Lexmark 4049LMO Service Manual - Page 48

4049-XXX LAN Problems You cannot find a printer or network problem, but jobs still do not print. If the network card checks out successfully, the problem may be with the hardware or software outside of the network card. Below are some suggestions to the customer for checking hardware and software for possible problems. Refer the customer to the LaserPrinter Network Printer Utility Guide to find the problem. • Make sure the network protocol you want is enabled from the printer operator panel. • Verify proper print queue and printer driver configuration. • Verify the adapter port has been associated. • Verify correct installation of the software utility. • Single route broadcast not supported across network bridge, if bridge is used. • Server problem; check print server installation and configuration using the appropriate system guide to operations. Light Print Light print is frequently caused by a worn out print cartridge. Clean the transfer roll by powering on and off two or three times, leaving the printer on for about two minutes each time. Other causes are the same as for "Blank Page". See "Blank Page" on page 2-14. Make sure Print Darkness on the customer menu is set to Normal or Dark. Increasing the diagnostics mode Print Contrast setting will darken print further. PostScript emulation output may appear lighter than PCL emulation output or a test print; this is not a defect. Verify on the Print Test that the print is too light before performing service. Network Card 977 Errors All network card errors are recorded as 977 in the error log. If there are 977 errors in the log, POR several times and take the appropriate action for the displayed error code. 2-21