Xerox 4400DT Service Manual - Page 186

Adjustments Registration Check This procedure checks the printer registration in the horizontal (scan) direction and the vertical (process) direction for both simplex and duplex printing. If any registration measurement does not meet specification, perform the adjustment procedure on page 4-6. 1. Enter Service Diagnostics and select Engine Test Print and press OK. 2. Scroll to Input Tray and press OK. 3. Press the Down or Up keys to select the input source that requires verification and press OK. 4. Scroll to Print Quantity and press OK. 5. Select a quantity of 5. Note: Use the OK key to move the highlight over the digit you want to change. Use the Up and Down keys to change the value of the digit. When you have changed each digit so that the quantity is correct, press the Back key to enter the selection. 6. Scroll to Print Test Pattern and press OK to print an Engine Test Pattern. Note: The measurement should be made on two consecutive test patterns from the input source. 7. Measure the distance from the lead edge of the paper to the first horizontal line (measurement A in the figure on page 4-4). The measurement should be 4 mm ±2 mm. 8. Measure the distance from the left edge of the paper to the edge of the thick vertical line. The measurement should be 5 mm ±2 mm. 9. Repeat steps 2 through 8 for each input source. To test the duplex registration, continue with step 10. 10.From the Engine Test Print menu, scroll to Duplex and press OK. 11.Set Duplex to On and press OK to save the setting. Note: If Duplex is Off, press the Down key to change it to On, and if Duplex is On, press the Down key to change it to Off. 12.Repeat steps 2 through 8 for each input source. Check the registration for the duplexed prints. Phaser 4400 Laser Printer Service Manual 4-5