Comen CM300 - Chapter 6 Disassembling Procedure; 6.1 Disassemble the rear panel

Shenzhen Comen Medical Instruments co., ltd.
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Problem with the print head.
Change new print head
Print unclear
Print head unclean
Clean the print head
Printer defective.
Change new printer.
Main board defective.
Change new main board
Print paper jam
Printer is not covered properly
or installed with inclined paper.
Check if printer is covered properly or
paper installed in right position.
Print paper type incorrect
Change the Correct Paper
Printer in incorrect position
Adjust the position of printer
Main board defective.
Change new main board.
Print out of paper
Print paper type incorrect
Change correct print paper type.
Print paper in incorrect position
Load print paper in correct position
Print head unclean
Clean the print head
Main board defective.
Change new main board