Printing Issues - CognitiveTPG A799 User Manual

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 TPG recommend paper list, resulting in a dirty printhead, the printhead
may require cleaning prior to switching back to TPG 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.
12/08
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
A799-UG00001 Rev. C
Chapter 4: Using the Printer
What to Do
Change the 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
Open the receipt cover,
inspect the knife, and
clear any jammed paper
Check that the paper
is loaded properly
Use recommended
thermal receipt paper
(See note below.)
Increase print density in
"Set Hardware Options"
of printer Configuration
Menu to 110% or 120%
as needed (monochrome
printer only)
Increase energy level of
printhead in "Color
Density Adj" of the
printer configuration menu
Print diagnostic form and
verify setting paper type
setting to type 0, 1, 4, or 5 and the Programming Guide
Stop using the printer
Stop using the printer
A799 Two-Color Thermal Receipt Printer: User Guide
Where to Go
Chapter 3: Setting up the printer,
"Load or change the receipt paper"
(See page 12)
Chapter 3: Setting up the printer,
"Load or change the receipt paper"
(See page 12)
Chapter 5: Paper and Supplies,
"Ordering thermal paper"
(See page 29)
Contact your authorized service
representative or refer to Chaper 4:
Using the Printer, "Configuring the
printer"
USE CAUTION when changing
settings (See page 23)
Chapter 4: Using the Printer,
"Configuring the printer" page 20
and the Programming Guide
Chapter 4: Using the Printer,
"Configuring the printer" page 20
Contact your authorized
service representative
Contact your authorized
service representative
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