Lexmark C 950 Service Manual

							Diagnostic information 2-1
  5058-030
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2.  Diagnostic information
Start
To determine the corrective action necessary to repair a printer, look for the following information:
•Does the POR stop? Check “POR (Power-On Reset) sequence” on page 2-2.
•If you have an error message or user message, check the following:
–“Error codes and messages” on page 2-3
–“User status and attendance messages” on page 2-3
–“Paper jam error codes” on page 2-11
–“1xx service error codes” on page 2-12
–“2xx service error codes” on page 2-20
–“3xx service errors” on page 2-24
–“8xx service error codes” on page 2-31
–“9xx service error codes” on page 2-31
–“Service checks” on page 2-34
•For information regarding electrical connections, see “Locations” on page 5-1.
•Additional information can be found at the following locations:
–“Understanding the operator panel” on page 3-1 
–“Printer theory of operations” on page 3-52 
–“Finisher theory of operations” on page 3-71
–“TTM theory of operations” on page 3-103
–“3TM theory of operations” on page 3-110
–“High capacity feeder theory of operations” on page 3-122
–“High capacity feeder theory of operations” on page 3-122
Note:  There may be printer error messages that are not contained in this service manual. Call your next level of 
support for assistance.
CAUTION
Unplug 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.  
						

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POR (Power-On Reset) sequence
The following is an example of the events that occur during the POR sequence:
1.Turn the machine on.
2.The Lexmark splash screen appears with a progress bar in the center until the code is loaded.
3.The scanner exposure lamp flashes several times.
4.The fuser cooling fan turns on.
5.The fuser unit assembly lamps turn on.
6.The RIP card assembly cooling fan turns on.
7.Operator panel LED becomes solid.
8.The transport motor turns on.
The following is an example of the screen that appears after the code is loaded. 
						

							Diagnostic information 2-3
  5058-030
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Error codes and messages
User status and attendance messages
User primary messageExplanation
Adjusting colorWait for the process to complete.
An error has occured 
with the Flash Drive. 
Please remove and re-
insert the drive.Try one or more of the following:
• Remove and reinsert the flash drive.
• If the error message remains, the flash memory may be defective and require 
replacing.
Change [paper source] 
to [custom type name]Try one or more of the following:
• Touch Use current [paper source] to ignore the message and print from the 
selected tray.
• Load the correct paper size and type in the tray, verify the paper size and type 
settings are specified in the printer control panel Paper menu, and then touch 
Paper changed, continue.
• Touch Cancel job to cancel the print job.
Change [paper source] 
to [custom type name] 
load [orientation]Try one or more of the following
• Touch Use current [paper source] to ignore the message and print from the 
selected tray.
• Load the correct paper size and type in the tray, verify the paper size and type 
settings are specified in the printer control panel Paper menu, and then touch 
Paper changed, continue.
• Touch Cancel job to cancel the print job.
Change [paper source] 
to [custom string]Try one or more of the following:
• Touch Use current [paper source] to ignore the message and print from the 
selected tray.
• Load the correct paper size and type in the tray, verify the paper size and type 
settings are specified in the printer control panel Paper menu, and then touch 
Paper changed, continue.
• Touch Cancel job to cancel the print job.
Change [paper source] 
to [custom string] load 
[orientation]Try one or more of the following:
• Touch Use current [paper source] to ignore the message and print from the 
selected tray.
• Load the correct paper size and type in the tray, verify the paper size and type 
settings are specified in the printer control panel Paper menu, and then touch 
Paper changed, continue.
• Touch Cancel job to cancel the print job.
Change [paper source] 
to [paper size]Try one or more of the following:
• Touch Use current [paper source] to ignore the message and print from the 
selected tray.
• Load the correct paper size and type in the tray, verify the paper size and type 
settings are specified in the printer control panel Paper menu, and then touch 
Paper changed, continue.
• Touch Cancel job to cancel the print job.
Change [paper source] 
to [paper size] load 
[orientation]Try one or more of the following:
• Touch Use current [paper source] to ignore the message and print from the 
selected tray.
• Load the correct paper size and type in the tray, verify the paper size and type 
settings are specified in the printer control panel Paper menu, and then touch 
Paper changed, continue.
• Touch Cancel job to cancel the print job. 
						

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Change [paper source] 
to [paper size] [paper 
type]Try one or more of the following:
• Touch Use current [paper source] to ignore the message and print from the 
selected tray.
• Load the correct paper size and type in the tray, verify the paper size and type 
settings are specified in the printer control panel Paper menu, and then touch 
Paper changed, continue.
• Touch Cancel job to cancel the print job.
Change [paper source] 
to [paper size] [paper 
type] load [orientation]Try one or more of the following:
• Touch Use current [paper source] to ignore the message and print from the 
selected tray.
• Load the correct paper size and type in the tray, verify the paper size and type 
settings are specified in the printer control panel Paper menu, and then touch 
Paper changed, continue.
• Touch Cancel job to cancel the print job.
Check [src] orientation 
or guidesTry one or more of the following:
• Move the paper guides in the tray to the correct positions for the paper size 
loaded.
• Make sure the paper size setting matches the paper loaded in the tray:
1. From the printer control panel Paper menu, check the Paper Size setting.
2. Before sending the print job, specify the correct size setting:
- For Windows users, specify the paper size from Print Properties.
- For Macintosh users, specify the paper size from the Page Setup dialog.
Close cover [x]Close the specified cover to clear the message.
Close door [x]Close the specified door.
Disk corruptedThe printer attempted a hard disk recovery on a corrupted hard disk, and the hard 
disk cannot be repaired. The hard disk must be reformatted.
Touch Format disk to reformat the printer hard disk and clear the message.
Note: Formatting deletes all the files stored on the printer hard disk.
Empty the hole punch 
box1. Empty the hole punch box.
For instructions on emptying the hole punch box, from the printer control panel 
touch More Information.
2. Reinsert the hole punch box into the finisher, and then touch Continue to clear 
the message.
Error reading USB 
drive. Remove USB.An unsupported USB device has been inserted. Remove the USB device, and then 
install a supported one.
Insert staple cartridgeTry one or more of the following:
• Install a staple cartridge.
• Touch Continue to clear the message and print without using the staple 
finisher.
Insert Tray [x]Insert the specified tray into the printer.
Insert the hole punch 
boxInsert the hole punch box into the finisher, and then touch Continue to clear the 
message.
Install Tray [x]Try one or more of the following:
• Install the specified tray:
1.Turn the printer off.
2.Unplug the power cord from the wall outlet.
3.Install the specified tray.
4.Connect the power cord to a properly grounded electrical outlet.
5.Turn the printer back on.
• Cancel the print job.
User status and attendance messages
User primary message Explanation 
						

							Diagnostic information 2-5
  5058-030
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Install bin [x]Try one or more of the following:
• Install the specified bin:
1.Turn the printer off.
2.Unplug the power cord from the wall outlet.
3.Install the specified bin.
4.Connect the power cord to a properly grounded electrical outlet.
5.Turn the printer back on.
• Cancel the print job.
Load [src] with [custom 
type name]Try one or more of the following:
• Load the specified paper in the tray or feeder.
• Touch Paper loaded, continue to clear the message and continue printing.
If the printer finds a tray that has the correct paper type and size, it feeds from 
that tray. If the printer cannot find a tray with the correct paper type and size, it 
prints from the default paper source.
• Cancel the print job.
Load [src] with [custom 
string]Try one or more of the following:
• Load the specified paper in the tray or feeder.
• Touch Paper loaded, continue to clear the message and continue printing.
If the printer finds a tray that has the correct paper type and size, it feeds from 
that tray. If the printer cannot find a tray with the correct paper type and size, it 
prints from the default paper source.
• Cancel the print job.
Load [src] with [size]Try one or more of the following:
• Load the specified paper in the tray or feeder.
• Touch Paper loaded, continue to clear the message and continue printing.
If the printer finds a tray that has the correct paper type and size, it feeds from 
that tray. If the printer cannot find a tray with the correct paper type and size, it 
feeds from the default paper source.
• Cancel the print job.
Load [src] with [type] 
[size]Try one or more of the following:
• Load the specified paper in the tray or feeder.
• Touch Paper loaded, continue to clear the message and continue printing.
If the printer finds a tray that has the correct paper type and size, it feeds from 
that tray. If the printer cannot find a tray with the correct paper type and size, it 
feeds from the default paper source.
• Cancel the print job.
Load Manual Feeder 
with [custom type name]Try one or more of the following:
• Load the specified paper in the multipurpose feeder.
• Touch Prompt each page, paper loaded to clear the message and continue 
printing.
If the printer finds a tray that has the correct paper type and size, then it feeds 
from that tray. If the printer cannot find a tray with the correct paper type and 
size, then it prints from the default paper source.
• Cancel the print job.
Load Manual Feeder 
with [custom string]Try one or more of the following:
• Load the specified paper in the multipurpose feeder.
• Touch Prompt each page, paper loaded to clear the message and continue 
printing.
If the printer finds a tray that has the correct paper type and size, then it feeds 
from that tray If the printer cannot find a tray with the correct paper type and 
size, then it prints from the default paper source.
• Cancel the print job.
User status and attendance messages
User primary message Explanation 
						

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Load Manual Feeder 
with [size]Try one or more of the following:
• Load the specified paper in the multipurpose feeder.
• Touch Prompt each page, paper loaded to clear the message and continue 
printing.
If the printer finds a tray that has the correct paper type and size, then it feeds 
from that tray. If the printer cannot find a tray with the correct paper type and 
size, then it prints from the default paper source.
• Cancel the print job.
Load Manual Feeder 
with [paper type] [paper 
size]Try one or more of the following:
• Load the specified paper in the multipurpose feeder.
• Touch Prompt each page, paper loaded to clear the message and continue 
printing.
If the printer finds a tray that has the correct paper type and size, then it feeds 
from that tray. If the printer cannot find a tray with the correct paper type and 
size, then it prints from the default paper source.
• Cancel the print job.
Load staplesTry one or more of the following:
• Replace the specified staple cartridge in the finisher.
• Touch Continue to clear the message and continue printing.
• Touch Cancel job to cancel the print job.
Manual feeder expects 
[paper size]. Check 
[paper source] guidesTry one or more of the following:
• Load the specified paper size in the manual feeder.
• Physically adjust [paper source] guides to a recognized paper size.
• Touch Continue to clear the message and continue printing.
If the printer finds a tray that has the correct paper type and size, then it feeds 
from that tray. If the printer cannot find a tray with the correct paper type and 
size, then it prints from the default source.
Power off, wait 2 
seconds, power onTurn the printer off and wait for 2 seconds before turning the printer back on.
Print quota exceeded. 
Print job canceled.The print job has been cancelled because the print quota has been exceeded. 
Contact your system support person.
Print quota exceeded. 
Print job incomplete.The print job did not complete because the print quota has been exceeded. 
Contact your system support person.
Remove paper from 
standard output binRemove the stack of paper from the standard exit bin.
Remove paper from bin 
[x]Remove the paper from the specified bin. The printer automatically senses paper 
removal and resumes printing.
If removing the paper does not clear the message, then touch Continue.
Remove paper from 
[linked bin set name]Remove the paper from the specified bin. The printer automatically senses paper 
removal and resumes printing.
If removing the paper does not clear the message, then touch Continue.
Remove paper from all 
binsRemove the paper from all of the bins. The printer automatically senses paper 
removal and resumes printing.
If removing the paper does not clear the message, then touch Continue.
Restore Held Jobs?Try one or more of the following:
• Touch Continue to restore all held jobs stored on the printer hard disk.
• Touch Do not restore if you do not want any print jobs to be restored.
Some held jobs were 
not restoredTouch Continue to delete the specified job.
Note: Held jobs that are not restored stay on the hard disk and are inaccessible.
Unsupported diskAn unsupported printer hard disk has been installed. Remove the unsupported 
device, and then install a supported one.
User status and attendance messages
User primary message Explanation 
						

							Diagnostic information 2-7
  5058-030
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31.xx Missing or 
defective [color] 
cartridgeTry one or more of the following:
1. Remove and reinstall the specified print cartridge.
For instructions on removing a print cartridge, touch More Information.
2. Touch Continue to clear the message.
Note: If the message is not cleared, then replace the defective print cartridge.
32.xx [color] cartridge 
part number 
unsupported by deviceRemove the unsupported toner cartridge, and then install a supported one.
34 Incorrect paper size, 
check [paper source]Try one or more of the following:
• Load the appropriate paper or specialty media in the proper tray.
• Confirm that the wheel on Tray 1 is set to the paper size loaded in the tray. 
Make sure the paper size matches the document you are trying to print.
• Touch Continue to clear the message and print using a different tray.
• Check the tray length and width guides and make sure the paper is loaded 
properly in the tray.
• Make sure the correct paper size and type are specified on the Print Properties 
or Print dialog settings.
• Check that the paper size is correctly set. For example, if the MP Feeder Size 
is set to Universal, make sure the paper is large enough for the data being 
printed.
• Cancel the print job.
34 Incorrect paper type, 
check [paper source]Try one or more of the following:
• Load the appropriate paper or specialty media in the proper tray.
• Confirm that the wheel on Tray 1 is set to the paper type loaded in the tray. 
Make sure the paper type matches the document you are trying to print.
• Touch Continue to clear the message and print using a different tray.
• Check the tray length and width guides and make sure the paper is loaded 
properly in the tray.
• Make sure the correct paper size and type are specified on the Print Properties 
or Print dialog settings.
• Check that the paper type is correctly set. For example, if the MP Feeder Type 
is set to Universal, then make sure the paper is large enough for the data being 
printed.
• Cancel the print job.
35 Insufficient memory 
to support Resource 
Save featureTry one or more of the following:
• Touch Continue to disable Resource Save and continue printing.
• To enable Resource Save after receiving this message, make sure the link 
buffers are set to Auto, and then exit the menus to activate the link buffer 
changes. When Ready appears, enable Resource Save.
• Install additional memory.
36 Printer service 
requiredTouch Continue to clear the message or contact customer support.
37 Insufficient memory 
to collate jobTry one or more of the following:
• Touch Continue to print the portion of the job already stored and begin 
collating the rest of the print job.
• Cancel the current print job.
37 Insufficient memory 
for Flash Memory 
Defragment operationTry one or more of the following:
• Touch Continue to stop the defragment operation and continue printing.
• Delete fonts, macros, and other data in printer memory.
• Install additional printer memory.
37 Insufficient memory, 
some Held Jobs were 
deletedThe printer deleted some held jobs in order to process current jobs.
Touch Continue to clear the message.
User status and attendance messages
User primary message Explanation 
						

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38 Memory fullTry one or more of the following:
• Touch Cancel job to clear the message.
• Install additional printer memory.
39 Complex page, 
some data may not 
have printedTry one or more of the following:
• Touch Continue to clear the message and continue printing.
• Cancel the current print job.
• Install additional printer memory.
40 [color] invalid refill, 
change cartridgeReplace the specified cartridge to continue printing.
50 PPDS font errorTry one or more of the following:
• Touch Continue to clear the message and continue printing.
• The printer cannot find a requested font. From the PPDS menu, select Best Fit, 
and then select On. The printer will find a similar font and reformat the affected 
text.
• Cancel the current print job.
51 Defective flash 
detectedTry one or more of the following:
• Touch Continue to clear the message and continue printing.
• Cancel the current print job.
52 Not enough free 
space in flash memory 
for resourcesTry one or more of the following:
• Touch Continue to clear the message and continue printing.
Downloaded fonts and macros not previously stored in flash memory are 
deleted.
• Delete fonts, macros, and other data stored in flash memory.
• Upgrade to a larger capacity flash memory card.
53 Unformatted flash 
detectedTry one or more of the following:
• Touch Continue to stop the defragment operation and continue printing.
• Format the flash memory. If the error message remains, the flash memory may 
be defective and require replacing.
54 Network [x] software 
errorTry one or more of the following:
• Touch Continue to continue printing.
• Turn the printer off, wait for about 10 seconds, and then turn the printer back 
on.
• Upgrade (flash) the network firmware in the printer.
54 Serial option [x] errorTry one or more of the following:
• Check that the serial cable is properly connected and is the correct one for the 
serial port.
• Check that the serial interface parameters (protocol, baud, parity, and data bits) 
are set correctly on the printer and host computer.
• Touch Continue to continue printing.
• Turn the printer power off and then back on to reset the printer.
54 Standard network 
software errorTry one or more of the following:
• Touch Continue to continue printing.
• Turn the printer off and then back on to reset the printer.
• Upgrade (flash) the network firmware in the printer or print server.
55 Unsupported option 
in slot [x]1. Turn the printer off.
2. Unplug the power cord from the wall outlet.
3. Remove the unsupported option card from the printer system board, and then 
replace it with a supported card.
4. Connect the power cord to a properly grounded electrical outlet.
5. Turn the printer back on.
User status and attendance messages
User primary message Explanation 
						

							Diagnostic information 2-9
  5058-030
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56 Parallel port [x] 
disabledTry one or more of the following:
• Touch Continue to clear the message.
The printer discards any data received through the parallel port.
• Make sure the Parallel Buffer menu item is not set to Disabled.
56 Serial port [x] 
disabledTry one or more of the following:
• Touch Continue to clear the message.
The printer discards any data received through the serial port.
• Make sure the Serial Buffer menu is not set to Disabled.
56 Standard USB port 
disabledTry one or more of the following:
• Touch Continue to clear the message.
The printer discards any data received through the USB port.
• Make sure the USB Buffer menu item is not set to Disabled.
56 Standard parallel 
port disabledTry one or more of the following:
• Touch Continue to clear the message.
The printer discards any data received through the parallel port.
• Make sure the Parallel Buffer menu item is not set to Disabled.
56 USB port [x] disabledTry one or more of the following:
• Touch Continue to clear the message.
The printer discards any data received through the USB port.
• Make sure the USB Buffer menu is not set to Disabled.
57 Configuration 
change, some held jobs 
were not restoredSomething has changed in the printer to invalidate the held jobs. Possible changes 
include:
• The printer firmware has been updated.
• Paper input options needed for the print job were removed.
• The print job was created using data from a device in the USB port and the 
device is no longer in the USB port.
• The printer hard disk contains print jobs that were stored while installed in a 
different printer model.
Touch Continue to clear the message.
58 Too many disks 
installed1. Turn the printer off.
2. Unplug the power cord from the wall outlet.
3. Remove the excess disks.
4. Connect the power cord to a properly grounded electrical outlet.
5. Turn the printer back on.
58 Too many flash 
options installed1. Turn the printer off.
2. Unplug the power cord from the wall outlet.
3. Remove the excess flash memory.
4. Connect the power cord to a properly grounded outlet.
5. Turn the printer back on.
58 Too many trays 
attached1. Turn the printer off.
2. Unplug the power cord from the wall outlet.
3. Remove the additional trays.
4. Connect the power cord to a properly grounded outlet.
5. Turn the printer back on.
59 Incompatible tray [x]Try one or more of the following:
• Remove the specified tray.
• Touch Continue to clear the message and continue printing without using the 
specified tray.
User status and attendance messages
User primary message Explanation 
						

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61 Remove defective 
diskTry one or more of the following:
• Touch Continue to clear the message and continue printing.
• Install a different printer hard disk before performing any operations that require 
a printer hard disk.
62 Disk fullTry one or more of the following:
• Touch Continue to clear the message and continue processing.
• Delete fonts, macros, and other data stored on the printer hard disk.
• Install a printer hard disk with larger capacity.
63 Unformatted diskTry one or more of the following:
• Touch Continue to clear the message and continue printing.
• Format the printer hard disk.
If the error message remains, the hard disk may be defective and require 
replacing.
80.xx Fuser life warning• Order a replacement fuser immediately. When print quality is reduced, install 
the new fuser, following the instruction sheet that came with the replacement 
part.
• Touch Continue to clear the message and continue printing.
80 Replace fuser1. Replace the fuser using the instruction sheet that came with the replacement 
part.
2. Touch Continue to clear the message and continue printing.
80 Replace paper pick 
rollers in [paper source], 
use parts and 
instructions in tray 1 
compartmentTry one or more of the following:
• Touch Continue and replace later to ignore the message and continue 
printing.
Note: Worn or defective paper pick rollers may cause paper jams.
• Replace the worn or defective paper pick rollers, and then touch Rollers 
replaced to clear the message and continue printing.
80 Scheduled 
maintenance [x]Contact customer support, and report the message. The printer is scheduled for 
maintenance.
82.xx Replace waste 
toner bottle1. Replace the waste toner bottle.
For instructions on replacing the waste toner bottle, from the printer control 
panel touch More Information.
2. Touch Continue to clear the message and continue printing.
82.xx Waste toner bottle 
missingReinsert the waste toner bottle into the printer.
82.xx Waste toner bottle 
nearly fullOrder a replacement waste toner bottle immediately.
1. Replace the waste toner bottle.
For instructions on installing the waste toner bottle, from the printer control 
panel touch More Information.
2. Touch Continue to clear the message and continue printing.
84 unsupported [color] 
photoconductorRemove the specified photoconductor, and then install a supported one.
84.xx [color] 
photoconductor missingInstall the specified color photoconductor, following the instruction sheet that came 
with the replacement part.
84.xx [color] 
photoconductor nearly 
low1. Order a replacement photoconductor.
2. When print quality is reduced, install the new photoconductor, following the 
instruction sheet that came with the replacement part.
3. Touch Continue to clear the message and continue printing.
84.xx [color] 
photoconductor low1. Order a replacement photoconductor immediately.
2. When print quality is reduced, install the new photoconductor, following the 
instruction sheet that came with the replacement part.
3. Touch Continue to clear the message and continue printing.
User status and attendance messages
User primary message Explanation