Ricoh DD 4450 Service Manual page 197

Specifications
3 enlargements and 4 reductions
Enlargement
Reproduction
Ratios:
Zoom:
Power Source:
Noise Emission
Sound Power
Not more than 45
Standby:
Copying 60 Not more than 73
rpm:
Copying 90 Not more than 76
rpm:
Copying Not more than 81.5
130 rpm:
The above measurements were made in accordance with ISO 7779 standard.

C279
A3 version
141%
122%
115%
Full Size 100%
93%
87%
Reduction
82%
71%
50 to 200%, in 1% steps
America: 120 V, 60 Hz
Europe, Asia: 220 – 240 V, 50/60 Hz
Operating Position Sound
Level
Not more than 31 dB (A)
dB (A)
Not more than 59 dB (A)
dB (A)
Not more than 62 dB (A)
dB (A)
Not more than 66 dB (A)
dB (A)
DLT version
155%
129%
121%
100%
93%
77%
74%
65%
Power Level
1-2 SM Appendix