Lexmark CS748de, Service Manual

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General information
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Electrical and power specifications
The following table specifies nominal average power requirements for the basic printer configurations. All power
levels are shown in Watts (W). Maximum current is given in Amperes (A).
Low-voltage models
•
110 to 127 V at 50 to 60 Hertz (Hz) nominal
•
99 to 139.7 V, extreme
• 100 V at 50 to 60 Hertz (Hz) nominal
• 90 to 121 V, extreme
High-voltage models
• 220 to 240 V at 50 to 60 Hz (not available in all countries)
• 198 to 259 V, extreme
Notes:
• Using a power converter or inverter with the Lexmark C740 Series printers is not recommended.
• The C740 series duplex models (C746dn, C746dtn, C748de, C748dte) are Energy Star Qualified.
• All models ship with Sleep Mode = On.
• The default time out to Sleep mode is 30 minutes.
Web Bulb Temperature—Power Off 26.7° C (80.1° F) Maximum
* In some cases performance specifications, such as paper OCF and EP cartridge usage, are specified to
be measured at an ambient condition.
Printing states C746n/dn/dtn Lexmark C748e/de/dte
Off 0W 0W
Sleep mode 6.8W 7.3W
Hibernate mode 0.55W 0.55W
Ready Mode 48W 48W
Simplex Printing 535W 535W
Duplex Printing 420W 420W
Typical Electricity Consumption
Test
3.561 kwh / wk 3.687 kwh / wk
Typical Electricity Consumption
Test (Eco-Mode)
2.375 kwh / wk 2.491 kwh / wk
Average current while printing
(110 Volts)
8.3 A 8.3 A
Average current while printing
(120 Volts)
7.5 A 7.5 A
Average current while printing
(230 Volts)
3.8 A 3.8 A
Environment Specifications