HP 4550 Service Manual - Page 228

Table 7-2 Alphabetical printer error messages (continued) Description: Action: The waste toner full sensor PS13 detects a waste toner full 1. condition. A light receiver and light pipe arrangement, along with a window in the drum assembly, look for a waste fill 2. Replace the drum kit. Check the sensor, replace it if it's defective. condition. Verify that sensors and light pipes are not blocked. Numerical printer error messages Table 7-3 Numerical printer error messages 13.XX Jam Note Refer to the jam troubleshooting section for the complete details about locating jams (see page 237). XX Description: 4500 4550 0 1 Jam in input feed area 1 5 Jam in fusing area 2 6 Jam in fusing area 3 10 Jam in duplex reversing unit 4 11 Jam in duplex feed unit 5 12 Jam in duplex paper feed area or ITB drawer 6 13 Jam in duplex paper feed area or ITB drawer 7 20 Jam in paper feed area or ITB drawer 8 21 Door open jam 9 23 Irregular jam in paper path 10 24 Paper in the paper path is too short 11 25 Paper in the paper path is too long (see page 237 for complete details) 12 2 Paper did not clear input sensor in time. Action: 1. Note the location of the leading edge of the first jammed piece of media. 2. Note the jam message. 3. Note the location of the media. alternates with CHECK ALL REAR DOORS Description: Media is jammed in the rear paper path or rear duplexing area. Action: 1. Open the rear duplex door (if installed) and remove any jammed media. 2. Open the upper rear door and remove any jammed media. alternates with CHECK MIDDLE FRONT DOORS Description: Action: Media is jammed in the transfer belt area or media is 1. Open the ITB drawer and remove any jammed not being picked up properly. media. 2. Check for media between the transfer roller and the fusing assembly. alternates with CHECK FRONT DUPLEX DRAWER Description: Media is jammed in the front duplexing area. Action: Open the duplex drawer and remove any jammed media. 226 Troubleshooting C7085-90921