4.1.5 Menu Map …………………………………………………… 4-11
4.1.6 Tech Mode …………………………………………………… 4-12
4.1.7 EDC Mode …………………………………………………… 4-19
4.1.8 Firmware Upgrade ………………………………………… 4-22
4.1.9 Periodic Defective Image…………………………………… 4-23
4.1.10 Error Message……………………………………………… 4-24
4.2 Troubleshooting…………………………………………………… 4-28
4.2.1 Procedure of Checking the Symptoms …………………… 4-28
4.2.2 The cause and solution of Bad image …………………… 4-29
4.2.3 The cause and solution of the bad discharge …………… 4-45
4.2.4 The cause and solution of the malfunction ……………… 4-52
4.2.5 The cause and solutions of
bad environment of the software ………………………… 4-61
4.2.6 Fax & Phone Problems …………………………………… 4-64
4.2.7 Copy Problems ……………………………………………… 4-73
4.2.8 Scanning Problems ………………………………………… 4-77
4.2.9 Fuser Problems and solutions …………………………… 4-80
5.1 Block Diagram …………………………………………………… 5-1
5.2 Connection Diagram……………………………………………… 5-2
6.1 Tool for Troubleshooting ………………………………………… 6-1
6.2 Acronyms and Abbreviations …………………………………… 6-2
6.2.1 Acronyms …………………………………………………… 6-2
6.2.2 Service Parts ………………………………………………… 6-4
6.3 The Sample Pattern for the Test………………………………… 6-8
6.3.1 A4 ISO 19752 Standard Pattern …………………………… 6-8
6.4 Selecting a location ……………………………………………… 6-9
Contents
chapter 6 Reference Information
chapter 5 System Diagram