Lexmark X 204 Service Manual

							Repair information4-9
7011-2xx / 3xx
Flatbed front cover removal
1.
Lift the flatbed assembly to the elevated postion. 
2.Place your fingers under the two tabs (A) on the flatbed front cover. 
3.Disengage the tabs, and pull the cover away from the MFP.
4.Lift the cover up and away, and remove it from the MFP. 
						

							4-10Service Manual 7011-2xx / 3xx
Left and right flatbed cover removals
Note:  These steps are used for both the left and right flatbed covers.
1.Lift the ADF to the upright position.
2.DIsengage the five tabs securing the cover to the flatbed.
Note:  The tabs are the same for both covers. 
						

							Repair information4-11
7011-2xx / 3xx
3.Lift the cover up and out. 
4.Remove the cover from the MFP. 
						

							4-12Service Manual 7011-2xx / 3xx
Card cage removal
1.Remove right cover.
2.Remove screw (A) securing the card cage to the frame.
3.Press in metal tab, and remove card cage. 
						

							Repair information4-13
7011-2xx / 3xx
Controller card removal
Warning:  If you are replacing the operator panel and controller card, do not replace them at the same time. 
Replacing both parts at the same time will result in settings being lost.
1.Replace the controller card first, and POR the MFP to Ready.
2.Replace the operator panel. and POR the MFP to Ready.
Note:  Do not use a new controller card or operater panel for testing purposes. 
Warning:  Always touch a ground before touching the card.
Warning:  Handle the card by the edges. 
Note:  Use part number 40X1548 for the X203, serial number 5920000 or greater
Note:  Use part number 40X1549 for the X204n, serial number 5920000 and greater.
1.Remove the right cover.
2.Remove the card cage. See “Card cage removal” on page 4-12.
3.Remove snap on toroid holding the cables at the top of the controller card.
4.Disconnect all the cables to the controller card.  
						

							4-14Service Manual 7011-2xx / 3xx
5.Remove the screw (A) securing the USB port at the back of the MFP. 
						

							Repair information4-15
7011-2xx / 3xx
6.Remove four screws (B) that secure the controller card to the metal side frame.
7.Carefully lift the card, and remove. 
Note:  The scanner registration and calibration, as well as printer registration, must be set after replacing the 
controller card. See “Registration” on page 3-3 and “Scanner Manual Registration” on page 3-20. Also, the 
serial number,“Serial Number” on page 3-8 must be set.
B 
						

							4-16Service Manual 7011-2xx / 3xx
Cover open sensor removal
1.Remove right side cover.
2.Remove the toroid from the group of cables located at the top of the controller card.
3.Disconnect the cover open switch at J11 on the controller card, and extract the cable. 
4.Use a small Phillips screwdriver to remove the screw (A) that secures the sensor to the printer frame.
5.Slide the sensor from the positioning post.  
						

							Repair information4-17
7011-2xx / 3xx
Developer drive coupling assembly removal 
1.Remove the left side cover. See “Left side cover removal” on page 4-4. 
2.Carefully place the MFP on its right side. Protect the cover from marring. 
3.Remove four screws (A) in the gear train metal cover.
4.Remove the gear train metal cover.
5.Remove the conical spring (B) and the developer drive coupling assembly (C). 
						

							4-18Service Manual 7011-2xx / 3xx
Exit sensor removal (on the fuser) 
1.Remove the paper exit guide assembly. See “Paper exit guide assembly removal” on page 4-37 for 
more information.
2.Unplug the exit sensor at J8 on the controller card. 
3.Push the shaft (A) to the right using your right thumb against the inside gear surface and left index finger 
against the opposite end of the shaft.
Warning:  There will be some lubricant on the gear and shaft. Be sure to wipe hands clean with each 
contact to prevent spreading lubricant to other areas.
4.Align the two flats with the opening of the bearing support, and lift the right end of the shaft through the 
support. 
5.Swing the shaft away from the MFP to expose the sensor flag.