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Scanner Adjustments and Calibrations
7 Repeat steps 4 to 6 until the camera sees a total of six SWU's.
8 When you have six SWU's in total, use the CCD-Centering lever to adjust
9 Check the focus again because large changes to the Scan-Width adjustment
10 If the focus needed adjusting, start over with the Scan-Width from step 4,
11 When you are finished, and both the focus and the Scan-Width are correct,
12 Proceed to the Vertical Positioning section without altering anything about
1 SCANtest 6 should still show Uncorrected Light Profile, Green. If not,
2 Loosen the Camera Back-Plate Fixing Screws if they are not already
HP Designjet T1100 MFP, 4500mfp, 4500 Scanner, 820 MFP Service Manual
5-16
the camera. If you don't see the Stitching Wire, then the camera has to be
pulled back quite a lot because the scan-width is too narrow.
the camera so that there is three SWU's on each side of the camera as
shown below:
also affects the focus.
because a slight change in the focus will affect the Scan-width considerably.
tighten the three Camera Fixing Screws without moving the camera.
your set-up.
Vertical Positioning
The purpose of the vertical positioning is to adjust the camera, so the
Green CCD Scanline looks at the correct vertical position on the Optical
Adjustment Pattern as seen on the picture below. Furthermore it ensures
that the Scanline is horizontal.
change it to those settings.
loose.
Stitching Wire

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4500mfp, 4500, 820 mfp

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