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SERVICE MANUAL PLAIN PAPER COPIER
2060/2860/70
AUTOMATIC DUPLEXING UNIT MD-5002
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Copyright TOSHIBA CORPORATION 1995 ALL RIGHTS RESERVED
GENERAL PRECAUTIONS REGARDING THE INSTALLATION AND SERVICE FOR THE COPIER 2060, 2860/70 AND THE AUTOMATIC DUPLEXING UNIT MD-5002
1. Transportation/Installation · When transporting/installing the copier, use two persons and be sure to use the positions as indicated below. The copier is fairly heavy and weighs approximately 73 kg (161 lb), therefore pay full attention when handling it. (2870: 84 kg)
4 portions
2. Installation · Be sure to use a dedicated outlet with AC 115V/15A (220V, 240V/10A) or more for its power source. · The copier must be grounded for safety. Never ground it to a gas pipe or a water pipe. · Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and direct sunlight. · Also provide proper ventilation as the copier emits a slight amount of ozone. · To insure adequate working space for the copying operation, keep a minimum clearance of 80 cm (32") on the left, 80 cm (32") on the right and 10 cm (4") in the rear. 3. Service of Machines · Basically, be sure to turn the main switch off and unplug the power cord during service. · Be sure not to touch high-temperature sections such as the exposure lamp, the fuser unit, the damp heater and their periphery. · Be sure not to touch high-voltage sections such as the chargers and the high-voltage transformer. · Be sure not to touch rotating/operating sections such as gears, belts, pulleys, etc. · When servicing the machines with the main switch turned on, be sure not to touch live sections such as the lamp terminal, etc. · Use suitable measuring instruments and tools.
4. Main Service Parts for Safety · The breaker, door switch, fuse, thermostat, thermofuse, thermistor, etc. are particularly important for safety. Be sure to handle/install them properly. 5. Notice Labels · Be sure to check the rating plate and the cautionary labels such as "Unplug the power cord during service", "Hot area" etc. to see if there is any dirt on their surface or if they are properly stuck to the copier during servicing. 6. Disposition of Consumable Parts/Packing Materials · Regarding the recovery and disposal of the copier, supplies, consumable parts and packing materials, it is recommended to follow the relevant local regulations or rules. 7. When parts are disassembled, reassembly is basically the reverse of disassembly unless otherwise noted in this manual or other related documents. Be careful not to reassemble small parts such as screws, washers, pins, E-rings, toothed washers in the wrong places. 8. Basically, the machine should not be operated with any parts removed or disassembled. 9. Precautions Against Static Electricity · The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband, because the ICs on it may become damaged due to static electricity.
1.
SPECIFICATIONS · ACCESSORIES · OPTIONS · SUPPLIES
1.1 Specifications
Copy process Type Exposure Type Acceptable originals Kind Indirect electrophotographic process (dry) Desk top (console when the pedestal is used) Slit exposure with fixed table Sheets, books, and 3-dimensional objects. When the document feeder is used: Sheet originals only (60 g/m2~90 g/m2) (16 lb.~24 lb.) Maximum size Copy paper Cassette Size Thickness (Weight) Special paper _ Duplexing Manual A3~A6-R 64~130 (17~34) _ OHP film etc. Adjustable to Unfixed, Arbitary sizes Unit: g/m2 (Unit: lb.) Note A3~A5-R 64~80 (17~22) A3 (Ledger)
(Ledger~Statement-R)
Dec. 1996 © TOSHIBA
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2060, 2860/70 SPECIFICATIONS
Copy speed
Paper size A4, B5, A5-R LT, ST-R A4-R, B5-R LT-R B4, FOLIO LG, Computer A3 LD Reduction/ Enlargement Cassette/manual 2060 2860 20 28 20 20 19 15 26 22 19 15 LCF 2060 20 -- -- -- 15 2860 28 -- -- -- 15 CPM
Manual feeding represents the value when the size is set. System copy speed (BLI format) Mode OriginalCopy 1 1 Number of copies 1 set 3 set 5 set 1 2 1 set 3 set 5 set 2 2 1 set 3 set 5 set 2 1 1 set 3 set 5 set 2060 19 20 20 10 15 17 8 14 16 16 19 19 CPM 2860 24 27 28 10 18 21 8 16 19 16 23 25
*Ten originals (A4) are set in the ADF. This includes the first copy time. First copy Warm-up time Multiple copying Reproduction ratio Actual ratio 100% or 101% (Setting mode) Zoom ratios 50~200% (Multiple reduction and enlargement in 1% steps) Approx. 4.0 sec. (Actual-size A4 or Letter from upper cassette) Approx. 80 sec. 1~999, keyboard entry
2060, 2860/70 SPECIFICATIONS
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Dec. 1996 © TOSHIBA
Paper supply
Cassette or sheet-bypass feeding Cassette: 600 sheets Sheet-bypass feeding: 50 sheets
Toner supply Exposure Weight Power source
Automatic density detection and replenishment Toner cartridge replacement Automatic control and manually selectable (9 steps) Copier: 73 kg (with 2 cassettes and the platen cover), ADU: 10 kg For the U.S.A. and Canada 123 For Europe 115 V ~ 60 Hz, 12A 220 V ~ 50/60 Hz, 8A 240 V ~ 50 Hz, 8A
Power consumption Counter
1.5 kW (115 V), 1.7 kW (220 V/240 V) 6-digit total counter
Machine size
598mm
640m
m
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2060, 2860/70 SPECIFICATIONS
540mm
1.2 Accessories
Copy receiving tray Operator's manual Set-up report Drum Developer Toner : : : : : : 1 pc. 1 pc. 1 pc. 1 pc. 1 bottle 1 pc.
*Accessories vary according to the destination.
1.3 Options
Automatic duplexing unit: ADU Automatic document feeder: ADF Paper feed pedestal: PFP Paper feed unit Large capacity feeder: LCF Sorter MD-5002 MR-3006 (RADF), MR-2008 (ADF) KD-1003 (1 cassette), KD-2009 (2 cassettes) MY-1006 MP-1501 MG-1003A (10 bins) MG-1004 (10 bins staple) MG-2009 (20 bins) MG-2010 (20 bins staple) Key copy counter MU-8/MU-10 (6 digit)
*Options vary according to the destination.
1.4 Supplies
Drum Developer Toner OD-2060 ZD-2060 ZT-2060
2060, 2860/70 SPECIFICATIONS
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Dec. 1996 © TOSHIBA
2.
2.1.1
OUTLINE OF THE MACHINE
Sectional view
2.1 Sectional Views and Electrical Parts Location Diagram
[A] Front view
(This diagram includes an installed ADU. Refer to Chapter 13 concerning the ADU.)
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2060, 2860/70 GENERAL
No. Carriage 1 Mirror 1 Reflector
Name
No. Cassette
Name
Manual feed separation pad Manual feed roller Manual pickup roller Cassette separation roller Cassette feed roller Cassette pickup roller Upper transport roller Manual feed switch (S6) Paper guide Lower transport roller Aligning switch (S8) Aligning roller (U) Aligning roller (L) Thermistor-1 (THMS1) Thermostat (THERMO) Heater lamp Heat roller (upper side) Pressure roller (lower side) Separation claw (for heat roller) Felt roller Heat roller cleaning blade Fuser exit roller Scraper Fuser cover Paper stop switch-1 (S7) Paper stop switch-2 (S16) Paper-empty switch-2 (S14) Cassette tray Cassette size switch-2 (S15) Exit/ADU selection gate Exit roller ADU Exit fan (M7) Bottom fan (M8)
Light distribution adjustment plates Exposure lamp Carriage 2 Mirror 2 Mirror 3 Mirror unit Mirror 4 Mirror 5 Mirror 6 Slit glass Auto exposure sensor Lens Original glass Ozone filter Main charger Discharge lamp Receiving tray LED eraser array Main blade Recovery blade Toner recovery auger Separation claw (for drum) Transfer charger Separation charger Drum Bias guide Transport belt Magnetic roller Leveller (doctor) Auto-toner sensor Mixer 1 Mixer 2 Sheet bypass guide
2060, 2860/70 GENERAL
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[B] Rear side view
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No. Scanning motor (M2) Carriage drive wire Drum gear Aligning clutch (CLT2) Drum driving gear Drum belt
Name
Belt for dev-unit, ALGN-roller & paper feeding drive Belt for fuser drive Main motor (M1) Lens motor (M3) Mirror motor (M4) Thermistor-2 (THMS2) Dev-unit drive gear Aligning roller Paper feed belt Manual feed clutch (CLT4) Transport roller clutch (CLT1) Transport roller drive belt Cassette feed clutch (CLT3, 5) Optical fan (M6,12) Document motor (M11)
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2.1.2
Electrical parts layout
[A] DC electrical parts (except motors)
[Front side]
[Rear side]
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2060, 2860/70 GENERAL
No.
Name Control panel key PC board (PWA-KEY) Display PC board (PWA-DSP) Liquid crystal module (LCD) Total counter (T-CTR) Logic PC board (PWA-LGC) Auto paper sensor-2 (APS-R) Auto paper sensor-3 (APS-C) Auto paper sensor-4 (APS-F) Toner-full switch (T-FUL-SW) (S13)
No. *
Name Paper-empty switch-1 (EMP1-SW) (S3) Exit switch (EXIT-SW) (S9) Heat-roller thermistor 1 (THMS1-HTR) Toner sensor (TNR-ATC) Lens switch (LNS-SW) (S11) Mirror switch (MRR-SW) (S12) Automatic exposure PC board (PWA-AES) Aligning-roller clutch (RGT0-CLT) (CLT2) Transport-roller clutch (RGT1-CLT) (CLT1) Manual-feed roller clutch (MFED-CLT) (CLT4)
*
Size switch 1 (SIZE1-SW) (S5) Discharge lamp PC board (PWA-ERS) LED eraser array PC board (K-DCH) High-voltage power supply (PS-HVT) Home switch (HOME-SW) (S10) Platen switch (PTN-SW) (S27) Manual feed switch (M-FED-SW) (S6) Aligning switch (PSTPO-SW) (S8) Paper stop switch 1 (PSTP1-SW) (S7) Side door switch (U-COV-SW) (S4) Auto paper sensor-1 (APS-3B) * *
Feed-roller clutch 1 (FED1-CLT) (CLT3) Size switch 2 (SIZE2-SW) (S15) Feed-roller clutch 2 (FED2-CLT) (CLT5) Paper-empty switch 2 (EMP2-SW) (S14) Paper stop switch 2 (PSTP2-SW) (S16) Heat-roller thermistor-2 (THMS2-HTR) Drum thermistor (DRM-THMS) Tray-up switch (T-UP1-SW) (S28) Tray-up switch (T-UP2-SW) (S29)
*: Option
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[B] DC electrical parts (motors)
[Front side]
[Rear side]
No.
Name Main motor (MAIN-MOT) (M1) Scanning motor (SCN-MOT) (M2) Lens motor (LNS-MOT) (M3) Mirror motor (MRR-MOT) (M4) Toner motor (TNR-MOT) (M9) Document motor (DCM-MOT) (M11)
No. *
Name Tray-up motor-1 (T-UP1-MOT) (M13) Tray-up motor-2 (T-UP2-MOT) (M14) Optical fan-F (OPT-FAN-F) (M12) Optical fan-R (OPT-FAN-R) (M6) Exit fan (EXIT-FAN) (M7) Bottom fan (BTM-FAN) (M8)
*: Option
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[C] AC electrical parts
[Front side]
[Rear side]
No.
Name SW power supply (PS-ACC) Door switch (DOOR-SW) (S2) Main switch (MAIN-SW) (S1) Lamp regulator PC board (PWA-LRG) Heater lamp (HTR-LAMP) Damp heater L (D-HTR-L) (Option) Thermostat (K-THERMO)
No.
Name Thermostat (Option) Damp heater U1 (D-HTR-U1) (Option) Exposure lamp (EXPO-LAMP) Thermofuse (FU-EXPO) Fuse PC board (PWA-FUS) (Option) Damp heater U2 (D-HTR-U2) (Option)
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2.2 Symbol and Function of Electrical Parts
(1) Motors
Parts list Symbol M1 Code name MAIN-MOT (Main motor) Function Drives the drum, developer, heat roller and transport belt M2 M3 M4 M6 M7 M8 SCN-MOT (Scanning motor) LNS-MOT (Lens motor) MRR-MOT (Mirror motor) OPT-FAN-R (Optics fan-R) EXIT-FAN (Exit-fan) BTM-FAN (Bottom fan) Scans the optical system Drives the lens unit Drives the mirror unit Cools the optical system Cools the drum and cleaner Pulse motor Pulse motor Pulse motor IC motor: IC motor: 80 80 80 5 11 11 5 4 4 23 23 23 8 14 14 Remarks IC motor Page 10 Item 31
Prevents the paper from floating IC motor: up through suction
M9 M11 M12 M13
TNR-MOT (Toner motor) DCM-MOT (Document motor) OPT-FAN-F (Optical fan-F) T-UP1-MOT (Tray-up motor-1)
Replenishes the toner Drives copy-area indicators Cools the optical system
Brush motor Pulse motor IC motor: 80
23 9 4 12
30 2 14 36
Drives the upper cassette tray to Brush motor lift up/down
M14
T-UP2-MOT (Tray-up motor-2)
Drives the lower cassette tray to Brush motor lift up/down
12
36
(2) Electromagnetic spring clutches
Parts list Symbol CLT1 Code name RGT1-CLT (Transport-roller clutch) CLT2 RGT0-CLT (Aligning-roller clutch) CLT3 FED1-CLT (Feed-roller clutch-1) CLT4 MFED-CLT (Manual-feed roller clutch) CLT5 FED2-CLT (Feed-roller clutch-2) Transmits feed-roller clutch drive. (Upper cassette) Transmits manual-feed roller clutch drive. Transmits feed-roller clutch drive. (Lower cassette) 12 24 14 17 12 24 Transmits aligning-roller drive. 15 16 Function Transmits transport-roller drive. Remarks Page 13 Item 40
(3) Counters
Parts list Symbol T K Code name T-CTR (Total counter) K-CTR (Key-copy counter) Function Total counter Individual counter
2-9
Remarks 6-digit 6-digit (option)
Page 3 101
Item 23 5
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2060, 2860/70 GENERAL
(4) Switches
Parts list Symbol S1 S2 Code name MAIN-SW (Main switch) DOOR-SW (Door switch) Power supply For safety, cancels abnormal condition S3 EMP1-SW (Paper-empty switch-1) S4 U-COV-SW (Side door switch) S5 S6 SIZE1-SW (Size switch-1) M-FED-SW (Manual-feed switch) S7 PSTP1-SW (Paper stop switch-1) S8 PSTP0-SW (Aligning switch) S9 S10 EXIT-SW (Exit switch) Detects paper in front of the upper transport roller Detects paper in front of the aligning roller Detects exiting paper Photointerruptor Photointerruptor 28 11 8 8 Photointerruptor 15 20 Photointerruptor 13 8 Detects lack of paper in the upper cassette For safety, detects open/closed condition of paper jam release cover Detects upper cassette size Detects manual feeding Push switch Photointerruptor 13 14 50 3 Push switch 2 27 Photointerruptor 12 32 Function Remarks Tumbler type Push switch Page 6 6 Item 3 4
HOME-SW (Home switch) Detects home position of the optical system
S11
LNS-SW (Lens switch)
Detects home position of the lens unit
Photointerruptor
11
8
S12
MRR-SW (Mirror switch)
Detects home position of the mirror Photointerruptor unit
11
8
S13
T-FUL-SW (Toner-full switch)
Detects when the used toner bag is full Detects lack of paper in the lower cassette Detects lower cassette size
Push switch
10
25
S14
EMP2-SW (Paper-empty switch-2)
Photointerruptor
12
32
S15
SIZE2-SW (Size switch-2)
Push switch
13
50
S16
PSTP2-SW (Paper stop switch-2)
Detects paper in front of the lower transport roller Detects open/closed condition of the platen cover Detects the position of the upper cassette tray Detects the position of the lower cassette tray
Photointerruptor
2
26
S27
PTN-SW (Platen switch)
Photointerruptor
5
38
S28
T-UP1-SW (Tray-up-1 switch)
Photointerruptor
12
32
S29
T-UP2-SW (Tray-up-2 switch)
Photointerruptor
12
32
2060, 2860/70 GENERAL
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Dec. 1996 © TOSHIBA
(5) Heaters and lamps
Parts list Symbol EXP Code name EXPO-LAMP (Exposure lamp) HTR HTR-LAMP (Heater lamp) Fixing Function Exposes the original Remarks Halogen lamp 300W Halogen lamp 900W (100V series) 1100W (200V series) ERS ERS-LAMP (Discharge lamp) DCH DCH-LED (LED eraser array) DHU1 DHU2 DHL D-HTR-U1 (Damp heater U1) D-HTR-U2 (Damp heater U2) D-HTR-L (Damp heater L) Keeps optical system warm (option) Keeps optical system warm (option) Cement resistor Cement resistor 102 102 7 4 4 30 To interrupt the charge LED 4 10 Discharges the drum Fuse type 4 12 25 6 Page 18 Item 13
Keeps the drum and transfer/separation Cement resistor charger case warm (option)
(6) PC boards
Parts list Symbol LGC DSP Code name PWA-LGC (Logic PC board) PWA-DSP (Display PC board) KEY PWA-KEY (Key PC board) LRG PWA-LRG (Lamp regulator PC board) DCH K-DCH (LED eraser array PC board) ERS PWA-ERS (Discharge lamp PC board) AES PWA-AES (Automatic exposure PC board) FUS PWA-FUS (Fuse PC board) Fuse for the damp heater circuit 7 31 Reads dark/light of the original 17 37 Turns on and drives LED during reduction Discharge lamp 4 12 4 10 Controls exposure lamp 5 20 Controls operation keys 3 21 Function Controls the entire copier Controls condition displays Remarks Page 8 3 Item 15 20
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2060, 2860/70 GENERAL
(7) Transformers
Parts list Symbol HVT Code name Function Remarks Mono unit type Page 7 Item 27
PS-HVT (Charging transformer) Generates high voltage electricity for charging (negative voltage) (Transfer/separation Generates high voltage electricity
transformer) for transfer/separation and developing bias voltage (Transfer bias Generates bias voltage to raise
transformer) transfer efficiency ACC PS-ACC (Power supply for all) Power supply for whole copier power 8 7
(8) Others
Parts list Symbol ATS Code name SNR-ATC (Auto-toner sensor) THMS1 THMS1-HTR (Heat-roller thermistor-1) THMS2 THMS2-HTR (Heat-roller thermistor-2) THERMO K-THERMO (Thermostat) FU FU-EXPO (Thermofuse) exposure lamp Prevents abnormal heating of the 18 12 Detects the temperature of the heat roller end Prevents abnormal heating of heat roller 26 8 26 27 Function Reads toner density with a magnetic sensor Detects temperature of the heat roller 26 19 Remarks Page 23 Item 33
2060, 2860/70 GENERAL
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2.3 Wire Harness Location Diagram
[A] Location diagram for upper unit
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2060, 2860/70 GENERAL
[B] Location diagram for lower unit
2060, 2860/70 GENERAL
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3560/70 S/M
2.4 Removal of Covers and PC Boards
2.4.1 Removal of covers [A] Front cover (1) Open the front cover. (2) Remove the pins on the hinges at both ends (1 each).
Front cover
[B] Upper rear cover (1) Remove the 4 screws. [C] Lower rear cover (1) Remove the upper 3 screws. (2) Loosen the lower 2 screws. [D] Upper feed cover (1) Open the front cover and the bypass tray and then remove the 2 screws. [E] Feed cover (left and right) (1) Remove the paper feed cover. (2) When removing the left feed cover, open the front cover. (3) Remove the screws (2 on each side).
Left feed cover Right feed cover Loosen Lower rear cover Upper feed cover Upper rear cover
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[F] Upper exit cover (1) Remove the 2 screws. (2) Open the front cover and remove the screw. [G] Lower exit cover (1) Lift the upper unit. (2) Remove the 5 screws.
Upper exit cover
Lower exit cover
[H] Rear top cover (1) Remove the original cover. (2) Remove the 4 screws.
Left top cover Rear top cover Right top cover Glass fix
[I]
Right top cover (feed side)
(1) Remove the 2 screws. [J] Left top cover (exit side)
(1) Remove the 2 screws. [K] Glass fix (1) Remove the 2 screws.
[L] Upper inner cover (1) Remove the process unit. (2) Remove the 3 screws.
Upper inner cover
2060, 2860/70 GENERAL
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[M] Middle inner cover (1) Remove the screw.
Middle inner cover
[N] Door switch cover (1) Remove the 2 screws.
Door switch cover
[O] Lower inner cover (1) Remove the toner box. (2) Remove the middle inner cover. (3) Remove the 1 screw.
Lower inner cover
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2.4.2
Removal of main PC boards
[A] Logic PC board (PWA-LGC) (1) Remove the lower rear cover. (2) Remove the 16 connectors (2860). (15 connectors for 2060). (3) Remove the lock supports (4 pcs.) (4) Remove the logic PC board.
Lock support
PWA-LGC
Lock support
[B] Power supply PC board (PS-ACC) (1) Remove the connector bracket (2 screws). (2) Remove the 14 connectors. (3) Remove the 4 screws. (4) Remove the power supply PC board.
PS-ACC
Connector bracket
[C] Lamp regulator PC board (PWA-LRG) (1) Remove the upper rear cover. (2) Remove the 2 connectors. (3) Remove the lamp regulator PC board (4 lock supports).
Lock support PWA-LRG
Lock support Connectors
2060, 2860/70 GENERAL
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[D] ADU drawer connector (1) Remove the logic PC board. (2) Remove the bracket for the logic PC board (3 screws). Remove the connector J535 on the PS-ACC. (3) Remove the bracket for the ADU drawer connector (2 screws).
Bracket for PWA-LGC
ADU drawer connector bracket
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3.
COPYING PROCESS
Original exposure
3.1 Copying Process
2
Halogen lamp 300 W LED eraser array 63 LEDs Charging 635V ±5 V Optical section
Toner Carrier
1
9
Discharge lamp 1.8W x 9 lamps
_ _
+ + +
_ _
3
+ +
8
Cleaning
_ _
+
Black development Magnetic roller Bias 100 VDC
_
7
Paper exiting Fixing Heat roller
900 W (115V) 1030W (220/240V)
+ +
_
Sheet-bypass feeding (50 sheets) Cassette feeding (upper/ lower/PFP)(600 sheets) LCF feeding (1500 sheets)
Separation AC 3.41 kV 1 kHz
Transfer DC 5.25 kV
5 4
6
Transfer bias DC 990 V
Charging
D
: Negatively charges surface of the photosensitive drum. : Forms an electrical image on the drum. toner adheres to surface of photosensitive drum and forms a visible image.
Separation
D
: Separates the transfer sheet, along with the toner, from the drum. : Fixes the toner on the transfer sheet by applying heat and pressure. : Mechanically removes any remaining toner on the drum. charge from the drum.
Exposure
D
Fixing
D
Development :
D
Cleaning
D
Transfer bias : Increases transfer efficiency.
D
Discharge lamp : Discharges any remaining : Transfers the visible image from the drum onto the transfer (copy) sheet.
Transfer
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3.2 Comparison with the 2050 of Copying Process Conditions
Process 1. Drum (1) Sensitivity (2) Charger grid voltage 2050 OD-1710 (OPC ø60) Highly sensitized drum DC 800V Scolotron system 2060/2860 OD-2060 (OPC ø60) (1) (2)635 V DC Scolotron system Output adjustable by using the ten keys 2. Main charger Variable output (fixed current) using the digital keys 3. Exposure (1) Light control Automatic exposure/manual slide volume setting (2) Light source 300W halogen lamp stabilized with regulator (light intensity remains constant even when voltage varies) 4. Development (1) Magnetic roller One magnetic roller (with two shaft mixers) (2) Auto-toner (3) Toner replenishment (4) Toner-empty detection (5) Toner Magnetic bridge-circuit system Toner cartridge system Intensity sensing system T-1710 (Black) T-1710-R (Red) T-1710-BL (Blue) (6) Developing material D-1710 (Black) D-1710-R (Red) D-1710-BL (Blue) (7) Developer bias 194V DC, volume adjustable (7)100 V DC, adjustable using the digital keys 5. Transfer bias 6. Transfer 1.4KV DC Adjustable output (fixed current) using the digital keys 7. Separation Adjustable output (independently adjustable using the digital keys) 990 V DC (6)D-2060 (Black) (2) (3) (4) (5)T-2060 (Black) (1) (2) (1)Automatic exposure and manual 9-step setting
2060, 2860/70 PROCESS
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3560/70 S/M Process 8. Discharge (1) Discharging position (2) Discharge lamp 9. Cleaning (1) System (2) Recovered toner 10. Fixing (1) System · Fixing Long-life heat roller system · Fixing roller: Teflon coated roller (1) · Fixing roller: Aluminum roller coated with Teflon (ø40) · Pressure · Pressure roller: PFA tube silicon roller (ø28) · Pressure roller: Silicon rubber roller with PFA tube. (ø35) · Lamp rating Infrared heat · 900W (100V series) · 1100W (200V series) (2) Cleaning Cleaning with silicon impregnated roller (3) Heater-temperature control 11. Control ON/OFF control by thermistor Microcomputer (3) Infrared heat · 900W (115V) · 1030W (220/240V) (2) Blade system Non-reusable (1) (2) Discharge by exposure after cleaning (1) Discharge by tungsten lamp (2) 2050 2060/2860
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4.
COPIER OPERATION
Copier operation Operation during warm up and standby Automatic-feed copying using PRINT key Copying operation Bypass-feed copying Interrupt copying
4.1 Operation Outline
4.2 Description of Operation
4.2.1 Operation up to standby state after power on (1) Initial operation · The main switch is turned ON. · Copy quantity indicator "0" and "WAIT WARMING UP" are displayed. · Initialization of the optical system ~ Carriages move to their home position and then stop. ~ Lens and mirror units move to their home position and then stop. ~ Indicators perform the initial operation and move to a position indicating the copy area. · Initialization of the paper feed section ~ Each slot's cassette trays move upward. If they were raised already, they are not moved. (2) Pre-running 65 sec. have elapsed since the power was turned ON ~ Main motor rotates ~ Fuser unit drive section rotates: Pre-running Pressure roller is warmed After pre-running for 15 sec., the main motor stops ~ Fuser unit drive section stops (3) When the heat roller temperature is sufficient for fixing, the heater lamp is turned off, and the copier enters the standby mode. 4.2.2 Standby (ready)
· Bottom fan motor (M8) and exit fan motor (M7) are running at low speed. · All keys on the control panel are operable. When there is no key input for a set amount of time, the copy quantity "1" will be shown, the reproduction ratio will indicate "actual size", and the exposure will be set at automatic.
Dec. 1996 © TOSHIBA
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4.2.3
Automatic feed copying using the PRINT key
(1) PRINT key is pressed · Main, transfer, and separation chargers, transfer bias, discharge lamp and LED eraser array are turned on. · Optical fan motor (M6, M12), bottom fan motor (M8) and exit fan motor (M7) are running at high speed. · Main motor is turned on ~ Drum, developer unit, transport belt, heat roller, and exit roller are running. (2) Cassette feeding · Feed clutch (CLT3 or 5) is turned on ~ Pick-up roller, paper feed roller, and separation roller are running. Transport roller rotating · Paper reaches the transport roller ~ Paper stop switch-2 (S14) is turned on. After a set amount of time, the feed clutch (CLT3 or 5) is turned off. * Paper reaches the aligning roller. Paper stop switch-1 (S7) is turned on. ~ Aligning operation After a set amount of time, the feed roller stops rotating (CLT1). (3) Carriage operation · Exposure lamp is turned on. Carriages -1 and -2 scan in a forward direction ~ Scanning motor (M15) is turned on. At this time, if the toner density of the developer material is lower than the set value, the copier enters the toner supply operation. ~ Toner motor (M9) is turned ON. (4) A set time lag after the carriage operation; aligning clutch (CLT2) is turned on: ~ paper is sent to the transfer unit. The counter is increased by 1. (5) Termination of carriage scanning. · Scanning motor (M2) is turned off. · Main charger and exposure lamp are turned off. · Aligning clutch (CLT2) is turned off. (Timing of shutting off depends on paper size.) (6) Exit operation · Exit switch (S9) detects the passing of the paper trailing edge. · Main motor (M1), transfer and separation chargers, transfer bias, discharge lamp, and LED eraser array are turned off. · Optical fan motor (M6, M12) stop, and bottom fan motor (M8) and exit fan motor (M7) are running at low speed. · Carriages and indicators move to the position indicating copy area. · The copier enters the standby mode.
2060, 2860/70 OPERATION 4-2 Dec. 1996 © TOSHIBA
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3560/70 S/M
Dec. 1996 © TOSHIBA 4-3 2060, 2860/70 OPERATION
0.1 CW MAIN-MOT
7.10
8.50 8.53
CCW
SCN
0.2 BWD
0.84 FWD 0.72
1.99
2.41 BWD
3.77 FWD
4.91
5.34 BWD
RGT
1.02 ON
2.12
3.95 ON
5.05
EXIT-SW
2.82 ON 0.44 ON 0.71 ON 2.03 2.13 3.37
3.93
5.75 ON 5.06 ON
6.85
EXPO
HVT-M
3.64 ON
4.96
2.35
OFF
4.10 4.30
5.29 5.03 High
OFF
Transfer
OFF 0.1
1.37
2.10 High
Separation
OFF 0.1
2.46 1.47
LOW
4.10 4.40 High
5.40
LOW
Guide bias
1.20 ON
2.29
4.14 ON
5.22
Timing chart for two A4 actual-size cassette feeding
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3560/70 S/M
4.2.4
Bypass-feed copying
(1) A sheet of paper is inserted through the bypass guide · Manual feed switch (S6) is turned on. (2) PRINT key is pressed · The main transfer and separation chargers, transfer bias, discharge lamp, and LED eraser array are turned on. · Optical fan motor (M6, M12), bottom fan motor (M8) and exit fan motor (M7) are running at high speed. · Main motor (M1) is turned on ~ Drum, developer unit, transport belt, heat roller, and exit roller are running. (3) Sheet-bypass feeding · Manual feed clutch (CLT4) is turned on ~ Manual feed roller is lowered. ~ Manual feed roller, paper feed roller, and separation roller are running. Aligning operation · Paper reaches aligning roller ~ Paper stop switch1 (S7) is turned on. After a set time lag, the manual feed clutch (CLT4) is turned off and paper feeding is terminated. (4) Same as operation (3) through (6) of "4.2.3 Automatic Feed Copying Using the PRINT key". 4.2.5 Interrupt copying
(1) The INTERRUPT key is pressed. · Interruption LED is turned on. The copying operation is temporarily halted and carriages-1 and -2 return to their home position. The copying mode is set to automatic exposure and 1-to-1 reproduction ratio. Register remains unchanged. (2) The preferred copying modes are specified. (3) After interrupt copying is terminated when the INTERRUPT key is pressed again, the interrupt LED goes off and the copier returns to the conditions before the interruption. (4) PRINT key is pressed The copying operation before the interruption is resumed.
2060, 2860/70 OPERATION
4-4
Dec. 1996 © TOSHIBA
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3560/70 S/M
4.3 Fault Detection
If a fault occurs in the copier, a symbol corresponding to the type of fault will be displayed in order to draw the attention of the operator. · Classification of faults A) Faults which can be cleared without turning off the door switch (yellow flashing display on the display panel). (1) ADD PAPER (2) BYPASS MISFEED (3) INSERT KEY COPY COUNTER (4) CASSETTE MISFEED B) Faults which cannot be cleared without turning off the door switch (red flashing display on the display panel). (1) CLEAR PAPER (2) ADD TONER (yellow flashing display) (3) REPLACE TONER BAG C) Faults which cannot be cleared unless the main switch (S1) is turned off. (1) SERVICE CALL A-1) ADD PAPER ( · )
[In the case of the copier and PFP cassettes] When the cassette is not installed, the size switch (S5 or S15) detects the absence of the cassette.
G
~Size switches are all switched off. 64748 Paper empty status. f Signal sent to control circuit. The ADD PAPER display will flash. * The PRINT key will not function. f
When the cassette is not installed. When the cassette is installed but there is no paper in the cassette.
Dec. 1996 © TOSHIBA
4-5
2060, 2860/70 OPERATION
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3560/70 S/M
[In the case of the LCF and the pedestal] By combining the operation of the tray motor and the condition of the tray-up switch and the empty switch, the CPU detects whether or not there is paper. · When the power is turned on or when the LCF door is opened/closed (for the pedestal: when the power is turned on or when the cassette is removed) ~ The PFC (Paper Feed Controller) causes the LCF to initialize. Detects whether or not there is paper · Tray motor comes on ~ The tray rises. · A fixed time later, if the tray-up switch is not turned on: The tray is not normal f
2060, 2860/70 OPERATION
Removing/reinstalling the LCF or turning off/on clears this condition. (For the pedestal, turn off/on the power.) · Within a fixed time, the tray-up switch turns on: ~ The tray motor stops. At this time, if the empty switch is on At this time, if the empty switch is off ~ It is determined there is paper. ~ It is determined there is no paper. The "ADD PAPER" is displayed. · During copying, sheets of paper are fed and when the paper supply becomes low ¡ The tray-up switch goes off ¡ The PFC turns on the tray motor ~ The tray moves up. The tray-up switch come on ¡ The tray motor stops. · During copying, when the empty switch goes off despite the tray-up switch being on It is determined there is no paper. "ADD PAPER" is displayed. Copying stops. f f f f f
4-6 Dec. 1996 © TOSHIBA
f f At this time, both tray-up and LCF empty switches are off. ¡ The "ADD PAPER" is displayed regardless of paper being present or not. ¤
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3560/70 S/M
A-2)
BYPASS MISFEED (
14443
)
· During sheet bypass copying The manual feed clutch (CLT4) has been turned on The paper-stop switch-1 (S7) comes on * If the paper-stop switch-1 (S7) does not come on within the specified time: BYPASS MISFEED The BYPASS MISFEED symbol is displayed Copying cannot be started Clearing method: Remove the paper from the sheet-bypass guide. The manual-feed switch (S6) goes off. A-3) INSERT KEY COPY COUNTER ( ) f · If the copy counter (optional) is installed in the copier and is then withdrawn: f The INSERT KEY COPY COUNTER display appears Copying is not possible · If the counter is withdrawn during copying, the machine will stop after the paper being copied has exited. B-1) CLEAR PAPER ( ) f · Leading-edge jam detection by the exit switch (S9): (E01) The aligning clutch (CLT2) is turned on The exit switch (S9) comes on * When the exit switch (S9) has not come on after 1.875 seconds have elapsed. The CLEAR PAPER symbol (E01) appears and copying will stop.
CLEAR PAPER (E01) Exit switch Timer 0 1.875 sec
f f f f f f 1.875 sec.*
Aligning motor On On
4-7 2060, 2860/70 OPERATION
Dec. 1996 © TOSHIBA
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3560/70 S/M
· Trailing-edge detection by exit switch (S9): (E02) Aligning clutch (CLT2) goes off. per exit) * When the exit switch (S9) does not go off even after 1.92 seconds: The CLEAR PAPER symbol appears (E02), and copying stops. · Immediately after power on Exit switch (S9) is detecting paper (on) CLEAR PAPER (E03) · If the front cover is opened during copying CLEAR PAPER (E04) · Leading edge jam detection by the paper stop switch in front of the aligning roller: After the leading edge of the paper passes the transport rollers, if the paper stop switch-1 (S7) is not turned on within a fixed time Paper misfeeding (E05) · During paper feeding from the ADU: After the feed clutch is turned on, if the paper stop switch (S16) does not come on within a fixed time. Paper misfeeding (E11) · During paper stacking in the ADU: If the ADU jam switch (SA4) does not detect any paper at the fixed timing Paper misfeeding (E08)
CLEAR PAPER (E02) Timer 0 1.92 sec Aligning motor Off Exit switch On
1.92 sec*
The exit switch (S9) goes off (detects pa-
2060, 2860/70 OPERATION
4-8
Dec. 1996 © TOSHIBA
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3560/70 S/M
· During paper feeding from the copier and the pedestal: After the feed clutch is turned on, if paper stop switches (S7/S16) do not come on within a fixed time Paper misfeeding (E13 E19) E13 E19: The error code is different according to the cassette used. B-2) ADD TONER ( Toner empty detection: Auto-toner sensor Control circuit: f the ADD TONER symbol appears: copying is not possible Clearing method: Replace the toner cartridge and close the front cover. Toner supply operation: copying is possible B-3) REPLACE TONER BAG ( The toner-recovery auger moves towards the rear of the copier: toner-full switch (S13) will be turned on. REPLACE TONER BAG display · When the toner-full switch (S13) comes on during copying Copying will stop after the last sheet has exited during copying Clearing method: Replace with a new toner bag. C-1) Service call ) )
Toner density has become low
The toner bag becomes full of toner
If the CLEAR/STOP key and the "8" key are pressed simultaneously when the SERVICE CALL symbol symbol is flashing, one of the error codes will appear on the message display. For the contents of the error codes, refer to the "SERVICE HANDBOOK".
Dec. 1996 © TOSHIBA
4-9
2060, 2860/70 OPERATION
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3560/70 S/M
4.4 Flow Charts
4.4.1 Power on to ready
Main switch on
DC power on Restart
YES
Cover open?
NO
Heater lamp HTR ON
· · · · · ·
SCN-MOT LNS-MOT MRR-MOT DCM-MOT STOP-MOT GUIDE-MOT
1444442444443
YES YES YES
Start initialization
P-STP-SW ON?
NO
EXIT-SW ON?
NO
ADU-JAM-SW ON?
NO
Paper jam A
"E03"
2060, 2860/70 OPERATION
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Dec. 1996 © TOSHIBA
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3560/70 S/M
T-FUL-SW ON?
NO
YES
NO
Toner empty?
YES
Main motor 6 sec. ON Toner replenishment
(Toner-full removal operation)
NO NO
Initialization over?
YES
T-FULL SW ON
YES
Toner bag replacement
NO
Have 20 sec. passed since start of initialization?
YES
Service call "C21"or "C22" or "C23"
· Lens and mirrors positioned for specified reproduction ratio · Carriage and indicator indicate copy area
Is heat roller pre-running sufficient for fixing?
NO
YES
Main motor ON Pre-running operation starts
Is the thermistor open?
YES
NO
Service call
NO
Have 15 sec. passed
YES
"C41"
Main motor OFF Pre-running stops
READY
Dec. 1996 © TOSHIBA
4 - 11
2060, 2860/70 OPERATION
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3560/70 S/M
4.4.2
Automatic feed copying
PRINT key
Transfer charger on Separation charger on Discharge lamp on
Process control
Transport control
Optical section control
All LEDs of the LED eraser array on
PLL check for main motor OK?
YES
NO
Carriage moves to home position
Main charger on
Service call LED eraser array off Feed motor on "C01" Exposure lamp on
All LEDs of the LED eraser array on
Feed motor off
Carriage advances
Main charger off
Aligning motor on Counter on Scraper solenoid on
Carriages stops
All LEDs of the LED eraser array off
Exposure lamp off Counter off
NO
Is number of remaining copies zero?
YES
YES
Scraper solenoid off Aligning motor off
Is number of remaining copies zero?
NO
Carriage retreats to home position
NO
Is number of remaining copies zero?
YES
Process control end
Exit switch check 1
OK
NG
Copying area indicated
Optical section control end
B
Paper jam
"E01"
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Dec. 1996 © TOSHIBA
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3560/70 S/M B
Paper jam "E02"
NG
Exit switch check 2
OK
Transfer changer OFF Separation charger OFF Discharge lamp OFF
Drum rotation reversed
Standby
Dec. 1996 © TOSHIBA
4 - 13
2060, 2860/70 OPERATION
5.
DISPLAY UNIT
The display unit consists of key switches for copier operation/selection of each mode, LEDs and an LCD displaying the copier state or messages. Particularly, when the operator's attention is recommended, a graphic symbol lights or flashes and the message indicating that condition is displayed.
5.1 Detailed Drawing of the Control Panel and the Display Panel
For the U.S.A. and Canada
READY
LT 100%
ENERGY SAVE INTERRUPT
200%
ORIGINAL
LD
COPY SIZE
100%
PREV.
HELP
YES
NO
50%
ZOOM
LG
M1 M2
LT
STAPLE SORT GROUP SORTER 2 in 1 SADF ADF ADF DUPLEX CASSETTE LIGHT AUTO DARK IMAGE MODE
1 4 7 0
2 5 8
C/
CLEAR/STOP
3 6
FC
FUNCTION CLEAR
ST
USER SET
IMAGE SHIFT
OTHER
LEFT RIGHT BOOK
9
AMS
PRINT
JOB MEMORY
EDGE ERASE
DUAL PAGE
APS
SET RECALL
For Europe
200%
READY
A4 100%
ORIGINAL
A4
COPY
100%
PREV.
INFO
YES
NO
50%
A3
M1 M2
B4
1 4 7 0
2 5 8
C/
3 6
FC
B5
USER SET IMAGE SHIFT
UNIV
LEFT RIGHT BOOK
9
AMS APS
MODE MEMORY
EDGE ERASE
DUAL PAGE
SET
RECALL
Arrangement of the control panel For the U.S.A. and Canada For Europe
CASSETTE
Details of the display panel
Dec. 1996 © TOSHIBA 5-1 2060, 2860/70 DISPLAY
5.2 Items Shown on the Display Panel
5.2.1 Display during normal copying Conditions of machine Being warmed up · Indicated after the main switch is switched on up until the machine becomes capable of copying. Capable of copying. · Indicated when the machine is capable of copying and the operator's instructions for copying conditions are awaited. · Returns to the initial condition if no key input is given for 45 seconds. Now copying. · Indicated by pressing the PRINT key. · Copy quantity indicator becomes "1" and copying is completed. Energy saving conditions. Notes · The number and reproduction ratio of the copies are indicated, for example, as "0", "100%" when the main switch comes on. · Copy quantity indicator indicates as "1". When a digital key is pressed, the set number is indicated. · The set number is cleared to "1" by pressing the CLEAR/STOP key. · Manual copying is possible.
No. Message 1 WAIT WARMING UP
2
READY
3
COPYING
· After completion of copying, the copy quantity indicator returns to the initially set number.
4
SAVING ENERGY PRESS PRINT PLACE NEXT ORIGINAL
· Released by pressing the ENERGY SAVER key or the PRINT key. · When using ADU 1-sided, and when not using ADF.
5
ADU 1-sided copying standby state. C below.
In case of lateral paper feeding, the symbol A lights up and for longitudinal feeding, the symbol B lights up on the display panel.
C
A
B
2060, 2860/70 DISPLAY
5-2
Dec. 1996 © TOSHIBA
5.2.2
Display in the event of faulty conditions Abnormal state & indication Indication of lack of paper. · Indicates when there is no paper in the cassette. (A below.) · Indicates which cassette has no paper. (E below.) · Manual copying is possible. ADD TONER: Indication of lack of toner. · B below is indicated when PRESS INFO the toner in the toner cartridge runs out. · When this message is displayed, it is not possible to copy. INSERT Key copy counter withdrawn. · Indicated when the key copy KEY COPY COUNTER counter is withdrawn when the machine is READY or during copying. C below. · When it is removed after pressing the PRINT key, the machine stops after that copy is completed, but the counter counts it. DISPOSE OF Indication of need to replace the toner bag. USED TONER · Indicated when the toner bag is full. D below. The copier stops. Solution · Supply paper to the selected cassette. · Select another cassette.
No. Message 6 ADD PAPER
7
· Released after the toner is supplied and the front cover is closed.
8
· Released and returned to normal conditions by inserting the key copy counter.
9
Open the front cover and replace the toner bag.
D
B C
A
E
Dec. 1996 © TOSHIBA
5-3
2060, 2860/70 DISPLAY
No. Message 10 PAPER MISFEED
11
12
13
14
Abnormal state & indication Bypass paper jamming · Indicates when paper jams at IN BYPASS the bypass guide. A below. MISFEED IN COPIER Paper jammed in the machine. · Indicated when paper jams in PRESS INFO the machine. B, C, D and H below. MISFEED Original jammed · Indicated when an original is IN DOC. FEEDER jammed in the optional document feeder. E and F below. MISFEED IN SORTER: Paper jammed in the sorter. · Indicates when paper is jammed in the sorter. G below. PRESS INFO MISFEED IN ADU: Indicates when paper is jammed in the ADU section. I below. PRESS INFO
Solution The machine is returned to normal conditions automatically by pulling the paper out from the bypass guide. · Press the HELP (INFO) key and remove the paper jammed in the copier following the message. Open the ADF feed cover and remove the jammed original.
Remove the paper jammed in the sorter and open and close the front cover once. Press the HELP (INFO) key and remove the paper jammed in the copier following the message.
E
F C
B G I
A D H
2060, 2860/70 DISPLAY
5-4
Dec. 1996 © TOSHIBA
No. Message 15 CALL FOR SERVICE: PRESS INFO TIME FOR PERIODIC MAINTENANCE
16
Abnormal state & indication Some or one of the mechanism, motors, switches or sensors are abnormal. A below. Indication of PM cycle. · Indicated when it is time for periodic maintenance and inspection. · Capable of copying.
Solution Turn off the machine, remove the cause of the fault and turn the machine back on. Maintenance and inspection by a qualified service technician.
A
Dec. 1996 © TOSHIBA
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2060, 2860/70 DISPLAY
Operation CLEAR/ STOP key Digital keys Sheet bypass _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ COPY SIZE key CASSETTE SELECTION key INTERRUPT key ENERGY SAVER key EDGE ERASE key IMAGE SHIFT key
PRINT key
Condition
REPRODUCTION EXPOSURE ORIGINAL SIZE RATIO key key selection key DUALPAGE COPY key
Warming up
2060, 2860/70 DISPLAY
Ready
_
Reproduction-ratio changing
Copying
Add paper
Add toner
Key copy counter not inserted (optional)
Bypass misfeed
Replace toner bag
Clear paper
5.3 Relationship between Copier Conditions and Operator's Actions
5-6
Service call
Interrupt mode
_
Energy-saving mode
_
_: Machine operates or indicates in accordance with the operator's action.
: Operation is ignored.
(1) By pressing the ENERGY SAVER key or the PRINT key, the energy-saving mode will be cancelled.
(2) During copying, avoid changing exposure as far as possible.
(3) The function of the CLEAR/STOP key changes in the following manner according to the machine status.
During copying ......... Interruption of the copying (Stop function ..... The copy quantity indicator will not change.)
When not copying .... When pressed once, the copy quantity indicator returns to "1".
(4) During copying, avoid sheet bypass feeding because of possible paper jamming.
Dec. 1996 © TOSHIBA
Note: The interrupt mode will be automatically cancelled when the machine is not used for 45 seconds.
5.4 Description of Operation
5.4.1 Dot matrix LCD display circuit · Dot matrix LCD display circuit has a display capacity of 40 characters (20 characters x 2 lines). · 1 character is a unit consisting of ON/OFF lights made of 35-element (5 x 7) dots. (1) Structure
(2) Drive Operation · LED control: The LCD's internal control driver drives. · What character is displayed in what position: IC19 (main CPU), IC9 (HC244), IC37 (7407), and IC18 (gate array) of the logic circuit control. · Message data and executable programs are stored in the main PROM. · The character codes are stored in the PROM on the LCD. The main CPU divides the display block into 4 blocks. The main CPU outputs the RAM address data for the starting position at which each block is displayed and then outputs display data for the number of characters (10 characters) to be displayed to the LCD. When the message is changed, the main CPU outputs the display data for the blocks 1~4.
1 3
Display blocks
2 4 (4a)
When changing the display data only for the reproduction ratio, the leading RAM address data in the display position of the reproduction-ratio block (4a) are first output and then the display data for the number of reproduction-ratio characters (4 characters) are output to the LCD.
Dec. 1996 © TOSHIBA
5-7
2060, 2860/70 DISPLAY
AD15
IO10
A7
B7
DB7 DB0
~
~
~
~
AD0
IO17
A0
B0
O17 O14 O15
OE 244
Gate array
LCD-E LCD-RS E RS
Main CPU
5.4.2
LED display circuit
(1) LED display method For example, the following shows how the LED LP12 (APS) lights up for displaying "automatic paper sensing".
+5VD R9 R11 DSPON0 "L" Q2
R
"L" 14 D10 R7 IC4
(APS) LP12
When DSPON0 signal becomes "L" level, transistor Q2 is turned ON. Further, when IC4 pin14 (D10) becomes "L" level, current flows from +5VD to LP12 (APS) through the transistor. In this way LP12 (APS) lights up.
2060, 2860/70 DISPLAY
5-8
~
Dec. 1996 © TOSHIBA
(2) The actual circuit is controlled as follows.
VDD DSPON1 DSPON0 LTL16KG 2 P/3 LTL16KG 2 P/2 LTL16KG 2 P/1 LTL16KG 2 P/0 LTL16KG 2 P/USER LTL16KG 2 APS LTL16KG 2 USER/AJ LTL16KG 2 EDGE LTL16KG 2 DP LP1 LTL16KG 2 1LP7 LP2 LTL16KG 2 1LP8 LP3 LTL16KG 2 1LP9 LP4 LTL16KG 2 1LP10 LP5 LTL16KG 2 1LP11 LP6 LTL16KG 2 1LP12 LP16 LTL16KG 2 1LP13 LP15 LTL16KG 2 1LP17 LP14 LTL16KG 2 1LP18 1 1 1 1 1 1 1 1 1 O/3 O/2 O/1 O/0 O/USER AMS MSB MSR MSL 4B8 4B8
R18 1 R17 1 R20 1 R19 1
2 1000 2 1000 2 1000 2 1000
R2 100 2 1 R3 100 2 1 R4 100 2 1 R5 100 2 1 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 6 7 9 10 11 12 14 15 16 17 19 20 21 22 24 25 R6 100 2 1 R7 100 2 1 R12 100 2 1 R14 100 2 1 R13 100 2 1
4B3
4B3 4B3 4C8 4B3
DSPDAT DSPLTH DSPRST DSPCLK
R16 1000 1 2 R15 1000 1 2 HC14 2 3 IC3 HC14 4 IC3
1
27 4 26 28 2 3 29 30 1 23 18 13 8
LAST L/R SIN LATCH BE0 STB CK VDD VSSL VSSD3 VSSD2 VSSD1 VSSD0 IC4 7932M
1 2
1 2
C4 CKME0.1/25
1 2
SOUT 5
PHOTO A-EXPO5 EXPO9-4 EXPO8-3 EXPO7-2 EXPO6-1
4C8 4C8 4C8 4C8 4C8 4B8
C6 CKM33P/50J
C7 CKM33P/50J
SGD GND
DSPOUT1 DSPCLK1 DSPLTH1
4C8 4C8 4C8
5VD R8 1 4B3 DSON1 R10 1 2150 R9 1 4B3 DSON0 R11 1 2150 22200 3 1 22200 1 3 Q2 2SA1428Y 2 Q1 2SA1428Y 2
(14.2.1 Display Circuit (PWA-DSP) 1/4)
· · ·
The signals of DSPON0 and DSPON1 become "L" level by one turn every 8 msec. Q1 (or Q2) is turned ON when DSPON0 (or DSPON1) is "L" level. LED ON/OFF signal from LGC is inputted to the SIN (pin 26) terminal of IC4 through DSPDAT signal line. (Serial data)
DSPDAT DSPON1 DSPON0
8 msec 8 msec Q2 OFF Q2 ON
Q1 ON
Q1 OFF
·
The LED ON/OFF signal is inputted to IC2 in serial is outputted to output terminals of D1 D16 in parallel.
D7
LP14
ON
(example)
LP18 ON ON
(example)
Condition of LED lighting The transistor (Q1 or Q2) connected on the anode side of the LED is ON status. Output connected on the cathode side of the LED is "L" level. When the above conditions and are fulfilled, the LED lights.
Refer to the following names of the LED which are ON/OFF controlled by DSPON0/DSPON1 signals.
Dec. 1996 © TOSHIBA
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2060, 2860/70 DISPLAY
Transmission
LP 5 38 22 23 24 25 26 27 12 15 30 16 33 32
SIGNAL DF/SINGL CST1 CST2 CST3 CST4 CST5 CST6 O/YOKO DFJ SRVC TEMP TFULL KCTR ADUSTUCK
DSP-ON-0 ADF single feeding Cassette selection (LCF) Cassette selection (Copier-U) Cassette selection (Copier-L) Cassette selection (PFP-U) Cassette selection (PFP-M) Cassette selection (PFP-L) Horizontal original ADFJAM (Feeding) Call service Toner empty Toner full Key copy counter withdrawn ADU stacking
LP 6 35 17 18 19 20 21 28 29 11 13 31 36 14 37 34 53 53 53 53 53 53 53 52 50 51 4 1 2 3 8 10 *1 *2 *3 *4 *5 *6 *16 *15 *14 45 44 43 42 41
SIGNAL DF/MULT1 PEMP1 PEMP2 PEMP3 PEMP4 PEMP5 PEMP6 O/TATE DEJ SJ EJ RJ TJ ADUJ PJ MJ MAG1/G MAG1/B MAG1/A MAG1/F MAG1/E MAG1/D MAG1/C AC PS INT 2IN1 STAPLE SORT GROUP ADU2 ADU4 O/3 O/2 O/1 O/0 O/USER AMS MSB MSR MSL EXPO5 EXPO4 EXPO3 EXPO2 EXPO1
DSP-ON-1 ADF multiple feeding Paper empty (LCF) Paper empty (Copier-U) Paper empty (Copier-L) Paper empty (PFP-U) Paper empty (PFP-M) Paper empty (PFP-L) Vertical original ADFJAM (Exiting) Sorter JAM Paper existing JAM Paper feeding JAM (Before aligning) Paper feeding JAM (After aligning) ADUJAM PFPJAM Bypass JAM Copy quantity display (hundreds) Copy quantity display (hundreds) Copy quantity display (hundreds) Copy quantity display (hundreds) Copy quantity display (hundreds) Copy quantity display (hundreds) Copy quantity display (hundreds) All clear Energy saving Interruption 2IN1 Staple mode Sort mode Group mode Duplexing (2 ¡ 2) Duplexing (Book ¡ 2) Original size Original size Original size Original size Original size (User adjustment) AMS Margin shift (Book) Right margin shift Left margin shift Exposure display 5 Exposure display 4 Exposure display 3 Exposure display 2 Exposure display 1 (L MAX.)
LC7932 IC1-6 IC1-7 IC1-9 IC1-10 IC1-11 IC1-12 IC1-14 IC1-15 IC1-16 IC1-17 IC1-19 IC1-20 IC1-21 IC1-22 IC1-24 IC1-25 IC2-6 IC2-7 IC2-9 IC2-10 IC2-11 IC2-12 IC2-14 IC2-15 IC2-16 IC2-17 IC2-19 IC2-20 IC2-21 IC2-22 IC2-24 IC2-25 IC4-6 IC4-7 IC4-9 IC4-10 IC4-11 IC4-12 IC4-14 IC4-15 IC4-16 IC4-17 IC4-19 IC4-20 IC4-21 IC4-22 IC4-24 IC4-25
order 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Mark *: No mark:
53 53 53 53 53 53 53 53 53 53 53 53 53 53 7 9 *7 *8 *9 *10 *11 *12 *13 *17 *18 39 40 49 48 47 46
MAG2/G MAG2/B MAG2/A MAG2/F MAG2/E MAG2/D MAG2/C MAG3/G MAG3/B MAG3/A MAG3/F MAG3/E MAG3/D MAG3/C ADU1 ADU3 P/3 P/2 P/1 P/0 P/USER APS USER/AJ EDGE DP PHOTO AUTO EXPO9 EXPO8 EXPO7 EXPO6
Copy quantity display (tens) Copy quantity display (tens) Copy quantity display (tens) Copy quantity display (tens) Copy quantity display (tens) Copy quantity display (tens) Copy quantity display (tens) Copy quantity display (units) Copy quantity display (units) Copy quantity display (units) Copy quantity display (units) Copy quantity display (units) Copy quantity display (units) Copy quantity display (units) Duplexing (1 ¡ 2) Duplexing (2 ¡ 1) Paper size Paper size Paper size Paper size Paper size (User adjustment) APS User adjustment Edge erasing Dual-page copying Photo mode Automatic exposure Exposure display 9 (D MAX.) Exposure display 8 Exposure display 7 Exposure display 6
LEDs on PWA-DSP LEDs on PWA-KEY
2060, 2860/70 DISPLAY
5 - 10
Dec. 1996 © TOSHIBA
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3560/70 S/M
6. DRIVE SYSTEM
6.1 Construction of Drive System
The drive system consists of a drum (cleaner unit), developer unit, transport belt, heat roller, exit roller, transport roller, cassette feed roller and aligning roller. The drive system is driven by the main motor.
6.2 Description of Operations
· · · · · · · · Drum drive ......................... Main motor rotation is transmitted to the drum drive pulley via the timing (Cleaner unit) belt, and drives the drum gear. Developer unit drive ........... Main motor rotation is transmitted to the developer unit drive gear via the timing belt and the gear. Heat roller drive .................. Main motor rotation is transmitted to the heat roller gear via timing belt and gears, and drives the heat roller. Transport belt ..................... Transport belt gear is driven by the heat roller gear via the idle gear. Exit roller ............................ Exit roller gear is driven by the heat roller gear via the idle gear. Aligning roller ..................... Main motor rotation is transmitted to the aligning roller clutch via the timing belt and gears. Transport roller ................... Main motor rotation is transmitted to the transport roller clutch via timing belts and gears. Cassette feed roller ............ Main motor rotation is transmitted to the cassette feed roller via timing belts and gears.
Gear/Developer unit drive gear (G26)/(G23) Timing pulley/Drum Timing pulley drive gear (G56/TP24) Main motor (TP40) (G20) (TP24)(G24) (G10) Belt (248 pitch) Arm fulcrum gear (G26) Arm fulcrum gear Belt (246 pitch) (G25) (G56) Heat roller (G24/G18) (G20) Exit roller (G20)
Bypass feed roller Belt (Clutch/G28) (324 pitch)
Timing pulley of the (G28) clamshell fulcrum (TP24/TP30/G28) (G28)
(G26) Belt (324 pitch) Timing pulley (G20) (G57/TP24/TP19) Transport belt Aligning roller (Clutch/G28) Belt (324 pitch) (TP20)) (G27/G19) Aligning roller drive gear (G32/G19) Upper cassette feed roller (Clutch/G28) (G28) Belt (258 pitch) Lower transport roller (Clutch/G28)(TP15) Drum (G72) Belt (324 pitch) (G21) (G35) (G30) (G22) (G22)
Transport roller (One-way clutch/TP15) (One-way clutch/TP20) (TP30/G28) (G28)
ADU transport roller (G20)
(G28)
Lower cassette feed roller (Clutch/G28)
Drive system (Rear side view)
Dec. 1996 © TOSHIBA
6-1
2060, 2860/70 DRIVE
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6.3 Disassembly and Replacement
[A] Clamshell fulcrum bracket and pulley (1) (2) (3) (4) Remove the upper rear cover and the upper feed cover. Remove the clamshell fulcrum bracket (3 screws). Remove the 2 belts from the pulley. Remove the clamshell fulcrum pulley.
Clamshell fulcrum bracket
Clamshell fulcrum pulley
Belt
[B] Main motor (1) Remove the main motor (2 connectors and 2 screws).
Main motor
Connectors
[C] Main drive unit (1) (2) (3) Remove the drum tension bracket (1 screw). Remove the shaft bracket (1 screw). Remove the main drive unit (connector and 5 screws).
Connector
Drum tension bracket
Main drive unit Shaft bracket
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Dec. 1996 © TOSHIBA
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[D] Main drive unit gears (1) The developer-unit drive gear and the drum drive gear are press-fitted to their shafts.
Drum drive gear Dev-unit drive gear
Fuser drive gear
[E] Feed drive unit (1) Remove the LCF connector bracket (2 screws).
LCF connector bracket
(2)
Remove the clamshell fulcrum bracket and the feed roller bracket (3 screws) and then remove the pulley and belt.
Pulley
Belt
Dec. 1996 © TOSHIBA
6-3
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(3)
Remove the lower feed roller clutch (1 setscrew).
Clutch Set-screw
(4)
Remove the pulley and belt for the upper feed roller (1 stop-ring).
Pulley
Stop-ring
Belt
(5)
Remove the feed drive unit (3 screws). · This is easy to remove if the feed drive unit is slanted.
Feed drive unit
2060, 2860/70 DRIVE
6-4
Dec. 1996 © TOSHIBA
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6.4 Main Motor
6.4.1 Main motor drive
FG pulse Phase V
Wave shaping
Difference Phase comparator Voltage detection circuit Difference +
Reference frequency
Speed comparator
(F-MOT-REF) PLL-OK
Excitation phase switching section
Phase W Hall element A
Hall element B
Photointerruptor Phase U Hall element C
678
MAIN-CW/CCW MOT-BRK MAINMOT-ON
Lock protection circuit Rotation control Rotor position detection
Control signal
Main motor (M1)
(1) (2) (3) (4) (5) (6)
The LGC transmits control signals for main motor rotation. (MAIN-CW/CCW: Direction of rotation, MAINMOT-ON: Motor rotation command) The excited phase switching unit excites each phase on the main motor ¡ Main motor runs. Hall elements A to C are used to detect the rotation position of the motor (or rotor). The excited phase switching unit switches the excitation for each phase. (By repeating (2) through (4) above, the motor keeps running.) The FG pulse is generated by the FG pulse pattern and N/S magnets of rotor installed on the main motor. The phases and velocities of the FG pulse and the reference frequency from the LGC are compared, and the differences are added. Further to this are added the fluctuations in the supply voltage. (Signal generation)
(7)
Changes the switching timing for the excited phase switching unit to match the signal amount obtained in step (6). i.e. control is done to equalize the FG pulse and reference frequency. ¡ The main motor runs at a constant speed. (Locked range state.)
(8) (9)
When the main motor enters the locked range state, the excited phase switching unit transmits the PLL-OK signal to the LGC. ("L" level). When the MOT-BRK from LGC enters "L" level, the main motor rotation is braked, and when the MAINMOT-ON signal enters "H" level, the main motor stops.
Dec. 1996 © TOSHIBA
6-5
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6.4.2 (1)
Control signals MAIN-CW/CCW signal (LGC ¡ MOT: Input) Switches the rotation direction of the main motor. When this signal becomes "L" level, the main motor rotates counterclockwise as viewed from the rear side, and drives the developer unit, drum, heat roller, etc.
(2)
PLL-OK signal (MOT ¡ LGC: Output) When the cycle of FG pulse deviation from the reference frequency is within fixed range, this state is specified as lock range (normal rotation), and this PLL-OK signal becomes "L" level. Also, at this time, the LED "LP1" light comes on.
(3) (4) (5)
F-MOT-REF signal (LGC ¡ MOT: Input) This signal is a reference clock signal for the main motor to rotate at a fixed speed. MOT-BRK signal (LGC ¡ MOT: Input) When it becomes "L" level, the main motor rotation is broken down. MAINMOT-ON signal (LGC ¡ MOT: Input) This signal is main motor ON/OFF control signal, when it becomes "L" level, the motor rotates. Signal level of motor circuit. Signal MAIN-CW/CCW PLL-OK F-MOT-REF MOT-BRK MAINMOT-ON Brake OFF Motor OFF CW Speed is out of the locked range. "H" level "L" level CCW direction Locked range state. Brake ON Motor ON Reference clock
* The signal names indicate a level in the connector J543, respectively.
2060, 2860/70 DRIVE
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Dec. 1996 © TOSHIBA
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7.
OPTICAL SYSTEM
7.1 Functions
In this copier, the surface of the original is directly exposed to light, and the reflected light is conducted to the surface of the drum via the mirror, lens, and slit. The whole original image is reflected on the drum surface through the light source being scanned from the leading edge to the trailing edge. This area where functions as above are performed is called the optical section, located at the upper side of the copier.
Carriage 1 Original width indicator Optical fan
Original glass
Lens motor
Mirror motor
Lens unit Carriage 2
Mirror 6
Mirror unit Scanning motor Slit glass
Drum Optical system (front view)
Dec. 1996 © TOSHIBA
7-1
2060, 2860/70 OPTICAL
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7.2 Construction
The construction and purpose of the optical section are the followings: (1) Original glass The original is placed on this glass. Light from the exposure lamp exposes the surface of the original through this original glass. (2) Carriage 1 Carriage 1 consists of the exposure lamp, reflector, mirror 1, thermofuse, and light distribution adjustment plates, etc. Carriage 1 is scanned by the scanning motor. The relation between the scanning speed and the drum rotation speed is specified as follows. In actual-size copying, both speeds are the same. The reproduction ratio of the direction of paper transport (lengthwise reproduction ratio) is specified by this scanning speed being changed. In enlargement copying, the scanning speed is slower than the drum rotation speed, and in reduction copying it is faster.
Light distribution plates Reflector Thermofuse
Mirror 1 Exposure lamp
a. Exposure lamp The light source for exposing the original to light. b. Reflector The reflection plate for using the exposure lamp effectively. The sub-reflector is slit for optical path width cutting.
Original
Glass Sub-reflector Reflector Exposure lamp Mirror 1
2060, 2860/70 OPTICAL
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Dec. 1996 © TOSHIBA
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c. Mirror 1 The mirror for conducting the reflected light from the original to mirror 2 (mentioned later). d. Thermofuse Prevents the exposure lamp from an increase in temperature due to excessive lighting. e. Light distribution adjustment plates It is positioned to shield the light irradiated from the reflector on the surface of original, and adjusts the light intensity. If the positions for the installation of this adjustment plate at the front or rear side are shifted, and the light intensity is different at both sides, this may cause uneven light distribution. (3) Carriage 2 Consists of mirror 2 and 3, conducts the reflected light from mirror 1 to the lens via mirror 2 and 3. This is also scanned by the scanning motor in the same way as carriage 1. The scanning speed is half that of carriage 1. (The scanning distance is also half.)
Mirror 2
Mirror 3
Carriage 2
Dec. 1996 © TOSHIBA
7-3
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(4)
Lens unit It is driving by the lens motor. The reflected light from mirror 3 is reversed at the lens focus, and conducted to mirror 4 (mentioned later).
Lens
Lens unit
(5)
Mirror unit The mirror unit consists of mirror 4 and 5, and conducts the reflected light passing the lens to mirror 6 via mirror 4 and 5. This is driven by the mirror motor. Changing of positions of the lens unit and mirror unit alters the reproduction ratio of the vertical direction of paper transport (lateral reproduction ratio). When the distance of the light path is equal between the original surface and the lens focus and the lens focus and the drum surface, actual-size copying is obtained. When the former is longer, reproduction copying is performed, and when shorter, enlargement copying.
Mirror 5
Mirror 4
Mirror unit
2060, 2860/70 OPTICAL
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(6)
Mirror 6 Conducts the reflected light from mirror 5 to the slit.
Mirror 6
(7)
Slit (glass) The sub-reflector performs slit functions therefore the slit glass only protects the optical section from toner dust, etc.
(8)
Copy-area indicator unit This is located inside the original scale. This is for indication of the maximum area in which the copy can be made at that time. The indicator is driven by the document motor. The original range is indicated with the copy-area indicator and orange line on carriage 1.
Carriage 1
Copy area indicator
Original range where a copy can be made
Original scale
Original glass
Dec. 1996 © TOSHIBA
7-5
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7.3 Description of Operation
7.3.1 Scanning motor
Carriage drive wire
Carriage 1 Carriage 2
Tension spring
Scanning motor
Pulley
Pulley (Rear side)
Pulley
Pulley
The scanning motor rotation is transmitted to carriages 1 and 2 via the timing belt and the carriage drive wire. Carriage 1 and 2 are first moved to home position. The home position is detected when carriage 1 passes the home switch. When the PRINT key is pressed, carriages 1 and 2 scan the original.
7.3.2
Mirror motor/lens motor
Mirror motor
Mirror unit
Lens motor
2060, 2860/70 OPTICAL
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Dec. 1996 © TOSHIBA
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Lens motor Gear (G18)...motor axis
Mirror motor Gear (G18)...motor axis
Gear/pulley (G88/TP16)
Gear (G88/G10)
Timing belt (pitch length: 810)
Rack gear (G22)
Lens unit
Mirror unit
Immediately after the power is switched on: · · If the lens/mirror switch is on, the lens unit is transported to the exit side. Then the mirror unit is transported to the feed side, and it is positioned for actual size copying. If the lens/mirror switch is off, the switches are turned on by the lens unit, then the mirror unit in that order and both units are positioned for actual-size copying. When the reproduction ratio is se