Table of Contents Page........4.3.23 Stacker Cover 189........4.3.24 Fusing Unit 190........4.3.25 Manual Feed Assembly 191........4.3.26 Back-up Roller, Transfer Roller 192........4.3.27 Resist Roller, Hopping Roller, Sensor Plates 193........4.3.28 Eject Guide Assembly 1945 Adjustments5.1 Setting of LED Print Head Drive Time 195....Settings of Technical Function No. 26 (Table 5.1.1) 196....5.2.1 Confirmation Items 197....5.2.2 Measurement 1986 Cleaning and Maintenance6.1 Replacement of Consumables 1996.2 Routine Inspection 2006.3 Printer Counter Display/Clear (User) 2016.4 Printer Counter Display/Clear (Service) 2026.5 Self-Diagnosis Test 2036.6 Sensor Calibration Test 2046.7 LED Test 2056.8 Tone Send Test 2066.9 High-Speed Modem Send Test 2076.10 High-Speed Modem Receive Test 2086.11 MF Send Test 2096.12 Tone (TEL/FAX) 2106.13 ISDN Sending Test 2116.14 Tone Send Test G3 2116.15 Moden Send Test G3 2116.16 MF (Tone) Test G3 2116.17 Protocol Data Dump Printing 2116.18 System Reset 2126.19 Service Codes 213....Service Code list [Table 6.15.1] (1/2) 214....Service Code list [Table 6.15.1] (2/2) 215....G4 Service Code Lists 216....6.19.3 Internet-Fax Service Code List 2167 Troubleshooting