V.
I.
PREFACE ............................... 4-1
II.
IV
V.
C. Variable Resisters, LEDs,
Test Pins, Jumpers and
Switches on PCBs .............. 4-40
CHAPTER 4 TROUBLESHOOTING
DEVELOPING/CLEANING
SYSTEM ................................. 3-20
A. EP-52 Cartridge ................. 3-20
VI. FIXING SYSTEM ..................... 3-23
A. Fixing Unit ........................ 3-23
VII. PRINTED CIRCUIT BOARDS ... 3-27
A. Engine Controller PCB....... 3-27
B. Paper Size Detection PCB .. 3-28
C. Video Controller PCB......... 3-29
D. Adapter PCB ...................... 3-30
VIII. PAPER FEEDER...................... 3-31
IX. ENVELOPE FEEDER ............... 3-35
X.
DUPLEXING UNIT ................... 3-39
Parts ................................ 4-43
PARTS.................................... 4-56
E. PCBs.................................. 4-64