Lexmark MS431DN User's Guide PDF

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or prescribed service conditions. The printer has a non-serviceable printhead assembly that contains a laser

with the following speciﬁcations:

Class: IIIb (3b) AlGaInP

Nominal output power (milliwatts): 25

Wavelength (nanometers): 775–800

Power consumption

Product power consumption

The following table documents the power consumption characteristics of the product.

Note: Some modes may not apply to your product.

Mode Description Power consumption (Watts)

Printing The product is generating hard‑copy output from electronic

inputs.

One-sided: 550 (B3340, MS331); 570

(B3442, M1342, MS431, MS439)

Two-sided: 300 (B3340, MS331); 305

(B3442, M1342, MS431, MS439)

Copy The product is generating hard‑copy output from hard‑copy

original documents.

N/A

Scan The product is scanning hard‑copy documents. N/A

Ready The product is waiting for a print job. 5.5 (B3340, MS331), 4.9 (B3442, M1342,

MS431, MS439)

Sleep Mode The product is in a high‑level energy‑saving mode. 0.9

Hibernate The product is in a low‑level energy‑saving mode. 0.1

O The product is plugged into an electrical outlet, but the

power switch is turned o.

0.1

The power consumption levels listed in the previous table represent time-averaged measurements.

Instantaneous power draws may be substantially higher than the average.

Values are subject to change. See

www.lexmark.com for current values.

Sleep Mode

This product is designed with an energy-saving mode called Sleep Mode. The Sleep Mode saves energy by

lowering power consumption during extended periods of inactivity. The Sleep Mode is automatically engaged

after this product is not used for a

speciﬁed

period of time, called the Sleep Mode Timeout.

Factory default Sleep Mode Timeout for this product (in minutes): 15

By using the conﬁguration menus, the Sleep Mode Timeout can be modiﬁed between 1 minute and 120 minutes.

If the print speed is less than or equal to 30 pages per minute, then you can set the timeout only up to 60

minutes. Setting the Sleep Mode Timeout to a low value reduces energy consumption, but may increase the

Notices 145

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Lexmark MS431DN