Lexmark X543 Service Manual

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Paper jams
Avoiding jams
The following hints can help you avoid jams:
Use only recommended paper or specialty media.
For more information, see the Card Stock & Label Guide available on the Lexmark Web site at 
www.lexmark.com/publications.
Do not load too much paper. Make sure the stack height does not exceed the indicated maximum height.
Do not load wrinkled, creased, damp, or curled paper.
Flex, fan, and straighten paper before loading it....

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Understanding jam numbers and locations
When a jam occurs, a message indicating the jam location appears. The following illustration and table list the 
paper jams that can occur and the location of each jam. Open doors and covers, and remove trays to access jam 
locations.
# Error message Jam message Instructions Go to page
1 200 Standard 250-sheet tray and 
manual feeder (tray 1)Pull tray 1 out, and remove the jam.3-41
2 201 Jam under the...

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200 paper jams
1.
Remove the standard 250-sheet tray (tray 1).
2.Remove the jam.
Note:  Make sure all paper fragments are removed.
3.Inser t the tray.
4.press Select ().
201 paper jam
1.
Grasp the front door at the side handholds, and then pull it toward you to open it.
2.Remove the jammed paper.
Note:  Make sure all paper fragments are removed.
3.Close the top door.
4.press Select ().
3DEF6MNO9WXYZ#2ABC5JKL8TUV01@!
.GHI4PQRS7* 

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202 paper jam
1.
Raise the scanner assembly to the up position.
2.Grasp the front door at the side handholds, and then pull it toward you to open it.
3.Grasp the green lever, and pull the fuser cover toward you.
4.Hold the fuser cover down, and then remove the jammed paper.
The fuser cover closes when released.
5.Close the fuser cover.
6.Close the front door.
7.press Select ( ) to continue. 

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230 paper jam
1.
Grasp the front door at the side handholds, and pull it toward you to open it.
2.Remove the jam.
3.press Select ( ) to continue printing.
235 paper jam
1.
Load the tray with the correct paper size.
2.Inser t the tray.
3.Close the front door.
4.press Select ( ) to continue printing.
24x paper jam
1.
Remove the 650-sheet Duo Drawer (tray 2) out.
2.Remove the jam.
Note:  Make sure all paper fragments are removed.
3.Align the...

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29x ADF paper jam
1.
Remove all original documents from the ADF input tray.
2.Open the ADF top cover. Remove the jammed paper.
3.Close the ADF cover.
4.Open the flatbed cover. Remove any jammed pages.
5.Close the scanner lid.
6.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” on page 4-64. 

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3.Remove the original from the ADF by pulling the lower of the two sheets (A) from the ADF exit.
4.Replace the ADF input tray. 

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Theory of operation
Print engine theory
Electrophotographic Process (EP Process)
The method that all laser and LED printers use to print is called the electrophotographic process. These 
machines use differences in charge to manipulate and move toner from the toner cartridge to the printed page.   
Even though the basic EP process is the same for every laser and LED printer, the specifics for each printer are 
different. We will discuss the...

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Step 1: Charge
During the charge step, voltage is sent from the high-voltage power supply to the charge roller (A) beside each 
of the four photoconductors.   The charge roller is part of the photoconductor unit.
The charge roller (A) puts a uniform negative charge over the entire surface of the photoconductor to prepare it 
for the laser beam. 
Service tips
If the surface of the charge roller is damaged (such as a nick or pit), it will cause...

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Step 2: Expose
During the expose step, the laser fires a focused beam of light at the surface of each photoconductor (B) and 
writes an invisible image called a latent image or electrostatic image for each color. 
The laser beam actually discharges the surface only where the beam hits the photoconductor. This creates a 
difference in charge potential between the exposed area and the rest of the photoconductor surface. 
Service tips
The laser...