7/27/2023 0 Comments Step seq whitescreenIn a single exposure, you’ll learn whether a stencil is over-or under-exposed and how to adjust the exposure time for a durable stencil. Please call from near the printer in case the technician on the phone asks you to perform a task involving the printer.If you want to ensure that your screen is properly exposed, you’ll want to have a 21-Step Exposure Guide on hand. If you need help locating these, How to Locate the Serial Number, Machine Type, and Configuration ID on a Lexmark C746, C748 or X746, X748 Printer/MFP. NOTE: When calling for support, you will be asked for your machine/model type and serial number ( SN). Please contact Lexmark Technical Support if you need additional assistance. If the above suggestions fail to resolve the issue, or should you find the source of the issue and need help arranging service, please contact Lexmark Technical Support or a local authorized service provider for additional assistance. Note: If the Green LED is ON and Main Fan is running during power-up sequence, the operator panel is not functioning and will likely need to be replaced (please contact a local authorized service center or Lexmark Technical Support). If the printer still fails to power up, verify whether the Green LED on the front of the printer is still on and the Main Fan is spinning. If the printer still fails to power up, verify that the wall outlet is working properly by connecting another device to it to see whether it receives power, or try another grounded outlet. Should this test not bepossible, confirm that the power strip is switched on and functioning correctly. This is true even if the printer has worked on this surge device previously. Some of these devices can interfere with consistent electrical flow and cause the printer to fail to power up properly. Note: If printer's power cord is plugged into power strips, surge protectors, extension cords and uninterruptible power supplies ( UPS), unplug it and connect it directly to a grounded wall outlet. Please contact a local authorized service center or Lexmark Technical Support. This will require a service action on the printer. If the power cord is damaged, it will need to be replaced. However, the operator panel is not functioning and will likely need to be replaced (please contact a local authorized service center or Lexmark Technical Support).Ĭlean dust or any other build-up from the printer’s power cord. If the page prints, the printer is still receiving power. Note: If the printer's operator panel is blank but you hear the printer power up as normal, try printing a page from the computer. The printer normally goes through a short warm-up sequence where it sounds as though it were going to print out a page. Power on the printer and listen to it for one minute. NOTE: While this issue often requires service, it may be temporary and capable of resolution without assistance from Lexmark Technical Support. If the Operator Panel screen does not power on (i.e., light up), or goes entirely blank and unresponsive as though it were not receiving power, or should lines appear in the display, please follow the instructions below. Lexmark C74x&X74x ? No Display, Black/Blank Screen or Lines Appear in the Display
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