Royal Copystar Ri 4230, Service Manual, Page: 23 / 602

1-1-9
2A3/4
CONTENTS
1-3 Mechanical Construction
1-3-1 Parts names and their functions ......................................................... 1-3-1
1-3-2 Machine cross section ........................................................................ 1-3-4
1-3-3 Drive system ....................................................................................... 1-3-5
1-3-4 Mechanical construction ..................................................................... 1-3-8
(1) Paper feed section ...................................................................... 1-3-8
(1-1) Paper feed from the drawers ............................................ 1-3-8
(1-2) Paper feed from the bypass table .................................... 1-3-13
(2) Main charging section ................................................................ 1-3-16
(3) Optical section ............................................................................ 1-3-19
Original scanning ........................................................................ 1-3-20
Image printing ............................................................................ 1-3-22
(4) Developing section .................................................................... 1-3-25
Formation of magnetic brush ..................................................... 1-3-27
Toner density control ................................................................. 1-3-29
Correcting toner feed start level ................................................ 1-3-31
Toner level detection ................................................................. 1-3-34
Toner hopper lockup detection .................................................. 1-3-35
(5) Transfer and separation section ................................................ 1-3-36
Charger wire cleaning ............................................................... 1-3-38
(6) Cleaning section ........................................................................ 1-3-40
(7) Charge erasing section ............................................................. 1-3-41
(8) Fixing section ............................................................................ 1-3-43
Heating the heat roller and detecting temperature .................... 1-3-45
Fixing temperature control ......................................................... 1-3-46
Paper separation ....................................................................... 1-3-48
(9) Feedshift and eject section ........................................................ 1-3-49
(10) Duplex section ........................................................................... 1-3-51
Duplex copying operation timing ............................................... 1-3-54
(11) SRDF ......................................................................................... 1-3-57
(11-1) Original feed section ....................................................... 1-3-57
Original feed timing ......................................................... 1-3-59
(11-2) Original switchback section ............................................ 1-3-60
Operation of original switchback ..................................... 1-3-62
(11-3) Original conveying section .............................................. 1-3-63
Original switchback/conveying timing ............................. 1-3-65
(12) Large paper deck (42 ppm: optional/52 ppm: standard) ........... 1-3-67
(12-1) Right cassette primary paper feed .................................. 1-3-69
(12-2) Left cassette primary paper feed .................................... 1-3-72
(12-3) Raising and lowering the lifts .......................................... 1-3-74
(12-4) Detecting the paper level ................................................ 1-3-76