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Printer Self–Tests
With the exception of testing the interface between the printer and the host
computer (and the associated data cable), you do not need to send data from the
host computer to the printer to test printer operation. You can use the printer's
built-in diagnostic tests to check many of the functions of your printer, including
print quality and overall operation. These diagnostic tests include the following:
v Printer Demonstration
v Print Error Log
v Ripple Print
v All E's
v All H's
v All E's + FF (Form Feed)
v Underlines
Note: The Operator Print Test menu is displayed in Chapter 4, "The Configuration
Demonstrates all the functions and features available on the printer.
This test prints the contents of the printer's internal error log.
A "sliding" alphanumeric pattern used to identify missing or malformed
characters, improper vertical alignment, or vertical compression.
A pattern of all uppercase letter E's used to identify missing characters,
misplaced dots, smeared characters, improper phasing, or light/dark character
variations.
A pattern of all uppercase letter H's used to detect missing characters or dots,
smeared characters, or improper phasing.
A pattern of all uppercase E's repeated for ten lines and followed by a form feed
to the next page top-of-form, used to identify paper motion or feeding problems,
such as paper path obstruction or improper forms.
An underline pattern useful for identifying hammer bank misalignment.
Menus," on page 39.
Chapter 7. Routine Service and Diagnostics
215
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