HP 4300 Service Manual - Page 281

Table 41. Alphabetical printer messages (continued) Message Description Action INSERT OR CLOSE TRAY XX For help press Tray XX must be inserted or closed before the current job can be printed. 1. Press the HELP ( ) button for detailed information. 2. Press the UP ARROW ( ) button and the DOWN ARROW ( ) button to step through the instructions. 3. If the error persists, verify that the indicated tray's media-size sensor (PS102, SW801, or SW1) is properly operating. See figure 213 on page 336, figure 217 on page 340, or figure 220 on page 343. Verify that the sensor "fingers" inside the tray are engaging the tray sensor correctly. 4. Print a configuration page. See "Configuration page" on page 241. 5. If the tray settings on the configuration page are correct, verify that the tray's paper-out sensor is operating. See "Printer switches and sensors" on page 336, "500-sheet feeder switches, sensors, solenoids, and PCAs" on page 340, or "1,500-sheet feeder switches, sensors, solenoids, and PCAs" on page 343. INSTALL CARTRIDGE alternates with For help press The cartridge is either not installed or not correctly installed in the printer. 1. Insert the cartridge, or make sure that the cartridge is fully seated. 2. Press the HELP ( ) button for detailed information. 3. Press the UP ARROW ( ) button and the DOWN ARROW ( ) button to step through the instructions. 4. If the error persists, replace the cartridge. 5. Verify that the connectors between power supply and transfer assembly are not damaged. 6. Replace the power supply. See "Power supply" on page 188. 7. Replace the transfer assembly. See "Transfer assembly" on page 200. Q2431-90912 Chapter 7 Troubleshooting 261