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Chapter 4 Diagnostics Menu
• All E’s. A pattern of all uppercase E’s that identifies missing characters,
misplaced dots, smeared characters, improper phasing problems, or light/
dark character variations.
• E’s + TOF. A pattern of all E’s followed by a form feed to the next page
top of form, that identifies paper motion or feeding problems.
• All H’s. A pattern of all uppercase H’s used to detect missing characters,
misplaced dots, smeared characters, or improper phasing.
• All Underlines. An underline pattern useful for identifying hammer bank
misalignment.
• All Black. A condition where all dot positions are printed, creating a solid
black band.
• Shuttle Slow. Verifies proper operation by exercising shuttle and ribbon
motion at low speed.
• Shuttle Fast. Verifies proper operation by exercising shuttle and ribbon
motion at fast speed.
• Shuttle Only. Exercises only the shuttle at fast speed.
• Phase Printer. It is recommended that only a Hewlett-Packard Customer
Service Engineer run this test.
The Phase Printer test checks for wavy print. The initial phase value is set
in the factory. The Customer Service Engineer (CSE) runs the test and
checks the quality. (The phase value prints on the left margin.) If the print
looks too wavy, the CSE changes the Phase Value parameter by
pressing the
6 key while the test is running. A value between 1 and 2000
displays. To change the value, the CSE presses the
4or3key until the
desired value displays, and then presses ENTER.
• Paperout Adj. It is recommended that only a Hewlett-Packard Customer
Service Engineer run this test.
The Paperout Adj. allows the Customer Service Engineer to specify
where the last line of text will print when there is a paper out condition.
Setting this parameter correctly prevents printing on the platen. (See the
LineJet Printers Maintenance Manual
for more information.)
• Burnin Test. Running this test is not recommended.
• Print Error Log. Prints a log of the last 50 errors that have occurred in
the printer.
• Clear Error Log. Clears the error log.
• E-Net Test Page. Prints the Ethernet statistics stored on the Ethernet
adapter (if present).
Note The printer must be printing the phase pattern of “H’s” when the Phasing
Value is changed or the new phasing value will not be written into non-
volatile RAM (NVRAM). If the value is changed when not printing, the
printer will return to its default phasing value when powered off and then
back on.
