Engine Test Print; Engine Nvram Default Settings; Error And Jam Recovery - Xerox 4400DT - Phaser B/W Laser Printer Service Manual

Engine Test Print

The Engine Test Print test pattern (shown on
Board and is accessible through Service Diagnostics. You can use the Engine Test
Print to identify, repair, and validate the operability of printer xerographics and paper
handling from all paper sources, options, and output destinations. When you select
Engine Test Print from the main Service Diagnostics menu, the following selections
are available:
Print Test Pattern
— Allows you to select the paper source
Input Tray
Output Tray
— Turns duplexing on or off if the Duplex Unit is installed
Duplex
Print Quantity

Error and Jam Recovery

If the printer encounters a problem while printing the Engine Test Print, it halts
printing and displays an error message on the Front Panel. Refer to the Diagnostic
Messages in the Print Engine Error Messages table that follows. (The Diagnostic
Messages also appear as secondary headings in the Troubleshooting Procedures.)
Printing resumes after the problem has been fixed.

Engine NVRAM Default Settings

The following table lists the defaults for each of the Engine NVRAM Adjustments
except the paper size adjustments, which have no default settings.
NVRAM Default Table
Engine NVRAM
Adjustment
Laser Power
Tray 1 Process
Direction
Tray 2 Process
Direction
Tray 3 Process
Direction
Envelope Process
Direction
MPT Process
Direction
Tray 1 Scan
Direction
2-10
— Starts the print
— Allows you to select the test print destination
— Allows you to select the number of test prints to run
Default Range
Value
10 0 - 15
8 0 - 15
8 0 - 15
8 0 - 15
8 0 - 15
8 0 - 15
4 0 - 8
page 4-4) is stored in the Engine Logic
Engine NVRAM
Adjustments
Tray 2 Scan Direction
Tray 3 Scan Direction
Envelope Scan Direction
MPT Scan Direction
Duplex Process
Direction
Duplex Scan Direction
Phaser 4400 Laser Printer Service Manual
Default Range
Value
3 0 - 8
2 0 - 8
4 0 - 8
6 0 - 8
8 0 - 15
4 0 - 8