Brother HL 2060 - B/W Laser Printer Service Manual page 7

6. OPERATION................................................................................................ VI-23
6.1 Line Inspection Mode Procedure ..................................................................................... VI-23
6.2 DRAM Test....................................................................................................................... VI-25
7. STATUS MESSAGE LIST .......................................................................... VI-26
CHAPTER VII TROUBLESHOOTING............................................VII-1
1. HIDDEN FUNCTIONS ................................................................................. VII-1
1.1 Holding down Specified key(s) at Power on...................................................................... VII-1
1.2 Off-line and Hold down Mode + FF CONT keys ............................................................... VII-2
1.3 Off-line and Hold down CONT + SEL keys ..................................................................... VII-17
APPENDIX A
1. Engine Block Diagram .................................................................................. A-1
2. Paper Feed/Size-SW PCB Circuitry Diagram (1/1) ....................................... A-2
3. Main PCB Circuitry Diagram (1/7)................................................................. A-3
4. Main PCB Circuitry Diagram (2/7)................................................................. A-4
5. Main PCB Circuitry Diagram (3/7)................................................................. A-5
6. Main PCB Circuitry Diagram (4/7)................................................................. A-6
7. Main PCB Circuitry Diagram (5/7)................................................................. A-7
8. Main PCB Circuitry Diagram (6/7)................................................................. A-8
9. Main PCB Circuitry Diagram (7/7)................................................................. A-9
10. Control Panel PCB Circuitry Diagram (1/1)................................................. A-10
11. Laser LD PCB Circuitry Diagram (1/1) ........................................................ A-11
12. Serial NO. Description ................................................................................ A-12
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