Specifications

35
Troubleshooting
Media Sensing Problems
Rev. A KR403
Media Sensing Problems
The KR403 printer default media mode is Continuous. The printer will remain in this mode
until it is changed by the Windows Driver.
The KR403 printer has automatic media calibration capability for black mark media. Once
the printer is printing or feeding media, the printer continually checks and adjusts the
media sensing to accommodate for minor changes in media parameters from page to
page on a roll, and from roll to roll of media. The printer will automatically initiate a media
length calibration if the expected media length or the page to page gap distance has
exceeded the acceptable variation range when starting a print job or feeding media.
If the printer does not detect blacklines (or notches with black mark sensing) after feeding
the media the default maximum label length distance of 24 inches (610mm), then the
printer will report a media error.
Optionally, the printer can be set to do a short media calibration after loading media or
when closing the printhead with power on. The printer will then feed up to three labels
while calibrating.
The printer will not load the media.
• The media has changed, or a different media guide has been installed.
• Make sure the appropriate media guide is installed for the media being used.
Refer to the Hardware Integrator Guide (P1016701) for instructions.
• Perform the two-flash procedure to recalibrate the printer and then perform the
four-flash procedure to reset the printer default settings. Refer to "Application LED
States" on page 31. Reload the media (refer to the Hardware Integrator Guide
(P1028247) for media loading procedures).
• Load the media manually. Refer to the Hardware Integrator Guide (P1016701) for
instructions.
• The platen (driver) roller maybe losing traction due to:
• Foreign objects attached to its surface.
• The rubbery smooth surface has become polished and slippery.
• The platen may need cleaning or replacement. Refer to the Service Manual
(P1028249) for instructions.
• The media sensor may be dirty or damaged. Refer to the Service Manual (P1028249)
for instructions.
• The printhead assembly is not closed.
• Check the status light on either side of the printer. If the status light is showing four
red flashes then the printhead is not closed. Push down on the printhead
assembly until it locks into place.