CognitiveTPG B780 - Manual (Page 15)

Chapter 2: Printer Status, Ethernet and Indicators 3
A776-PG00001 C 12/09 A776 (B780) Programming Guide
Chapter 2: Printer Status and Indicators
The A776/B780 printer performs a number of diagnostics that provide useful information about the operating status of
the printer. The following diagnostic tests are available.
• Startup diagnostics, performed during startup cycle.
• Runtime diagnostics, performed during normal
printer operation.
• Remote diagnostics, run during normal operation and
reported in the print test.
The printer can be configured with the following settings
and functions through the configuration menu that is
printed on the receipt. To learn more see the section
called “Configuring the Printer” in the A776/B780 User
Guide, page 26.
Communication interfaces (except Ethernet)
Diagnostic modes
RS-232C settings
Printer emulations/software options
Hardware options
Startup Diagnostics
When the printer receives power or performs a hardware
reset, it automatically performs the startup diagnostics
(also known as level 0 diagnostics) during the startup
cycle. The following diagnostics are performed:
• Turn off motors and solenoids
• Perform boot CRC check of the firmware ROM, test
external SRAM, test EEPROM, and test main program
CRC
Failure causes Startup Diagnostics to stop; the
printer beeps and the light flashes a set number of
times, indicating the nature of the failure. The table
in the “Indicators” section (page 16) describes the
specific tone and light sequences.
• Check if paper is present
• Return the knife to the home position
Failure causes a fault condition. The table in the
“Indicators” section (page 16) describes the specific
tone and light sequences.
• Check if receipt cover is closed
Failure does not interrupt the startup cycle.
When the startup diagnostics are complete, the printer
makes a two-tone beep (low then high frequency), the
paper feed button is enabled, and the printer is ready for
normal operation.
If the printer has not been turned on before, or a new
EEPROM has been installed, the default values for the
printer functions will be loaded into the EEPROM
during startup diagnostics.
Runtime diagnostics
Runtime diagnostics (sometimes called level 2
diagnostics) run during normal printer operation. When
the following conditions occur, the printer automatically
turns off the appropriate motors and disables printing to
prevent damage to the printer:
• Paper out
• Receipt cover open
• Knife unable to home
• Printhead too hot
• Voltages out of range
The light on the operator panel will signal when these
conditions occur as well as indicate what state or mode
the printer is in.
Remote diagnostics
Remote diagnostics (sometimes called level 3
diagnostics) keeps track of the following tallies and
prints them on the receipt during the print test. See the
sample test printout on the next page. These tallies can
be used to determine the printer’s state of health.
• Model number
• Serial number
• CRC number
• Number of lines printed
• Number of knife cuts
• Number of hours the printer has been on
• Number of flash cycles
• Number of cutter jams
• Number of times the cover is opened
• Maximum temperature reached
(See tallies note on the following page.)