Lexmark X543 Service Manual

							Diagnostic information2-67
Lexmark confidential until announce7525xxx
ADF cover open service check
ADF streak service check
Step Questions / actions Yes No
1 Is the ADF cover properly closed Go to step 3. Go to step 2.
2 Close the ADF cover.
Does the problem go away?Issue resolved Go to step 3.
3 Perform the ADF cover open sensor test. Go 
to “Scanner Tests” on page 3-25. Does 
the sensor work properly.Go to step 4 Go to step 8.
4 On the bottom of the ADF cover, inspect the 
ADF cover closed sensor actuator. Does it 
move freely? Go to step 6. Go to step 5.
5 Fix the actuator so it moves freely.
Does this fix the problem?Issue resolved. Go to step 6.
6 Remove the ADF rear cover and inspect the 
ADF cover closed sensor for dirt and debris.
Is there dirt and debris present?Go to step 7. Go to step 8.
7 Clean the dirt and debris from the sensor. 
Does this fix the issue?Issue resolved. Go to step 8.
8 Inspect the connections on the ADF relay 
card in the ADF. Are all the connections 
properly connected? Go to step 9. Secure all the connections.
9 Check the ADF cable for continuity. Is there 
continuity?Go to step 10. Replace the ADF cable.Go 
to “ADF cable” on 
page 4-65 
10 Check for signals or voltages from JADF1 
on the controller board. Pin 11 and 12 
should measure +24VDC. Pin 5 should 
measure +14VDC. Are there signals or 
voltages present?Replace the ADF.Go to 
“Duplex ADF removal” on 
page 4-63, or “Simplex 
ADF removal” on 
page 4-64Replace the controller 
board. Go to “Controller 
board removal” on 
page 4-16.
Step Questions / actions Yes No
1 Do streaks appear on the middle of 
scans when using the ADF?Clean the ADF glass on the 
flatbed using a lint-free cloth. 
Also, clean the separator roll 
and pad with a damp cloth.No issue to fix. 
						

							2-68Service Manual 7525xxxLexmark confidential until announce
ADF paper jam service check
Note:  This service check should be used if the paper feeds and jams in the ADF. If the paper is not feeding into 
the ADF see “ADF feed errors service check” on page 2-69. 
Step Questions / actions Yes No
1 If the ADF is multi-feeding, check for dirt on 
the ADF separator pad and ADF separator 
rollers. Are they dirty?Clean them with a lint free 
cloth and isopropyl alcohol.Replace the separator pad 
and ADF pick roll.
2 If the paper is skewing when it is fed into the 
ADF, check the paper guide width. Is it set 
correctly?Go to step 3. Set the paper guides so 
they contact the edges of 
the paper.
3 If paper is skewing when fed or jamming 
check to see if the top cover is open or ajar. 
Is the ADF top cover open or ajar?Properly close the top 
cover.If the paper is jamming in 
the ADF, go to step 6
4 Is paper failing to feed into the ADF? Go to step 5. There is no issue.
Perform the ADF paper present, scan 1st 
and scan 2nd sensor tests. Go to “Scanner 
Tests” on page 3-25.
Are the sensors working properly.Go to step 6 Go to step 9.
6 Check the leading edge of the paper to 
ensure the paper is not curled or bent in a 
way that would keep it from contacting the 
paper present sensor actuator. Is the paper 
damaged?Bad media. Go to step 7.
7 Is there dirt in the sensors, or is the paper 
present actuator stuck?Clean the sensors, or 
remove debris from the 
actuators.Go to step 8.
8 Are the sensor actuators on the ADF 
mechanism cover damaged?Replace the ADF. Go to step 9.
9 Is the ADF connector properly connected to 
JADF1 on the system board?Go to step 10. Properly connect the cable 
to the system board.
10 Inspect the connections on the ADF relay 
card in the ADF. Are all the connections 
properly connected? Go to step 11. Secure all the connections.
11 Check the ADF cable for continuity. Is there 
continuity?Go to step 11. Replace the ADF cable.
11 Check for signals or voltages from JADF1 
on the controller board. Pin 11 and 12 
should measure +24VDC. Pin 5 should 
measure +14VDC. Are there signals or 
voltages present?Replace the ADF unit. See 
“ADF unit removal” on 
page 4-54.Replace the controller 
board. Go to “Controller 
board removal” on 
page 4-16. 
						

							Diagnostic information2-69
Lexmark confidential until announce7525xxx
ADF feed errors service check
ADF Duplex service check
Step Questions / actions Yes No
1 If the ADF is multi-feeding, check for 
dirt on the ADF separator pad and 
ADF separator rollers. Are they dirty?Clean them with a lint free 
cloth and isopropyl alcohol.Replace the separator pad and 
ADF pick roll.
2 If the paper is skewing when it is fed 
into the ADF, check the paper guide 
width. Is it set correctly?Go to step 3. Set the paper guides so they 
contact the edges of the paper.
3 If paper is skewing when fed or 
jamming check to see if the top cover 
is open or ajar. Is the ADF top cover 
open or ajar?Properly close the top cover. If the paper is jamming in the 
ADF, See “ADF paper jam 
service check” on page 2-68
4 Is paper failing to feed into the ADF? Go to step 5. There is no issue.
5 Is the leading edge of the paper 
wrinkled or torn?Use different media. Go to step 6
6 Perform the ADF paper present 
sensor test. Go to “Scanner Tests” 
on page 3-25.
Is the sensor working properly?Go to step 7. Properly connect all the 
connections in the ADF relay 
card.
7 Check the actuators to see if they are 
jammed, or damaged.
Are they jammed or damaged?Replace the ADF. Go 
to“Duplex ADF removal” on 
page 4-63, or “Simplex ADF 
removal” on page 4-64Go to step 8.
8 Properly connect all the connections 
in the ADF relay card and controller 
board.
Did this fix the situation?Problem resolved Go to step 9.
9 Check the ADF cable for continuity.  Go to step 6. Replace the ADF cable. Go to 
“ADF cable” on page 4-65
10 Replace the ADF Go to “Duplex ADF 
removal” on page 4-63, or “Simplex 
ADF removal” on page 4-64. Does 
this fix the situation?Problem solved Replace the controller board. Go 
to “Controller board removal” 
on page 4-16
Step Questions / actions Yes No
1 Perform sensor 1, and sensor 2 
sensor tests. Go to “Scanner Tests” 
on page 3-25.
Are the sensors working properly?Go to step 2. Go to step 3.
2 Check the ADF sensor actuators to 
see if they are dirty or jamming. 
Are the actuators ok?Go to step 3. Clean the actuators. If any 
actuators on the ADF are 
broken, replace the ADF unit. Go 
to “Duplex ADF removal” on 
page 4-63 
						

							2-70Service Manual 7525xxxLexmark confidential until announce
Modem / fax card service check
3 Check all the connections on the ADF 
relay card. Are they properly 
connected?Go to step 4 Properly connect all the 
connections.
4 Check the ADF cable to ensure it is 
properly connected to CN 15 on the 
ADF relay card, and main controller 
board at JADF1. Is the ADF cable 
properly connected?Go to step 5. Properly connect the ADF cable 
to its connections.
5 Check the ADF cable for continuity. 
Make sure pin22 has continuity. Is 
there continuity on pin 22? Go to step 6. Replace the ADF cable.Go to 
“ADF cable” on page 4-65
6Replace the ADF. Go to “Duplex ADF 
removal” on page 4-63. Does this fix 
the situation?Problem solved Replace the controller board. Go 
to “Controller board removal” 
on page 4-16.
Step Questions / actions Yes No
1 Is the phone line properly connected to the 
modem card and the wall jack?Go to step 2. Go to step 3.
2 Properly connect the phone line to the 
modem card and wall jack.
Did this fix the problem?Problem resolved. Go to step 3.
3 Test the phone line’s ability to send and 
receive calls.
Did the phone line work properly?Go to step 5. Go to step 4.
4 Use the MFP on a properly functioning 
phone jack.
Did this fix the problem?Problem resolved. Go to step 5.
5 Is the modem card ribbon cable properly 
connected to the system board at JMOD2 
and the modem card?Go to step 7. Go to step 6.
6 Properly connect the modem card cable to 
the modem card and system board.
Did this fix the problem?Problem resolved. Go to step 7.
7 Check the modem card ribbon cable for 
continuity. Is there continuity?Go to step 8. Replace the modem card 
cable.
8 Check the voltages from connector JMOD2 
on the controller board. Check Pin 4 and 5 
for +3.3VDC. Pin 7 for +5VDC. 9, 11, 13, 15, 
17, and 19 are grounds. Are the signals or 
voltages present?Replace the modem card. 
See “Modem card 
removal” on page 4-46.Replace the system board. 
See “System board 
removal” on page 4-36. 
						

							Diagnostic information2-71
Lexmark confidential until announce7525xxx
Fax transmission service check
Note:  Before performing this service check, verify that the correct country code for the MFP is selected. This 
setting must match the country in which the MFP is used to transmit and receive faxes. If the setting is wrong, 
the modem settings can be changed in the Fax/SE menu. See step 14. These settings should only be performed 
with guidance from your second-level support.
Step Questions / actions Yes No
1 Is the phone line properly connected to the 
modem card and the wall jack?Go to step 2. Go to step 3.
2 Properly connect the phone line to the 
modem card and wall jack.
Did this fix the problem?Problem resolved Go to step 3.
3 Test the phone line’s ability to send and 
receive calls.
Did the phone line work properly?Go to step 5. Go to step 4.
4 Use the MFP on a properly functioning 
phone jack.
Did this fix the problem?Problem resolved. Go to step 5.
5 Is the phone line being used by the MFP an 
analog line?Go to step 8. Go to step 6.
6 Is the line being used a VOIP line? Go to step 7. Go to step 8.
7 Have the system administrator verify that 
the VOIP server is configured to receive 
faxes.
Is the server properly configured?Go to step 8. Stop here. The issue is 
VOIP related. The VOIP 
provider needs to change 
the server configuration.
8 Is the MFP on a PABX? Go to step 9. Go to step 10.
9 Enable Behind a PABX under fax settings 
in the Administration menu.
Did this fix the issue?Problem fixed. Disable Behind a PABX, 
and go to step10.
10 Is a dial prefix needed to get an outside 
line?Go to step 11. Go to step 12.
11 Try sending a fax using a dial prefix.
Did the fax transmit?Problem fixed. Go to step 12.
12 Is the fax failing to send to one specific 
destination?Go to step 13. Go to step 14.
13 Check the device that cannot receive a fax. 
Can it send a fax?Go  to  step  14. Stop here. The issue is with 
the other device.
14 press **411 to enter the Fax/SE Menu. 
Select “Print Logs”.
Print the T30 transmission log. Check the 
error being reported with the fax error code 
table. See “Fax error log codes” on 
page 2-28. Perform the suggested 
resolution for the error.
Did this fix the problem?Problem resolved. Go to step 15. 
						

							2-72Service Manual 7525xxxLexmark confidential until announce
15 Adjust the “Transmit Level” setting in the SE 
menu. press **411 to enter the SE menu, 
enter Modem settings, and select “Transmit 
Level”.
Test by adjusting the transmitted signal 
strength by decreasing/increasing the 
‘Transmit Level’ setting in steps of 1db. For 
example, if default value is -11 db, changing 
it to-12db will decrease the signal strength 
by 1db, and changing it to -10db will 
increase the signal strength by 1db. 
Recommended adjustment range is ±5 db 
(in 1db steps) from the default value.
Did this fix the problem? Stop. Problem resolved. Go to your second-level of 
support. See “Escalating a 
fax issue to second-level 
support” on page 2-75. Step Questions / actions Yes No 
						

							Diagnostic information2-73
Lexmark confidential until announce7525xxx
Fax reception service check
Step Questions / actions Yes No
1 Is the phone line properly connected to the 
modem card and the wall jack?Go to step 2. Go to step 3.
2 Properly connect the phone line to the 
modem card and wall jack.
Did this fix the problem?Problem resolved. Go to step 3.
3 Check for a dial tone. 
Is there a dial tone?Go to step 4. Go to step 6.
4 Use a telephone to test the phone line’s 
ability to send and receive calls.
Did the phone line work properly?Go to 7. Go to step 5.
5 Use a telephone handset to verify the phone 
line is free of static or external noise. 
Is the phone line noise-free?Go to step 7. Go to step 6.
6 Use the MFP on a properly functioning 
phone jack.
Did this fix the problem?Problem resolved. Go to step 7.
7 In , verify that the 
Enable Fax Receive setting is on.
Is the setting set to on?Go to step 9.  Go to step 8.
8 Set “Enable Fax Receive” to On.
Did this fix the problem?Problem resolved. Go to step 9. 
9 Is Distinctive Ring enabled? Go to step 11. Go to step 10.
10 Turn on Distinctive ring.
Did this fix the problem?Problem resolved. Go to step 11.
11 Is the phone line analog? Go to step 13. Go to step 12.
12 IS the VOIP server configured to support 
fax?Go to step13. Stop here. This is an issue 
with the VOIP provider.
13 Does the MFP have reception issues with 
only a certain remote device?Go to step 14. Go to step 15.
14 Verify communications with a different 
remote device.
Can the other device receive faxes?The issue is with the other 
device.Go to step 15.
15 Go to the Administrator menu. Enter the Fax 
settings - Analog Fax Settings submenu. 
Verify the Block No Name Fax user setting.
Is it enabled?Go to step 16. Go to step 17.
16 Disable Block No Name Fax user setting.
Did this fix the issue?Problem resolved. Go to step 17. 
						

							2-74Service Manual 7525xxxLexmark confidential until announce
17 Go to the Administrator menu. Enter the Fax 
settings - Analog Fax Settings submenu.
Verify the remote device number is not in the 
Banned Fax List user setting.
Is the remote device number in the banned 
fax list?Go to step18 Go to step 19.
18 Remove the remote number from the 
banned fax list.
Did this fix the problem?Problem resolved. Go to step 19.
19 Adjust the “Receive Threshold” setting in the 
SE menu. press **411 to enter the SE 
menu, enter Modem settings, and select 
“Receive Threshold”.
Test by adjusting the received signal level by 
decreasing/increasing the”Receive 
Threshold” setting in steps of 2db. For 
example, if default value is -43 db, changing 
it to -45db will decrease the received signal 
level by 2db, and changing it to -41db will 
increase the received signal level by 2db. 
Recommended adjustment range is 
between -33db and -48db (in 2db steps).
Did this fix the problem?Problem resolved Go to step 20.
20 press **411 to enter the SE Menu. Select 
“Print Logs”.
Print the T30 transmission/ job log. Check 
the error code being reported. See “Fax 
error log codes” on page 2-28. Perform 
the suggested resolution for the error.
Did this fix the problem?Problem resolved. Contact your second-level 
of support. See 
“Escalating a fax issue to 
second-level support” on 
page 2-75. Step Questions / actions Yes No 
						

							Diagnostic information2-75
Lexmark confidential until announce7525xxx
Escalating a fax issue to second-level support
Before contacting the second-level support, go to the SE menu on the MFP.and generate a Fax error file. This 
file contains machine settings information and debug information that will help second-level support determine 
the cause of a failure.
To generate the fax error file, perform the following steps:
1.In a Web browser, type http://MFP ip address/se. 
2.The MFP’s SE menu page will display. Click the “Dump Job History” link. The following displays:
3.Write down the type of connection, the type of error, and the job in which the error occurred.
4.In the Web browser address bar, type http://MFP ipaddress/se. 
5.Click Report a Fax Problem (A). The fax check list displays.
6.Fill in the requested information. This is where you will type in the information you retrieved in step 3. 
Second-level support can assist you if you have questions about the information requested on the page.
Note:  The fields requesting the code levels, model number, type of problem are auto-filled. If the information is 
not in the fields, it can be retrieved from the SE menu. The SE menu can be accessed by pressing **411 on the 
keypad or typing http://MFP ipaddress/se in a Web browser.
7.After all the requested information is entered into the Fax Checklist Web page, press the Submit button on 
the bottom of the page. A dialogue asking you to save the file will appear.
Note:  The file generated by the MFP is not automatically transmitted to second-level support. It is placed 
on the computer desktop.
8.Enter a name for the file, and indicate where you want to save the file.
9.press OK. The file appears on the desktop.
10.E-mail the file to second-level support. 
						

							2-76Service Manual 7525xxxLexmark confidential until announce
User operator panel, menus and messages
Understanding the operator panel
The printer operator panel has a four-line, back lit, grayscale display that can show both graphics and text. The 
Mode selection, job setup, Back, and Menu buttons are located to the left of the display, the navigation buttons 
are located below the display, and the start buttons, stop button, and numeric pad are located to the right of the 
display. In addition, there is a USB jack that enables printing of certain graphics formats as well as enabling Pict 
Bridge functionality.
Operator panel buttons
Button or indicator Function
Select press Select ( ) to initiate action on a menu item.
Navigation buttons press   or   to scroll through menu lists.
Indicator light Indicates the printer status:
Back  Returns the display to the previous screen.
Menu  Opens the menu index. 
Start / Color press to start a job in color.
Shortcuts
3DEF
6MNO
9WXYZ
#
2ABC
5JKL
8TUV
0 1
@!.
4
PQRS7
*
FaxRedial/Pause
Resolution
Options
Hook
Color
Select
Start
Black
Stop/Cancel Menu
Back CopyCopies
Scale
Options Content
Darkness
Duplex/2-SidedText
Text/Photo
PhotoCopy
Scan/Email
Fax
Mode
selection
Job
setup
Menu
Back
Navigation
Black
& whiteStart
color
StopFax
Pictbridge/USB
Alphanumeric
Status Indicates
Off The power is off.
Blinking green The printer is warming up, processing data, or printing a job.
Solid green The printer is on, but idle.
Solid red Operator intervention is needed.