Service Manual
Page 8
... Output rollers ...139 Stepping motor ...141 Solenoid ...141 Fan assembly ...142 Pickup assembly ...144 Paper lift-plate assembly and pickup roller shaft 145 To reinstall the paper lift-plate assembly 148 Right plate assembly ...149 Left plate assembly ...150 Bottom assemblies ...152 ECU fuses and ECU pan 152 Paper-feed assembly ...155 6 Troubleshooting Basic troubleshooting ...161 Control-panel messages...
... Output rollers ...139 Stepping motor ...141 Solenoid ...141 Fan assembly ...142 Pickup assembly ...144 Paper lift-plate assembly and pickup roller shaft 145 To reinstall the paper lift-plate assembly 148 Right plate assembly ...149 Left plate assembly ...150 Bottom assemblies ...152 ECU fuses and ECU pan 152 Paper-feed assembly ...155 6 Troubleshooting Basic troubleshooting ...161 Control-panel messages...
Service Manual
Page 102
...Step 4 Step 5 Step 6 Step 7 The ECU activates the laser/scanner assembly and the motor. To ensure that is being written on the page. After the image is eliminated. Drum-cleaning stage-During this process, the heat and pressure fuse the toner into the media to light, which wear, degrade,... photosensitive properties of the process. Fusing stage-During this process, the cleaning blade is fed, a main separation pad and two subpads hold the remainder of media, so that the image that only one main input area. CAUTION 6. The feed-assembly drive rollers advance the media to...
...Step 4 Step 5 Step 6 Step 7 The ECU activates the laser/scanner assembly and the motor. To ensure that is being written on the page. After the image is eliminated. Drum-cleaning stage-During this process, the heat and pressure fuse the toner into the media to light, which wear, degrade,... photosensitive properties of the process. Fusing stage-During this process, the cleaning blade is fed, a main separation pad and two subpads hold the remainder of media, so that the image that only one main input area. CAUTION 6. The feed-assembly drive rollers advance the media to...
Service Manual
Page 112
To reinstall the paper lift-plate assembly 148 Right plate assembly ...149 Left plate assembly ...150 Bottom assemblies ...152 ECU fuses and ECU pan 152 Paper-feed assembly ...155 96 Chapter 5 Removal and replacement ENWW
To reinstall the paper lift-plate assembly 148 Right plate assembly ...149 Left plate assembly ...150 Bottom assemblies ...152 ECU fuses and ECU pan 152 Paper-feed assembly ...155 96 Chapter 5 Removal and replacement ENWW
Service Manual
Page 158
Lift off the solenoid. Separate the scanner from the printer ) and remove the left-side door and back cover (see ECU fuses and ECU pan) before rerouting the cables through the hole (callout 4) in the right-side plate, remove the ECU pan (see Left-side door and .... Figure 5-72. Remove the solenoid (2 of 2) Reinstallation tip If you have trouble rerouting the cables through the hole (callout 2) in the right-side plate. 6. Fan assembly 1.
Lift off the solenoid. Separate the scanner from the printer ) and remove the left-side door and back cover (see ECU fuses and ECU pan) before rerouting the cables through the hole (callout 4) in the right-side plate, remove the ECU pan (see Left-side door and .... Figure 5-72. Remove the solenoid (2 of 2) Reinstallation tip If you have trouble rerouting the cables through the hole (callout 2) in the right-side plate. 6. Fan assembly 1.
Service Manual
Page 159
3. Remove two screws (callout 3). 5. Remove the fan assembly. ENWW Printer assemblies 143 Remove the fan (1 of 2) Reinstallation tip If you have trouble rerouting the cables through the hole (callout 4) in the right-side plate, remove the ECU pan (see ECU fuses and ECU pan) before rerouting the cables through the hole (callout 4) in the right-side plate. 7. Gently thread the fan cable through the hole. Figure 5-73. Remove the fan (2 of 2) 4. Figure 5-74. Carefully unwind the cables from the cable guides (callout 2). Remove the fan assembly. 6.
3. Remove two screws (callout 3). 5. Remove the fan assembly. ENWW Printer assemblies 143 Remove the fan (1 of 2) Reinstallation tip If you have trouble rerouting the cables through the hole (callout 4) in the right-side plate, remove the ECU pan (see ECU fuses and ECU pan) before rerouting the cables through the hole (callout 4) in the right-side plate. 7. Gently thread the fan cable through the hole. Figure 5-73. Remove the fan (2 of 2) 4. Figure 5-74. Carefully unwind the cables from the cable guides (callout 2). Remove the fan assembly. 6.
Service Manual
Page 168
... 10 amps for the 110 V model and 20 amps for both models. (The fuses are shown in callout 12 in Figure 5-92. Unplug the three spade connectors (callout 1). 4. Bottom assemblies This section includes procedures to the back of the product is 2.5 amps for the 220 V model. By removing... these two covers, you can replace the two fuses (if necessary) on the side of the connector. 6. Unplug five ...
... 10 amps for the 110 V model and 20 amps for both models. (The fuses are shown in callout 12 in Figure 5-92. Unplug the three spade connectors (callout 1). 4. Bottom assemblies This section includes procedures to the back of the product is 2.5 amps for the 220 V model. By removing... these two covers, you can replace the two fuses (if necessary) on the side of the connector. 6. Unplug five ...
Service Manual
Page 171
...post in callout 14 contacts the grounding spring in Figure 5-92. Remove the ECU pan (see Left-side door and Back cover). 2. ENWW Bottom assemblies 155 The fuse closest to ensure that the microswitch (callout 13) is 10 amps for the 110 V model and 20 amps for both models. Lift the ECU... into the ECU area from front to back to the back of the product. Remove the right plate assembly (see Right plate assembly). 3. Unwind the fan and solenoid cables from the paper-feed mechanism. Paper-feed assembly 1. Note 11 Remove the ECU pan (5 of the ECU pan. 14 13 10 12 9 Figure 5-...
...post in callout 14 contacts the grounding spring in Figure 5-92. Remove the ECU pan (see Left-side door and Back cover). 2. ENWW Bottom assemblies 155 The fuse closest to ensure that the microswitch (callout 13) is 10 amps for the 110 V model and 20 amps for both models. Lift the ECU... into the ECU area from front to back to the back of the product. Remove the right plate assembly (see Right plate assembly). 3. Unwind the fan and solenoid cables from the paper-feed mechanism. Paper-feed assembly 1. Note 11 Remove the ECU pan (5 of the ECU pan. 14 13 10 12 9 Figure 5-...
Service Manual
Page 177
...still does not rotate, replace the ADF. 4. If the scanner bulb still does not turn on , replace the scanner assembly. 5. Near the end of a failed power source, cable, switch, or fuse. (No LEDs are correct, replace the ECU. 8. Verify that the product doors are functional. 5. The ADF motor does... not rotate, or the scanner bulb does not 1. Verify that media is blank.) 1. If the problem persists, replace parts one at a time in to 40 ...
...still does not rotate, replace the ADF. 4. If the scanner bulb still does not turn on , replace the scanner assembly. 5. Near the end of a failed power source, cable, switch, or fuse. (No LEDs are correct, replace the ECU. 8. Verify that the product doors are functional. 5. The ADF motor does... not rotate, or the scanner bulb does not 1. Verify that media is blank.) 1. If the problem persists, replace parts one at a time in to 40 ...
Service Manual
Page 226
... product. Open the print-cartridge door. 2. Note the position of the cable. If the mark did not move, inspect the main drive assembly to work. Heating-element check Paper passes between the two pins at least ten minutes. Verify that the thermistor connector is present on the photosensitive...that you removed the entire length of the sealing tape from the main drive assembly. To measure the continuity of the heating element, measure the resistance between the heating element and a soft pressure roller to fuse toner to view the drum surface. If a dark and distinct toner image is...
... product. Open the print-cartridge door. 2. Note the position of the cable. If the mark did not move, inspect the main drive assembly to work. Heating-element check Paper passes between the two pins at least ten minutes. Verify that the thermistor connector is present on the photosensitive...that you removed the entire length of the sealing tape from the main drive assembly. To measure the continuity of the heating element, measure the resistance between the heating element and a soft pressure roller to fuse toner to view the drum surface. If a dark and distinct toner image is...
Service Manual
Page 321
... 183, 184 troubleshooting 182 fuser roller, observing 214 fuses 152 fusing stage, image-formation process 86 G gear kit ordering 253 gear, 69T 136 glass, cleaning 50 gray background, troubleshooting group-dial report 217 guide assembly removing 128 guides cleaning 183 troubleshooting 202 182, 191...122 height, product 7, 26 high-capacity print cartridges 2 ENWW high-voltage power supply connector assembly, checking 213 operations 82 testing 211 HP Care Pack 14 HP Customer Care Online 250 HP Technical Training 250 humidity specifications 7 troubleshooting 182, 187, 191 I I/O, Enhanced 75 IC CS...
... 183, 184 troubleshooting 182 fuser roller, observing 214 fuses 152 fusing stage, image-formation process 86 G gear kit ordering 253 gear, 69T 136 glass, cleaning 50 gray background, troubleshooting group-dial report 217 guide assembly removing 128 guides cleaning 183 troubleshooting 202 182, 191...122 height, product 7, 26 high-capacity print cartridges 2 ENWW high-voltage power supply connector assembly, checking 213 operations 82 testing 211 HP Care Pack 14 HP Customer Care Online 250 HP Technical Training 250 humidity specifications 7 troubleshooting 182, 187, 191 I I/O, Enhanced 75 IC CS...