Ricoh DD 4450 Service Manual page 257

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SP Table
Paper registration
1.
Set SP2-34 (Printing pressure adjust) to a value of "30 rpm" (print from 30 rpm).
2.
Set SP8-10 (Test patterns) to a value of "6", then press the Start key.
3.
Access SP4-91 (Ink temperature), and check the ink temperature.
4.
Make 6 copies at speed 5 (finishing with 130 rpm). Perform the adjustment below for
all 6 copies.
Trial print: 30 rpm -> 1st print: 45 rpm -> 2nd print: 60 rpm ->3rd print: 75 rpm
-> 4th print: 90 rpm -> 5th print: 105 rpm -> 6th print: 130 rpm
When the ink temperature is low (below 15 degrees) or high (28 degrees or above),
you can adjust the machine to make only 6 copies (change SP 8-23 to 'On'). Then,
the 2nd print will not be made, because it is the same speed as the first print.
Trial print: 30 rpm ->1st print: 45 rpm ->2nd print: 45 rpm ->3rd print: 60 rpm
->4th print: 75 rpm ->5th print: 90 rpm ->6th print: 105 rpm ->7th print: 130 rpm
5.
The distance between the leading edge and first line should be 8mm, as shown
below.
6.
If this distance is not 8 mm, access SP6-101 to 107 and then input a value to adjust
the distance (range: -40 to 40, step: 1) for each of 6 copy samples.
The higher the value, the narrower the distance between the leading edge and 1st
line becomes (and vice-versa). Also, each step corresponds to approximately
0.58mm. Input the value that will bring the distance to 8mm.
7.
Perform the adjustment again for any of the samples that are still outside the 8mm
standard.
8.
Return SP2-34 (Printing pressure adjust) to the value it was at before the
adjustment.
6-108 Paper Regist:skip:15rpm
6-109 Paper Regist:skip:30rpm
6-110 Paper Regist:skip:45rpm
6-111 Paper Regist:skip:60rpm
6-112 Paper Regist:skip:75rpm
6-113 Paper Regist:skip:90rpm
6-114 Paper Regist:skip:105rpm
6-115 Paper Regist:skip:130rpm
C279
[-40 to 40 / 0 / mm]
38
SM Appendix

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