
Chapter 4: Using the Printer30
A799II Two-Color Thermal Receipt Printer: User Guide A799-2UG0000 Rev. A 09/2013
Print is light or spotty Paper roll loaded Check that the paper Chapter 3: Setting up the printer,
incorrectly is loaded properly “Load or change the receipt paper”
(See page 14)
Thermal printhead is dirty Use recommended Chapter 5: Paper and Supplies,
thermal receipt paper “Ordering thermal paper”
(See note below.) (See pages 33-34)
Variations in paper Increase print density in Contact your authorized service
“Set Hardware Options” representative or refer to Chaper 4:
of printer Conguration Using the Printer, “Conguring the
Menu to 110% or 120% printer”
as needed (monochrome USE CAUTION when changing
printer only) settings (See page 26)
Color print is light Variations in paper Increase energy level of Chapter 4: Using the Printer,
printhead in “Color “Conguring the printer” page 27
Density Adj” of the and the Programming Guide
printer conguration menu
Inconsistent printing, Paper type used and Print diagnostic form and Chapter 4: Using the Printer,
no two-color print paper type do not match verify setting paper type “Conguring the printer” pages 24-25
setting to type 0, 1, 4, or 5 and the Programming Guide
Vertical column of print This indicates a serious Stop using the printer Contact your authorized
is missing condition with the printer service representative
electronics
One side of receipt is This indicates a serious Stop using the printer Contact your authorized
missing condition with the printer service representative
electronics
Note: If paper has been used which is not on the CognitiveTPG recommend paper list, resulting in a dirty printhead, the
printhead may require cleaning prior to switching back to CognitiveTPG recommended paper. See Chapter 5 for a list.
If non-recommended paper is used over an extended period, attempting to clean the printhead will have little eect
on print quality.
Do not try to clean within the printer except as noted in the Service Guide, Chapter 4: Cleaning and Maintenance.
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