Oki 4M - Manual (Page 11)

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(12) Temperature and humidity
Temperature
During operation
In storage
10 to 32 ˚C
–10 to +43 ˚C
20 to 80% RH (relative humidity)
10 to 90% RH (relative humidity)
No condensation is permissible.
Humidity
Caution: Temperature and humidity in storage are measured with the OKIPAGE 4w plus/4m
being packed; they are valid for one year.
(13) Noise During operation: 48 dB (A) or less
Standby: 38 dB (A) or less
(14) Consumables Toner cartridge kit 1,000 (5% duty)
Image drum cartridge 10,000 (at continuouts printing)