Service Mode. Table Service Mode Menu Items. PAGES= Displays total number of pages printed by the printer. C Service Mode 77

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1 Service Mode The Service Mode should be used only by authorized service personnel. While in Service Mode, you can: Verify and set the Page Count and serial number. These are displayed on the Configuration Page. Set the Cold Reset Paper Size Default. (This sets the factory default paper size to either Letter or A4.) Clear the Event Log. Initiate the Service Mode as follows: 1 Hold down SELECT and JOB CANCEL while powering on the printer, until all lights are illuminated and the Display is blank. (If the Display Panel reads INTERNAL TEST at this point, the keys were released too soon. Repeat this step until successful.) 2 Press MENU, then SELECT. The message SERVICE MODE is displayed briefly, then the printer automatically begins an INTERNAL TEST. After several seconds, both Control Panel Indicators turn off. (The printer may display WARMING UP if it has not warmed up completely.) After the printer has warmed up and passed the self test, SERVICE MODE is displayed. 3 Press MENU once to display SERVICE MENU. To exit the Service Mode press GO. Table Service Mode Menu Items Service Mode Menu Items Item Choices Actions Required PAGES= Displays total number of pages printed by the printer. Press + to step through values above cursor. Press SELECT to activate choice. Cursor will move to next digit. Printer will set new number into NVRAM after least significant digit is selected. Pressing MENU or ITEM before completing all digits will cancel the new setting. Pressing MENU returns printer to the main menu system. Pressing ITEM moves to the next menu item. C Service Mode 77

2 Table Service Mode Menu Items (continued) Service Mode Menu Items MAINTENANCE COUNT= Item Choices Actions Required Displays the page count when the next preventative maintenance should be performed (maintenance should be performed every 350,000 pages). Press + to step through values above cursor. Press SELECT to activate choice. Cursor will move to next digit. Printer will set new number into NVRAM after least significant digit is selected. Pressing MENU or ITEM before completing all digits will cancel the new setting. MAINTENANCE INTERVAL= Pressing MENU returns printer to the main menu system. Pressing ITEM moves to the next menu item Allows a service technician to change the page count when the PERFORM PRINTER MAINTENANCE 350,000 is the default value. SERIAL NUMBER= xxxxxxxxxx This is provided for customers with printing environments that require more frequent maintenance cycles. Displays printer serial number (also located on the printer back cover). Press + to step through values above cursor. Press SELECT to activate choice. Cursor will move to next digit. Printer will set new number into NVRAM after least significant digit is selected. Pressing MENU or ITEM before completing all digits will cancel the new setting. COLD RESET PAPER= LETTER * A4 DIAGNOSTICS= OFF * ON CLEAR EVENT LOG Pressing MENU returns printer to the main menu system. Pressing ITEM moves to the next menu item. Press + to change setting. Press SELECT to activate choice. For factory test purposes ONLY. DO NOT change. Press SELECT to activate. Printer returns to READY when completed. 78 Chapter 3 Operating Overview C

3 Setting Page Count, Maintenance Count, and Serial Number The page count, maintenance count, and printer serial numbers are stored in Non-Volatile Memory. PAGECOUNT is the total number of images printed by the printer, MAINTCOUNT is the page count when the next preventative maintenance should be performed (every 350,000 images), and SERIAL NUMBER= is the printer serial number (also located on the printer back cover). If it is necessary to replace the Formatter PCA, these numbers should be set to the current values to accurately reflect the age of the print engine. The procedures for setting these values are listed in table Before removing the old Formatter PCA, print a Configuration Page to verify the current values. Note If it is not possible to print a Configuration Page, try to verify the values before replacing the Formatter PCA by following steps 1 through 3, below. After verifying the page count, maintenance count, and printer serial number from the old Formatter PCA, replace it with the new PCA. 1 Enter the Service Mode as previously described in this chapter. 2 When SERVICE MODE is displayed, press MENU to access the Service Menu. 3 Press ITEM to display PAGECOUNT=, MAINTCOUNT=, and SERIAL NUMBER=. 4 Enter the appropriate values for each item. 5 Press GO to exit Service Mode. C Service Mode 79

4 Setting the Cold Reset Default Paper Size When replacing a Formatter PCA with a default paper size setting of A4, set COLD RESET PAPER= to A4. 1 Enter the Service Mode as previously described in this chapter. 2 Press MENU to access the Service Menu. 3 Press ITEM to step through the menu until COLD RESET PAPER=LETTER* is displayed. 4 Press + to toggle between Letter and A4 paper. 5 Press SELECT to activate your choice. 6 Press GO to exit Service Mode. 7 Perform a Cold Reset to activate new choice. 80 Chapter 3 Operating Overview C

5 Testing the Printer Paper Path Test You can test printer operation with the Paper Path Test. It will print 1, 10, 50,100, or 500 (single or 2-sided) pages from any of the paper trays (or the Envelope Feeder) and deliver them to a previously specified output bin. First, select PAPER DESTINATION and 2-SIDED printing (if a duplexer is installed) in the Configuration Menu (table 3-10), and then run the Paper Path Test from the Information Menu (table 3-6). Note If feeding from Tray 1, the default output will always be the Face-up Bin. 1 Press MENU. 2 Press (-)ITEM twice. 3 Press SELECT and continue making your desired paper path test. 4 Press SELECT to execute the test. Configuration Page When you print a Configuration Page, the printer checks its internal controller and I/O interface, then prints a page showing the overall printer configuration (see figure 3-2 on page 82), and a Menu Map showing the current menu settings (see figure 3-3 on page 83). You can review these printouts to verify proper installation of installed accessories, options, and personalities. 1 Press MENU until INFORMATION MENU appears. 2 Press ITEM until PRINT CONFIGURATION appears. 3 Press SELECT to print the configuration pages. C Testing the Printer 81

6 Figure 3-2 Configuration Page (varies with installed options) Table Key to Figure Printer Information lists the serial number, HP JetSend IP addresses, page counts, and other information for the printer. 2 Event Log lists the number of entries in the log, the maximum number of entries viewable, and the last three entries. 3 Installed Personalities and Options lists all printer languages that are installed (such as PCL and PS) and lists options that are installed in each DIMM slot and EIO slot. 4 Memory lists the printer memory, PCL Driver Work Space (DWS), and I/O buffering and resource saving information. 5 Security lists the status of the printer s control panel lock, control panel password, and disk drive. 6 Paper Tray and Options lists the size settings for all trays and lists any optional paper handling devices installed. 7 Toner gauge provides a graphic representation of how much toner is left in the cartridge 82 Chapter 3 Operating Overview C

7 Figure 3-3 Menu Map Page (varies with installed options) Table Key to Figure 3-3 Information Menu lets you print information pages and perform a paper path test. Paper Handling Menu contains paper handling options. Print Quality Menu lets you set print quality settings. Printing Menu contains various print options. Configuration Menu contains various printer settings. I/O Menu contains communication settings. Resets Menu shows options for resetting the printer. Note Items will only appear if options are installed. C Testing the Printer 83