HP 2500 L Service Manual
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EN 5 Removal and replacement159 500-sheet feeder motor 1Unplug one connector (callout 1) from the motor. 2 Remove two screws (callout 2) and then lift the motor from the feeder Figure 106. Removing the 500-sheet feeder motor 2 2 1 2
EN 6 Troubleshooting161 6Troubleshooting Chapter contents Basic troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Clearing jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Control panel light messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Supplies Status lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Printer Status lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Attention with Ability to Continue secondary messages . . . . . . . . . . . . . 177 Accessory error secondary messages . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Service error secondary messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 Solving image-quality problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 Solving image-quality problems (all print jobs) . . . . . . . . . . . . . . . . . . . . 184 Solving image-quality problems (color print jobs) . . . . . . . . . . . . . . . . . . 191 Resolving problems that generated messages . . . . . . . . . . . . . . . . . . . . . . . 194 Resolving problems that did not generate messages . . . . . . . . . . . . . . . . . . 195 Solving general printing problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Solving PostScript (PS) errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 Solving common Macintosh problems . . . . . . . . . . . . . . . . . . . . . . . . . . 202 Rotating the print-cartridge carousel. . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 Functional checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 Engine test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 Half self-test functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Drum-rotation functional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Heating element check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 High-voltage power-supply check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 Paper-path check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 Service mode functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 Cold reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 NVRAM initializer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 Troubleshooting tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Demo page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Configuration page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Supplies Status page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Repetitive image defect ruler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 General timing charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 Locations of connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Dc controller connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 Main wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219 HP Color LaserJet 2500 Series Toolbox . . . . . . . . . . . . . . . . . . . . . . . . 222
162Troubleshooting C9706-90926 Basic troubleshooting Table 20. Basic troubleshooting # Verification steps Possible problems Solutions 1 Does the printer turn on successfully? When the printer is connected to a grounded power source, the control panel lights should cycle one after another and the cartridge carousel should rotate.No power. 1. Verify that the printer is plugged in. 2. Verify that the power cable is functional and that the power on-off switch is on. Control panel lights do not cycle. Verify that the control panel cable is seated into both the control panel and the formatter. If the cable is connected correctly, replace the control panel. 2 Is the printer ready? The printer should function without error- indicator light messages appearing on the control panel or error messages appearing on the Printer Status and Alerts screen. Control panel lights, other than the Ready light, are on or blinking. Consult the lists of control panel light messages on page 169 to identify and correct the error. An error message appears in the Printer Status and Alerts screen. See “Resolving problems that generated messages ” on page 194. There is a problem, but no control panel lights are on or blinking, and no messages appear on the Printer Status and Alerts screen. See “Resolving problems that did not generate messages ” on page 195. 3 Do engine tests and information pages print? Print an engine test (see page 205). The engine test should print without paper-feed problems or print- quality problems. Also print a Demo page or a configuration page (see page 210). Note The formatter must be connected to a power source to perform an engine test. The engine test is not successful. An error-indicator light message appears on the control panel. Consult the lists of control panel light messages on page 169 to identify and correct the error. Printer Status and Alerts software generates an error message. See “Resolving problems that generated messages ” on page 194. Poor print quality. See “Solving image-quality problems ” on page 183. 4Is the software installed correctly? Software is not installed or an error occurred during software installation.Uninstall and then reinstall the printer software. Make sure that you use the correct installation procedure and the correct port setting.
EN 6 Troubleshooting163 5Does the printer print from the computer? Connect the parallel cable or USB cable to the printer and to the computer. Use a word- processing application to send a print job to the printer. A USB cable and a parallel cable are both connected to the printer. When both cables are connected, the USB automatically disables itself. Disconnect both cables and then reinstall the one you want to use. The cable is not connected correctly. Reconnect the cable. An incorrect printer driver is selected. Reset the printer driver. (Check for the correct port setting.) Other devices are connected to the parallel port. Disconnect the other devices and try to print again. Table 20. Basic troubleshooting # Verification steps Possible problems Solutions
164Troubleshooting C9706-90926 Clearing jams Occasionally, paper or other print media can become jammed during a print job. Causes include the following: Input trays are loaded improperly or are overfilled. Optional tray 2 or optional tray 3 is removed during a print job. The top cover is opened during a print job. Too many sheets have accumulated in an output area or blocked an output area. The media being used does not meet HP specifications. See the user guide for information about print-media specifications. The environment in which the paper was stored is too humid or too dry. See the user guide for information about print-media specifications. Non-HP supplies are installed in the printer. Where to look for jams Jams can occur in these locations: Inside the printer. See “To clear jams from inside the printer ” on page 165. In input areas. See “To clear jams from input areas ” on page 166. In output areas. See “To clear jams from output areas ” on page 167. Find and remove the jam by using the instructions on the following pages. If the location of the jam is not obvious, look first inside the printer. Loose toner might remain in the printer after a jam. This problem should resolve itself after a few sheets have printed. See “Loose toner ” on page 187.
EN 6 Troubleshooting165 To clear jams from inside the printer CAUTION Jams in this area might result in loose toner on the page. If you get toner on your clothes or hands, wash them in cold water. (Hot water will set the toner into the fabric.) 1Open the top cover. 2 Remove the imaging drum by pushing it away from you and lifting it out of the printer. Note Yo u cannot reach jams by removing the print cartridges. 3 Complete one of these steps: If the leading edge or the trailing edge of the paper is visible, carefully pull the paper out of the printer. If the paper is too difficult to remove, remove the jam as described in “To clear jams from output areas ” on page 167. 4 After the jam has been removed, replace the imaging drum and close the top cover. 5 Press ( G O) if the Go light is blinking. If the Attention light is still blinking, then another jam is present. See “To clear jams from input areas ” on page 166 and “To clear jams from output areas ” on page 167. 3 1 2 4
166Troubleshooting C9706-90926 To clear jams from input areas 1Open optional tray 2 or optional tray 3 to expose the jam. 2 Complete one of these steps: If the jam has already partially entered the printer, see “To c l e a r jams from inside the printer” on page 165. If the jam is only in the input tray, remove the jam by pulling it out by the visible edge. Realign all of the paper in the tray and proceed to step 4. 3 If you could not remove the jam from inside the printer or by pulling it out of the tray, grasp the jam from the outside of the printer and carefully pull it free. 4 Push the paper down to lock the metal lift plate into place (tray 2 only) and slide the tray back into the printer. 5 Open the top cover, close it again, and then press ( G O) if the Go light is blinking. If the Attention light is still blinking, then another jam is present. See “To clear jams from inside the printer ” on page 165 and “To clear jams from output areas ” on page 167. 1 3 4 2 5
EN 6 Troubleshooting167 To clear jams from output areas CAUTION Jams in these areas might result in loose toner on the page. If you get toner on your clothes or hands, wash them in cold water. (Hot water will set the toner into the fabric.) 1Complete one of these steps: If the paper is not almost completely visible from the top output bin, proceed to step 2. If the paper is almost completely visible, pull it carefully out of the printer and proceed to the step 9. 2 Open the rear output door. 3 If the leading edge of the paper is visible from the rear opening, carefully pull the paper out. 4 If the jam is too far into the printer to remove, turn off the printer and disconnect the power cable. CAUTION Always turn off the printer and disconnect the power cable before you remove the fuser. 5Rotate the locks on the fuser to the unlocked position. 1 2 5 3 4
168Troubleshooting C9706-90926 6Grasp the fuser handles and pull to remove the fuser from the printer. WARNING! The parts on the internal surface of the fuser are very hot. To avoid burning yourself, do not touch those parts. 7Using both hands, slowly and steadily remove any paper from inside the printer. Then, carefully reinsert the fuser and secure the locks. 8 Reconnect the power cable and turn on the printer. 9 Open the top cover, close it again, and then press ( G O) if the Go light is flashing. If the Attention light is still blinking, then there is another jam. See “To clear jams from inside the printer ” on page 165 and “ To clear jams from input areas ” on page 166. 6 7