Printronix P5000LJ user manual Printer Tests, Diagnostics Menu

Chapter 4 Diagnostics Menu

Printer Tests

The printer tests are used to check the print quality and printer operation.

Note	Your Customer Service Engineer typically runs these tests. They are
	described in more detail in the P5000LJ Series Printers Maintenance
	Manual.

The Printer Tests parameters are described below. (For test running procedures, see page 278.)

•Shift Recycle. A sliding alphanumeric pattern that identifies missing or malformed characters, improper vertical alignment, or vertical compression.

•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 an authorized Printronix representative runs 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 ￿ key while the test is running. A value between 1 and 2000 displays. To change the value, the CSE presses the￿or￿key until the desired value displays, and then presses ENTER.

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