COPY IMAGE ADJUSTMENT
SM 3-15 C262/C265
Replacement
Adjustment
3.4.3 VERTICAL MAGNIFICATION ADJUSTMENT
Purpose: To adjust the vertical magnification to within the adjustment standard by
changing the master writing speed.
Adjustment standard: Within 100 ± 1.0%
CAUTION: This adjustment is required every time the ECU is replaced.
1. Turn on the main switch, access SP8-005-1 (TH Test Patterns), and print
pattern number 6.
2. On the printout, measure the distance of 15 intervals in the sub-scan direction,
as shown in the diagram.
3. The distance should be 122 mm. If it is not 122 mm, calculate the necessary
adjustment with the following formula.
[(122 - measured value) / 122] x 100 = x.x %
4. Access SP6-001-7 (Master writing speed) and adjust the value (x.x %).
5. Access SP8-005-1 (TH Test Patterns) and print pattern number 6.
6. Check the distance of 15 intervals in the sub-scan direction again, to ensure it
is within specifications
NOTE: The image scanning speed can be adjusted with SP6-001-5, -6 (Scanning
speed). If you change the speed with this SP, the vertical magnification
also changes. Normally, do not use this SP mode to adjust the vertical
magnification.
C262R209.WMF
122mm
Sub-scan
direction
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