Ricoh FT8982, FT680 Service Manual FT8980
IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJ URY
1. While the machine warms up, it will suddenly start turning to perform the
process control data initializa tio n. Keep hands away from any mechanical
and electrical components during this perio d.
2. Before disassembling or assembling parts of the copier and periph erals,
make sure that the copie r and the secon d sorter power cord is unplugged.
3. The wall outlet should be near the copie r and easily acce ssible .
4. Note that some comp onen ts of the copier, the paper tray un it, and the
2nd sorter are supplied with electrical volta ge even if the main switch is
turned off.
5. If any adjustment or operation check has to be made with exte rior cove rs
off or open while the main switch is turned on, keep hands away from
electrified or mechanically driven components.
6. The inside and the meta l pa rt s of the fusing unit become ext reme ly hot
while the copier is operating. Be careful to avoid touch ing tho se
components with your bare hands.
HEALTH SAFETY CONDITIONS
1. Never operate the copier without the ozone filte rs in sta lled.
2. Always replace the ozo ne filte rs wit h th e specified ones at the specified
intervals.
3. Toner and developer a re non-toxic, but if you get either of them in your
eyes by accident, it may cause tempo rary eye discomf ort. Try to remove
with eye drops or flush with water as f irst aid . If unsu ccessful, get medical
attention .
OBSERVANCE OF ELECTRICAL SAFETY S TANDARDS
1. The copier and its peripherals must be inst alle d and main ta ine d by a
customer service represent at ive who has completed the training course
on those models.
2. The RAM board on the main contro l board ha s a lithium battery which can
explode if replaced incorrectly. Replace the battery only with an ide nt ical
one. The manufacture r recomme nd s replacing the entire RAM board. Do
not recharge or burn this battery. Used batteries must be handled in
accordance with local regulations.
SAFETY AND ECOLOGICAL NOTES FOR DI S POSAL
1. Do not incinerate the ton er cartridge or the used tone r. Ton er du st may
ignite suddenly when exposed to open flame.
2. Dispose of used toner, developer, and photoconductors according to local
regulations.
3. Dispose of replaced part s in accord an ce with local regulations.
4. When keeping used lithium batteries in order to disp ose of them later, do
not put more than 100 batteries per sealed box. Storing larger numb ers or
not sealing them apart may lead to chemica l re act ions and heat build-up.
Table of Contents
This manual describes new items for th e Thund erb ird II type X (A170).
Please refer to the Thunderbird II type Y (A171) manual for the descriptions
marked with "*" in the page column.
1. OVERALL MACHINE INFORMATION
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
2. COPY PROCESSES AROUND THE DRUM . . . . . . . . . . . . . . . . . . . . *
3. MECHANICAL COMPONENT LAYOUT . . . . . . . . . . . . . . . . . . . . . . . *
3.1 COPIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
3.2 RDH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4. ELECTRICAL COMPONENT DESCRIPTIONS. . . . . . . . . . . . . . . . . . *
4.1 COPIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
4.1.1 Copier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4.2 RDH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
5. DRIVE LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
6. PAPER PATH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
2. DETAILED SECTION DE SCRIPTIONS
1. PROCESS CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
2. DRUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
3. DRUM CHARGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
4. ERASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
5. OPTICS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
6. DEVELOPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
6.4.3 Bias for the ID Sensor Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
7. TONER DENSITY DETECTION AND SUPPLY. . . . . . . . . . . . . . . . . . *
8. IMAGE TRANSFER AND PAPER SEPARATION. . . . . . . . . . . . . . . . *
9. CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
10. QUENCHING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
11. PAPER FEE D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
12. TRANSPORT UNIT AND REGISTRATION . . . . . . . . . . . . . . . . . . . . *
13. FUSING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
14. INVERTER AND PAPER EXIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
15. DUPLEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
15.8 DUPLEX END FENCE AND 2ND PAPER END SENSOR. . . . . . . . . . . . . . . 2-2
16. RDH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
16.1 OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
16.1.1 No Inversion Original Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
16.1.2 Inversion Original Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
16.1.3 Sided Original 2 Sided Copy Mode (one set of copies) . . . . . . . . . . . . . 2-7
16.1.4 Two or More copies (alternate paper feed). . . . . . . . . . . . . . . . . . . . . . . 2-7
16.1.5 2 Sided Original 2 Sided Copy Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
16.1.6 2 Sided Original 1 Sided Copy Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
16.2 ORIGINAL SET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
16.2.1 Stack Feed Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
16.2.2 Single Feed Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
16.3 ORIGINAL FEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
16.3.1 Original Separation/Feed (Original Stack Mode). . . . . . . . . . . . . . . . . . 2-15
16.4 SINGLE FEED MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
16.4.1 Registration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
16.4.2 Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
16.5 DRIVE MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
16.5.1 Feed Motor Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
16.5.2 Belt Drive Motor Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
16.5.3 Inverter Motor Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
16.6 ORIGINAL POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
16.7 CFF MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
17. OPERATION UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
18. MOVING ORIGINAL SCAN AND BY-PASS FEED TABLE . . . . . . . *
19. ENERGY START COMPLIANT MACHINES
(NORTH AMERICAN VERSION ONLY) . . . . . . . . . . . . . . . . . . . 2-24
3. INSTALLATION
1. INSTALLATION REQUIREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.1 ENVIRONMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.2 MACHINE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.3 MINIMUM SPACE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
1.4 POWER REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
2. ACCESSORY CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3. INSTALLATION PROCEDURE (COPIER). . . . . . . . . . . . . . . . . . . . 3-5
3.1 A3/11" x 17" COUNTER INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.2 KEY COUNTER HOLDER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
4. INSTALLATION PROCEDURE (LCT) . . . . . . . . . . . . . . . . . . . . . . 3-14
4. SERVICE TABLES
1. SERVICE REMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
1.12 RDH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
1.13 FINISHER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
2. SERVICE PROGRAM MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
2.1 SERVICE PROGRAM MODE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
2.1.1 To Access SP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
2.1.2 To Exit SP Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
2.1.3 Change the Menu Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
2.2 SP MODE FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
2.3 SP MODE INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
3. DIP SWITCH TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
3.3 RDH MAIN CONTROL PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
3.4 RDH LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38
4. PREVENTIVE MAINTENANCE SCHEDULE. . . . . . . . . . . . . . . . . 4-39
4.1 PM TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
4.2 REGULAR PM SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42
5. REPLACEMENT AND ADJUSTMENT
1. EXTERIOR AND INNER COVERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . *
2. OPTICS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
3. DEVELOPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
4. CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
5. AROUND THE DRUM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
6. LCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
7. 1ST, 2ND, AND 3RD TRAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
8. REGISTRATION AND TRANSPORT. . . . . . . . . . . . . . . . . . . . . . . . . . *
9. IMAGE FUSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
9.3 OIL SUPPLY ROLLER REPLACEMENT (European Version Only). . . . . . . . . 5-1
10. INVERTER & PAPER EXIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
11. DUPLEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
12. ARDF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
13. RDH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
13.1 TRANSPORT BELT REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
13.2 FEED-IN BELT REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
13.3 SIDE-TO-SIDE REGISRATION ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . 5-4
13.4 ORIGINAL HEIGHT SENSOR POSITION ADJUSTMENT . . . . . . . . . . . . . . 5-5
13.5 RDH UNIT REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
13.6 RDH LEVELING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
13.7 SINGLE FEED TABLE REMOVAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
13.8 SINGLE FEED SET SENSOR AND REGISTRATION SENSOR
REPLACEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
13.9 VACUUM SHUTTER SOLENOID ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 5-11
13.10 EXIT ROLLER SOLENOID ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . 5-12
13.11 INVERTER BLOWER MOTOR BELT TENSION ADJUSTMENT . . . . . . . 5-13
13.12 BELT DRIVE, FEED, AND INVERTER BLOWER MOTOR TENSION
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
13.13 BELT TENSION ADJUSTMENT FOR BELT DRIVE MOTOR . . . . . . . . . . 5-15
14. OTHERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
6. TROUBLESHOOTING
1. SYSTEM ERROR AND SERVICE CALL CONDITIONS . . . . . . . . . 6-1
2. BLOWN FUSE TABLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
FINISHER
1. OVERALL MACHINE INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 MECHANICAL COMPONENT LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 ELECTRICAL COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 DRIVE LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 BASIC OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2. SECTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 PAPER DELIVERY SWITCHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 SHIFT TRAY UP/DOWN MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 SHIFT TRAY SIDE TO SIDE SHIFT MECHANISM . . . . . . . . . . . . . . . . . . . . . . 10
2.4 STAPLE UNIT PAPER POSITIONING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5 JOGGER MOVEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6 STAPLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7 STAPLER UNIT SIDE TO SIDE MOVEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.8 FEED-OUT TO SHIFT TRAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1 ACCESSORY CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2 INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4. SERVICE TABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 TEST POINT TABLE (Main Board). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2 FUSE TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3 DIP SW TABLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3.1 Motor Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.4 Free Run Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.5 PM TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.6 LUBRICATION POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.6.1 Shift Tray Positioning Roller Arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.6.2 Jogger/Staple Unit Shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.6.3 Shift Tray Drive Gears. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5. REPLACEMENT AND ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . 25
5.1 EXTERIOR REMOVAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2 STAPLE UNIT REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3 SHIFT TRAY UNIT REMOVAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.4 JOGGER UNIT REMOVAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.5 ALIGNMENT BRUSH ROLLER REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . 29
5.6 JOGGER DRIVE BELT REPLACEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.7 EXIT ROLLER REPLACEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.8 SHIFT TRAY POSITIONING ROLLER REPLACEMENT. . . . . . . . . . . . . . . . . . 32
5.9 SENSOR REPLACEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.10 BELT TENSION ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SECTION 1
OVERALL MACHINE
INFORMATION
31 January 1996 SPECIFICATIONS
1. SPECIFICATIONS
Main Copier
Copier
Configuration: Console
Copy Process: Dry Electrostatic Transfer S yste m
Originals: Sheet/Book
Original Size: Maximum: 11" x 17", A3
Copy Paper Size: Maximum: 1st and 2nd tray 11" x 17", A3
3rd tray 81/2" x 14", B4
Minimum: 51/2" x 81/2", A5
Copy Paper Weight: Standard Copying: 14 ~ 42 lb, 52 ~ 157 g/m
Duplex Copying: 17 ~ 28 lb, 64 ~ 105 g/m
2
2
Warm Up Time: Within 8.0 minutes (room temp. 68°F, 20°C)
First Copy Time: 4.7 seconds (81/2" x 11", A4, feed from 3rd tray)
Copying Speed: 80 copies/minute (81/2" x 11", A4)
60 copies/minute (11" x 17", A3)
Optional Equipment: Finisher (A593)
Large Capacity Tray (A592)
Key Counter Bracket Set (A59 8 - 02)
Key Counter (Procured locally)
Key Counter Holder (Procured loca lly)
Receiving Tray (spare part)
Guidance ROM Kit (A603)
Reproduction Ratios: See the following table:
LT/DLT version A4/A3 version
200% 200%
Enlargement
Full Size 100% 100%
Reduction
155% 141%
129% 122%
121% 115%
93% 93%
77% 82%
74% 71%
65% 65%
50% 50%
1-1
SPECIFICATIONS 31 January 1996
Zoom: 50 ~ 200%
Toner Replenishment : Cartridge exchange (1, 50 0 g)
Paper Feed: 1st tray (500 sheets)
2nd tray (500 sheets)
3rd tray (1,700 Sheets)
Power Source: 240 V, 20 A or more (LT/DLT version)
220, 230, 240 V, 13 A or more (A4 /A 3 version)
Power Consumption:
LT/DLT version
Copier only Full system*
Warm up less than 2.10 kW less than 2.15 kW
Stand-by less than 0.50 kW less than 0.55 kW
Copying less than 2.50 kW less than 2.60 kW
Maximum less than 2.60 kW less than 2.70 kW
* Full system: Copier with RDH, large capacity tray, and a finisher.
A4/A3 version (at 230 V)
Copier only Full system*
Warm up less than 2.10 kW less than 2.15 kW
Stand-by less than 0.50 kW less than 0.55 kW
Copying less than 2.50 kW less than 2.60 kW
Maximum less than 2.60 kW less than 2.70 kW
* Full system: Copier with RDH, large capacity tray, and a finisher.
Dimensions:
Width Depth Height
Copier with RDH and copy tray 1,215 mm
47.8"
Copier with RDH, large capacity tray, and a
finisher
2,110 mm
83.1"
760 mm
29.9"
760 mm
29.9"
Weight:
1,445 mm
56.9"
1,445 mm
56.9"
A4\A3 version
Copier with RDH 378 kg
835.4 lb
Copier with RDH, large capacity tray, and a
finisher
1-2
469 kg
1036.5 lb
31 January 1996 SPECIFICATIONS
Noise Emission:
Sound pressure level
(The measurements are made according to ISO 7779 at the operator position.)
Copier only Full system*
Stand-by less than 43 dB (A) less than 43 dB (A)
Copying
* Full system: Copier with RDH, large capacity tray, and a finisher.
less than 69 dB (A)
(average)
less than 75 dB (A)
(average)
Sound power level (The measurements are made according to ISO 7779.)
Copier only Full system*
Stand-by less than 57 dB (A) less than 57 dB (A)
Copying less than 75 dB (A) less than 83 dB (A)
* Full system: Copier with RDH, large capacity tray, and a finisher.
1-3
SPECIFICATIONS 31 January 1996
Recycling Document Handler
Original Size:
Stack feed mode Single feed mode CFF mode
Maximum 11" x 17", A3 11" x 17", A3 11" x 9
8
Minimum 8" x 10
1/2", A4 51/2" x 81/2", A5
11" x 14
1/2"
1/2" x 12"
7/8"
Original Weight:
Stack feed mode Single feed mode CFF mode
Maximum 28 lb, 105 g/m
Minimum 17 lb, 64 g/m
2
2
43 lb, 165 g/m
14 lb, 52 g/m
2
2
20 lb, 75 g/m
17 lb, 64 g/m
2
2
Number of originals to be set:
RDH mode
Size
Weight
64 g/m
17 lb
2
75.2 g/m
20 lb
2
80 g/m
2
21 lb
A4
8" x 10
1/2" x 11"
8
8
1/2" x 13"
1/2" x 14"
8
B4
10" x 14"
A3
11" x 17"
1/2"
100 sheets 100 sheets 100 sheets 80 sheets
100 sheets 90 sheets 80 sheets 60 sheets
80 sheets 70 sheets 70 sheets 50 sheets
60 sheets 50 sheets 50 sheets 40 sheets
SADF mode: 1 sheet
Number of Recycles: Maximum: 60 times
CFF Original Stack Height:Maximum: 76 mm
Original Set: First sheet on top, stack face down
104.7 g/m
28 lb
2
1-4
31 January 1996 MECHANICAL COMPONENT LAYOUT
3. MECHANICAL COMPONENT LAYOUT
3.2 RDH
1
15
2
14 13
3456
12
11
10
7
9
A170V500.img
8
1. Inverter Roller
2. Inverter Exit Roller
3. Air Knife Nozzle
4. Exit Roller
5. Original Guide
6. Feed-in Belt
7. Original Stopper
8. Right Turn Roller
9. Belt Drive Roller
10. Transpo rt Belt
11. Transport Rollers
12. Original Feed Roller
13. Inverter Entrance Roller
14. Single Feed Exit Gat e
15. Inverter Middle Roller
1-5
ELECTRICAL COMPONENT DESCRIPTIONS 31 January 1996
4. ELECTRICAL COMPONENT DESCRIPTIONS
Refer to the electrical compon en t layo ut on the reverse side of the Point to
Point (Water proof paper) index numbers.
4.1.1 Copier
Name Function Index No.
Sensors
2nd Paper End - Duplex Detects whether any paper is left in the duplex unit or
not.
4.2 RDH
Name Function Index No.
Motors
Feed Drives the feed and transport rollers. 3
Belt Drive Drives the transport belt. 7
Inverter Drives the inverter and exit rollers. 34
Blower Supplies air to the air knife and draws air from the
vacuum section.
Separator Drives the original separator. 21
153
5
Sensors
Original Set Detects if the original is set on the document handler. 31
Entrance Detects the original leading edge and de-energizes
the feed belt drive clutch.
1st Transport Detects jams in the transport section. 16
2nd Transport Detects the original leading edge and lowers the
original feed motor speed.
Registration Detects the original trailing edge for the original stop
position calculation.
Inverter Entrance Detects jams in the transport belt section. 24
1st Inverter Detects the original trailing edge and reverses the
inverter drive motor rotation.
2nd Inverter Detects the original leading edge and energizes exit
roller release solenoid.
Exit Detects the original leading edge and lowers the
inverter drive motor speed.
Single Feed Set Detects the leading edge of the original in the single
feed table and turns the original feed motor.
Single Feed Exit Detects jams in single feed mode. 25
Lift Detects if the RDH is open. 2
33
15
12
29
30
32
13
1-6
31 January 1996 ELECTRICAL COMPONENT DESCRIPTIONS
Name Function Index No.
CFF Detects if the computer form is set in the CFF guide.
Counts the holes lined up to the computer form.
Original Length Detects if the original stopper is set for 8
1/2" position. 19
9
Original Height Detects the original height on the RDH. 20
Separator H.P. Detects if the original separator is in the home
position.
22
Separator Detects if the last original of the original stack is fed. 23
Inverter Unit Cover
(Switch)
Original Width
(Potentiometer)
Single Feed Original
Width (Potentiometer)
Original Incorrect
Positioning
Detect if the inverter unit cover is opened.
Detects the original width in the stack feed mode.
Detects the original width in the single feed mode.
Detects when an original has been placed incorrectly
on the RDH original table.
27
17
14
35
Solenoids
Vacuum Shutter Closes the vacuum shutter. 4
Single Feed Gate Lowers the single feed gate. 8
Single Feed Exit Lifts the single feed exit gate. 26
Exit Roller Releases the exit driven rollers from the exit drive
rollers.
28
Clutches
Feed Belt Drive Transmits the original feed motor drive to the feed
belt rollers.
10
Feed Belt Brake Stops the feed belt rotation. 11
PCBs
Main Control Controls overall RDH operation. 6
Blower Motor Control Controls the vacuum motor operation. 1
Indicator Indicates the single feed mode indicators. 18
1-7
SECTION 2
DETAILED SECTION
DESCRIPTIONS
31 January 1996 DEVELOPMENT
6. DEVELOPMENT
6.4.3 Bias for the ID Sensor Pattern
ID Sensor
Full Size
Enlargement
Reduction
VL Pattern
ID Sensor Pattern
Exposure Glass
A170D500.wmf
Outside
The ID sensor pattern canno t alwa ys be use d for t he ima ge den sity dete ctio n
due to the position of th e ID sen sor an d bo th the positioning and size of the
ID sensor pattern on the dru m.
The outside of the exposure glass (no light) is exposed on th e drum and used
as the ID sensor pattern in redu ctio n mode.
No light: Reproduction ratio < 77%
ID pattern: Reproduction ratio ≥ 77%
The ID sensor bias (VBP) is determined using the following base voltage in
every case.
VBP = –360 + V0
V01 and V02, which are explained in the process control section, are used for
the VBP calculation as the V0 (drum potential af te r t he ch arg e coro na ) value.
The VBP can be changed by the SP mode (Toner Densit y Correct ion).
The following compensation will be applied to the above VBP.
Setting L N H VH
(V) –60 0 +60 +120
Default: H (+60 V)
2-1
[A]
[D]
DUPLEX 31 January 1996
15. DUPLEX
15.8 DUPLEX END FENCE AND 2ND PAPER END SENSOR
[B]
[C]
[A]
[E]
After the duplex paper e nd senso r [ A] det ect s t hat there is no paper in the
paper feed section, th e du ple x end fen ce [B] moves the stack copy to the
paper feed section [C] in th e du ple x unit in the alternate paper fe ed mode .
The 2nd paper end sensor [D] detect s whet he r or not any sta ck co py is left in
the stack position [E] or not after duplex paper end sensor de te cts that there
is no paper in the paper feed section.
[C]
A170D529.wmf
2-2
31 January 1996 DUPLEX
A170D527.wmf
A170D530.wmf
2-3
[J]
RDH 31 January 1996
16. RDH
16.1 OVERVIEW
16.1.1 No Inversion Original Cycle
[B]
[E]
When the start key is pressed, the blowe r mo to r start to rotate. It supplies air
to the air knife and draws air from the vacuum section. Sheets are separated
at the leading edge [A] of the paper sta ck. The air comes from the nozzle [B]
and the bottom sheet of th e stack paper is held against the fee d-in belts [C]
by air suction [D]. The feed moto r d rives th e feed drive [E], transport [F], and
right turn [G] rollers. The botto m sh eet of the paper is delivered through the
feed drive, transport, right turn rollers to the registration section [H] and is
stopped. To stop the original shee t at the prop er po sitio n in th e reg istra tio n
section, the feed mo to r ro ta tion speed is reduced by half when the 2nd
transport sensor [I] detects the leading edge of the original. The belt drive
motor then starts to rotate the tra nsp ort belt [J] to direct the sheet of paper
onto exposure glass. At the same time, the next original is fed.
[A]
[D]
[F]
[C]
[H]
[I]
[G]
A170D501.img
2-4
31 January 1996 RDH
[H]
[G]
[F]
[D]
[A]
[E]
[B]
[C]
A170D502.img
At the appropriate time, the transport belt delivers the original on the
exposure glass to the inverter section [A], and the following origin al is mo ved
onto the exposure glass, and the 3rd sheet of original is fed. The 1st original
is passed into the inverte r section through the inverter en tra nce [B], inverter
middle [C], and inverter [D] rolle rs u nt il the trailin g edge of th e orig inal is
detected by the 1st in vert er sensor [E]. The inverter mid dle [C] an d inverter
[D] rollers then rotate in the opposite direction. The inverter exit rollers [F]
rotates only in the paper exit direction . However, the contact between the
inverter exit roller [F] and inverter exit driven roller [G] is released whe n the
2nd inverter sensor [H] is activa te d by th e original. This way, the inverter exit
roller does not interfere with the original switch back cycle while the inverter
middle and inverter rollers begin reverse rotation. The original is delivered
through the inverter entrance [B] and inverter exit [F] rollers to the orig ina l
table. This continues until all o rigin als ha ve been retu rne d to the origin al
table. The originals are stacked on the original table where they wait fo r t he
next copy cycle.
2-5
RDH 31 January 1996
16.1.2 Inversion Original Cycle
[A]
[B]
[B]
[C]
A170D503.img
Until the original reaches to th e inve rte r sectio n [A], the sequence is the same
as for no inversion original cycle. The inve rte r rollers [B ] rotate in the original
exit direction. The original is now inve rted and exited to the original table [C].
This continues until all originals have be en invert ed . The inverted originals
are then fed from the origin al table for copying of the reve rse side. The
sequence is the same as for th e front side copying. The origin als ret urn and
are stacked on the original table where they wait for the next copy cycle.
2-6
[C]
31 January 1996 RDH
16.1.3 1 Sided Original 2 Sided Copy Mode (one set of copies)
[A]
[B]
A170D504.img
A170D505.img
No inversion original cycle is used for this mo de.
All the originals [A] are fed starting from the botto m origin al she et . First, odd
numbered originals (in case of the illust ration: 1st and 3rd originals) are
copied and even numbered orig ina ls copy is skip ped. The cop ied pap er [B ] is
stacked in the duplex tray. The origin als are re tu rn to the origin al ta ble, and
the original feed is then repeated. This time the odd numbered origin als cop y
is skipped and even numbered originals are copie d on the reverse sid e of the
copy paper [C], which is fed from the duplex tray.
16.1.4 Two or More Copies (alternate paper feed)
An alternate paper fe ed system can be used when the RDH and Finishe r are
installed.
This alternate paper feed system is a relatively efficient way to make two or
more two-sided copies from two or more one-sided origin als whe n the cop ier
is equipped with an RDH.
No inversion original cycle is used for this mo de.
When making two-sided copies, first of all, the odd pages of the originals
placed on the RDH are copied on paper from th e paper t ray. They are then
stored in the duplex tray. Then the orig inals are recirculated, and the even
pages of the originals are copied on the sheets store d in th e du plex tray.
When making two or more sets of copies, the odd pages of the origin als are
copied and the copies are sto red in the duplex tray. Then all the pa ges o f th e
recirculated original are copie d. Odd pages are copied onto new copy paper.
Even pages are copied onto paper from th e duple x t ray. Finally th e eve n
pages of the recirculated originals are copie d on the sheets stored in the
duplex tray. See the next page for example.
This system has many benefits.
2-7
RDH 31 January 1996
– Operation –
Example:
Two sets of two-sided copies are made from four one-sid ed originals.
1) When the start key is pressed, th e 1st and 3rd orig inals are scanned,
then the copies are stacked in the duplex tray. The 2nd and 4th originals
have only passed over the expo sure glass [Fig 1].
2) The 1st original is scanned. The copy is stacked in the duplex tray.
Soon after this, the bo tt om copy in the duplex tray is fed [Fig 2].
3) The 2nd original is scanned. The copy which has been fed rea che s the
drum for copying the 2nd original, and is then fed out onto the copy tray
[Fig 3].
4) The 3rd original is scanned, and th e cop y is stacked in the duplex tray.
Soon after this, the bo tt om copy in the duplex tray is fed [Fig 4].
5) The 4th original is scanne d. The copy which has been fed reaches the
drum for copying the 4th original, and is then fed out onto the copy tray
[Fig 5]. The stack in the duplex un it is moved to the duplex paper feed
section by the duplex end fence.
6) The 1st original is fed into the scanner and is fed out from the RDH
without exposing. After this, the bottom cop y in the dup lex tra y is fed in
preparation for th e reve rse side copying [Fig 6].
7) The 2nd original is scanned. The copy which has been fed rea che s the
drum for copying the 2nd original, and is then fed out onto the copy tray
[Fig 6].
8) The 3rd original passes over the expo sure glass. Aft er this, the bottom
copy in the duplex tray is fed in preparat ion for the reverse side copying
[Fig 7].
9) The 4th original is scanne d, the copy which has been fed reaches the
drum for copying the 4th original, and is then fed out onto the copy tray
[Fig 7].
2-8
31 January 1996 RDH
4
3
2
1
3
1
C
B
3
1
1
1
3
1
A
Fig 3Fig 2Fig 1
3
3
1
3
1
3
3
1
2
1
Fig 7
Fig 6Fig 5Fig 4
A: Paper Tray
B: Duplex Unit
C: RDH
3
1
m
: Recirculated
l
: 3rd recirculated
: Without exposing
(for RDH)
A170D506.wmf
2-9
RDH 31 January 1996
16.1.5 2 Sided Original 2 Sided Copy Mode
[A]
[B]
A170D507.img
[C]
[D]
A170D508.img
Inversion original cycle is used for this mode. All the origin als [A ] are fed
starting from the bottom o rigin al she et. First, the front side of the originals are
copied. The copied paper [ B] is stacked in the duplex tray. The originals [C]
are inverted and return to the origin al ta ble . The origin al fe ed is then
repeated. This time the reverse side of the originals are copied on the
reverse side of the copy paper [D], which is fed from the duplex tray.
2-10
[E]
31 January 1996 RDH
16.1.6 2 Sided Original 1 Sided Copy Mode
[A]
[B]
A170D507.img
[D]
[C]
A170D509.img
Inversion original cycle is used for this mode. All the origin als [A ] are fed
starting rom the bottom original sheet. First ly, the fro nt sid e of all the originals
are copied and the cop ied pap er [B ] is st acke d in the duplex tray. The
originals [C] are inverted and re turn to the origin al ta ble . The origin al fe ed is
then repeated. This time, the bott om cop y sh eet is fed from th e duple x tr ay
and exited from the copier with ou t copying [C]. The reverse side of th e
bottom original sheet [D] is then copie d to paper [E ], which is fed from the
paper tray, and the copy is exited from the copie r [E] . This cop y se quen ce
exiting from the duplex tray followed by the paper tray is alte rna te ly repe ated .
2-11
RDH 31 January 1996
16.2 ORIGINAL SET
16.2.1 Stack Feed Mode
[D]
[B]
[A]
[D]
[E]
[G]
[J]
[C]
[I]
[H]
A170D510.img
[K]
1. Original set detection
A170D528.wmf
The originals are detected by the original set sensor [A] when they are
stacked on the original t ab le. If the original incorrect positio nin g sensor [B]
detects originals placed inco rrectly on the RDH original table, a messa ge is
displayed advising the user to set th e originals at the correct position.
2. Size detection
The original width is detected by the origin al width sensor [B] under the front
original guide [D]. Movin g the guide changes the value of th e sen sor. (The
sensor is a potentiometer.) Th e fro nt origin al gu ide and rear orig inal guide [E]
are moved by the racks [F] and pin ion [G] at the same time. The act ua to r [ H]
of the original stopper activat es th e original length sensor [I]
(photo-interrupte r) t o dete ct if the original stopper is set for the 81/2 inch
position. LG (81/2" x 14" = 216 x 356 mm) or B4 (257 x 364 mm) size is
distinguished by the combination of the origina l leng th se nso r (a ctiva ted or
not) and the value of the origin al widt h sensor. This is because the LG and
B4 widths are very close.
The original guides are stopped at the pape r size posit ion (A 4 for EU/LT, LG
for USA). They click into position when the roller [J] on the lock arm dro ps
into the semicircular stopper [K].
2-12
[C]
31 January 1996 RDH
[B]
[E]
[E]
[A]
[D]
[F]
[E]
A170D511.img
A170D512.img
3. Original separator
The original stack which has been fed and return ed to the orig inal table, and
the original stack which has no t been fed yet, are separated by the original
separator [A] mechanism.
When the start key is pressed, the sepa rator motor [B] rotates un til th e
original separator act ua to r [ C] act ivates the separator home position sensor
[D]. The original separato r is set on the original top sheet. The originals which
are fed and returned to the origin al table are stacked on the original
separator. When the last original (to p sheet under the orig ina l sepa rat or) is
fed from the original table, the orig inal separator drops and activates th e
separator sensor [E].
If the next copy cycle continues, th e sep ara to r moto r rota te s and the origin al
separator is set on the original top sheet ag ain aft er th e tra iling edge of the
last original sheet passe s thro ug h the exit sensor [F].
2-13
Loading...