Xerox 4400DT Service Manual - Page 45
Service Diagnostics Menu Map, Component Checks, NVRAM Access
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Component Checks - Tests print engine component functions. NVRAM Access - Lets you reset the PS NVRAM locations to factory defaults. Exit - Reboots the Printer out of Diagnostics. Service Diagnostics Menu Map The Service Diagnostics Menu Map lists the tests available for testing print engine parts and functions while diagnosing printer problems. When you enter Service Diagnostics, the menu items shown in bold type appear on the front panel. When you select one of these items, the list of individual tests appear. Print Service Menu Map: Prints this page Solenoid Tests:Test the functionality of printer solenoids General Status: Provides current print engine status. *MPT Solenoid Stacker Direction Solenoid Engine ROM Version Engine Print Counter Engine Configuration Print Resolution Clutch tests:Test the functionality of printer clutches. *Registration Clutch *Tray 1 Feed Clutch Read Fuser Temperature Read Fuser Set Temperature *Tray 2 Feed Clutch *Tray 3 Feed Clutch Engine Test Print: Starts the test print. Print Test pattern Input tray Output tray *Tray 1 Turn Roll Clutch *Tray 2 Turn Roll Clutch *Tray 3 Turn Roll Clutch *Envelope Feeder Clutch Duplex Engine NVRAM Adjustments: Perform NVRAM adjustments essential to Print Quantity the performance of the printer. Motors/Fan Test: Test the functionality for motors/fan. Duplex Motor High Duplex Motor Low Exit Motor Forward Exit Motor Reverse High Exit Motor Reverse Low Main Motor Fan Motor High Speed Laser Scan Motor Stacker Motor Stacker Offset Motor Laser Power Setting MPT Paper Size Adjustment Envelope Paper Size Adjustment Tray 1 Process Direction Tray 2 Process Direction Tray 3 Process Direction Envelope Feeder Process Direction MPT Process Direction Tray 1 Scan Direction Tray 2 Scan Direction Tray 3 Scan Direction Envelope Feeder Scan Direction Main Motor + Clutch/Sol Tests: * Runs main drive motor with each MPT Scan Direction individual clutch and MPT solenoid. Duplex Process Direction Duplex Scan Direction Sensor Tests: Tests the functionality of sensors/switches/options by manually toggling each sensor or installing an option. Component Checks: Front Cover Switch Laser Diode Rear Cover Switch Detack Saw Output Paper Tray Size Read (display paper size, for trays) Transfer Roll + Print Cartridge Switch Transfer Roll ñ Toner Sensor Developer Bias AC Registration Sensor Developer Bias DC Exit Sensor (Fuser) Charge Roll AC Duplex Sensor Charge Roll DC Stacker Sensor Stacker Full Sensor NVRAM Access: This menu lets you reset the PS NVRAM locations to Output Tray Full Sensor (Printer) Tray 1 Low Paper Sensor factory defaults. PostScript NVRAM Reset Tray 2 Low Paper Sensor Tray 3 Low Paper Sensor Exit: Reboots Printer out of Diagnostics. Tray 1 No Paper Sensor Tray 2 No Paper Sensor Tray 3 No Paper Sensor MPT No Paper Sensor Envelope Feeder No Paper Sensor For Service Use Only: The Service menu functions are to be used by Xerox service personnel and authorized service providers. The printer can be damaged by improper use of the built-in service tests. Envelope Feeder Presence Duplex Unit Presence Stacker Unit Presence 2-8 Phaser 4400 Laser Printer Service Manual
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