Lexmark W840 Service Manual

2-54 Options Service Manual
4024-XXX
3 Check the tray 4 rolls.
Pull out tray 4, and check it.
Are the feed roll, separation roll, and pick roll for
transport free of excess wear and contamination?
Go to step 4. Clean or replace the
feed roll, separation
roll, and pick roll.
Go to “2000-sheet
dual input (TTM)—
feed roll removal”
on page 4-101,
“2000-sheet dual
input (TTM)—
separation roll
removal” on
page 4-105, and
“2000-sheet dual
input (TTM)—pick
roll removal” on
page 4-108.
4 Check the media position.
Does the media touch the sensor (pre-feed) of the tray 4
media feed unit assembly?
Remove the media. Go to step 5.
5 Check the tray 4 sensor (pre-feed) for proper operation.
1. Enter Diagnostics mode.
2. Select INPUT TRAY TESTS.
3. Select Sensor Tests.
4. Select Tray 4.
5. Select Pre-feed.
Remove the media tray assembly.
Does the display on the operator panel change every
time a white piece of paper is placed over the sensing
area of the above sensor?
Go to step 7. Go to step 6.
6 Check the tray 4 sensor (pre-feed) for proper
connection.
Is the above sensor connected properly?
Replace the sensor
(pre-feed).
Go to “2000-sheet
dual input (TTM)—
sensor (media out)
removal” on
page 4-97.
Replace the
connection.
7 Check the connection between the 2TM/TTM controller
card assembly and the printer engine card assembly.
Are the above cards connected properly?
Go to step 8. Replace the
connection.
8 Check the tray 4 media feed lift motor for proper
operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Tray 4 feed mtr.
Does the above motor rotate normally?
Go to step 11. Go to step 9.
9 Check the tray 4 media feed lift motor for proper
connection.
Is the above motor connected properly?
Go to step 10. 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