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Lexmark W840 Service Manual

Lexmark W840
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Diagnostic aids 3-9
4024-XXX
DUPLEX TESTS
Only displayed if a duplex option is installed.
Quick Test (duplex)
This test prints a duplex version of the Quick Test that can be used to verify that the correct placement of the top
margin on the back side of a duplex page. You can run one duplexed page (Single), or continue printing
duplexed pages (Continuous) until Stop ( ) is pressed.
Make sure either Letter or A4 is loaded in the default paper source. If the default source only supports
envelopes, then the Quick Test will be printed from Tray 1.
To run the Quick Test (duplex):
1. Select DUPLEX TESTS from DIAGNOSTICS.
2. Select Quick Test from DUPLEX TESTS.
3. Select Single or Continuous.
The single Duplex Quick test cannot be canceled.
The printer attempts to print the Quick Test Page from the default paper source. If the default paper
source only supports envelopes, then the page is printed from Tray 1.
Check the Quick Test Page for the correct offset between the placement of the first scan line on the
front and back side of a duplexed sheet.
The single test stops automatically when a single duplex sheet is printed, and the continuous test continues until
you press Stop (
).
Sensor Test (duplex)
This test is used to determine whether or not the duplex sensors and switches are working correctly. The test
allows you to actuate the duplex input sensor located in the back part of the duplex unit and the duplex exit
sensor located in the return paper path.
1. Select DUPLEX TESTS from DIAGNOSTICS.
2. Select Sensor Test from DUPLEX TESTS.
The message Sensor Test Testing displays.
3. Select Duplex wait from the Sensor Test menu.
4. Manually actuate each of the duplex wait sensors. When the sensor is closed, Closed displays; when the
sensor is open, Open displays.
Press Back () or Stop ( ) to exit the test.

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Lexmark W840 Specifications

General IconGeneral
ColorNo
Print technologyLaser
Maximum resolution1200 x 1200 DPI
Time to first page (black, normal)6.8 s
Print speed (black, normal quality, A4/US Letter)50 ppm
Internal memory256 MB
Sound power level (standby)28 dB
Sound pressure level (printing)54 dB
Total input capacity1100 sheets
Total output capacity500 sheets
Maximum input capacity5100 sheets
DisplayLCD
Maximum print size297 x 420 mm
Media types supportedPlain paper, envelopes, card stock, transparencies, paper labels
Media weight (tray 1)Plain paper: 64 to 216 g/m2; Card stock: up to 199 g/m2 Index
Maximum ISO A-series paper sizeA3
Page description languagesPDF 1.5, PPDS
I/O portsUSB, Parallel, 1 internal solutions port (ISP)
Mac compatibilityYes
Compatible operating systemsWindows, Linux, UNIX, Mac, NetWare and OS/400
Recommended operating temperature range (T-T)16 - 32 °C
Sustainability certificatesENERGY STAR
Power consumption (standby)9 W
Power consumption (printing)700 W
Power consumption (PowerSave)105 W
Bundled softwareMarkVision Professional
Operating relative humidity (H-H)8 - 80 %
Weight and Dimensions IconWeight and Dimensions
Dimensions (WxDxH)616 x 520 x 475 mm

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