Lexmark X264 Service Manual

							Diagnostics information 2-27
7013-XXX
Cooling fan service check 
Cover interlock switch service check 
Note:  Make sure a print cartridge assembly is installed and the cover closes all the way, engaging the cover 
open switch lever. 
 
LVPS/HVPS
Verify main power to controller board
With the printer off, unplug the LVPS/HVPS cable at J22 on the controller board. Verify 
grounds on pins 10, 12, 14, 16 and 18 for both the cable and the controller board. If any of 
these grounds are incorrect, then check the cable for continuity. If the cable fails continuity, 
then call the next level of support.
Turn the printer on with the cable still unplugged, and verify the following on the cable 
(controller board will not be powered):
If any of the voltages are incorrect, then replace the LVPS/HVPS. See “Dead machine service check” on page 2-28. 
FRUAction
Cooling fanMake sure the fan cable plug is properly seated at J13 (controller board). 
Turn the printer on. Within a few seconds, the controller board assembly should apply 
+24 V dc to pin 2. 
• If voltage is not present, then check or replace the controller board. See “Controller board removal” on page 4-13.
• If voltage is present, then check pin 1 for 24 V dc as well. If it is close to 24 V dc while 
the fan is still idle, then replace the fan. See “Fan removal” on page 4-22.
FRUAction
Cover interlock switchDisconnect the cover interlock cable from the controller board at J6. 
With the printer turned off:
1. Verify continuity between cable pin 1 and pin 2 with the door closed and discontinuity 
with the door open. 
2. Verify continuity between cable pin 1 and pin 3 with the door open and discontinuity with 
the door closed. 
3. Verify discontinuity between cable pins 2 and 3 whether the door is open or closed. 
• If any fail, then replace the cover interlock switch. 
• If both pass continuity, then turn the printer on, and measure +5 V dc on pin 2 at J6 on 
the controller board. 
• Verify pin 3 at J6 is ground.
• If voltage or ground is not present, then see “Controller board service check” on page 2-26 for more information. 
Controller board service check (continued)
FRU Action
Pins Voltage
6, 17, 19 +24 V dc
1, 3-5, 11, 13, 
15+5 V dc 
						

							2-28  Service Manual 7013-XXX
Dead machine service check
CAUTION: Check the AC line voltage. The voltage should be within the following limits:
•  100 V ac (volts alternating current)-127 V ac for the 110 V printer
•  200 V ac-240 V ac for the 220 V printer
FRU Action
LVPS/HVPSUnplug the printer. Remove the LVPS/HVPS, and check the fuses for continuity. 
• If open, then replace the LVPS/HVPS. 
• If not open, then check the switch continuity across its conductors with the switch on. 
Turn the switch off. Plug the AC line into the LVPS/HVPS and switch unit on.
Note: Voltages are exposed at several places on the board. Do these verifications, and 
then unplug the AC cord from the power supply:
• If voltages are not correct, then replace the LVPS/HVPS.
• If voltages are correct, then check the controller board. See “Controller board service 
check” on page 2-26.
Pins Voltage
CN201-6, 17, 
19+24 V dc
CN201-10, 12, 
14, 16, 18Ground
CN201-1,3, 5, 
11,13, 15+5 V dc 
						

							Diagnostics information 2-29
7013-XXX
Fuser service check 
When toner is partially fused to the media, it is usually caused by low fuser temperature.
The line voltage to the printer must be within the following limits:
•100 V ac-127 V ac for the 110 V model printer
•200 V ac-240 V ac for the 220 V model printer
This printer uses a belt fuser and therefore does not have a lamp. 
 
LVPS/HVPS service check
Fuser service check
FRU Action
Fuser power cable 
LVPS/HVPS  
FuserUnplug the printer, and disconnect the fuser cable plug from the LVPS/HVPS board 
connector at CN102.
Check for continuity across the fuser by checking across the connector pins. 
• If there is continuity, then check the LVPS/HVPS. See “LVPS/HVPS service check” 
on page 2-29.
• If there is no continuity, then disconnect the fuser power cable at both ends and check 
each conductor for continuity. Replace cable if necessary.
• If the cable tests good, then replace the fuser.
Reconnect the cables, turn the printer on, and at &12, check for approximately +5 V dc on 
pin 1 and ground on pin 2. If line voltage is incorrect on pin 1, then see “Controller board 
service check” on page 2-26 for more information. 
 
Fuser Disconnect the thermistor cable from J11 on the controller board. 
Measure the resistance across the ends of the thermistor cable. 
Replace the fuser assembly if the resistance is lower than 1K ohm or shorted.
Note: Resistance measures approximately 400K ohms when cool and 1K ohms hot.
FRUAction
LVPS/HVPS
LVPS portion of board 
Fuses that open typically indicate a faulty LVPS/HVPS.
Disconnect the power cable, and open the LVPS/HVPS enough to test the switch. The 
switch will show continuity across the conductors with a meter when the switch is on. If the 
switch is good, then see 
“Dead machine service check” on page 2-28 for more diagnostics.
HVPS portion of board 
Problems with the HVPS are exhibited in the print quality. See “Networking service check” on page 2-34 for more information. 
						

							2-30  Service Manual 7013-XXX
Main motor service check 
Media feed clutch service check
FRUAction
Main motor gear drive Main motor cable LVPS/HVPS Controller board 
Warning: Do not 
replace the operator 
panel and controller 
board at the same 
time. Each card 
contains the printer 
settings. When either 
of these cards is new, 
it obtains the settings 
from the other card. 
Settings are lost when 
both are new and 
replaced at the same 
time.
Turn off the printer, and unplug the main motor cable at J19. Turn on the printer, and check 
for the following voltages at J19:
Verify ground at pin 5 for both the card and cable. 
• If these voltages are correct, then check the main motor cable for continuity. 
- Remove the left side cover to access the connector on the motor.
- If continuity exists on each wire, then replace the main motor gear drive which 
includes the motor.
- If continuity does not exist on one or more of the wires, then call the next level of 
support.
• If these voltages are not correct, then see “Controller board connector pin values” on page 5-3, or replace the controller board. See “Controller board removal” on page 4-13.
StepAction and questionsYesNo
1Clear the paper path of all sheets of 
paper. Turn on the printer. Open the front 
door of the printer. 
Is the paper overlapping with no space 
between the trailing edge of the first 
sheet and leading edge of the second?
Go to step 3.Go to step 2.
2Check the paper path sensors for any dirt, 
dust or paper that might be obstructing 
the sensors.
Does this solve the problem?
Problem resolvedGo to step 3.
3Replace the media feed clutch. See “Media feed clutch removal” on page 4-51. 
Does this solve the problem?
Problem resolvedContact your next level of 
support.
J19 pins Voltages
Pins 1-4, 6 Approx. 5 V dc
Pins 7-9 18 V dc-24 V dc 
						

							Diagnostics information 2-31
7013-XXX
Operator panel service check
Inspect the operator panel cable for damage. Make sure the cable is plugged in securely. Run POST, and check 
each light for proper operation. See “Power–On Self Test (POST) sequence” on page 2-1. 
Paper feed service checks
Paper jam error indication during POST 
Media picks but stops halfway through the printer 
LCD Operator panel service check 
FRU Action
Operator panel (LCD) 
Controller board 
Warning: Do not 
replace the operator 
panel and controller 
board at the same 
time. Each card 
contains the printer 
settings. When either 
of these cards is new, 
it obtains the settings 
from the other card. 
Settings are lost when 
both are new and 
replaced at the same 
time.Lights
If the LCD does not come on, then open the controller board cage and locate the operator 
panel connector at J14. Make sure the cable is properly connected to the controller board 
and the controller board has input voltage to it.
With the printer on, verify the following without disconnecting the cable:
• Pins 1, 3, 5, and 6: 3.3 v
•Pin 2: 5 v
• Pins 4 and 7: GND
If these are approximately correct and the operator panel is not functioning, then replace 
the operator panel.
If any are incorrect, then see “Controller board service check” on page 2-26.
Buttons
If the buttons do not respond, then replace the operator panel. There is no test or repair for 
the faulty switches on the operator panel.
FRUAction
Fuser (exit sensor) If the exit sensor flag, which is visible at the back of the fuser, is in any position other than 
vertical, then the printer will display a paper jam. Make sure the flag is operating freely. 
Replace the fuser if the sensor is damaged.
Input/duplex sensor Manual feed sensorMake sure the input paper feed sensors are working properly. A stuck or incorrectly installed 
sensor causes a paper jam indication.
FRUAction
Input/duplex sensors (under print cartridge assembly)  Input sensor (manual)
Make sure the input sensors are working properly. 
Check for a broken or stuck flag on the input sensors. Clear anything that keeps 
the flags from rotating freely.
Make sure the cables are seated on the controller board at J30 (input/duplex 
sensor) and J26 (manual input). 
Check for +5 V dc on pin 2 and 5 at J30 (input/duplex sensors) and pin 2 at J26 
(Input sensor). Voltages on pins 1 and 4 at J30 pin 1 at &26 should change as the 
flags intersect with the sensor.
• If correct, then replace the input paper feed sensor.
• If these voltages are not correct, then replace the controller board. 
• Check the pick tires. Clean or replace as necessary. 
						

							2-32  Service Manual 7013-XXX
Media never picks 
Media occasionally mispicks or picks multiple sheets at once 
Media skews
FRUAction
Paper feed (pick tires) tray 1 Paper feed (pick tires) tray 2 Media drive ASM Media feed clutch ASM Manual feed clutch ASM P/U and manual feed solenoid ACM drive shaft
Open the left cover, and verify that the solenoids and clutches are functioning 
when an attempt is made to feed the media. 
Make sure the rubber tires on the ACM are installed and clean. 
Replace the tires, ACM drive, clutch assemblies, solenoids, or drive shaft as 
necessary.
FRUAction
Tray 1  Tray 2 (option)Check tray for media catch points. 
If the sheet being fed stops momentarily, then the ACM applies additional vertical force, 
causing additional sheets to feed. 
Do not mix media types in one tray. 
Paper pick tires (Tray 1 or tray 2)Check the tires in the ACM assembly for signs of wear or damage.
Replace the tires as necessary.
ACM clutch Manual feed clutch Media feed clutch ASM 
(tray 1 only) Manual feed clutch 
solenoid
Open left cover, and observe the solenoid and clutch actions at the ACM and manual 
feed shafts as a print job is attempted. 
Replace the faulty part. 
Controller board P/U and manual feed 
solenoid ASMDisconnect the solenoid cable at J27 on the controller board and measure the resistance 
across cable pins 1 and 2. 
• The resistance should be approximately 70 ohms. 
• If it is not, then replace the solenoid. 
• If the resistance is approximately 70 ohms, then check the controller board. Pin 1 at 
J27 should be +24 V dc. See “Controller board service check” on page 2-26 for more information. 
Replace controller board as necessary. 
FRUAction
Paper feed (pick tires) tray 1 Paper feed (pick tires) tray 2 Tray 1  Tray 2 (option)
Check tires for debris. If tires are new, then try reversing each on its hub.
Check side guides on Tray 1 and Tray 2. Guides set for a full stack of media may 
be too wide when the stack is short. 
						

							Diagnostics information 2-33
7013-XXX
Media “trees,” wrinkles, stacks poorly, or curls 
USB port service check
1.Perform a print test to make sure the printer prints correctly. Verify that the indicator light is on, then print 
the menu settings by selecting Print Menu under Utilities. 
2.Be sure the printer USB cable is designed for bidirectional printing.
3.Be sure the user’s application is set up correctly. 
4.If the internal print test page prints correctly, the user’s application/printer driver is set up correctly, and the 
correct USB cable is installed, but the printer still fails to print on command from the host computer, then 
replace the controller board.
5.Check the USB cable for continuity.
FRUAction
Fuser This problem is most likely due to a worn backup roll. It causes the printer to run hotter than 
required for the media being printed. Excessive heat can cause media treeing problems, 
poor stacking, or curl. 
Print the menu sheet found under Utilities.
Look at the media settings. Some, such as card stock or rough texture, may require a 
higher fuser temperature, which leads to more of these problems (except stacking) in plain 
paper.
• Change settings using the printer driver.
• Use the local printer setup utility (included on the CD) to change the NVRAM 
settings.
Try a different ream of paper. Moist media has a higher tendency to crease (treeing) and 
curl. 
						

							2-34  Service Manual 7013-XXX
Networking service check
Note:  Before starting this service check, print out the network setup page. This page is found under Menu - 
Reports - Network Setup. Consult the network administrator to verify that the physical and wireless network 
settings displayed on the network settings page for the device are properly configured. If a wireless network is 
used, verify that the printer is in range of the host computer or wireless access point, and there is no electronic 
interference. Have the network administrator verify that the device is using the correct SSID, and wireless 
security protocols. For more network troubleshooting information, consult the Lexmark Network Setup Guide.
StepQuestions / actionsYesNo
1If the device is physically connected to the 
network, verify that the ethernet cable is 
properly connected on both ends. 
Is the cable properly connected?
Go to step 3.
If the network is wireless, 
got to step 3.
Go to step 2.
2Connect the ethernet cable.
Did this fix the problem?
Problem resolvedGo to step 3.
3Check the printer’s online status under Printers 
and Faxes on the host computer. Delete all 
print jobs in the print queue.
Is the printer online and in a Ready state.
Go to step 5.Go to step 4.
4Change the printer status to online.
Did this fix the issue?
Problem resolved.Go to step 5.
5Does the IP address displayed on the network 
settings page match the IP address in the port 
of the drivers using the printer?Go to step 10.Go to step 6.
6Does the LAN use DHCP?
Note: A printer should use a static IP 
address on a network.
Go to step 7.Go to step 9.
7Are the first two segments if the IP address 
169.254?Go to step 8.Go to step 9
8POR the printer. 
Is the problem resolved
Problem resolvedGo to step 10.
9Reset the address on the printer to match the 
IP address on the driver.
Did this resolve the issue?
Problem fixed.Go to step 10.
10Have the network admin verify that the printer 
and PC’s IP address have identical subnet 
addresses. 
Are the subnet addresses the same?
Go to step 12.Go to step 11.
11Using the subnet address supplied by the 
network admin, assign a unique IP address to 
the printer. 
Note: The printer IP address should match 
the IP address on the printer driver.
Did this fix the problem?
Problem resolved.Go to step 12.
12Is the device physically connected (ethernet 
cable) to the network?Go to step 13.Go to step15. 
						

							Diagnostics information 2-35
7013-XXX
13Try using a different ethernet cable.
Did this remedy the situation?
Problem resolvedGo to step 14.
14Have the network administrator check the 
network drop for activity.
Is the drop functioning properly?
Replace the controller 
board. See “Controller board removal” on page 4-13.
Contact the network 
administrator.
15Is the printer on the same wireless network as 
the other devices?Go to step 17.Go to step 16.
16Assign the correct wireless network to the 
printer.
Did this fix the problem?
Problem resolvedGo to step 17.
17Are the other devices on the wireless network 
communicating properly?Go to step 18.Contact the network 
administrator.
18Verify that the wireless card is properly seated 
on the controller board. 
Is the wireless card seated correctly?
Go to step 20.Go to step 19.
19Properly reseat the wireless card.
Did this fix the problem?
Problem resolved.Go to step 20.
20Is the antenna damaged?Go to step 22.Go to step 21.
21Replace the antenna.
Did this fix the problem?
Problem resolvedGo to step 22.
22Verify that the antenna is properly connected 
to the wireless card. 
Is it connected correctly?
Go to step 24.Go to step 23.
23Properly connect the antenna. 
Did this fix the problem?
Problem resolvedGo to step 24.
24Check pin 6 for +3.3V, and Pin 5 for +5V. on 
connector J3 of the controller board. Pin 1 and 
4 are GND. 
Are the voltages and GNDs correct?
Replace the wireless card. 
See “Wireless card removal” on page 4-84.
Replace the controller 
board. See “Controller board removal” on page 4-13.
Step Questions / actions Yes No 
						

							2-36  Service Manual 7013-XXX
Print quality service checks
Note:  Ensure the cover closes tightly. A gap in the opening may allow light to expose the photoconductor, 
resulting in a ‘dirty’ print. Extreme environmental conditions, temperatures, and humidity will affect the print 
quality.
Using print quality test pages 
To help isolate print quality problems, like streaking, print test pages using the print quality test pages. To print 
the print quality test pages:
1.Enter Configuration Menu.
a.Turn off the printer.
b.Turn on the printer while pressing and holding  and .
c.Hold  and  down until the first row of dots displays, and then release. 
d.The message CONFIG MENU displays.
e.Press  to Prt Quality Pgs.
f.Pressto print the pages.  
Four pages print to help evaluate print quality. The first page has various fonts and a graphic, the 
second page is gray with graphics, the third page is black, and the last page is blank. 
2.Use the test pages to isolate problems such as light or toner streaks. See “POST symptom table” on 
page 2-23 for solutions to these problems.
3.Press  to Exit Config Menu, and press .
To exit configuration, turn the printer off.
Note:  Refer to the print defects guide at the end of the manual for repeating defects.
Blank page 
FRUAction
Toner cartridge (not a 
FRU)Remove the toner cartridge, and gently shake it to evenly distribute the toner.
Check for cartridge damage.
Printhead  LVPS/HVPS  Controller board 
Blank pages can be caused by a defective printhead assembly,  LVPS/HVPS, or controller board. 
• Printhead errors typically result in printer service errors unless there is blockage of the 
beam or dust on the lens. Check the lens and opening for blockage.
• Blank pages typically are caused by the PC roll not being properly charged. Try a 
different PC kit.
• With the cartridge out, check the spring loaded contacts on the right side for free motion. 
None should be ground except for #4 contact from the front.
 Unplug the printer, and check the cable continuity between the LVPS/HVPS connector 
marked OPC (at CN202) and the corresponding wire form (spring) found about 14 mm 
above and to the right of the transfer roll gear. 
• If there is not continuity, then call the next level of service. 
Try a different toner cartridge and PC kit. 
• If those fail, then replace the LVPS/HVPS, controller board, or the printhead in that 
order.
Also, see “Solving print quality problems” on page 2-40.