Below is an example of our sign off sheets attached to each finished product.
1. 24 VDC ___________
2. 12 VDC ___________
3. 120 VAC ___________
4. TV 1 ___________
5. TV 2 ___________
The following axis have been calibrated and inspected for functionality:
1. X AXIS ___________
2. Y AXIS ___________
3. Z AXIS ___________
4. THETA AXIS ___________
5. VISION Y AXIS ___________
6. VISION X AXIS ___________
7. SQUEEGEE STROKE AXIS ___________
8. SQUEEGEE UP/DOWN AXIS ___________
9. STENCIL WIPER ___________
10. DISPENSER ___________
All Systems meet or exceed manufactures specifications - denote any deviation below
Customer / Job:___________________________________
Technician Name: ________________________________
Technician Signature: _____________________________
Technical Manager Signature: _______________________