Lexmark W840 Service Manual

Diagnostic information 2-1
4024-XXX
2. Diagnostic information
Start
CAUTION: Unplug the power cord from the electrical outlet before you connect or disconnect any cable
or electronic board or assembly for personal safety and to prevent damage to the printer. Disconnect
any connections between the printer and PCs/peripherals.
CAUTION: The printer weighs 47.7 kg (105 lb.) and requires at least two people to lift it safely. Make sure your
fingers are not under the printer when you lift or set the printer down.
CAUTION: If the printer is kept on, never touch the conductive parts while it is not specifically required. The
power switch and inlet of the low voltage power supply card (LVPS card) assembly is live even while the power
supply is cut off. Never touch the live parts.
Warning: When operating the driving units using the diagnostics or other tools, be sure to keep them covered
unless otherwise specified.
Warning: When operating the driving units using the diagnostics or other tools, never touch the driving units.
When operating the driving units using diagnostics or other tools, be sure to follow the procedures
in this manual.
CAUTION: Be careful to avoid burns by safely handling hot parts.
Warning: Servicers should wear a wrist band or the like to remove static electricity from their body, grounding
their body while working. See “Handling ESD-sensitive parts” on page 4-1.
Using service checks
• Verify the installation status. See “Confirm the installation status” on page 2-2.
• Does POR (power on reset) stop? Check the POR sequence. See “POR (Power-On Reset) sequence”
on page 2-2.
User attendance messages are in the User’s Guide.
Note: There may be printer error code messages that are not contained in this service manual. A more
complete list appears in the Printer Service Manual.
To determine the corrective action necessary to repair the options, use the following table:
If the error code or message
appears in the
Go to For additional information, see
2X 500-Sheet Drawer (2TM) “Error code messages - 2X 500-
sheet drawer (2TM)” on
page 2-3
“Service checks - 2X 500-sheet
drawer (2TM)” on page 2-5
2000-Sheet Dual Input (TTM) “Error code messages - 2000-
sheet dual input (TTM)” on
page 2-36
“Service checks - 2000-sheet
dual input (TTM)” on page 2-38
High Capacity Feeder (HCF) “Error code messages - HCF”
on page 2-69
“Service checks - HCF” on
page 2-70
Duplex (DUP) “Error code messages - DUP”
on page 2-83
“Service checks - DUP” on
page 2-84
Exit 2 (EX2) “Error code messages - EX2”
on page 2-92
“Service checks - EX2” on
page 2-93

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