Ir Area - Konica Minolta Bizhub C350 Service Manual

bizhub C350 Field Service Ver. 2.0 April 2004
4.4.6

IR Area

• Use the following Color Chart for the adjustment of the Scanner Section.
• If the Color Chart is not available, a scale may be used instead.
C
B
A
Original Reference
A. Left Image
Functions • To adjust part-to-part variations in accuracy of IR parts and their mounting accuracy
by varying the scan start position in the CD direction.
Use • When the CCD Unit is replaced.
• When the Original Glass is replaced.
• The Scanner Home Sensor has been replaced.
Adjustment
Specification
Adjustment If the 0-mm position on the sample copy is on the right side of the correct 0-mm position
Instructions perpendicularly to the feeding direction (less than -1 mm), decrease the setting.
If the 0-mm position on the sample copy is on the left side of the correct 0-mm position
perpendicularly to the feeding direction (exceeding 1 mm), increase the setting.
Adjustment 1. Call the Tech. Rep. Mode to the screen.
2. Touch these keys in this order: "Machine Adjust" → "IR Area."
Procedure
3. Position the Color Chart correctly so that the original reference point is aligned with
the scale.
4. Press the Start key to make a copy.
5. Check point A on the image of the copy.
6. If the image falls outside the specified range, touch "Left Image."
7. Change the setting using the Up/Down key.
8. Press the Start key to make a copy.
9. Check point A of the image on the copy to see if the specifications are met.
10.Make adjustments until the specifications are met.
• A: Left Image
• B: Top Image
• C: CD-Mag
• D: FD-Mag
D
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•Adjust so that width A on the sample copy
made falls within the specified range.
A
•An adjustment must have been completed
correctly of "Left Margin" of PRT Area.
Specifications
A : 10 ± 1.0 mm
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Setting Range
-10.0 to +10.0 (in 0.1 mm increments)
3-49
TECH. REP. MODE