Text preview for : 04-TestsAdjustmts.pdf part of XEROX PHASER XEROX Phaser 4400
Back to : 04-TestsAdjustmts.pdf | Home
Tests Prints, Adjustments, and NVRAM Reset
Section Contents
Service Test Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Test Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Engine Test Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 Fuser Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Resetting NVRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Customer Menu Resets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 Service Diagnostics Resets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 Front Panel Shortcut Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Service Test Prints
There are two test prints stored in the printer that are primarily intended for service use. One is the Test Print that is accessible from the printer's Printable Pages Menu when you select Print Test Prints. The other is the Engine Test Print, which is stored in the Engine Logic Board and is accessible through the Engine Test Print menu in Service Diagnostics.
Phaser 4400 Laser Printer Service Manual
4-1
Test Print
This page of blocks, lines, patterns, and text provides an aid in evaluating the quality of printing and in making registration adjustments. The use of the Test Print in evaluating image quality is covered in detail in Image-Quality Checkout Procedures on page 3-41. Note: Insure that Edge-to-edge printing is set to OFF in the PCL Job Defaults Menu before starting the Test Print. Otherwise, the image will be shifted left.
The printer prints the Test Print in accordance with the defaults established in the Job Defaults Menu. To set the Job Defaults: 1. Select the Printer Setup Menu and press OK. 2. Select the Job Defaults Menu and press OK. 3. Select the print parameter that you want to set or change and press OK. In most cases, you are prompted to choose from several alternatives, such as choosing the input tray. In other cases, Job Offset for instance (if optional Stacker is installed), pressing OK toggles the setting from its current state, either from Off to On, or from On to Off. When you set the quantity, it is for a number of image pairs. When Duplexing is off, selecting a quantity of 5 prints ten single-sided prints. When duplexing is on, selecting a quantity of 5 prints five double-sided prints. 4. When you have finished setting all the parameters, scroll to Exit and press OK to return the printer to the Ready state. To print the Test Print: 1. Select Printable Pages Menu from the Main Menu and press OK. 2. Select Print Test Prints and press OK. The printer automatically prints two images. Note: If you changed the print quantity, be sure to set it back to 1
4-2
Phaser 4400 Laser Printer Service Manual
Phaser 4400 Laser Printer Service Manual
4-3
Engine Test Print
The Engine Test Print is stored on the Engine Logic Board and is used for checking the functionality of various print engine components and for making the registration adjustment.
4-4
Phaser 4400 Laser Printer Service Manual
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. The measurement should be made on two consecutive test patterns from the input source.
6. Scroll to Print Test Pattern and press OK to print an Engine Test Pattern. Note:
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
Adjustment
1. Enter Service Diagnostics and select Engine NVRAM Adjustments. 2. Scroll to the process adjustment (Tray [#] Proc Direction) or scan adjustment (Tray [#] Scan Direction) for the desired tray and press OK. 3. Use the Up or Down keys to set the new value. (Each increment of change equals 0.5mm.) Note: In the scan direction, increasing the value moves the image to the right and decreasing the value moves the image to the left. In the process direction, increasing the value moves the image toward the trail edge and decreasing the value moves the image towards the lead edge.
4. Press OK to save the setting. 5. Press the Back key, then scroll to Engine Test Print and press OK. Scroll to Print Test Pattern to print an Engine Test Pattern. 6. Measure the distance from the lead edge of the paper to the first horizontal line (measurement A in the figure). The measurement should be 4 mm ±2 mm. 7. 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. 8. Repeat steps 1 through 7 until correct measurements are achieved. 9. Perform Registration (Side-to-Side) on page 3-47 and Registration (Lead Edge-to-Trail Edge) on page 3-48. Repeat this adjustment procedure if the results are incorrect.
Fuser Temperature
Four temperature ranges, listed in the Fuser Temperatures table, are available for each paper type supported by the printer. The default fuser temperature for each paper type is listed in the Fuser Configuration Defaults table. To set the fuser temperature: 1. Select Menus | Printer Setup Menu | Tray Setup Menu | Fuser Configuration Menu. 2. Select Set Temperature for [paper type]. 3. Select a temperature from the four available (you must scroll up to see Extra High) and press OK.
Fuser Temperatures Temperature Setting
Temperature Range
Low
197 - 203°C 354 - 365°F
Medium
197 - 206°C 354 - 371°F
High
209°C 376°F
Extra High
210 - 215°C 378 - 387°F
Fuser Configuration Defaults Plain
Medium
Letterhead Labels
Medium High
Colored Paper
Medium
Card Stock
High
Envelope Special
High Medium
4-6
Phaser 4400 Laser Printer Service Manual
Resetting NVRAM
Resetting NVRAM returns all the Image Processor Board NVRAM-stored parameters to their factory default values. You can reset the PostScript NVRAM using the Customer Menu, the Service Diagnostics Menu, or the Front Panel Shortcut.
Customer Menu Resets
Resetting job defaults
Resetting the job defaults resets the paper source, print-quality mode, 2-sided printing, and image smoothing to their default values. 1. 2. 3. 4. From the Main Menu, highlight Print Setup Menu and press OK. Highlight Job Defaults Menu and press OK. Scroll to Reset Job Defaults and press OK. Select Reset Job Defaults NOW and press OK to reset the job defaults.
Resetting Printer setup values to default
Resetting the Printer setup values resets the job defaults, front panel language, Intelligent ready, MPT Tray setup, Tray 1 -3 setup, startup page, front panel intensity, front panel contrast, PostScript error information and energy star to their default values. 1. From the Main Menu, select Printer Setup Menu and press OK. 2. Select Reset Printer Setup Menu and press OK. 3. Select Reset Printer Setup NOW and press OK.
Resetting Connection Setup Values to Default
Resetting the connection setup values resets the TCP/IP address, TCP/IP address menu settings (gateway, broadcast, etc.), CentreWare IS, EtherTalk, NetWare, set IPX frame type, IPP and Ethernet speed to their default values. 1. From the Main Menu, select Connection Setup Menu and press OK. 2. Select Reset Connection Setup and press OK. 3. Select Reset Connection Setup NOW and press OK. Caution Make note of the current network settings or print a configuration page to preserve the customers current network settings prior to resetting the network setup to factory default values.
Phaser 4400 Laser Printer Service Manual
4-7
Resetting All Printer Default Settings (PostScript NVRAM)
Resetting the NVRAM restores all printer values stored in the IP controller NVRAM including network, printer setup, job defaults, and margin to their factory default values. The print counts and the Adobe firmware serial number are not affected by this reset. 1. 2. 3. 4. From the Main Menu, scroll to Support Menu and press OK. Scroll to Service Tools Menu and press OK. Reset NVRAM is highlighted -- press OK. Highlight Reset NVRAM and Reset Printer NOW and press OK to reset all the settings to their factory default values.
Fuser Reset
The Fuser Reset procedure restarts the counter that tracks Fuser life. The procedure must be performed following installation of the Maintenance Kit. To perform the fuser reset: 1. 2. 3. 4. From the Main Menu, scroll to Supplies Info Menu and press OK. Scroll to Reset Fuser Life and press OK. Reset NVRAM is highlighted -- press OK. Highlight Reset NVRAM and Reset Printer NOW and press OK to reset all the settings to their factory default values. Select Menus | Supplies Info Menu | Reset Fuser Life | Reset Fuser Life NOW.
Service Diagnostics Resets
Resetting the NVRAM restores all printer values stored in the Image Processor controller NVRAM including network, printer setup, job defaults, and margin to their factory default values. 1. 2. 3. 4. Enter Service Diagnostics. Scroll to NVRAM Access and press OK. PostScript NVRAM Reset is highlighted -- press OK. When "Resetting NVRAM! Are you sure?" is displayed, highlight Yes and press OK.
The printer now exits Service Diagnostics and reboots. While booting, NVRAM is reset.
Front Panel Shortcut Reset
The following front panel shortcut can be used to reset PostScript NVRAM
Mode
Reset PostScript NVRAM
Press this selection at power-on
BACK+OK When "Password" appears, press UP + DOWN keys within 2 seconds.
4-8
Phaser 4400 Laser Printer Service Manual
Print Engine NVRAM
There is no single reset for the Print Engine NVRAM.
Phaser 4400 Laser Printer Service Manual
4-9
4-10
Phaser 4400 Laser Printer Service Manual