How to adjust
1 • If access is not already available, remove the lamp cover A, back cover B, right
hand end plate C and right hand drum cover D, (section 4•2 steps 1-4).
2 • Remove the two 2.5 mm countersunk screws from each side of the hardware
unit and carefully slide the unit partially out.
3 • Insert the back plane extender onto connector J1 on the driver board and care-
fully push the hardware unit back in.
4 • Fit a terminator to a SCSI connector on the scanner and SCSI cable and RS 232
service cable to the scanner and PC.
5 • Set the Dip switch to 8, (on).
6 • Cover the side of the heat sink on the driver board, (see the “caution” on the
previous page).
7 • Turn on the PC or Mac and scanner and start up Photoshop plug-in.
8 • Carry out a white calibration in transmission (section 5•5).
9 • Access the service program main menu (section 3•5).
10 • Lock the drum by pressing Lock drum on the indicator display.
11 • Remove the drum and mount the focus motor adjustment tool (fig. 1) onto the
drum platform.
Note: do not rotate the drum platform while the adjustment tool is fitted.
12 • Remove the 3 mm set screw securing the optics holder to the sensor lens and
remove the holder (fig. 1).
13 • From the service program main menu, select H, (Set focus to zero).
14 • Loosen the two 3 mm allen screws B (fig. 2) securing the focus motor to the
sensor. The motor will now move to the rear under spring pressure.
15 • From the service program main menu, select 1, (Move drum Z/P/L/.), then .,
(“dot” allows setting your own drum position parameters) and move the drum
spindle until the adjustment tool is directly in front of the sensor.
16 • Push the focus motor towards the drum tool until the sensor head and tool
touch. The tool should now rotate with light resistance from the sensor head.
17 • Maintain the pressure on the focus motor and tighten the two 3 mm allen
screws B on the focus motor. (Recheck the resistance on the adjustment tool
after tightening the screws).
18 • Select 1, (Move drum Z/P/L/.), then L to move the drum back to the lock posit-
ion and remove the adjustment tool.
19 • Refit the optics holder and tighten the 3 mm set screw.
20 • Make a focus calibration from photoshop plug-in.
21 • Press Alt + Option in plug-in and read the step values or * Show scanner opti-
ons in the service program can be selected and focus values for drums 0-9 will
be shown, together with barcode reading information.
22 • Check that these values are within the tolerances of the graph (fig. 3) by read-
ing the diameter on the drum flange.
23 • Remove the cover over the driver board heat sink.
24 • Remove the driver board extender, push the hardware unit fully in and refit
the two 2.5 mm countersunkscrews on either side of the unit.
25 • Refit the covers removed in step 1 in accordance with section 4•2.
Service Manual • ScanMate 4000/5000 Edition 1 • January 1996
Focus
5•3b
To Next Page
Loading...