FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL
05.03.01
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CONTENTS
1. CROSS-SECTIONAL VIEW ............................................................................M-1
2. COPYING PROCESS ......................................................................................M-2
3. DRIVE SYSTEM ..............................................................................................M-4
4. OPERATING SEQUENCE ..............................................................................M-5
5. CPU OVERRUN MONITOR FUNCTION .........................................................M-6
5-1. Processing Performed during Watchdog Function ..................................M-6
6. IMAGE STABILIZATION SYSTEM ..................................................................M-7
7. IMAGING CARTRIDGE (I/C) ...........................................................................M-8
7-1. I/C Drive Mechanism ...............................................................................M-9
7-2. Identification and Life of I/C .....................................................................M-9
8. PC DRUM ........................................................................................................M-10
8-1. Grounding of the PC Drum ......................................................................M-10
9. DRUM CHARGING ..........................................................................................M-11
(1) Ozone Fan .......................................................................................M-12
10. IR SECTION ....................................................................................................M-13
10-1.Construction of the Exposure Section .....................................................M-14
10-2.Image Processing Flow ...........................................................................M-15
10-3.Scanner and 2nd/3rd Mirrors Carriage Moving Mechanism ....................M-16
(1) Scanner Moving Mechanism ...........................................................M-16
(2) 2nd/3rd Mirrors Carriage Moving Mechanism .................................M-16
11. ORIGINAL SIZE DETECTING SYSTEM .........................................................M-17
11-1.Original Size Detecting Operation ...........................................................M-18
11-2.Original Size Detection ............................................................................M-18
11-3.Original Size Detection Timing ................................................................M-19
12. PH SECTION ...................................................................................................M-20
12-1.Laser Emission Timing ............................................................................M-21
13. DEVELOPING UNIT ........................................................................................M-22
13-1.Sleeve/Magnet Roller ..............................................................................M-23
13-2.Developing Bias .......................................................................................M-23
13-3.ATDC Sensor ..........................................................................................M-24
(1) ATDC Sensor Automatic Adjustment ..............................................M-24
(2) Toner Replenishing Control .............................................................M-24
(3) Toner Empty Control (T/C Recovery Mode) ....................................M-25
13-4.Toner Bottle Home Position Detection Mechanism .................................M-26
13-5.Toner Bottle Vibration Mechanism ..........................................................M-26
13-6.Main Hopper Toner Replenishing Mechanism ........................................M-27
13-7.Sub Hopper Toner Replenishing Mechanism ..........................................M-28
13-8.Sub Hopper Toner Empty Detection Control ...........................................M-28
14. PAPER TAKE-UP/FEED SECTION ................................................................M-29
14-1.1st Drawer-in-Position Detection .............................................................M-29
14-2.1st Drawer Paper Empty Detection .........................................................M-30
14-3.1st Drawer Paper Near-Empty Detection ................................................M-30
14-4.1st Drawer Paper Lifting Plate .................................................................M-31
14-5.1st Drawer Paper Size Detection ............................................................M-31
(1) Paper Size Table According to Sensor/Switch Conditions ..............M-32
14-6.Drawer Paper Take-Up Mechanism ........................................................M-33
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