Intermec 6820 User Manual page 104

Chapter 5 — Troubleshooting and Maintaining the 6820
86
Head Jam 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 thumbwheel.
Speed Indicates the acceleration speed of the printhead when the
jam occurred.
Step The acceleration step at the jam. 0 means no steps were
taken, 15 means all steps were taken. 1-14 indicates the
printer jammed during acceleration or deceleration.
Temp The ambient temperature at the last head jam. The
temperature is listed in Celsius.
Position Position of carriage at the time of the jam in 1/720 in = 12
* step position. Divide the number by 12 to get the step
position. There are 512 steps across the page. If it is
jammed at position 0, check the printer mechanism
alignment. If it is jamming in the middle, it is more likely
a dirty ribbon or obstruction in the printhead's path.
• Head Dot Pattern (line 37)
Is used to verify the individual dot wires. There should be nine
dots. If some dots are missing, it could be a printhead failure or a
circuit board failure.
• Error Log information appears on lines 38-43. This information is
cleared after every self-test.
Error Log Information
Heading Description
PE Number of paper jams while feeding paper
HJ Number of head jams while printhead is moving
12Vu Number of 12 V under-voltage
12Vo Number of 12 V over-voltage
6820 Series 80-Column Printer User Manual