Lexmark X264 Service Manual

Diagnostic aids 3-39
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251 paper jam
A sheet of paper or specialty media failed to feed completely from the multipurpose feeder. Part of it may still be 
visible, If it is visible, then gently pull the jammed sheets from the front of the multipurpose feeder.
If the sheet is not visible, then complete the following steps:
1.Open the front door, and remove the photoconductor kit and toner cartridge.
2.Lift the flap at the front of the printer, and remove any jammed sheets of paper that are short...

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290-294 paper jams
1.Remove all original documents from the ADF.
2.Open the ADF cover.
3.Unlock the separator roll.
4.Remove the separator roll. 

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5.Remove the jammed paper.
6.Reinstall the separator roll, and lock into place.
7.Close the ADF cover, and press .
291.xx ADF paper jams
1.Remove all original documents from the ADF input tray.
2.Remove the ADF input tray. See “ADF input tray removal” on page 4-8.
3.Remove the original from the ADF by pulling the lower sheet (A) from the ADF exit.
4.Replace the ADF input tray. 

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Updating the printer firmware
Using a USB flash drive
The device firmware can be updated from a USB flash drive on models equipped with a USB direct interface on 
the operator panel. The printer must be in a Ready state in order to perform the code update. A MFP that is in 
Invalid Code Mode cannot be updated via the USB thumbdrive
Warning:  Before performing a firmware update on the device, contact your second level support to confirm, or 
obtain the correct code. The wrong...

Diagnostic aids 3-43
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Using the host computer to update the MFP firmware over USB
Note:  This procedure uses the program, USB Flash. USButil is a command line USB flash utility that can also 
be used to update firmware from a host computer via USB. To use any USB flashing utility, the MFP must be 
installed on the host computer so a USB virtual printer port can be established on the host computer. The virtual 
printer port is needed so the host computer can communicate with the MFP.
1.Open the...

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Scanner theory
Duplex ADF
The following illustration shows the paper path, rollers, and sensors used in the duplex ADF.
The duplex ADF enables the user to create duplex scans automatically, eliminating the need to stop the 
scanning process to flip the media being duplicated. The ADF uses a step motor, and a series of sensors to 
determine the media’s position in the paper path during the scan process. 
The following steps are performed in creating a duplex scan on the...

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6. When the ADF scan sensor is actuated the paper advances to the scan area. While the paper is advancing to 
the scan area, the ADF motor generates pulses which are stored in an on-board counter. These counts along 
with the ADF scan sensor ensure that the media is travelling at the correct speed through the scan area. The 
speed the document travels through the ADF scan area is dependent on the image DPI specified by the user.
7. After a predetermined number of counts, the...

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Repair information 4-1
7013-XXX
4.  Repair information
Warning:  Read the following before handling electronic parts.
Handling ESD-sensitive parts 
Many electronic products use parts that are known to be sensitive to electrostatic discharge (ESD). To prevent 
damage to ESD-sensitive parts, follow the instructions below in addition to all the usual precautions, such as 
turning off power before removing logic cards:
•Keep the ESD-sensitive part in its original shipping container (a special “ESD bag”)...

4-2  Service Manual 7013-XXX
Removal procedures
Note:  
•Remove the toner cartridge and media tray before removing other printer parts. The toner cartridge should 
be protected from light while out of the printer. 
•We recommend disconnecting all external cables from the printer to prevent damage during service. 
•Unless otherwise stated, reinstall the parts in reverse order of removal. 
•When reinstalling a part held with several screws, start all screws before final tightening. 
•Remove the paper tray...