Printing Issues - CognitiveTPG A799 User Manual

30 Chapter 4: Using the Printer

Printing issues

Condition
Colored stripe on
the receipt
Receipt does not come
out all the way
Printer starts to print, but
stops while the receipt is
being printed
Receipt is not cut
Print is light or spotty
Color print is light
Inconsistent printing,
no two-color print
Vertical column of print
is missing
One side of receipt is
missing
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 effect
on print quality.
Do not try to clean within the printer except as noted in the A799 Service Guide, Chapter 4: Cleaning and
Maintenance.
A799 Two-Color Thermal Receipt Printer: User Guide
Possible Causes
Paper is low
Paper is jammed
Paper is jammed
Paper is jammed
Paper roll loaded
incorrectly
Thermal printhead is dirty
Variations in paper
Variations in paper
Paper type used and
paper type do not match
This indicates a serious
condition with the printer
electronics
This indicates a serious
condition with the printer
electronics
What to Do Where to Go
Change the paper Chapter 3: Setting up the printer,
"Load or change the receipt paper"
(See page 12)
Open the receipt cover,
inspect the knife, and clear
any jammed paper
Open the receipt cover,
inspect the knife, and clear
any jammed paper
Open the receipt cover,
inspect the knife, and
clear any jammed paper
Check that the paper Chapter 3: Setting up the printer,
is loaded properly "Load or change the receipt paper"
(See page 12)
Use recommended Chapter 5: Paper and Supplies,
thermal receipt paper "Ordering thermal paper"
(See note below.)
(See page 29)
Increase print density in Contact your authorized service
"Set Hardware Options" representative or refer to Chaper 4:
of printer Configuration Using the Printer, "Configuring the
Menu to 110% or 120% printer"
as needed (monochrome USE CAUTION when changing
settings (See page 23)
printer only)
Increase energy level of Chapter 4: Using the Printer,
printhead in "Color "Configuring the printer" page 20
and the Programming Guide
Density Adj" of the
printer configuration menu
Print diagnostic form and Chapter 4: Using the Printer,
verify setting paper type "Configuring the printer" page 20
setting to type 0, 1, 4, or 5 and the Programming Guide
Stop using the printer Contact your authorized
service representative
Stop using the printer Contact your authorized
service representative
A799-UG00001 Rev. D 11/2012