Printer 710_810 v8 Squeegee Module.pdf - 第17页

SQUEE GEE M ODULE CALIBR ATIONS Chapter Issue 8 Oct 06 Technical Reference Manual 9.17 The figure belo w gives a representat ion of the Ptest.da t file. Squeegee Reference Hei ght (Non Pressure Feedback) The squeegee ref…

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SQUEEGEE MODULE
CALIBRATIONS
9.16 Technical Reference Manual Chapter Issue 8 Oct 06
6. Fit the required squeegees to the front and rear squeegee mounts as
detailed in the Replacement Procedures section of this chapter.
7. Select Continue, the following machine sequence is carried out:
a. The rails are checked for the presence of a board.
b. The rising table is driven to print height.
c. The board clamps are closed.
d. The print carriage drives the front squeegee over the front rail.
e. The rear squeegee is driven down to dwell height.
f. The front squeegee is driven down by the stepper motor until contact with
the board clamp is made.
g. The front squeegee continues to be driven down until a 2kg pressure
difference is detected, the motor pauses.
h. The amount of steps (the stepper motor took to get to this position) and
the pressure are recorded.
i. The stepper motor drives downwards another 15 steps, this is recorded
with the pressure detected. This is repeated a further 18 times to achieve
a total of 20 results.
8. The rear squeegee is calibrated in a similar manner.
9. Select Exit button on completion of the reference height calibration.
10. Select Exit.
11. Select Exit.
The squeegee reference height calibration is now complete.
Ptest.dat File NOTE
For a Ptest.dat file to be generated, Data Logging must be set to On. To achieve
this select Maint., select Test Cycles and select Data Log On.
The Ptest.dat file is located on the hard drive of the machine PC. To view the
file carry out the following procedure:
1. From the Windows start menu, select Programs - Accessories - Windows
Explorer.
2. Under My Computer, locate and open the E:\Log\Ptest.dat file.
The file displays 20 front squeegee readings followed by 20 rear squeegee
readings, showing the relationship between steps (displacement) and pressure
applied. From the readings taken, the front and rear pressure factors and
squeegee reference heights are calculated. At the end of the file, 5 readings of
flood pressure and reference height readings are displayed (these are also
listed in the Config.txt file).
SQUEEGEE MODULE
CALIBRATIONS
Chapter Issue 8 Oct 06 Technical Reference Manual 9.17
The figure below gives a representation of the Ptest.dat file.
Squeegee
Reference Height
(Non Pressure
Feedback)
The squeegee reference height is carried out after a squeegee change on
machines without the Pressure H/W option. This procedure must be used if
Pressure H/W is disabled.
Use the following procedure to set the squeegee reference height:
1. Remove the screen from the machine.
2. Select Maint..
3. Select Calib Machine.
4. Select Pressure.
5. Select Calibrat Heights. The message ‘Ensure that the correct squee-
gees are fitted!’ is highlighted.
6. Fit the required squeegees to the front and rear squeegee mounts as
detailed in the Replacement Procedures section of this chapter.
7. Select Continue, the following machine sequence is carried out:
a. The rails are checked for the presence of a board.
b. The rising table is driven to print height.
(Fwd Press Flood) (Rear Press Flood) (Flood Ref. Height) (Front Ref. Height) (Rear Ref. Height)
33.1004 31.9668 3951.6971 3947.7037 3935.1178
(steps)
(kg)
Rear Squeegee
4301.000000
4286.000000
4271.000000
4256.000000
4241.000000
4226.000000
4211.000000
4196.000000
4181.000000
4166.000000
4151.000000
4136.000000
4121.000000
4106.000000
4091.000000
4076.000000
4061.000000
4046.000000
4031.000000
4016.000000
22.480215
21.961163
21.503175
21.045188
20.587201
20.068149
19.640694
19.182706
18.724719
18.266732
17.747680
17.289692
17.801172
16.343185
15.885198
15.396678
14.908158
14.480703
13.992184
13.564729
Front Squeegee
(steps)
(kg)
4039.000000
4324.000000
22.388617
21.930630
21.472643
21.045188
20.587201
20.129213
19.640694
19.213239
18.694187
18.266732
17.839277
17.350757
16.892770
16.465315
16.007328
15.579873
15.121886
14.724963
14.236444
13.778456
4309.000000
4294.000000
4279.000000
4264.000000
4249.000000
4234.000000
4219.000000
4204.000000
4189.000000
4174.000000
4159.000000
4144.000000
4129.000000
4114.000000
4099.000000
4084.000000
4069.000000
4054.000000
NOTE
Text shown in italics is not
displayed in the Ptest.dat file.
SQUEEGEE MODULE
CALIBRATIONS
9.18 Technical Reference Manual Chapter Issue 8 Oct 06
c. The board clamps are closed.
d. The print carriage drives the front squeegee over the front rail.
e. The front and rear squeegees are driven down by the stepper motor to
dwell height.
8. Select Step Down. The front squeegee is driven down to the current
reference height position.
9. Using a 0.1mm shim placed between the front rail and the front squeegee,
check that the shim moves with a small amount of friction.
10. If the gap is correct, go to Step 14.
11. Use the Step Up/Step Down buttons to adjust the height of the squeegee.
12. Recheck the gap.
13. Repeat Steps 11 and 12 until the correct gap is achieved.
14. Select Rear Squeegee. The print carriage drives the rear squeegee over
the front rail and the squeegee is driven down to the current reference height
position.
15. Using a 0.1mm shim placed between the front rail and the rear squeegee,
check that the shim moves with a small amount of friction.
16. If the gap is correct, go to Step 20.
17. Use the Step Up/Step Down buttons to adjust the height of the squeegee.
18. Recheck the gap.
19. Repeat Steps 17 and 18 until the correct gap is achieved.
20. Select Save.
21. Select Exit.
22. Select Exit.
23. Select Exit.
24. Select Exit.