Ricoh DD 4450 Service Manual page 250

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Master writing speed
1.
Input SP8-10 (Test patterns) and enter "6", then press the Start key.
2.
Exit the SP mode, then print 10 copies at 90 rpm (speed 3). Use the 10th
print for the adjustment.
3.
The length of the 8 squares in the feed direction should be 130 mm, as
6-10
shown above.
4.
If it is not, calculate the reproduction ratio using the following formula.{(130 -
Value) / 130} x 100 = ± X.X % (Round off to one decimal place)
Example: If the value is 133, {(130 - 133) / 130} x 100 = - 2.3 %
5.
Access SP6-10, input the calculated ratio, and press the Enter key.
6.
Repeat the procedure to make sure that the ratio is correct.
Master writing length
6-11
Adjust the whiting length of the master making unit.
Registration buckle 60 to
105rpm
Adjust the flexible volume of the paper feed. The larger the number, the greater
6-12
the amount of deflection flexible volume.
ON: Detection of the ADF.
OFF: The ADF is considered always exist.(Used in the test)
Registration buckle 130rpm
Adjust the flexible volume of the paper feed. The larger the number, the greater
6-13
the amount of deflection flexible volume.
ON: Detection of the ADF.
OFF: Always be considered the maximum. (Used in the test)
6-14 Paper regist position 60rpm
6-15 Paper regist position 75rpm
6-16 Paper regist position 90rpm
6-17 Paper regist position 105rpm
SM Appendix
[-5.0 to 5.0 % / -0.4 / 0.1%]
[-5.0 to 5.0 % / 0.0 / 0.1%]
[0 to 100 / 18 / PLS]
[0 to 100 / 1 / PLS]
[-5.0 to 5.0mm / 1.0 / 0.5mm]
[-5.0 to 5.0mm / 1.0 / 0.5mm]
[-5.0 to 5.0mm / 1.0 / 0.5mm]
[-5.0 to 5.0mm / 1.0 / 0.5mm]
31
SP Table
C279

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