Lexmark E350d Service Manual - Page 45

Parallel or USB port service check, Media skews, Media trees, wrinkles, stacks poorly, or curls - printer driver

Page 45 highlights

Media skews FRU Paper feed (pick tires) tray 1 Paper feed (pick tires) tray 2 Tray 1 Tray 2 (option) 4512-420, -430 Action Check tires for debris. If tires are new, 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. Media "trees," wrinkles, stacks poorly, or curls FRU Fuser Action 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. Parallel or 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 parallel 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 bidirectional parallel cable is installed, but the printer still fails to print on command from the host computer, replace the controller card. 5. Check the USB cable for continuity. Diagnostics information 2-23

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Diagnostics information
2-23
4512-420, -430
Media skews
Media “trees,” wrinkles, stacks poorly, or curls
Parallel or 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 parallel 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 bidirectional parallel cable is installed, but the printer still fails to print on command from the host
computer, replace the controller card.
5.
Check the USB cable for continuity.
FRU
Action
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, 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.
FRU
Action
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.