Lexmark W840 Service Manual

Diagnostic information 2-25
4024-XXX
2 Check the tray.
Are the tray lift sector gear 12T of tray 4 or the
surrounding parts of it damaged?
Go to step 3. Replace the tray lift
sector gear 12T or
any other damaged
components.
3 Check the tray 4 media feed lift motor for proper
operation.
Pull out the media tray, then push it back in.
Does the tray lift up properly?
Go to step 7. Go to step 4.
4 Check the tray 4 media feed lift motor for proper
connection.
Is the above motor connect properly?
Go to step 5. Replace the
connection.
5 Check the tray 4 media feed lift motor for proper
operation.
Replace the media feed lift motor for tray 4 with that for
tray 3.
Pull out the media tray, then push it back in.
Does the tray lift up properly?
Reinstall the media
feed lift motor for
tray 3 as it
previously was, and
then replace the
motor for tray 4 with
a new one.
Go to “2X 500-
sheet drawer
(2TM)—media feed
lift motor removal”
on page 4-17.
Go to step 6.
6 Check the 2TM/TTM controller card assembly and the
printer engine card assembly for proper connection.
Are connectors P541 and P413 on the above cards
connected properly?
Go to step 7. Replace the
connection.
7 Check the tray 4 sensor (media level) for proper
operation.
1. Enter Diagnostics mode.
2. Select INPUT TRAY TESTS.
3. Select Sensor Tests.
4. Select Tray 4.
5. Select Media level.
Remove the media tray assembly, and move the pick
roll with your finger in an up and down motion. Avoid
touching the rubber roll surface.
Does the operator panel change every time the sensing
area is blocked on the above sensor?
Go to step 9. Go to step 8.
8 Check the tray 4 sensor (media level) for proper
connection.
Is the above sensor connected properly?
Replace the sensor
(media level).
Go to “2X 500-
sheet drawer
(2TM)—sensor
(media level)
removal” on
page 4-23.
Replace the
connection.
9 Check the tray 4 switch (media size) for proper
connection.
Is the above switch connected properly?
Replace the switch
(media size).
Go to “2X 500-
sheet drawer
(2TM)—switch
(media size)
assembly removal”
on page 4-8.
Replace the
connection.
Step Check Yes No

Lexmark W840 Specifications

General

Color	No
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	6.8 s
Print speed (black, normal quality, A4/US Letter)	50 ppm
Internal memory	256 MB
Sound power level (standby)	28 dB
Sound pressure level (printing)	54 dB
Total input capacity	1100 sheets
Total output capacity	500 sheets
Maximum input capacity	5100 sheets
Display	LCD
Maximum print size	297 x 420 mm
Media types supported	Plain 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 size	A3
Page description languages	PDF 1.5, PPDS
I/O ports	USB, Parallel, 1 internal solutions port (ISP)
Mac compatibility	Yes
Compatible operating systems	Windows, Linux, UNIX, Mac, NetWare and OS/400
Recommended operating temperature range (T-T)	16 - 32 °C
Sustainability certificates	ENERGY STAR
Power consumption (standby)	9 W
Power consumption (printing)	700 W
Power consumption (PowerSave)	105 W
Bundled software	MarkVision Professional
Operating relative humidity (H-H)	8 - 80 %

Weight and Dimensions

Dimensions (WxDxH)	616 x 520 x 475 mm