User's Manual

Troubleshooting and Diagnostics
Chapter
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7
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6820 Series 80-Column Printer User’s Manual
4 Hold the printer mechanism in this position and securely tighten the
screws in the sequence shown.
Push mechanism to the right.
Push mechanism
to the back
1TopRight
2 Bottom Left
3Top
Left
4 Bottom Right
The four position screws that hold down the printer mechanism are shown in this illustration. Be
sure to do the screws in the order given.
The position of the print head should NOT touch the pivot frame or press
nut. If the print head does touch the pivot frame or press nut, return the
printer for hardware repair.
Communications or Host Computer
The self-test report can verify that the communications protocol options
selected for the printer match those expected by the host computer. If
these options do not match, then reconfigure the printer using the control
panel configuration modes.
If the protocol options do match, then the data communications cable
may be defective. Verify that the cable is working by substituting a n ew
cable or host computer. Also, check the computer vehicle dock.