1-4 Troubleshooting Rev.D
Confidential
Printer Mechanism Power on Checks
The printer mechanism runs through the following tests when you turn on the power supply to
the printer.
❏
Opens and closes the platen.
❏
Detects carriage home position.
❏
Feeds roll paper to the printer.
This section describes the items that you can check visually.
Opening and Closing the Platen
The printer opens and closes the platen once. Check this operation with the front cover opened.
Figure 1-1 Opening and closing the platen
Detecting the Head Carriage Home Position
The head carriage on a dot impact printer moves to the left side (home position) once and then
to the right side before stopping. Check this operation with the front cover opened.
Figure 1-2 Detecting the head carriage home position
check for the platen open and
close operation
check for head carriage
movement
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