HP Color LaserJet CP2020 Service Manual - Page 243

Table 7-8 2ndary Service menu (continued) Menu item Sub-menu item Location A list of available locations appears Display test Button test Show FW Version Color Cal. Enter MAC Addr. Adjust color Timing Description This item sets certain product parameters that are dependent on the location, such as the default paper size and the symbol set. Scroll to the desired location, and select Yes to set the location. The product automatically restarts after you change the location. Use this test to verify that the LEDs and characters on the control-panel display function correctly. At the beginning of the test, each of the LEDs illuminates one-at-time. Press OK to continue to the next LED. After the LED test is complete, the character test begins by testing the pixels on each line. Then, each of the 255 characters displays in groups of 16. Press OK to continue to the next group of 16 characters. You can cancel the test at any time by pressing X. Use this test to verify that the control-panel buttons function correctly. The display prompts you to press each button. This item shows the current date code of the firmware. Use this item to adjust density settings for contrast, highlights, midtones, and shadows. Adjust each color individually. Use this item to specify how frequently the product automatically performs a color calibration. The default setting is 48 hours. You can turn automatic calibration off. Use this item to specify the MAC address for the product. The MAC address is in hexadecimal code. Use the Right arrow button to scroll through the possible values for each character. When a digit is correct, press OK to move to the next digit. ENWW Service mode functions 223