Programmer's Guide
POSjet
®
1500
Codes and Commands
Nov-07
Rev M
Page 45
Level 0 Diagnostics
Level 0 diagnostics always and only run at power up.
Level 0 diagnostics perform the following tasks:
1.
Basic System Integrity
2.
Vector Integrity
3.
RAM Test
4.
Flash Boot Loader Integrity
5.
Flash Firmware Integrity
6.
Start Normal Firmware
7.
Verify Configuration Integrity
8.
Interface Card Configuration
9.
User-store Integrity
10.
Electronic Journal Integrity (and repair if necessary)
11.
Start Kernel, Verify Multitasking, Start Tasks
Once the kernel is running, the following tests must pass to allow operation.
However, if any test fails (except the knife home test), the remaining tests
will generate recoverable faults and normal operation will start as soon as the
fault is cleared. These tests are also run when operation is resumed from
OFF.
12.
Cartridge Integrity
13.
Cover Closed Check
14.
Knife Home (if installed)
15.
Carriage Home
16.
Schedule Cartridge Maintenance
17.
Paper Present
18.
Assure the validation path is clear.
19.
Place Printer On-line, Start Normal Operation
Firmware Test
The flash test has two phases. The first phase determines that the boot loader is accurate, and the second verifies
that the printer firmware is correct. All tests, up to and including the boot loader test, generate non-recoverable
errors when they fail. The power must be removed from the printer, and the printer must be returned for service.
If the boot loader is intact, but the main firmware is bad, the printer automatically enters boot loader mode. The
firmware will re-loaded into the printer.
Boot Loader Mode
The boot loader cannot be entered during normal operation. Boot loader mode can only be entered in one of two
ways. One, when Level 0 Diagnostics finds that the firmware check CRC is bad, or two, manually. To manually
enter the boot loader, hold the
*
Button during power up. The
indicator comes on, and the
indicator
blinks. At this time, the firmware boot file may be sent to the printer. Level 0 diagnostics are prevented from
starting the firmware and boot load mode is forced to begin.
Summary of Contents for POSJET 1500
Page 1: ...PROGRAMMER S GUIDE POSjet 1500 PN 20 03398 Rev M Nov 2007...
Page 14: ......