Communications / Host Computer Verification; Error Handling; Run-Time Errors - Intermec 6820 Series User Manual

Error Handling

6820 Series 80-Column Printer User's Manual

Communications / Host Computer Verification

Use the self-test report to verify that the communications protocol options,
selected at the printer, match those expected by the host. If they do not
match the expected results, reconfigure the printer using the control panel
configuration modes described below in the Configuration part of this
chapter.
If the protocol options match, then the communications cable may be de-
fective. To determine if the cable is working, substitute a new cable. If the
host computer is suspect, substitute a different host computer. A defective
computer dock might be another possibility.
Printer Errors are divided into several classes: POST errors, Run-Time er-
rors, and Fatal errors (consisting of flash write errors and EEPROM block
errors).

Run-Time Errors

Run-time errors can occur during the course of printing. These errors are
displayed on the LEDs, along with beep sequences. This causes the printer
to stop printing and enter an error state. Then beep sequences are emitted,
LED codes are displayed, the error status may be sent to the host (depend-
ing on the protocol), and the printer goes into suspend mode.
The printer exits from the suspend mode when the user presses one of the
keyboard keys or communications is resumed from the host. The printer
also places the print head in its home position and attempts to recover
from the error condition. Until the error condition is corrected, the error
procedure does not end, and the error state is not removed.
For PAPER OUT errors, the user must load paper and press the SET
PAGE button before printing begins. The paper may be loaded to the top
of form, either manually or automatically, by pressing the FORM FEED
button to wake the printer from suspend mode.
—
Chapter 7 Troubleshooting and Diagnostics
115