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Using the control panel
Follow these steps to check the print head nozzles using the control panel.
1. Make sure that paper is attached to the tractor unit.
2. While pressing the Load/Eject button, press the On button until the On light flashes.
Below are two sample nozzle check patterns.
Compare the quality of the printed check page with the sample shown below. If there are no print
quality problems, such as gaps or missing segments in the test lines, the print head is fine.
GP-C830/GP-C831/GP-C832 GP-M830/GP-M831/GP-M832
If any segment of the printed lines is missing, as shown below, this could mean that an ink nozzle is
clogged. See “Cleaning the Print Head” on page 99.
GP-C830/GP-C831/GP-C832 GP-M830/GP-M831/GP-M832
GP-C830/GP-M830/GP-C831/GP-M831/GP-C832/GP-M832 User’s Guide
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