User's Manual Part 3

Chapter 6 — Troubleshooting
108 6822 Series 80-Column Printer User’s Manual
• Battery Voltage, (line 13)
Indicates the input voltage sampled at the beginning of the self-test.
The input range must be between 7.5 and 15 V. The input voltage
must be greater than 10.5 V to charge the internal battery. At 7.5 V or
less, the Low Batt LED comes on and the printer enters Sleep mode.
At 10.5 V or less, the Low Batt comes on but the printer still prints.
• Auto Feed (line 16)
Auto feed is a configurable item. Carriage Return (CR) means no
auto linefeed. This is the most common setting for applications using
NPCP CR+LF means a line feed will be added to each CR. This
setting can produce double-spacing of reports. See “Setting the
Autofeed” on page 29
• Interface Mode (line 17)
Interface mode lists the interface protocol for the printer. The typical
setting is NPCP. Others include DTR with no, odd, or even parity,
and IrDA. See “Protocol Selection Mode” on page 29
• Bit Rate (line 18)
Bit rate is commonly set to 19200 (19.2K) or 9600 bps. See
“Selecting the Bit Rate” on page 29
• A2D History (lines 21 through 25)
Shows the recorded history for voltage measurements and
temperature measurements.
• Head Jam History (lines 26 through 29)
Provides information on head jams. If the printer is having frequent
head jams, these lines can assist in determining the problem.
Head Jam History Information
Heading Description
Home Err indicates the home position LED sensor has failed.
Command Indicates which printer command was executed when the
head jammed.
Direction Indicates which way the head was moving, left is toward the
home position and right is away from the home position.
Home position is at the extreme left, toward the green thumb
wheel.
Speed Indicates the acceleration speed of the printhead when the
jam occurred.