Printer Configuration
If the card is read successfully, a short beep will sound, “Card Read Ok” will be displayed and the 
MCR Indicator will stop flashing and remain on briefly to indicate success as the data is sent to the host system.
If the card is not read successfully, a longer error tone will sound, “Card Not Read” will be displayed and the 
Error Indicator will also begin to flash. If the read operation is not cancelled by the host application within a few seconds, the 
Error Indicator will stop flashing and the printer will return to the “Swipe Card Now” mode. At this time the card may be swiped again to attempt a successful read.
The length of time allowed before the timeout is specified by the host application program. Once a timeout occurs, the 
Error Indicator will turn on momentarily and “MCR Timeout” will be displayed.
Additional Messages
Check Paper
This message is displayed and the 
Error Indicator flashes whenever the printer runs out of print media. This may also occur if there has been a paper jam that prevents paper from feeding into the print head. To clear the error, first clear the jam and/or install new media. For information on how to replace the media supply or to check for a possible jam, please refer to “Installing Media” on page 4 in the Getting Started section of this manual.
Next, momentarily press the 
Paper Feed Button to resume printing. After the error has been cleared, printing may resume differently depending on the model printer you are using.
In the MLP 3040 and MLP 3040 LP models with printer firmware prior to version 2.8, printing will begin again where it left off. If the printer has firmware version 2.8 or later, the printer will perform a Form Feed and then reprint the last print job. If the entire job does not print as expected, the host program may need to be modified to make use of the printer’s buffer commands. Please refer to the MLP Series & PrintAbout Programmer’s Manual for more information.
In the MLP 3040 SL model, printing will restart at the beginning of the current page. If the Check Paper error occurred at the beginning of a page, the printer will load a page from the new cassette and continue. If, for some reason, the Check Paper error occurred mid page, the printer will reprint the entire page after a new cassette has been loaded.
It is also possible that a false paper error may be detected when using “black mark” sensing on preprinted forms. This condition should not occur unless the size of the black mark on the form is larger than the size allowed for in the host application program. Please refer to the MLP 3040 Series Programmer’s Manual for more information.
Paper Door Open
This message is displayed and the 
Error Indicator flashes when the printer is attempting to print and the Paper Door is not fully closed. To correct this error, make sure that the media is loaded properly, close the Paper Door, and momentarily press the 
Paper Feed Button.
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