| Steps | Action |
| 1 | If this is the first time the issue has occurred, power off the printer. Let it sit for one minute, and then power it on again. Did the issue return? Yes: If the printer continues to lock on power-up, continue with the steps below.No: If the printer powers up to the Ready screen, try printing. If the printer now prints correctly, continue normal use. Pay close attention to the printer over the next few days, however, to see if the issue returns. Important! Do not power the printer off and on too quickly. Doing so can cause a power issue and create this type of situation. Also if you have already tried powering the printer off and on, skip ahead to Step 2. |
| 2 | Power off the printer again. While the printer is off, clear any pending print jobs from the computer or the network queue. This will prevent any corrupted print jobs from being re-sent to the printer when it is powered back on. |
| 3 | Disconnect all communication cables (i.e., the parallel, Ethernet, and USB cables). The only cable that should be connected to the printer at this time is the power cord. There might be a problem with either the printer, a communication cable, or the print job itself. |
| 4 | Confirm that the voltage at the outlet matches the voltage rating of the printer (i.e., that a 120V printer is not connected to a 220V outlet, or vice versa). Each printer's voltage rating is located on a label on the back of the printer. If possible, connect the printer's power cord directly into a grounded wall outlet.
Note: This step is especially important if the issue occurs intermittently. Power strips, surge protectors, extension cords and uninterrupted power supplies (UPS) can trigger this type of issue. This is true even if the printer has worked on this surge device previously.
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| 5 | If the printer voltage matches the line voltage, power on the printer again. See if it continues to lock up or if it now displays the Ready screen. Did the issue return? Yes: If the printer continues to lock on power-up, continue with the steps below.No: If the printer powers up to the Ready screen, try printing. If the printer now prints correctly, continue normal use. Pay close attention to the printer over the next few days, however, to see if the issue returns.
Note: If you power the printer back on with no communication cables attached and it still continues to lock on power-up or when it reaches the Ready status, an option on the printer may be failing. Try to perform as many of the following steps below as possible.
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| 6 | Power off the printer again. Check option connectors on back of copier for damage. If connectors are damaged, a service action may be required in order to correct the issue. For assistance in setting up service, please contact Lexmark Technical Support or a local authorized service provider. |
| 7 | Disconnect all options from RIP card (Fax, Hard drive, memory, DLE, network cable, USB devices, etc). Also remove any paper feed options that are installed on the printer, including any additional paper trays, a duplex option, and the finisher output option. Each of these options has a small electrical board installed that, if it fails, can cause the printer to lock. Power on the printer again. Did the issue return? Yes: If the issue continues after you have performed the steps above, a service action may be required in order to correct the issue. For assistance in setting up service, please contact Lexmark Technical Support or a local authorized service provider.No: If the printer powers up to the Ready screen, enter the printer menus and print the Menu Settings page. If this page prints out, a failed or incompatible option may be causing the issue. For a set of recommended actions, skip ahead to the section below labeled 'Option Diagnosis'.
Note: See the User's Guide for removal instructions. You will need to lift the printer in order to remove any input (paper tray) options installed. The printer is extremely heavy. Enlist the help of another person and disconnect all cables and cords before lifting the printer.
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