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e-STUDIO160/200/250 Service Manual

1. CN6 24 1 41 LI 24 2 a2 N 1 43 2 4 3 B 5 427215 4 6 4 46 5 PG 7 1 17 6 PG 8 48 NC 7 5V 9 4 4 9 8 D A 10 4 410 9 11 4 4 10 REGST ACK 12 477 412 11 ADF VALID DFFAN 13 4 413 12 Option 5VPS 14 Jc rua NC 18 EMPTY 15 4 15 14 DF OPN 16 416 15 COVER RXD 17 417 16 18 418 17 WIDTH TXD 19 419 18 sa 20 420 19 21 421 20 SIZE2 DF REQ 22 422 21 ADF 23 4 23 22 RADF CNT 24 424 NC 506 25 4235 NC 26 426 FG 1 1 1 4 1 1 EE IC lt lt lt 11 2 2 1 c a ASD AUD CND ME SE SAD MJD models NC 5 1 4 6 NC 6 omm 3 pog 7 7 2 APS 1 07749 1 1 1 49 410 NC greci 1 j 4 12 RADF i q 18 CN Option CN13 IE 4i4 1 5 1 2 APS 2 27 415 2 SENS 2 1 1 I i 4 16 NC 3 PWA F SLG calis 1 kisasi 4 i 2 2 5 4 T bw 5 SENS2 5 pam 19 6 6 1 20 7 1 1 45V 7 i 3 8 8 2 APS 3 9 9 1 q 428
2. E CN15 1 2 CN21 1 2 CN15 2 2 CN21 2 2 FDS2ON 1 1 71 71 CINVDO1 2 2 72 72 SG 73 73 STH 4 4 CCON 74 74 JFLS1ON 5 5 pwr 75 75 JFLS20N 6 6 TCHON 76 76 JPOSON 7 7 TCVR 77 77 JcosoN 78 78 JCONECT 9 9 79 79 10 10 SPDVR 80 JJAMSW 11 11 SG 81 81 JPASSW 12 12 PGON 82 82 FSELECT 13 13 SG 24 14 14 BAFANL 84 84 LSUSV 15 15 LUMON 85 85 16 16 PMCLK 86 86 17 17 PMSTS 87 87 PWA F RLY JSSON 18 18 PMTON 88 88 2 10 6 19 19 DELON 89 89 RRCON 20 20 DELRET 90 90 TSMON 21 21 PUFRET 91 91 PUCON 22 22 PUFDEL 92 92 COS10N 23 23 DTH 93 93 MREQ 24 24 TES 94 94 PFTXD 25 25 OFSET1 95 95 26 26 PFCDET 96 96 27 27 97 97 PFREQ 28 28 BAFANON 98 98 29 29 MPSS3ON 99 99 DFDS 30 30 MCONECT 100 100 OPRSTX 81 81 FCOSON 32 32 pss3 33 33 PWA F MAN SG 34 34 PWA F RLY PWA F MAN 10 14 PWROWN 35 35 1 10 11 14 2 FDS10N 36 36 LPSON 37 37 PESON 38 38 MMBRK 39 39 MMDIR 40 40 MMFG
3. 3 4 180 deg rotation e STUDIO160 200 250 PAGE MEMORY BOARD 18 10 December 2002 TOSHIBA TOSHIBA TOSHIBA TEC CORPORATION 1 1 KANDA NISHIKI CHO CHIYODA KU TOKYO 101 8842 JAPAN
4. F0 lens Equidistant 09 02 06 Fig 8 2 3 plane is tilted Deviation 09 02 07 Fig 8 2 4 CD APC control function for compensating disparity in the laser intensity caused by temperature Laser ON OFF generating function 3 Function for generating synchronizing signals in the primary scanning direction e STUDIO160 200 250 PRINTING December 2002 TOSHIBA TEC 8 3 Laser Diode The laser used in this copier is a GaAIAS type semiconductor laser This semiconductor laser outputs in the single horizontal mode and its oscillation wavelength is about 780 nm This semiconductor laser is powered by a 5 V DC power supply and its optical output is controlled to about 1mW Output of a PIN diode for monitoring light output built into the semiconductor laser is used for controlling this The semiconductor laser has the optical forward output current and monitors the current character istics shown in the figure on the right Emission of light is started when the forward rent reaches or becomes greater than the thresh Low temp old current A monitor current proportional to the Optical Output mW optical output is output These threshold currents Forward current and monitor currents are each disparate due to the Monitor current characteristics of each of the semicond
5. PWA F PCL Option 2 2 PC Fig 17 1 2 17 2 17 01 02 December 2002 TOSHIBA TEC CN9 ODO 003 004 005 006 OD7 5IOCSOX 9 OPIOWRX 10 OPIOIRDX 11 PWA F MAN 2 13 5 14 OA3 14 4 15 16 OPRESETX 17 18 12V 19 5V 20 5 21 SG 22 SG 23 PWRVSLED 24 PWRSVKEY 25 5VPS 26 December 2002 TOSHIBA TEC 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 CN60 PWA F PNL TO LCD1 SD FLM NC LP SCP 5V SG 12V CN61 VREF vo GREF CN62 LED5X LED4X Sws2 Sws3 SWS4 SWS5 SWCO SWC1 SWC2 SWC3 SWC4 SWC5 SWC6 SWC7 SWC8 SWC9 SWC10 SWC11 SWC12 SWC13 SWC14 o LCD1 LCD UNIT 11 12 13 14 15 16 Ae 18 19 20 21 22 PWA F VR TO Fig 17 1 3 22 21 20 19 18 17 16 15 14 13 12 11 Moo BOO Oo CNe3 PWA F OTK Option 17 01
6. CN172 CN52 SG 1 2 FCOSON 2 FRCOV SW 17 01 13 Fig 17 1 13 December 2002 TOSHIBA TEC 17 13 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS CN11 5V A1 A3 A5 A7 DO D2 04 06 5IOWRX IOCS11X 5V PWA F MAN SG 13 14 50 5V A2 A4 A6 A8 D3 D5 D7 5IORDX 5RESETX 45V IPCDET co o m ER a E PWA F IPC e STUDIO 200 250 series Option a o 24VF2 PWA F RLY PG 9 10 5V Bons 17 01 19 Fig 17 1 14 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS 17 14 December 2002 TOSHIBA TEC December 2002 TOSHIBA TEC CN16 45V COINVDI1 COINVDI2 NC PWA F MAN COINVDO2 14 14 gt COINVDOs COINVDO4 COINVDO5 COINVDO6 COINVDO7 COINVDO8 ANOaRWND zx ck Zo m CN42 24V PWA F RLY ON 10 10 PG for Coin vendor 17 01 20 Fig 17 1 15 17 15 e STUDI
7. Blue or Red Fig 12 6 3 December 2002 TOSHIBA TEC 13 CLEANER SECTION 13 1 13 1 General DescripliOri emi cent robin qu iade mailed 13 1 13 2 uenis oa CI ipea cibo den Dr EUR OPE PEL 13 1 13 3 Drive Descriptio eon de t a 13 2 13 4 Function of Each Part 13 3 13 CLEANER SECTION 13 1 General Description The cleaner unit removes the residual toner from the drum surface and carries it to the toner bag of the toner cartridge 13 2 Construction Cleaner paddle o Recovery blade Toner recovery auger Toner cartridge Drum Process unit a 13 02 01 Main blade The cleaner section consists of the following parts Mainblade Recovery blade Cleaner paddle Toner recovery auger December 2002 TOSHIBA TEC 13 1 e STUDIO160 200 250 CLEANER SECTION 13 3 Drive Description Toner recovery auger drive gear Cleaner paddle drive gear Drum gear Drum 13 03 01 The cleaner paddle and toner recovery auger turn as the rotation of the drum is transmitted to them through each gear Drum Cleaner paddle drive gear Cleaner paddle Toner recovery auger gear Toner recovery auger e ST
8. Symbol Name Function Remarks EXP EXPO LAMP A light source lamp for document scanning D 2 Exposure lamp HL1 U900 HL Fixes toner to the paper D 1 Heater lamp U900 NAD SAD models HL2 E400 HL Fixes toner to the paper D 1 Heater lamp E400 ASD AUD CND MJD models HL3 E500 HL D 1 Heater lamp E500 DH1 SCN DH 115 Dehumidifies the inside of the scanner D 2 Scanner dump heater SAD model SCN DH 230 Dehumidifies the inside of the scanner Scanner dump heater ASD AUD CND models DLE PWA F DLE Removes residual charge on the drum D 2 Discharge LED PWA surface In Process unit 8 Transformers Symbol Name Function Remarks HVPS PS HVPS PWA which generates high voltage power A 1 High voltage power supply unit 9 Others Symbol Name Function Remarks LVPS PS LVPS US PWA which generates DC power A 2 Switching power supply unit NAD SAD models PS LVPS EU PWA which generates DC power A 2 Switching power supply unit ASD AUD CND MJD models FUS PWA F FUS PWA which relays AC power to each damp A 1 Fuser relay PWA heater ASD AUD CND SAD models December 2002 TOSHIBA TEC 2 17 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 4 Copy Paper Path 2 4 1 Normal 02 04 02 2 4 2 When the PFU PFP ADU SFB and OCT are mounted
9. 14 6 14 6 2 Temperature detection by the thermistor 14 9 14 7 Disassembly and Replacement 2 2 1 14 10 14 FUSER UNIT EXIT UNIT 14 1 General Description The fuser unit applies heat and pressure to a toner image formed on the paper to fix it to the paper The paper exit unit transports the paper for which the fusing process has ended to the paper tray cover 14 2 Construction Exit unit Exit roller Pinch roller Fuser thermostat 2 Exit guide Exit sensor Separation claw Fuser thermostat 1 EN Heater thermistor Heater roller The fuser unit consists of the following parts Heater lamp Heater roller Pressure roller Separation claw e Cleaner fuser roller Heater thermistor e Fuser thermostat 1 2 The exit unit consists of the following parts e Exit roller e Pinch roller Exit guide Exit sensor December 2002 TOSHIBA TEC 14 1 Fuser unit Pressure roller Cleaner fuser roller Heater lamp 14 02 01 e STUDIO160 200 250 FUSER UNIT EXIT UNIT 14 3 Drive Description Exit drive gear 2 Exit unit Exit drive gear 1 Exit drive gear 3 HR drive gear 1 Exit drive gear 7 Fuser unit Pressure roller Cleaner fuser roller HR drive gear
10. 1 5 ODHOPS VET 1 6 Replacement 5 1 6 eam RNC ae sere es 1 7 1 SPECIFICATIONS ACCESSORIES OPTIONS SUPPLIES 1 1 Specifications e Copy process Indirect electrophotographic process dry Ee Desktop type console type when the paper feed pedestal and Large capacity feeder are installed e Original table Fixed table the left rear corner used for standard original placement Acceptable originals Type sheet book and 3 dimensional object However the automatic document feeder option only accepts sheets of paper Multi sheet 50 105 or 13 29 Ib Single sheet 105 127 g m or 29 34 Ib excluding carbon paper pasted sheets and stapled sheets Max size A3 LD Copy speed e STUDIO160 series Copies min Paper Upper PFU PFP LCF Bypass feeding SFB supply Paper cassette Upper Lower cassette No paper size Paper size size cassette with CM designated designated A4 LT 16 16 16 9 16 A4 R 12 12 12 9 12 LT R 13 13 13 9 13 B4 11 11 11 9 11 LG 11 11 11 9 11 A3 LD 9 9 9 9 9 e STUDIO200 series Copies min Paper Upper PFU PFP LCF Bypass feeding SFB supply 5 Paper cassette Upper Lo
11. V9 944 5 3 e uondo i P 1 gt ned p LRV OIN J viMd COWON 5 1 LOV NVIA VMd m D L 01 v5 inv3od HHVMd 12 4 1 aka eee Jen 9 8X uawvo java 1 7 vo i 1 dav 2 2 0 91 1 lt gt 1 2 11 4 0901 09 0801 09 1 1 5 x 1 LWAWWMd O 9L mo eses 2 29 255 1 1 ee eee i Er 5 Hy wr 2 WOH used WvHS ed ese L Jayeauog Jauueog 1 eel 2 SSS December 2002 TOSHIBA TEC 2 20 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 6 Removal and Reinstallation of Covers and PC Boards 2 6 1 Removal and reinstallation of covers A Rear cover 1 If a STP 1600 is attached to the copier disconnect the power cable 2 Detach the manual pocket 3 Remove 9 screws and detach rear cover B Top cover 1 IfanOriginal Cover KA 1600PC ADF MR 2012 orthe RADF
12. 03016 e STUDIO160 200 250 COPYING PROCESS 3 6 December 2002 TOSHIBA TEC 8 Fixing The toner on the paper is melted by applying heat and fixed on the paper Pressure Method Melting point of the toner main com ponent resin is 100 110 A heat roller with a surface tempera ture melts the toner Paper 03017 Fig 3 2 15 plus Separation claw Pressure A pressure roller pressured by a pen Heat roller spring solidifies the toner 0 V Heater Fixing Heat and pressure are applied to the lamp paper going through the two rollers Ne Direction of paper The toner the paper becomes movement roller fixed 03018 Fig 3 2 16 9 Cleaning This process collects any toner remaining on the drum R Method The edge of a urethane rubber Main blade blade main blade is placed against adem the drum surface Rotation of drum 03019 i Fig 3 2 17 This blade scrapes off the remaining toner from the drum Another blade collects the scraped toner recovery blade The drum surface is cleaned December 2002 TOSHIBA TEC 3 7 e STUDIO160 200 250 COPYING PROCESS 10 Discharge Erases any electric charge remaining on the Discharge LED array drum after transfer If discharge is not performed The electric charge remains on the drum sur The potential of the drum surface b
13. 11 12 13 14 CN35 24 24V PG PG 5V SG 14 13 12 11 10 CN154 CN165 OCF SEN CN163 OCF CLT e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS CN201 CN202 PWA F PFC Option CN205 PFUFD SW 45V PFUFDCLT 24 CN203 FDM D FDM B FDM C FDM A CRT DOWNA ADUFL ADUFU ADUCOVSW EXM A EXM C EXM B EXM D CN204 24 24 CN208 PFUPEMP 45V PFUTUP 45V PFUPCLT 424V 45V SIZPFU1 SG PFUCNT NC SIZUPFUO PFUCOV PFUTRM A PFUTRM B NC CN206 NC CLK C CLK B SCSW C DRV7 DRV6 DRV5 DRV4 DRV3 DRV2 DRV1 DRVO PFPRST 5V SG SIZE 0 SIZE 1 SIZE 2 SIZE 3 RETS 0 RETS 1 RETS 2 RETS 3 RETS 4 RETS 5 RETS 6 RETS 7 SCSW B NC LCFCNT CN207 24 24 PG PG CN323
14. Duplex print 25 m e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 18 December 2002 TOSHIBA TEC 2 4 3 When the PFU PFP CM ADU SFB and JSP are mounted ee Duplex print 02 04 04 2 4 4 When the PFU LCF ADU SFB and Finisher are mounted E Duplex print 02 04 05 December 2002 TOSHIBA TEC 2 19 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 5 System Block Diagrams euoudejei lt NLSd en 190 1 1 113 61 lt 1 1 K gt r 4 seues 052 002010015 1 seues 062 002010015 201 1 nav nsi ds 4 yno 93009 191982 Wvus gt jeuenuo 9 lt 1 feng HAN A1H VMd fiaw ans Y aw WOH usel4 WOH used gep 545 vo 103000 92 OLY 92
15. OUT6 1 Pinch roller 5 Separation charger PS HVPS OUT4 o o Transfer charger OUT3 OUT2 OUT1 CN27 5V DTHA TES NC NC Process unit AUNI CN54 24 1 DEL 2 PUF 3 PWA F RLY 5 10 CN53 CNi9 45V 1 1 1 DTHA 2 2 2 DRM THM CN29 MMTR ON NC MMTR RFL PLL OK 5 CN28 VM PG PG VM VM n CN30 MMTR ON MMTR BRK MMTR RFL PLL OK i 5V MMTR DIR MMTR FG wo o00zuo e STUDIO 200 250 series 17 01 18 Fig 17 1 10 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS 17 10 December 2002 TOSHIBA TEC CN304 CN31 SG 1 12 MPFCON 2 11 24 3 10 SG 4 MPESON 5 6 7 8 9 45V MPSS30N 5520 5510 MPSSOON 10 SG 11 MCONECT 12 SFB Option ONDARON 11 12
16. 2nd cassette Paper feed unit PFU MY 1015 MY 1015 N EI 3rd cassette Paper feed pedestal PFP KD 1009 KD 1009 N 4th cassette Cassette module CM MY 1017 MY 1017 N for e STUDIO200 250 series Fig 1 5 1 L1 LCF for e STUDIO200 250 series Paper size A4 LT Large capacity feeder KD 1010 KD 1010 N 01 05 01 e STUDIO160 200 250 SPECIFICATIONS 2 2 1 2 2 2 3 2 4 2 5 2 6 OUTLINE OF THE MACHINE 2 1 Sectional VIEW 2 1 Electrical 2 5 Symbols and Functions of Various 2 13 Copy Paper coe cde enda dE pU REM ease 2 18 2 3 2 18 242 When the PFU PFP ADU SFB and OCT are mounted 2 18 243 When the PFU PFP CM ADU SFB and JSP are mounted 2 19 244 When the PFU LCF ADU SFB and Finisher are mounted 2 19 System Block Mariel as 2 20 Removal and Reinstallation of Covers and PC Boards 2 21 2 6 1 Removal and reinstallation of covers 2 21 2 6 2 Removal of PC boards 2 29 2 OUTLINE OF THE MACHINE 2 1 Sectional View A Front view 11
17. O i wz Fd ae O cne 8 88 boet gu M y r EERE 4 z 5 1015 LV244 Lu 25 el 3 o n 1 SL 5 8 2 ER 5 ge 22 H 28 8 2 p 0 2 PCB CONTROL 1 7 e T5 8 p aes xi 94 0 TP42 E 5 ICA LV244 EI us gt S Be E DAG amp DAS E DA amp t pag E N 5 29 5 us pILzLIIIcIc 2 16 16 C 2 7 eeepc ie 1 n 16 06 01 December 2002 TOSHIBA 16 5 e STUDIO160 200 250 PC BOARD 16 7 PWA F FUS ASD AUD CND SAD models PWB F FUS AT TOSHIBA 301514000 VIL ASCI VIL A0SC VIL ASC VIL A0S MADE IN JAPAN 16 07 01 e STUDIO160 200 250 PCB BOARD 16 6 December 2002 TOSHIBA TEC 17 WIRE HARNESS CONNECTION DIAGRAMS 17 WIRE HARNESS CONNECTION DIAGRAMS 4 RAR CN9 US CN4 EU CN6 2 2 CN101 2 2 Tx1 1 1 PM10D4 31 31 2 2 PM10D6 32 32 PM10D8 33 33 4 4 PM10D10 34 34 Nc 5 5 10012 35 35 ATT3DB1 6 6 10014 36 36 RLADJ11 7 7 37 37 RLADJ21 8 8 ODREQ1 38 38 NC 9 9 2WRESETX 39 39 SG 10 10 B
18. ODO 7 December 2002 TOSHIBA TEC 5 17 e STUDIO160 200 250 DISPLAY UNIT 2 The circuit is controlled ad shown below The transistor connected to the LED anode is ON 2 The output connected to the cathode of the LED is the level L The LED comes ON when both 1 and 2 above are satisfied 016 Cb L125HZO 28C411B L125HZ1 25 411 D9 A 08 9 2 x N 9 5 x D6 R N N Q ES D5 N N QAO N x D2 g M X LED1 x RO x LEDO R x x Q e STUDIO160 200 250 DISPLAY UNIT 5 18 December 2002 TOSHIBA TEC 6 6 1 6 2 6 3 6 4 6 5 IMAGE PROCESSING Image Processing s see id exocossi Hag en ER ttn 6 3 2 Functions of the image processing circuit 257025 1114 T TT bd aiv RA NAR RR UNE VIR Du ridi 6 IMAGE PROCESSING 6 1 Introduction The following diagram shows the processes on the digital copier from the scanning of the original up to transfer onto the photosensitive drum Scanner Image processor Printer Original Shading Image Image processing control processing Print control ASIC ST LOUI
19. 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 PWA F MAN AU1 PWA F RLY AU1 Option 1 2 CN14 2 2 PCIFD2 PCIFDO SELECT BUSY NSELIN NINIT NSTROB OPOEX DPOD14 DPOD12 DPOD10 DPOD8 DPOD6 DPOD4 DPOD2 DPODO DPOA15 DPOA13 DPOA11 9 DPOA7 DPOA5 DPOA1 DPORESX OEPX WAIT PWA F MAN RBDINX 9 14 CN17 5VPS 5VPS 5VPS 45V 45V 45V SG SG Fig 17 1 5 17 5 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 ooxoosromzo o 100 o PWA F MAN AU1 PWA F RLY AU1 Option 2 2 17 01 05 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS
20. Registration drive gear Registration roller clutch Cassette feed gear 1 Q Cassette feed gear 2 Timing belt 309 Pickup clutch O N Cassette feed gear 3 Cassette feed gear 4 Cassette feed gear 5 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 4 December 2002 TOSHIBA TEC 2 2 Location of Electrical Parts A 1 Boards 1 Option 2 Option 02 02 01 FUS ASD AUD CND SAD models HVPS PIF December 2002 TOSHIBA TEC 2 5 e STUDIO160 200 250 OUTLINE OF THE MACHINE A 2 Boards i LCD LE LDR LVPS 02 02 02 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 6 December 2002 TOSHIBA TEC B 1 Sensors switches and clutches 5 3 5 5 5 2 5 1 ASD AUD CND SAD MJD models APS 6 NAD model SENA SENS CL1 02 02 03 CL2 e STUDIO200 250 series December 2002 TOSHIBA TEC 2 7 e STUDIO160 200 250 OUTLINE OF THE MACHINE B 2 Switches _ 4 m s A D 75 Skee 02 02 04 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 8 December 2002 TOSHIBA TEC B 3 Sensors switches and clutches SS 5 SENG 1 02 02 05 SEN7 CL3 December 2002 TOSHIBA TEC 2 9 e STUDIO160 2
21. in duplexer iClose duplex unit A 7 7 Fig 5 2 9 Misfeed in duplexer ADU December 2002 TOSHIBA TEC 5 11 e STUDIO160 200 250 DISPLAY UNIT 01 peoejd y uJnjeJ ex Y 885944 777 uoneJedo doo 10 uoneedo Kdoo eui dogg memes uoneedo Kdoo Uonipuoo y se dojg Je9 euj jo uonoun uoneJedo Adoo Buunp eunsodxe y piony Janes 1edng y Aq unipuoo Janes uoneJedo eu uoneoipul Jo uonoe 7 x 3 x E ui 3 z 2 peoejdeJ 1 5 2 peuuuuef jenue A 5 3 Relation between Copier Conditions and Operator s Actions JO 39e Jaded yoe 1 4 dn uueAA Koy Koy Koy shoy shoy Koy 1dnueyu H3dVd 310 NOILONN dOLS HV31O LYVLS December 20
22. NVU AONO CN32 CN157 COS10N 1 2 SG 2 1 TC SW CN33 CN156 FDS10N 5V SG DHPON 5V 2 FED SEN I NC NC r NC CN179 CN45 CN173 SG 1 3 1 3 FDS20N 2 2 2 2 EXT SEN FDSLED 3 1 3 1 CN34 FANH 1 2 1 FANL 2 1 2 PWA F RLY 6 10 CN37 CN181 SG 1 24 2 LPSON 3 PUCON 4 5V 5 6 7 8 9 T UP SEN CN182 LUMON 24V PESON 24V 10 45V 11 PRCON 12 2 PE SEN CN180B CN180B CN183 PU CLT UU CN164 T UP MOT CN155 RGST CLT CN38 NC 1 CN159 CASSETTE 2 2 SG 3 1 CST SW 17 01 11 Fig 17 1 11 December 2002 TOSHIBA TEC 17 11 5 010160 200 250 WIRE HARNESS CONNECTION DIAGRAMS CN36 PFCDET sa 24VCHK PFCRST RSTPR RGTST EXIT SW PSTP 1 PFRXD PFREQ PFACK MACK PF PFTXD MREQ PF PWA F RLY 7 10
23. 5 1 Items Shown the Display Panel 22222 5 2 5 2 1 Display during normal 5 2 5 2 2 Display in the event of faulty conditions 5 4 Relation between Copier Conditions and Operator s Actions 5 12 Description of Operation 5 13 5 41 Dot matrix LCD circuit uses le 5 13 542 display 5 17 5 DISPLAY UNIT 5 1 Detailed Drawing of the Control Panel and the Display Panel The display unit consist of key switches for copier operation selection of each mode LEDs and a LCD displaying the copier state or message When the operator s attention is needed a graphic symbol and a message indicating that particular con dition is Displayed in the LCD panel COPY PRINTER MAINMENU PROGRAM INTERRUPT SUPER ENERGY SAVER E RE i DEF FUNCTION CLEAR ZOOM CLEAR STOP E 5 OOO PAPER SUPPLY DOO LIGHT DARK MZ SET 9 IMAGE MODE O O 0 TEXT PHOTO Layout of the control panel Misfeed in _copier Open lower cover s Misfeed in copier any misfeed A paper from copier Misfeed in copier iCl
24. 12 6 12 5 3 Toner supply MOtOF 12 7 12 6 Disassembly and Replacement 222222 12 8 12 DEVELOPER SECTION 12 1 General Description The developer unit converts an electrostatic latent image on the drum surface to an image visible to the naked eye 12 2 Construction Toner cartridge auger Doctor Toner cartridge Auger Lm SES Agitator Toner empty sensor The developer section consists of the following parts Magnetic roller Doctor Agitator Auger Toner empty sensor Toner cartridge auger Drum Magnetic roller Process unit 12 02 01 December 2002 TOSHIBA TEC 12 1 e STUDIO160 200 250 DEVELOPER SECTION 12 3 Drive Description 1 Magnetic roller agitator and auger Developer drive gear 4 Developer drive gear 2 Developer drive gear 5 Developer drive gear 1 PU pulley Agitator drive gear Magnetic roller drive gear 12 03 01 Developer drive gear 3 1 Auger drive gear Developer drive gear 3 Developer drive gear 8 Developer drive gear 7 12 03 02 Developer drive gear 6 e STUDIO160 200 250 DEVELOPER SECTION 12 2 December 2002 TOSHIBA TEC The magnetic roller agitator and auger turn as the driving force of the main motor is transmitted to them through each gear PU coupling Main motor drive assembly PU pulley Developer drive gear 1 Developer drive g
25. blank Original absence Original cover sensor OFF Following judgement is performed by the APS sensor output signal Size decision The scanner MPU IC1 sends the detected document size to the Main PWA as a size signal Size not fixed The scanner MPU sends a no document signal to the Main PWA The carriage 1 is stay on the standby position even though the reproduction ratio is changed when original size is changed Original cover sensor SW ON Keepthe recognized original size or no original state just before the original cover sensor is turned on regard less the APS sensor output signal e STUDIO160 200 250 SCANNER 7 16 December 2002 TOSHIBA TEC 7 8 Damp Heater Control Circuit ASD AUD CND SAD models When the machine is stopped for hours the scanner damp heater heats the inside of the scanner to prevent dew condensation on the original glass inner side surface mirror lens and shading correction plate The scanner damp heater operates on AC power input from the entrance to generate heat A scanner thermostat is connected to the AC power supply line in series with the scanner damp heater The scanner thermostat detects the temperature inside the scanner unit and supplies or shuts off the AC power to the scanner damp heater according to the detected temperature The scanner thermostat turns ON at 22 4 C or under and turns OFF at 30 4 C or above The AC power from the entrance is always delivered while this machine is
26. 1 15 1 2 14 2 3 18 3 4 12 4 5 11 5 6 10 6 7 9 7 8 8 8 9 7 9 10 6 10 11 5 11 12 4 12 ADU 13 3 18 Option 14 2 14 15 1 15 CN324 1 4 1 2 3 2 3 2 3 4 1 4 A1 A2 A3 A4 A5 A6 A7 A8 A9 NC 10 NC A11 NC PFU B1 Option B2 NC B3 B4 B5 B6 B7 NC B8 B9 B10 NC B11 CN500 Ai NC 1 1 2 515 A4 7 7 5 9 9 A6 A7 13 13 15 15 A9 17 17 A10 19 19 21 21 A12 23 23 A13 25 25 A14 27 27 15 29 29 B1 30 30 B2 28 28 B3 26 26 B4 24 24 PFP LCF B5 22 22 Option B6 20 20 B7 18 18 16 16 14 14 B10 12 12 10 10 12 8 13 6 6 B14 NC 4 4 B15 2 2 CN501 1 2 2 2 3 4 414 Fig 17 1 12 17 12 17 01 12 December 2002 TOSHIBA TEC CN39 VM TSMON NC TS MOT CN322 CN41 OFFSET2 OFFSET1 PG 24V JSSON JFLS2ON JOB JAM JCOSON JOB SW F SELECT JCONECT FLS1ON 45V JPOSON a EN co E o o 400 gt JSP OCT Bridge cover Option e a CN47 PWA F RLY 5 8 10 SP Speaker CN50 FANH FANL FANH FANL CN170
27. 30 PCFWENA 2 777 ninit 31 3 wu nFault 32 2WNINI 4 NC 33 NACK 5 1 NC 34 PEERR 6 35 NFAULT 7 on nSelectin 36 PCIFD6 8 1 PCIFD4 9 PCIFD2 10 PCIFDO 11 SOM 1 22 aa 3 14 ERROR 14 1 Yep lds 1 SELECT 56 COMREQPCL 16 PCIFDS 58 DBoA 48 PCIFD3 59 1 PCIFD1 60 DPOAS 20 1 POWER 61 DPOAT o4 4 TXDPCL 62 DPOAE 55 n RXDPCL 63 55 2571 PCLVD 64 DPOAL 4 DOTCLK 65 DPOD15 25 777 DPOATG 06 020513 26 se DPOA14 67 27 12 68 DBODO 26 PWA F PCL DPOA10 69 DPOD7 29 Option 70 DPODS 30 1 2 DPOAS 71 DPODS 53 4 72 DPOD 32 73 DPORESX 33 DPOAO 74 NC 34 DPOD14 75 55 DPOD12 76 RBDINX 36 PWA F MAN pieds i G PSEL 37 4 14 DPODe 7 5V 38 9 225 4 eyes 26 DPOD2 81 DPODO 82 5642 83 BODE 25 DPORWX 84 SG aa INTPRX 85 salds PCLSET 86 48 G PCHK 87 47 5 88 SG 48 45V 89 GG 46 5VPS 90 sa 5VPS 91 PCDIR 51 50 92 NSTROB 52 36 93 NINIT 53 Sa 94 NSELIN 54 95 BUSY 55 56 96 97 98 99 100 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS
28. 41 41 MMCLK 42 42 MMSYNC 43 43 MMON 44 44 LUMON1 45 45 m MPFCON 46 46 8 z O INN MPESON 47 47 5 MPSS20N 48 48 MPSSOON 49 49 MPSS10N 50 50 FANDET 51 51 FANH 52 52 FANL 53 53 PWA PDV PSFANDET 54 54 PSFANON 55 55 SPEAKER 56 56 HTONO 57 57 HTON1 58 58 CN169 5VPS 60 60 LPWR 1 1 61 SH 2 2 VIDEOX 3 3 3 3V 63 63 LDENX 4 4 4 Solea led 5 5 PWA LDR les LSUSV 6 6 12V 66 66 SG 7 7 12 67 67 HSYNC 8 8 68 5V 69 69 5 70 70 LSU DX 17 01 06 Fig 17 1 6 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS 17 6 December 2002 TOSHIBA TEC 4 SIDTAO 1 1 1 20 SIDTA1 2 34 34 2 12 2 19 SIDTA2 2 28 3 18 SIDTA3 4 38 3314 ost 4 17 SIDTM 5 3 5 5 16 SIDTAS 6 32 32 6 0 2 6 15 SIDTA6 7 4 4 7 SGND 7 14 SIDTA7 8 31 31 8 CCDCP 8 18 SCDCLK 9 5 5 9 SGND 9 12 SHDEN 10
29. JSP 5001 OCT MJ 5002 is at tached to the copier detach it PU contact 6 Detach the toner cartridge and the process unit Detach rear cover See Fig 2 6 1 Detach ozone cover See Fig 2 6 9 Fig 10 3 8 Detach paper tray cover See Fig 2 6 10 033 10 Detach upper right cover R See Fig 2 6 14 e STUDIO160 200 250 DRIVE SYSTEM 10 8 December 2002 TOSHIBA TEC 15 Remove paper guide B and side cover as sembly See Fig 2 6 15 and 2 6 16 Remove PWA See Fig 2 6 28 Remove high voltage power supply See Fig 2 6 29 and 2 6 30 Remove main drive gear assembly See Fig 10 3 1 to 10 3 4 Detach the harness and remove PU contact Note If contact is found dirty clean with a cotton 16 17 swab Detach the relay connector and remove 7 screws Pull outthe PU contact harness through the hole Fig 10 3 11 release 2 tabs and remove PU guide assembly D Registration roller December 2002 TOSHIBA TEC 10 Open ADU MD 0101 if it is attached Detach the toner cartridge and the process unit Detach upper right cover R See Fig 2 6 14 Loosen one screw remove bushing plate and detach the relay connector Detach 2 stop rings slide bushing in the direc tion of the arrow and remove registration roller assembly Connector Harness PU guide assembly Stop ring Registration roller
30. LED12 LED11 LED10 LEpe LED19 LED18 LED17 LED16 y E00010 E0001E WR SRAM LCD controller i LCD 240 x 64 DEC A1 A4 IORD IOWR OP ASIC FOR POWER SAVE MODE lt SW gt LED December 2002 TOSHIBA TEC 5 15 e STUDIO160 200 250 DISPLAY UNIT 4 LCD Controller Block Diagram Address Main board System Data Resister lt gt Bit check control Attribute control Line Line memory control Y Address SRAM SRAM Data control Clock Timing generator IB gt aaa SCP gt 5 Data Transmission Method 64 1 CPI LP 240 ZEN 2 3 240 2 CP2 SCP Ed cup nus xij 48240 11 1 2 1240 X iX 21 63 64 1 2 cae JL JL JL fL Ul X 1 240 1 240 X X2 1 240 X X X_X 4 0 220 X X HM e STUDIO160 200 250 DISPLAY UNIT 5 16 December 2002 TOSHIBA TEC 5 4 2 LED display circuit 1 Timing chart of LED display READ WRITE 1 4 lt IOCSOX IORDX IOWRX
31. When using original cover Timer off No message is displayed in the display panel Press the any key to clear e STUDIO160 200 250 DISPLAY UNIT 5 2 December 2002 TOSHIBA TEC POWER ON Please wait Walk up screen Yes Copy No 1 PAPER FINISHING NONSORT AUTO 200 100 Walk up screen Fax No Walk up screen Yes 2 ENTER TEL NUMBER MAX128 Jan15 2003 11 30am M 100 RESOLUTION STANDARD AUTO COMM OPTION w Yes SCAN Note Fig December 2002 TOSHIBA TEC 3 ENTER E MAIL ADDRESS 256 15 2003 11 30am M 100 GI AUTO RESOLUTION Scan does not exist when GA 1031 GD 1061 GF 1110 and GD 1070 are not attached 5 2 1 Wait warming up e STUDIO160 200 250 DISPLAY UNIT 5 2 2 Display in the event of faulty conditions Displayed when it is time for preventive maintenance and inspection Capable of copying No Message Condition of machine Notes 7 Cassette 1 empty Indication of lack of paper e Supply paper to the selected Indicates when there is no paper cassette in cassette A in Fig 5 2 2 Select another cassette Bypass copying is possible 8 Toner empty Indication of lack of toner Reset after the toner is supplied Bin Fig 5 2 3 is displayed and the front cover is closed when the toner in
32. harness through the groove of the fuser unit See Fig 14 7 1 1 3 Pass the heater lamp harness through the space between the top and bottom of the ribs See Fig 14 7 1 2 4 Connect the heater lamp harness and then connect the heater thermistor har ness At this time pass the heater lamp harness through the right of the heater thermistor harness and push it inside See Fig 14 7 2 5 The colors of the harnesses of the fuser connector and relay connector are as shown in the figure on the right See Fig 14 7 3 e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT Boss N VERRE EL ES ue w Screw Heater thermistor harness 085 Heater lamp harness Heater lamp harness Heater lamp Heater thermistor harness harness Fig 14 7 2 985 NAD SAD models ASD AUD CND MJD models Black White Black White White Relay j 0 Relay connector d connector Fuser Fuser connector connector White Black White Black White Fig 14 7 3 02 14 10 December 2002 TOSHIBA TEC Note With the e STUDIO 160 series after attach ing the fuser unit confirm the continuity be tween the screw fixed in the front side and main frame with the multi meter as shown in right B Heater thermistor 1 Remove fuser unit See Fig 14 7 1 2 Detach2 screws release 6 hooks and remove heater thermistor Notes 1 Ne
33. mirror Six scans can be carried out with one rotation of the polygonal mirror December 2002 TOSHIBA TEC 8 3 e STUDIO160 200 250 PRINTING 3 Lenses 1 and 2 These lenses perform the following compensations on the laser light reflected by the polygonal mirror Equidistant scanning The reflected laser light on the polygonal mirror is scanned at the same angle be cause the polygonal mirror is rotated at the same speed That is when the scan is com pleted the dot pitch on the drum becomes the wide spaces at the both edges and the narrow spaces in the center So in order to regularize intervals of dots laser light is compensated so that it is scanned on the drum at equal speeds Pyramidal error compensation The reflected face on polygonal mirror is tilted in either of two directions for the per fect vertical direction Deviation of the laser light for the perfect horizontal caused by this reflected face s pyramidal error is com pensated The section s shape of the laser beam on the drum is compensated 4 HSYNC detection The laser light which is scanned by the any reflected face on the polygonal mirror is reflected by the HSYNC detection mirror and becomes incident to the PIN diode on the laser drive PWA Then the primary scanning synchronizing is formed by detection of the laser light 5 Laser Drive PWA This control board has the following functions Wide Narrow
34. 03 17 3 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS 4 CN12 PIXAO PIXA2 4 6 PIXA8 PIXA10 PIXA12 CS2XB PBA1 PSDRASXR PSDDQMUR SDCLK1 PIXDO PIXD2 PIXD4 PIXD6 PIXD8 PIXD10 PIXD12 PIXD14 SDRMt1ID 3 3V 3 3V SG PWA F MAN 56 6 1 4 PIXA1 PIXA3 5 PIXA7 PIXA9 PIXA11 CS1XB PBAO PSDWER PSDCASXR PSDDQMLR PSDCKER PIXD1 PIXD3 PIXD5 PIXD7 PIXD9 PIXD11 PIXD13 PIXD15 3 3V 3 3V SG SG MEM1DET ONDARON OQ amp b BOB BOR RB B B Q Oc B BOR RB OR BOR OR OR p e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS CN106 PWA F MEM 1 Option I CN13 CN106 2 4 6 PIXA8 PIXA10 PIXA12 CS4XB PBA1 PSDRASXR PSDDQMUR SDCLK2 PIXDO PIXD2 PIXD4 PIXD6 PIXD8 PIXD10 PIXD12 PIXD14 SDRM2ID 3 3V 3 3V SG PWA F MAN sG 7 1 4 PIXA1 PIXA3 5 PIXA7 PIXA9 PIXA11 CS3XB PBAO PSDWER PSDCASXR PSDDQMLR PSDCKER PIXD1 PIXD3 PIXD5 PIXD7 PIXD9 PI
35. 2 6 23 Detach scanner cover See Fig 2 6 3 9 Detach control panel front cover See Fig 2 6 6 Detach control panel bottom cover See Fig 2 6 7 gt Detach ozone cover See Fig 2 6 9 9 Detach paper tray cover See Fig 2 6 10 10 Detach front frame covers F and R See Fig 2 6 18 and 2 6 19 11 Detach front cover See Fig 2 6 22 12 Remove 4 screws release 2 hooks and detach main cover V Ozone filter 2 1 Detach ozone filter 2 from the rear cover Ozone filter 2 Fig 2 6 24 029 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 28 December 2002 TOSHIBA TEC 2 6 2 Removal of PC boards A MAIN PWA Before removing the MAIN PWA print the FUNC TION LIST for setup after MAIN PWA replacement If it is unable to print it use the FUNCTION LIST on the inside of the rear cover 1 STP KK 1600 is attached to the copier disconnect the power cable Detach the manual pocket Detach rear cover See Fig 2 6 1 If a FAX kit GD 1061 is attached to the copier detach the FAX PWA and NCU PWA 5 If a PCL kit GA 1031 or Memory GC 1050 is attached to the copier detach it 6 If a NIC kit GF 1110 or I FAX GD 1070 is attached to the copier unplug the connectors for CN14 and CN17 7 If finisher MJ 1011 is attached to the copier detach the finisher PWA 8 Detach the connectors from MAIN PWA CNA CN8 CN9 CN18 9 Remove 4 screws and remove MAIN PWA CN15 from RELA
36. 200 in increments of 1 25 400 in increments of 1 for e STUDIO200 250 series with original cover Read 600 dpi x 600 dpi Copy 600 dpi x 600 dpi Printer 1200 dpi x 600 dpi Fax 16 dot mm x 15 4 dot mm 406 dpi x 392 dpi Automatic feeding Copier s cassette 1 piece standard e STUDIO160 series Expandable up to 3 pieces by installing optional cassettes e STUDIO200 250 series Expandable up to 4 pieces by installing optional cassettes PFU optional Stack height 60 5 mm Equivalent to 550 sheets 64 to 80 g m 17 to 21 Ib PFP optional Stack height 60 5 mm Equivalent to 550 sheets 64 to 80 g m 17 to 21 Ib LCF optional Stack height 165 mm Equivalent to 1250 x 2 sheets 64 to 80 17 to 21 Ib Bypass feeding Stack height 16 mm Equivalent to 100 sheets 64 to 80 g m 17 to 21 Ib A4 A4 R B5 5 5 LT ST R 50 sheets with ADF B4 Folio LG Comp A3 LD 50 sheets with ADF 4 4 B5 5 A5 R LT LT R ST R 100 sheets with RADF B4 Folio LG Comp A3 LD 100 sheets with RADF Automatic toner sensor detection Automatic density mode and manual density mode selectable in 7 steps 1 3 e STUDIO160 200 250 SPECIFICATIONS WeIQNT 2 iie Standard 50 Kg 110 Ib with Process unit Toner cartridge Full system 92 Kg 203 Ib e STUDIO160 series 124 Kg 273 Ib e STUDIO200 250 series Power requirements 115VAC 50 2 60 2 120VAC 50Hz 60
37. 200 250 PAPER FEEDING SYSTEM 9 8 December 2002 TOSHIBA TEC 9 6 Tray up Motor Drive Circuit Tray up motor Driven by IC4 PWA F RLY TA8428K The block diagram of TA8428K is shown below Overheat protection circuit Overcurrent protection circuit and IN2 are input terminals for the signals from the I O port GA 1 In the control section the motor is controlled ON and OFF based on the signals from the I O port GA 1 For the control refer to the table below Input Output IN1 IN2 Description H H L L BRAKE L H L H CCW upward H L H L CW downward L L OFF high impedance STOP December 2002 TOSHIBA TEC e STUDIO160 200 250 PAPER FEEDING SYSTEM 9 7 Disassembly and Replacement A Separation holder assembly 1 Remove paper cassette See Fig 2 6 11 2 Release 4 hooks and remove separation holder assembly B Separation roller 1 Remove paper cassette See Fig 2 6 11 2 Remove separation holder assembly See Fig 9 7 1 3 Lift separation roller lever and remove separa tion roller assembly 4 Remove arbor F draw out shaft and remove separation roller separation spring arbor R and spring cover in this order Notes 1 To detach attach the separation roller from to the separation spring rotate the separation roller in the direction of the arrow 2 Since the separation spring is coated with oil t
38. 3 See Fig 14 7 8 Stud 5 Release the heater cover assembly See Figs 14 7 14 ai 6 Remove the HR drive gear 1 Y 1 Ws See Fig 14 7 19 at 5 NG 7 Remove the heater lamp C ring See Figs 14 7 21 14 7 23 and 14 7 24 4 8 9 Heat roller bushing Remove the HR drive gear 3 Boss 095 Remove the C ring to detach the HR drive gear Fig 14 7 25 2 and the heat roller bushing HR drive gear 2 Note When HR drive gear 3 is replaced apply 0 1 g of white grease molykote HP 300 to the stud Also when HR drive gear 2 is replaced apply 0 075g of white grease molykote HP 300 to the area around the boss inside of HR drive gear 2 See Fig 14 7 26 098 Fig 14 7 26 Press roller 10 Remove the HR frame R assembly detach the sensor guide press roller and the cleaning roller Fig 14 7 27 December 2002 TOSHIBA TEC 14 17 gt e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 11 Remove the C ring to detach the heat roller bushing 12 Remove heat roller Note When heat roller is replaced apply 0 075g of white grease molykote HP 300 to the area around the boss inside of HR drive gear 2 See Fig 14 7 26 13 Remove 2 press roller bushings 14 Release the spring to remove the cleaning roller bushing Heat roller Heat roller bushing 02 C ring 097 HR frame F assembly Fig 14 7 28 Press roller bushing Cleaning roller bushing Spring
39. 53 TSMON 21 port GA 1 12 4 02 The motor winding is connected to the 24 at its side and to the collector of IC5 at its side When TSMON signal Toner supply motor drive signal of the I O port GA 1 becomes H level C5is turned on The 24V power supply supplies current to IC5 via the motor winding the motor rotates When TSMON signal becomes L level C5is turned off The current which was flowing the motor winding flows via the route of diode It decreases at the rate of the time constant determined by the inductance and resistance of the winding the motor stops December 2002 TOSHIBA TEC 12 7 e STUDIO160 200 250 DEVELOPER SECTION 12 6 Disassembly and Replacement A DEV motor assembly 1 STP 1600 is attached to the copier disconnect the power cable Detach the manual pocket Detach the toner cartridge and the process unit Detach rear cover See Fig 2 6 1 Remove MAIN PWA See Fig 2 6 25 and 2 6 26 Detach the connectors from RELAY PWA CN32 CN39 CN54 and release the clamp If an ADU MD 0101 is attached to the copier open it Open side cover Open front cover 10 Remove 3 screws and remove DEV motor as e STUDIO160 200 250 DEVELOPER UNIT sembly 083 RELAY PWA Front cover Fig 12 6 2
40. 8 6 9 15 16 43 44 45 46 47 50 24 23 18 42 41 40 39 38 32 49 31 48 37 36 35 34 December 2002 TOSHIBA TEC 2 1 e STUDIO160 200 250 OUTLINE OF THE MACHINE 1 ADF glass 39 Toner supply motor 2 Original glass 40 Paper cassette STD 3 Carriage 1 41 LSU stay 4 Carriage2 42 Laser scanner unit 5 Exposure lamp 43 Ductlower 6 Reflecting mirror 1 44 Ozone filter cover Ozone filter 1 7 Reflecting mirror 2 45 Duct upper 8 Reflecting mirror 3 46 Ductfront 9 CCDunit 47 Toner cartridge 10 Scanner control PWA 48 Timing belt 194 11 Shading sheet 49 Timing belt 124 12 Wire F 50 Heater thermostat 2 13 Exit cover 14 Scraper 15 Exit pinch roller 16 Exitroller 17 Fuser unit 18 Separation claw 19 Pressure roller 20 Cleaning roller 21 Heatroller 22 Heater lamp 23 Heater thermostat 1 24 Heater thermistor 1 2 25 Process unit 26 Transfer charger 27 Transfer guide roller 28 Pinch roller 29 Registration roller 30 Feed roller 31 Pickup roller 32 Timing pulley 33 Separation roller 34 2nd pinch roller 35 2nd feed roller 36 Cassette slider 37 Cassette catch
41. 90 Toner Carrier Fig 3 2 10 December 2002 TOSHIBA TEC Magnetic roller Magnetic brush development The South and North poles are arranged as shown in the figure on the right inside the magnetic roller The developer mate rial contacts the drum forming a brush This is caused by the lines of magnetic force between the South and North poles 6 Transfer This process transfers the visible image developed on the drum surface by the toner onto the paper Method Corona discharge reverse polar ity of toner is caused by the trans fer charger to happen to paper passing between the drum and the transfer charger The toner moves from the drum surface onto the paper ciency the paper December 2002 TOSHIBA TEC Drum Lines of magnetic force 03012 Fig 3 2 11 Drum Paper E _ Transfer charger 03013 Fig 3 2 12 ce Progress of ON paper O 9 AQ Transfer Rotation of drum charger Q Fig 3 2 13 ix For smooth transfer this machine features a transfer bias stage The transfer bias process prevents the charge of the transfer charger from flowing to the paper feed pinch roller and paper transfer guide plate through the paper by applying the bias voltage 375V DC to the paper feed pinch roller and paper transfer guide plate This is done to improve transfer effi Normally the corona discharge is applied by
42. Fuser unit FUSER 1600 120 FUSER 1600 240 for e STUDIO160 series FUSER 2500 120 FUSER 2500 240 for e STUDIO200 250 series Transfer charger unit MAIN CH 1600 2 Process unit Process unit 16105 PU 1610ES 16100 PU 1610DSN PU 1610CS 3 Supplies Toner cartridge T 1600 T 1600E T 1600D T 1600C for e STUDIO160 series T 2500 T 2500E T 2500D T 2500C for e STUDIO200 250 series e STUDIO160 200 250 SPECIFICATIONS 1 6 December 2002 TOSHIBA TEC 1 5 System List Reverse automatic document feeder RADF MR 3011 Finisher kit Hanging type dum MJ 1011 for e STUDIO200 250 series Job separator JSP Inner type MJ 5001 MJ 5001 N UL Offset tray Inner type MJ 5002 MJ 5002 N Memory kit GC 1050 GC 1050 N Printer kit Printer control GA 1031 Network interface card kit NIC GF 1110 Fax board kit GD 1061 EU GD 1061 NA GD 1061 AU GD 1061 SA GD 1061C FAX NCU Operation board board panel Internet fax kit GD 1070 December 2002 TOSHIBA TEC Automatic document feeder ADF MR 2012 MR 2012 N e STUDIO160 200 250 series 1st cassette Std Original cover KA 1600PC KA 1600PC N Stapler with surface KK 1600 Automatic duplexing unit ADU MD 0101 MD 0101 N Stack feed bypass SFB MY 1016 N Paper feed controller PFC GH 1030 GH 1030 N
43. GD 1070 is attached to the copier unplug the connectors for CN14 and CN17 If finisher MJ 1011 is attached to the copier detach the finisher PWA 8 Remove MAIN PWA See Fig 2 6 25 and 2 6 26 9 Detach all the connectors from RELAY PWA 10 Remove 4 screws and remove RELAY PWA gt C I F 1 Ifa STP KK 1600 is attached to the copier disconnect the power cable Detach the manual pocket Detach rear cover See Fig 2 6 1 4 Remove one screw detach PC PWA cover and detach the connector 5 Remove 2 screws and remove PWA RELAY PWA 0 D o a 0 Screw 024 RELAY PWA Fig 2 6 27 PC PWA PC PWA PC PWA cover Fig 2 6 28 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 32 December 2002 TOSHIBA TEC D High voltage power supply 1 STP KK 1600 is attached to the copier disconnect the power cable Detach the manual pocket 3 Detach rear cover See Fig 2 6 1 4 IfaPCL kit GA 1031 is attached to the copier detach it 5 NIC kit GF 1110 or GD 1070 is vm HVPS cover attached to the copier unplug the connectors Fig 2 6 29 026 1 for CN14 and CN17 High voltage 6 Remove 2 screws release 2 clamps and power supply detach HVPS cov
44. Handbook 05 205 Developer bias DC adjustment 05 210 Grid voltage initial value adjustment 05 220 Transfer H 05 221 Transfer C 05 233 Separation H 05 234 Separation C 05 235 Separation L 05 400 Printer primary scanning reproduction ratio 9 05 410 Laser start position 10 05 421 Printer secondary scanning reproduction ratio 11 05 440 Leading edge 12 05 430 Top margin 13 05 431 Left margin 14 05 432 Right margin 15 05 433 Bottom margin 16 08 404 Developer material counter 17 08 401 Drum life counter 18 08 251 PM counter setting value 19 08 252 PM counter present value 20 08 446 Transfer ON position 21 08 447 Transfer OFF position amp 11 Sensor test in the 1 3 test mode 1 Confirm whether the attached options are reflected on the bit information correctly 2 Refer to 1 2 4 of the Service Handbook 12 SRAM test DRAM test Clock IC test CODEC test mode For details see chapter 8 of the Operator s Manual December 2002 TOSHIBA TEC 2 31 e STUDIO160 200 250 OUTLINE OF THE MACHINE B RELAY PWA 1 Ifa STP KK 1600 is attached to the copier disconnect the power cable Detach the manual pocket 3 Detach rear cover See Fig 2 6 1 If a FAX kit GD 1061 is attached to the copier detach the FAX PWA and NCU PWA 5 Ifa PCL kit GA 1031 or Memory GC 1050 is attached to the copier detach it 6 If a NIC kit GF 1110 or 1
45. MR 3011 is attached to the copier detach it 2 If a STP KK 1600 is attached to the copier 5 So disconnect the power cable lll l 9 3 Detach the manual pocket 4 Remove 3 screws release hook and detach top BN E 0 Top cover Fig 2 6 2 25 C Scanner cover 1 IfanOriginal Cover KA 1600PC ADF MR 2012 orthe RADF MR 3011 is attached to the copier open it Screw Scanner cover 2 Remove 3 screws and detach scanner cover D Top cover L Fig 2 6 3 1 Ifa Finisher MJ 1011 is attached to copier Tab Top cover L detach the finisher plate 2 Ifan Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it 3 If a STP KK 1600 is attached to the copier disconnect the power cable 4 Detach the manual pocket 5 Detach top cover See Fig 2 6 2 6 Remove 2 screws release 2 tabs and detach Fig 2 6 4 top cover L by lifting in the direction of the arrow December 2002 TOSHIBA TEC 2 21 e STUDIO160 200 250 OUTLINE OF THE MACHINE E Top cover R 1 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it If STP KK 1600 is attached to the copier detach it Detach the manual pocket Detach top cover See Fig 2 6 2 Remove 3 screws release 2 tabs and detach top cover R by lifting in the direction of the arrow F Con
46. Outline This section describes the control circuit for each bias voltage and current for charging development transfer and separation Main PWA Magnetic roller Transfer charger 1 34 System control GA D A converter Separation charger Pinch roller Paper guide plate 11 05 01 11 5 2 Control method Charging Grid The CPU IC66 loads reference voltage data for the grid into the register of the system control GA IC34 The system control GA converts data loaded into the register to DI signal ADC setting signal in serial format and sends it to the D A converter IC17 atthe timing of the CLK signal transfer clock signal and the LD signal load data signal 4 The D A converter converts the input data to a GVR signal grid reference voltage signal in analog form and sends it to the HVPS 4 The 5 generates high voltage based on the voltage value of the GVR signal and delivers itto the grid Charging Main charger The port GA 2 IC6 turns the CCON signal main charger control signal to Low level 1 The HVPS generates constant current and delivers it to the main charger e STUDIO160 200 250 DRUM RELATED SECTION 11 4 December 2002 TOSHIBA TEC Development Magnetic roller The CPU 1 66 loads reference voltage data for development b
47. TEC 4 1 e STUDIO160 200 250 COPIER OPERATION 4 2 2 Standby There are the following four kinds of power save functions 1 Low Power Lowers the heater to a fixed temperature 2 Sleep Turns the heater OFF 3 SuperPowerSave Turnsthe main CPU OFF 4 Weekly Timer Controls the Sleep mode for each day of the week 1 Low Power The Low Power mode function lowers the heater temperature to a fixed temperature after the set time has elapsed to save power consumption The standard mode switches to the Low Power mode if no operation has been performed for a fixed time The standard switching time is 15 minutes The time taken before such switching can be changed 1 min to 240 min The Low Power mode is deactivated when you press the START key or an effective key under READY on the display or open and close the platen while in the Low Power mode When the Low Power mode is deactivated the program performs the following two operations Returns the display for the Low Power mode to the normal display Returns the fusing temperature to the fusing temperature for standby 2 Sleep The Sleep mode function turns the heater power OFF after the set time has elapsed to save power consumption The Low Power mode switches to the Sleep mode if no operation has been performed for a fixed time If the Low Power function is invalid program so that such switching takes place from the standard mode to the Sleep mode The standard switching time is 15 m
48. a voltage of 5 2 kV DC However to improve transfer ability at the leading edge of the paper a higher output 5 5 kV DC is applied to the leading edge of e STUDIO160 200 250 COPYING PROCESS 7 Separation Atthe transfer process the sheet of paper becomes temporarily attached to the drum due to static electricity The separation pro cess separates the paper from the drum Method A negative DC bias is applied to the separation charger The negative charge on the paper The electrostatic attraction be is decreased tween the paper and the drum The paper is separated from the weakens drum by its own weight Output is controlled as follows to obtain satis factory separability and transferability Rotation of drum paper 995 Fig 3 2 14 Progress of Position of Paper in Relation to Transfer Point Separation Output Leading edge 4 3 KV DC Trailing edge 3 9 KV DC Reference Separation chager 03015 Combined use of separation charger and sepa ration claw To prevent the copy paper from failing to be separated during the operation due to incom plete transfer charging incomplete separation charging or absorption of moisture and thus jamming up the cleaner a separation claw me chanically separates any copy paper which fails to be separated Separation claw S Paper movement Rotation of drum Separation
49. an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it 2 Remove original glass See Fig 7 8 7 3 Remove the blind plate Flat cable See Fig 7 8 16 and 7 8 17 4 Remove 3 screws detach 2 connectors and remove CCD unit Notes 1 When attaching the flexible cable se curely lock the connector locks on both sides of the connector 2 For mounting the CCD unit and adjust ing the enlargement reduction of images refer to the Service Handbook See Chapter 1 8 K Document size sensor DP2000 2500 series 1 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Document Screw size sensor Connector Document Remove original glass See Fig 7 8 7 Remove the blind plate See Fig 7 8 16 and 7 8 17 4 Remove 5 screws detach 5 connectors and remove document size sensor Note When installing document size sensor the harness must not obstruct CCD NAD model MJD SAD AUD CND models 065 5 5 December 2002 TOSHIBA TEC 7 29 e STUDIO160 200 250 SCANNER L Scanner thermostat SAD ASD AUD CND models 1 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Remove original glass See Fig 7 8 7 Remove the blind plate See Fig 7 8 16 and 7 8 17 Detach 2 connectors Remove 2 screws and remov
50. blade Note Be sure to touch the contact part of the drum cleaning blade and drum e STUDIO160 200 250 COPYING PROCESS 3 12 Drum bracket Fig 3 4 8 3 8 08 Pin Drum cleaning 3 8 09 Fig 3 4 9 December 2002 TOSHIBA TEC E Recovery sheet 1 Remove the toner cartridge and the process unit Detach the separation claw See Fig 3 4 1 Detach the drum assembly See Fig 3 4 2 Detach the drum See Fig 3 4 8 Peel off the recovery sheet a fF oO N Notes 1 Before attaching the recovery sheet wipe the surface to be attached 2 Attach the recovery sheet in the position described in right Attach the recovery sheet securely with no portion lifted and no wrinkles appeared Cover sheet A Cover sheet B 1 Remove the toner cartridge and the process unit Detach the drum assembly See Fig 3 4 2 Peel off the cover sheet B from the developer assembly Notes 1 Before attaching the cover sheet B wipe the surface to be attached 2 Attach the cover sheet B by putting it against the reference position described in right Attach the cover sheet B securely with no portion lifted and no wrinkles ap peared December 2002 TOSHIBA TEC Recovery sheet 3 4 10 Reference position Fig 3 4 11 TN Cover sheet B Fig 3 4 12 sen Reference position
51. causes the tray lift lever to lift the paper tray 9 4 2 Paper feeding section Pickup arm Pickup roller Pickup shaft Pickup lever Pickup feed roller Transmission gear 3 Pickup clutch 09 04 02 When the paper cassette is mounted the pickup lever is pushed by the hook of the paper cassette in the direction of the arrow As the pickup lever is pushed the pickup shaft turns and the pickup arm and pickup roller descend of their own weight The driving force of the main motor is transmitted to the clutch through each gear of the main drive gear assembly As the pickup clutch is turned ON the pickup feed roller turns causing the pickup roller to turn through the belt e STUDIO160 200 250 PAPER FEEDING SYSTEM 9 4 December 2002 TOSHIBA TEC 9 4 3 Paper separation Paper separation is performed by the pickup feed roller and separation roller in this machine The separation roller is connected to its shaft through the arbor R torque limiter The pickup feed roller 45 is rotated in the direction of the arrow at the lt Arbor R same timing as the pickup roller by the main mo tor The separation roller is driven in the direction of the arrow ge through the arbor R torque 9 limiter But when there is no paper or only 09 sheet between the rollers the friction between Separation roller us rollers or that between the sheet and the separa M tion roller is large enough to force t
52. e STUDIO160 series 260 mm sec e STUDIO200 250 series 260 mm sec Switching of the gear drive and timing belt drive is done by the clutch Registration roller RGST CLT Registration roller clutch Feed sensor The gear train from the main motor transmits the drive Timing belt 309 2nd feed roller Clutch pulley OCF CLT 2nd feed clutch 10 2 3 2 PPS2 Fig 10 2 4 When the main motor rotates the drive is transmitted to the gears of the RGST CLT and OCF CLT clutches and these gears rotate However when the clutches are turned off the respective rollers do not rotate When paper is picked up from the option cassette the OCF CLT is turned on causing the 2nd feed roller to rotate At this time the clutch pulley prevents timing belt 309 from rotating The registration roller does not rotate either since the RGST CLT is turned off When paper is fed into the paper path the RGST CLT is turned on and the registration roller rotates The OCF CLT is turned off and the timing belt rotates the 2nd feed roller December 2002 TOSHIBA TEC 10 5 e STUDIO160 200 250 DRIVE SYSTEM 10 3 Disassembly and Replacement A Main drive gear assembly 1 Ifa STP KK 1600 is attached to the copier disconnect the power cable Detach the manual pocket If a Finisher MJ 1011 is attached to the copier detach the finisher plate and junction block 4 If a JSP MJ 5001 or OCT MJ 5002 at tached to the copi
53. optimal 97 Fig 14 7 16 value it should be adjusted by the proce dures below 1 Loosen 1 screw at the rear side fixing fuser thermostat 2 2 Loosen 2 screws fixing fuser thermostat assembly 1 3 Fix 2 screws while fuser thermostat as sembly 1 is moved in the opposite direc tion of the arrow At this time make sure that fuser ther mostat assembly 1 is not inclining 4 Check that the gap value is within the optimal value according to the method stated in the Note If the gap value is other than the optimal value repeat the above procedure from step 2 5 Fix the screw in fuser thermostat 2 10 Remove 2 screws and detach fuser thermo stat 2 Note Attach fuser thermostat assembly 2 so that itis placed atthe lowest position Make sure thatthe gap shown in the figure on the right is assured The optimal value is a gap be tween 0 7 mm and 1 4 mm Within this assembly 2 value the fuser gap jige 0 6 mm can be smoothly inserted in the gap between the Heat roller umi heat roller and fuser thermostat 2 but the other one 1 5 mm cannot be inserted If the gap value is other than the optimal B value check that the attachment order of fuser thermostat 2 flat spring and harness is correct Also if any of fuser thermostat 0 7 1 4 mm 2 holder and sensor guide is deformed re place it with a new one Screw Flat spring Sensor guide Fuser thermostat Fig 14 7 17 0925 Fuser thermos
54. originals with a certain level of background such as newspapers this function can reduce the background density Dynamic range width Extended dynamic rage width 5 i After range Back correction ground Smaller pixels Larger Smaller of pixels Larger Lower Density Higher Lower lt Density Higher 07003 Fig 6 3 1 Histogram December 2002 TOSHIBA TEC 6 3 e STUDIO160 200 250 IMAGE PROCESSING 2 Filtering This function uses a low pass filter circuit and a high pass filter circuit a Low pass filter circuit By averaging the differences between the target pixel and its adjacent ones the circuit eliminates image and electrical noise as well as restricts moire to obtain an image with high reproducibility of the original For example assuming the density of the target pixel position to be x and the densities of its front and back positions to be a and b respectively the density of the target pixel position x after low pass filter operation is given as follows For 3 x 1 matrix The above operation is performed for all pixel positions to accomplish high original reproducibility The following figure shows the low pass filtering processing on the primary scanning pixel Density Density After low pass filter processing 0123456789 0123456789 Primary scanning pixel positions Primary scanning pixel positions 07005 e STUDIO160 200 250 IMAGE PROCESSING 6 4 December 200
55. stopped by the thermostat The paper on which fixing has taken place is stripped from the heat roller by the separation claw and transported to the exit unit 14 4 2 Exit unit Power from the main motor is transmitted to the gears of the exit unit through the gears of the fuser unit to turn the exit roller The pinch roller is pressed against the exit roller by the spring so that itis turned by the power of the exit roller Consequently the paper is transported by the exit roller and pinch roller December 2002 TOSHIBA TEC 14 3 e STUDIO160 200 250 FUSER UNIT EXIT UNIT 14 5 Functions of Each Part 14 5 1 Fuser unit 1 Heater lamp 2 3 lt The halogen lamps are provided inside the heater roller to heat the heater roller The heater lamp stays fixed even when the heat roller is rotating Heater roller The heater roller is made of aluminum having comparatively good heat conducting properties It is heated by the heater lamps Fusing is carried out by passing the transfer paper through the section where the heater roller and pressure roller each other so that the toner image on the paper faces the heater roller In other words the toner is melted by the heat of the heater roller and the heat transfer efficiency is improved by the pressure of the pressure roller so that the toner soaks in between the fibers of the paper Pressure roller The pressure roller is made of rubber to facilitate pressurization of the heater
56. the RADF MR 3011 is attached to the copier detach it If a STP KK 1600 is attached to the copier detach it Detach the manual pocket If a Finisher MJ 1011 is attached to the copier detach the finisher plate Detach top cover See Fig 2 6 2 Detach scanner cover See Fig 2 6 3 Detach top cover L See Fig 2 6 4 Detach top cover R See Fig 2 6 5 Release the lamp cable See Fig 7 8 19 to 7 8 22 10 Remove carriage 1 See Fig 7 8 24 e STUDIO160 200 250 SCANNER 7 26 Spring plate Spring plate Spri lat Fig 7 8 25 Scanner drive shaft Fig 7 8 26 058 1 December 2002 TOSHIBA TEC 11 Mount the clip jig to prevent the dislocation of wire wound on scanner drive shaft and secure wire Notes 1 When the wire holder clip jig is installed do not slide or loosen the wound wire 2 The wire holder clip jigs are the same time for the front and rear sides 3 Be careful when installing the clip jig 12 Loosen 2 screws retaining wire holder 13 Detach wire on the side where it is hooked and fixed to scanner frame and release wire from roller if carriage 2 14 Remove carriage 2 by turning it by 45 degrees 15 Remove spring plate securing mirror 2 and re Spring plate move mirror 2 Note Clean the surface of mirror 2 if dirty December 2002 TOSHIBA TEC 7 27 e STUDIO160 200 250 SCANNER 16 Remove spring plate securing mirror 3 and re move mirror 3 Notes 1
57. the motor drive circuit detects the rotor position in the motor and the rotational lt frequency FG pulse It compares the detected rotational frequency with the MMCLK signal in terms of phase and speed It adjusts the excitation timing to eliminate the difference in each comparison and control the rotation of the motor When the difference in each comparison is then eliminated and the rotation stabilizes the main motor sends the MMSYNC signal at Low level to the I O port GA 2 December 2002 TOSHIBA TEC 10 11 e STUDIO160 200 250 DRIVE SYSTEM 4 e STUDIO160 series To stop the rotation the I O port GA 2 turns the MMON signal to Low level thereby stopping the main motor e STUDIO200 250 series To stop the rotation the port GA 2 turns the MMBRK signal to High level thereby braking the rotation of the main motor Then the I O port GA 2 turns the MMON signal to Low level to stop the main motor 10 4 2 Control signals 1 MMCLK signal Reference clock signal for rotational speed 2 MMDIR signal e STUDIO200 250 series Rotational direction setting signal Low level Rotates counterclockwise as viewed from the output shaft High level Rotates clockwise as viewed from the output shaft 3 MMBRK signal e STUDIO200 250 series Rotational brake signal Low level Brake ON High level Brake OFF 4 MMON signal ON OFF control signal for main motor Low level OFF High level ON 5 MMSYNC
58. the toner cartridge becomes empty When this message is displayed it is not possible to 9 Misfeed in bypass Bypass paper jamming SFB The machine returns to normal con Paper jams at the bypass guide ditions automatically when the pa C in Fig 5 2 4 per out is pulled from the bypass guide 10 Misfeed in copier Paper jammed in the machine Remove the paper jammed in the Copier machine Din Fig 5 2 5 copier by following the messages 11 Misfeed in copier LCF Cassette LCF paper misfeed Remove the paper jammed in the Paper supplied from the cas copier by following the message sette does not reach the align ing sensor in a set time E in Fig 5 2 6 12 Misfeed in doc feeder Original jammed Open the ADF jam access cover ADF An original is jammed in the and the ADF unit and remove the ADF jammed original F in Fig 5 2 7 13 Misfeed in finisher Paper jammed in sorter Remove the paper jammed in the Finisher G in Fig 5 2 8 sorter and open and close the front cover for once 14 Misfeed in duplexer Paper jammed in the ADU Remove the paper jammed in the ADU H in Fig 5 2 9 copier by following the message 15 Call for service Some part of the mechanism mo Turn OFF the machine remove the tors switches or sensors is abnor cause of the fault and turn the ma mal chine back ON 16 Time for maintenance Indication of PM cycle Maintenance and inspection by a qualified servi
59. thermostat cuts the power to the heater lamps if the heater roller become abnormally hot as a result of thermistor malfunction for example The thermostat on this copier is for preventing abnormal operation When the thermostat detects an abnormality the thermostat must be replaced together with the other damaged parts in the fuser 9 Fuser thermostat 2 Fuser thermostat 2 cuts the power to the heater lamps if fuser thermostat 1 malfunctions When fuser thermostat 2 detects an abnormality it must be replaced together with any other damaged parts 14 5 2 Paper exit unit 1 Exit roller The exit roller turns as the power of the main motor or ADU motor Upper is transmitted to it through the gear of the fuser thereby transporting the paper Pinch roller The pinch roller helps the exit roller transport the paper The pinch roller is pressed against the exit roller by the spring so that it is turned by the power of the exit roller Exit sensor The exit sensor detects the transport of paper at the paper exit unit A paper jam is detected ing to the on off timing of the exit sensor E Exit guide The exit guide is used as a guide for transporting the paper to the option ADU December 2002 TOSHIBA TEC 14 5 e STUDIO160 200 250 FUSER UNIT EXIT UNIT 14 6 Heater Control Circuit 14 6 1 Temperature detection section This section detects the surface temperature of the heat roller in the fuser unit by mean
60. to left several times to flatten the developer material 8 Rotate the gear several times until the devel oper is supplied to the magnetic roller 9 Attach the developer cover H Main charger wire cleaning pad 1 Remove the toner cartridge and the process unit Detach the drum assembly See Fig 3 4 2 Detach the DLE PWA assembly See Fig 3 4 3 4 Detach the main charger assembly See Fig 3 4 4 5 Detach the main charger wire See Fig 3 4 6 6 Detach the main charger wire cleaning pad from the main charger wire cleaning lever December 2002 TOSHIBA TEC 3 15 Developer material Fig 3 4 18 Developer assembly Fig 3 4 19 Main charger wire Main charger wire cleaning pad cleaning lever Main charger wire cleaning pad Fig 3 4 20 He e STUDIO160 200 250 COPYING PROCESS I Magnetic roller Doctor blade 1 Remove the toner cartridge and the process unit Detach the drum assembly See Fig 3 4 2 Remove the timing belt 138 Developer assembly 4 Remove 2 screws and detach the developer cover gear cover Developer assembly 3 4 22 5 Remove one E ring and detach the developer Developer drive gear 1 and washer drive gear 2 6 Remove one E ring and detach the washer and e we CLG Washer developer drive gear 2 E ring gt m 7 Detach the magnetic roller drive gear Washer No
61. 00 250 OUTLINE OF THE MACHINE C 1 Motors M2 02 02 06 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 10 December 2002 TOSHIBA TEC D 1 Thermostat thermistors and heaters THM6 HL2 ASD AUD CND MJD models HL3 ASD AUD CND MJD models THM2 02 02 10 THM3 HL1 NAD SAD models December 2002 TOSHIBA TEC 2 11 e STUDIO160 200 250 OUTLINE OF THE MACHINE D 2 Sensors switches thermostat thermistors lamps and heaters THM4 EXP DH1 DLE SW5 SW6 02 02 08 SEN8 5 4 5 ASD AUD CND SAD models e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 12 December 2002 TOSHIBA TEC 2 3 Symbols and Functions of Various Devices 1 Boards Symbol Name Function Remarks MAN PWA F MAN PWA which controls the entire system A 1 Main PWA RLY PWA F RLY PWA which relays signals between PWA and A 1 Relay PWA PWA F PIF PWA which locally connects the copier to a A 1 PC I F PWA PC INV INV EXPO PWA which controls exposure when scanning A 2 Inverter PWA a document CCD PWA F CCD PWA which controls the processing of CCD A 2 CCD PWA images SLG PWA F SLG PWA which controls the scanning optical sys A 2 Scanner control PWA tem and ADF MR 2012 RADF MR 3011 Option LCD LCD UNIT LCD PWA 2 LCD PWA PNL PWA F PNL TO Key switch PWA 2 Operation panel P
62. 02 TOSHIBA TEC 18 3 Description of Function 18 3 1 Basic functions 1 Alternation This operation is achieved by the page memory board compression decompression and rotation func tions The orientation of multiple copies is switched for each copy or by each page at a time Alternation assumes that a cassette of the same paper size having a different orientation is installed in the digital copier Sort copying This operation is achieved by the compression decompression function on the page memory while being compressed Image data stored in the memory are then decompressed at each page and printed Assuming that printing of N number of copies has been set decompression and printing at each page are repeated for N number of times Example The following describes an example of execution process where alternation and sorting have been specified when marking multi copies Execution process Basic function Input process Input Output process Output lt gt December 2002 TOSHIBA TEC 18 5 e STUDIO160 200 250 PAGE MEMORY BOARD Execution process Alternation sort copying Input process Image Memory memory module module Decompression process Image M emor module module Roation PM Page Memory IM Image Memory e STUDIO160 200 250 PAGE MEMORY BOARD 18 6 December 2002 TOSHIBA TEC Example The
63. 02 TOSHIBA TEC 5 12 e STUDIO160 200 250 DISPLAY UNIT 5 4 Description of Operation 5 4 1 Dot matrix LCD circuit 1 Structure The HLM6244 is an STN black amp white mode transmission type LCD with a 240 X 64 dots display capacity It includes driver LSI a frame and PC board STN Super Twisted Nematic December 2002 TOSHIBA TEC 5 13 e STUDIO160 200 250 DISPLAY UNIT 2 Block diagram m Y LCD driver 240 x 64 dots Com64 Segl Seg240 X driver 1 X driver 2 X driver 3 ees EMEN nr ae FLM 4 generating circuit LP SCP D VSS VDD VO BIAS VEE e STUDIO160 200 250 DISPLAY UNIT December 2002 TOSHIBA TEC 3 LCD drive operation The following describes the drive operation to display the message READY 1 The Main CPU requests the data for displaying READY from the 2 The PROM outputs the data for displaying the message to the Main CPU 3 The Main CPU writes to RAM the data to be displayed on the LCD 2 The LCD controller driver reads the display data from RAM and outputs the data to the LCD CONNECTOR DATABUS LATCH 00 07 00 07 SWS0 SWS6 j E00008 WR BUFFER SWCO SWC15 Y CLK E0000A E0000C RD LED LED6 LEDS LED4 LEDS LED2 LEDO LED15 LED14 LED13
64. 02 TOSHIBA TEC e STUDIO160 series Motor harness Harness ADF connector plate Screw Fig 7 8 9 e STUDIO200 250 series Motor harness Harness connector plate Scanner motor assembly 045 1 Fig 7 8 11 Scanner motor Screw Timing belt 142 4 e Screw m Fig 7 8 12 046 1 e STUDIO160 200 250 SCANNER D INV PWA e STUDIO160 series 1 If an Original Cover 1600 ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it Detach top cover See Fig 2 6 2 Detach 2 connector from INV PWA CN1 CN2 Remove one screw and remove clamp Release one locking support and remove INV PWA assembly e STUDIO200 250 series 1 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it Detach top cover See Fig 2 6 2 Detach 2 connector from INV PWA CN1 CN2 Remove 2 screws and remove INV PWA as sembly Remove 2 screws release 2 locking supports and remove INV PWA E Scanner PWA 1 e STUDIO160 200 250 SCANNER If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Remove original glass See Fig 7 8 7 Remove 8 screws and remove blind plate e STUDIO160 series Remove 6 screws and remove blind plate e STUDIO200 250 series Connector Locking support INV PWA assembly CN2 049 6 a
65. 10 45V 10 1 1 SENS4 11 1 425 12 1 26 1 1 1 3 1 1 2 APS 4 1 1 1 1 1 1 1 1 1 CN10 1 1 1 3 SENS5 2 1 4 2 APS 5 sa 1 1 45V 4 SENS6 5 __ 501 6 t il 1 1 1 1 1 2 APS 6 Ll e STUDIO 160 series 1 1 1 1 CN2 i LAMP 1 model 11 4 2 nete uc 1 F 1 sak 1 E 4 e STUDIO 200 250 series 111 EXPO LAMP AT 1 LAMP 5 1 a 1 5 m 2 2 2 12 1 1 B CN2 CN2 24 1 4 1 3 LAMP 1 LAMP 2 4 2 INV EXPO AW 2 EXPO LAMP AW PG 3 4 4 1 LAMP i NC 4 1 e STUDIO 200 250 series 17 01 16 Fig 17 1 8 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS 17 8 December 2002 TOSHIBA TEC Entrance
66. 10D11 84 84 SA2 19 19 PM10D13 85 85 4 20 20 PM10D15 86 86 500 21 21 LSYNC1 87 87 302 22 22 ODACK1X 88 88 504 23 23 RX1 89 89 506 24 24 90 90 508 25 25 CHO2 91 91 5010 26 26 5 92 92 5012 27 27 93 93 014 28 28 FAXDET 94 94 1 29 29 3 3VB 95 95 1 30 30 3 3V 96 96 12 97 97 12 98 98 am 5VPS 99 99 BV 100 100 17 01 01 December 2002 TOSHIBA TEC Fig 17 1 1 17 1 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS 1 4 1 ehe PCDIR 2 1 nStrobe 1 PCFWENA 3 2 2 PCIFDO 4 f 3 DATA2 3 PCIFD1 5 if 4 DATA3 4 PCIFD2 6 5 4 5 PCIFD3 7 T 5 6 PCIFD4 8 7 DATAG 7 PCIFDS 9 8 DATA7 8 PCIFD6 10 r 9 9 PCIFD7 11 10 nACK 10 PCDET 12 4 11 Busy 11 NSTROB 13 r 12 12 NATFD 14 f 18 Select 13 NINIT 15 if HB nAutoFd 14 2WNINI 16 15 NC 15 NSELIN 17 7 18 16 18 Fa 17 BUSY 19 Logic 18 20 r 19 PWA F PIF 55145 SELECT 21 n SG 20 NFAULT 22 21 21 5VPS 23 T 22 36 22 5VPS 24 ig 29 SG 23 SG 25 24 SG 24 SG 26 if 25 56 25 T 26 SG 26 SG 27 28 CN5 1 2 1 29 POEX 1 56
67. 2 4 01 1 The I O port GA 1 IC7 turns the TONEREN signal toner detection start signal to High level to turn on Q1 This allows a 5V power supply to be delivered to the TES driver 1 2 The TES driver sends the TES signal drive detection signal to the toner empty sensor 1 3 The toner empty sensor performs oscillation by the TES signal Atthis time if there is much toner in the process unit the oscillation of the sensor is obstructed due to the pressure of the toner thus causing the waveform of the TES signal to change On the other hand if there is not much toner in it the pressure of the toner decreases to cause the sensor to perform oscillation so that the waveform of the TES signal almost remains unchanged 4 The TES driver detects a change in phase of the TES signal and judges that there is no toner when a change in phase is small At this time the TES driver sends the TESMON signal toner empty signal at Low level to the port GA 2 IC6 5 The CPU IC66 judges the amount of remaining toner by the number of times the level of the TESMON signal becomes low e STUDIO160 200 250 DEVELOPER SECTION 12 6 December 2002 TOSHIBA TEC 12 5 3 Toner supply motor The toner supply motor is provided to supply toner for the process unit The toner supply motor is driven by transistor IC5 and its circuit is structured as follows Relay PWA Toner supply motor Main PWA Transistor array
68. 2 TOSHIBA TEC b High pass filter circuit When an original with sharp image edges text originals etc is optically scanned and its image signals are output through the CCD the edges tend to become dull due to the characteristics of the lens used and other reasons To compensate for this phenomenon edge enhancement operation is performed on the differ ences in density between the target pixel and its adjacent ones to obtain an image with high reproducibility of the original Solid black area Low contrast area Original Image signal After correction 07006 Editing functions such as enlargement reduction and mirror image are performed using line memory 3 Image memory editing The line memory is used for storing one line of pixel data in the primary scanning direction and updated with new pixel data each time the next line is scanned a Enlargement reduction This function is accomplished by using line memory control in a part of operations Example Enlargement 100 o 200 07007 Example Reduction 10076 50 07008 December 2002 TOSHIBA TEC 6 5 e STUDIO160 200 250 IMAGE PROCESSING b Mirror image This function reverses the right side and the left side in the primary scanning direction of the original and outputs this reversed image 4 Editing processing This function reverses image data from negative to positive or vice versa on the entire area 5 Gamma correction This function c
69. 200 250 PC BOARD 16 4 PWA F PNL Of TOSHIBA A us S Je du og rd 75 9 o AHCMK P3X W V oq Bcc Js d mer e ie 3 m velt Los 4 7 X i ER 158 1010 E 8 A d rN PIE Ec E 2 405 902 2 n C 3 EB 8 End VO AZ Mex 8 LBL PCB AT i MELE ze js 3 2 oN A pK 2 2 pma x 16 04 01 16 5 PWA F VR TOSHIBA 8 41301522000 3 HBJB0012803 b 3 s ad MADE IN JAPAN 16 05 01 e STUDIO160 200 250 PCB BOARD 16 4 December 2002 TOSHIBA TEC 16 6 PWA F SLG 32 19 5 1 12 1 13 2 1 55 888 o 922 L L 5 MO Ego iua 99 onum WW ANN R3 M R96 ends E esr d soo GS ANN 2 5 RAI de ANA ns x 5 3 4 8 n x
70. 3 14 03 01 HR drive gear 2 Heater roller The heater roller pressure roller cleaner fuser roller and exit roller shaft turn as the driving force of the main motor is transmitted to them through each gear HR drive gear 3 HR drive gear 2 Heater roller Pressure roller Cleaner fuser roller HR drive gear 1 Exit drive gear 7 Exit drive gear 3 Exit drive gear 2 Exit drive gear 1 Exit roller shaft e STUDIO160 200 250 FUSER UNIT EXIT UNIT 14 2 December 2002 TOSHIBA TEC 14 4 Description of Operations 14 4 1 Fuser unit The power of the main motor is transmitted to the gear of the fuser through the main drive gear assembly to turn the heater roller Since the pressure roller is pressed against the heater roller by the spring it turns by the power of the heater roller Consequently the paper is transported by the heater roller and pressure roller When the paper is transported by the fuser unit electric power is supplied to the heater lamp inside the heater roller so that the toner image on the paper is melted and fixed by the heat of the heater roller surface and the pressure of the pressure roller respectively The temperature of the heater roller is controlled by turning on or off the heater lamp according to the value detected by the thermistor If the heat roller temperature exceeds the specified temperature due to an abnormal condition the supply of the electric power to the heater lamp is
71. 30 30 10 CCDRS 10 11 SVDEN 11 6 6 1 SGND 11 10 RXD 12 29 29 12 12 9 TXD 13 7 7 13 SGND 13 8 HT REQ 14 28 28 14 2 14 7 SC ACK 15 8 8 15 SGND 15 6 16 27 27 16 CK2A 16 5 17 9 9 17 SGND 17 4 PWA F MAN 18 26 26 18 CCDSH 18 8 12 14 PHSYC 19 10 10 19 45V 19 2 20 25 25 20 45V 20 1 21 11 11 21 SC REQ 22 24 24 22 NC 23 12 12 28 APDS1 24 23 23 24 25 13 13 25 5VPS 26 22 22 26 45V 27 14 14 27 3 3 28 21 21 28 3 3 29 15 15 29 20 20 30 31 16 16 31 PWA F CCD 32 19 19 32 12 33 17 17 33 18 18 34 9 CN5 1 1 PWA F SLG PWA F RLY 24VF1 2 2 1 2 3 10 PG 3 3 PG 4 4 5V 1 3 SG 2 2 HOME SEN HPSEN 3 1 5V 4 36 5 PLSEN 6 3 2 ORCOV SEN 1 1 CN7 2 SA 1 3 24 2 4 S A 3 5 SB 4 6 24 5 7 5 6 8 9 10 11 Fig 17 1 7 17 01 21 December 2002 TOSHIBA TEC 17 7 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS
72. 38 Toner supply gear e STUDIO160 200 250 OUTLINE OF THE MACHINE December 2002 TOSHIBA TEC B Rear view 21 22 17 18 19 20 December 2002 TOSHIBA TEC 2 3 e STUDIO160 200 250 OUTLINE OF THE MACHINE Scanner drive gear 40 Cassette feed gear 6 Timing belt 157 41 Cassette feed gear 7 Scanner motor pulley 42 Cassette feed gear 8 Timing belt 142 43 2nd feed clutch Scanner motor 44 Clutch pulley Wire R 45 Tray up motor PS fan motor 46 Tray up gear 1 Exit drive gear 1 47 Tray up gear 2 NI o0 07 BR OINI gt Exit drive gear 2 48 Tray up gear 3 Exit drive gear 3 49 Tray up gear 4 x Exit drive gear 4 50 Tray up gear 5 Exit drive gear 6 51 Pinch roller gear e STUDIO200 250 series Exit drive gear 5 52 Registration wheel Exit drive gear 7 HR drive gear 1 O HR drive gear 2 N HR drive gear 3 Transmission gear 1 Transmission gear 2 N Main drive gear 1 N Main drive gear 2 N N Main drive gear 3 N Main drive gear 4 N Main drive gear 5 N Main drive gear 6 Timing belt 176 Developer drive pulley N N N Main motor N Drum drive gear Transmission gear 3
73. 39 D ca I lcs 1610 B D 1020 C16 PWB F MAN WW2 41301566000 1089 103 009812 28 1 91 m asc nid ET i December 2002 TOSHIBA TEC 18 88 p l rs i 18 S SES 163 coo 1106 8 500 PIO OOs gjg 1S4 1093 Ors 288 gi 1 14 28 50 16 1 16 01 01 e STUDIO160 200 250 PC BOARD 16 2 PWA F RLY 6 B FAN 6 2
74. 5 2 3 4 5 6 7 7 2 Original size detection 1 If the copier is set in the original size detection mode the carriage 1 is set at its home position 2 Detection is performed in an instant when the platen cover is opened each sensor receive the reflect ing light and the condition of a matrix shown in 4 are satisfied 3 Original size detection is performed when the output signals from each sensor are input to the scan ner MPU IC1 on the scanner control PWA e STUDIO160 200 250 SCANNER 7 14 December 2002 TOSHIBA TEC ASD AUD CND SAD MJD models APS 5 APS 4 A5 R 4 B5 R 4 53 0 B5 4 B4 4 m M 4 4 4 d 08 07 03 NAD model APS 5 4 APS 6 APS 4 STRA LTR 4 LG 4 qi LD 4 08 07 04 December 2002 TOSHIBA TEC 7 15 e STUDIO160 200 250 SCANNER 4 Original size is determined by a combination of the presence absence of the original at the each locations stated in step 3 Combination charts for size determination of ASD AUD CND SAD MJD models and NAD model are shown below ASD AUD CND SAD MJD models 1 beam sensor No APS 2 APS 3 APS 4 Q Original presence blank Original absence NAD model 1 beam sensor No APS 3 5 4 APS 5 Q Original presence
75. 5002 is at tached to the copier detach it Detach the toner cartridge Detach ozone cover See Fig 2 6 9 Detach paper tray cover See Fig 2 6 10 Remove LVPS See Fig 2 6 31 and 2 6 32 Fig 8 4 1 Release 2 hooks and remove duct assembly 066 1 Release the clamp and detach one connector Connector noo Remove 3 screws take out laser scanner unit 10 Detach the one connector and remove laser scanner unit CAUTION To prevent electrostatic destruction do not touch the connector pin when plugging or unplugging the connector it Note When the lens gets dirty blow away the dirt with the blower Connector 067 2 Fig 8 4 2 e STUDIO160 200 250 PRINTING 8 6 December 2002 TOSHIBA TEC 9 9 1 9 2 9 3 9 4 9 5 9 6 9 7 PAPER FEEDING SYSTEM 9 1 9 1 REC EU 9 1 Drive Descrip ud Ea ld dun 9 3 9 3 1 Pickup feed roller feed roller and registration roller 9 3 9 32 Wray t e 9 3 Description of Operation ucc oe ete Eee EU ERA 9 4 9 4 1 Tray SOCHOU per ceu ida eon edu ee Luar 9 4 942 Paper feeding 9 4 9 4 3 Paper 5 9 5 944 Cassette feeding op
76. 91 99 v 2 9 95 2919 v MOO 4 9 6 0 1499898 v 8109 99 1 9 9 v 1 8 9 9 0 c 9 7 c y 8109 2 9 c 0 9 MOO 2 9 c 0 9 8108 9 c vy 9 2 v 0 y 8109 Iz viad 2 y 8109 0 cb y 8109 109 MO 6 8 99 CI V ejeq jndjno uoneyox3 The relations between the motor drive condition and each output of the BDTA B signal BCKO signal and BSTB signal are shown below jeus 3ndjno pue uonipuoo e STUDIO160 200 250 SCANNER December 2002 TOSHIBA TEC Output signal pattern BCKO BSTB 1 0 2 3 BDTA 55 5 BDTB 4 71 4 5 6 7 08 04 02 e STUDIO160 200 250 SCANNER 7 8 December 2002 TOSHIBA TEC 7 5 Exposure Lamp Control 7 5 1 Exposure lamp External electrode type Xenon fluorescent lamp is used as an exposure lamp in this copier 1 Structure Fluorescer is applied on the inside surface of the lamp pipe except a part to be an opening which is filled with the Xenon gas A pair of the external electrodes covered by the film with the adhesive agent is attached over the pipe PET
77. CCD elements are uneven Consequently these problems must be compensated This is called shading compensation Shad ing compensation involves normalizing optical energy according to the following equation based on already known scanned black data and white data and compensating for uneven illuminance of the image data and device unevenness S K W K where k Coefficient S Image data before compensation K Black data in black memory White data in white memory December 2002 TOSHIBA TEC 7 13 e STUDIO160 200 250 SCANNER 7 7 Automatic Original Size Detection Circuit e STUDIO200 250 series This circuit detects the original size standard sizes only using reflection type photosensors on the base frame of the optical unit 7 7 1 Principle of original size detection The reflection type photosensors are located on the base frame of the optical unit Each photosensor comprises an infrared light emitting diode LED light emitting side and a phototransistor light receiving side When an original is placed on the original glass the light emitted by the LED s is reflected by the original and led to the phototransistor In this way the presence or absence of an original is detected by whether reflected light exists or not ASD AUD CND SAD MJD models NAD model Original Original glass Original Original glass U 08 07 02 08 07 01 APS 1 2 3 4 5
78. Capacity r Feeder 9 9 v A A A Fig 5 2 6 Misfeed in copier LCF December 2002 TOSHIBA TEC Misfeed doc feefer iOpen jam access 0 Icover of Misfeed in doc feefer iTurn light bl iMisfeed doc feefer Remove the misfeed A Isheets of original 3 4 iClose jam access of feeder 4 4 Fig 5 2 7 Misfeed in doc feeder ADF December 2002 TOSHIBA TEC 5 9 e STUDIO160 200 250 DISPLAY UNIT P Misfeed in finisher G finisher away from copier c Misfeed in finisher E pener any misfeed A Misfeed in finisher from Examine stapler A finisher 2 6 _ Misfeed in finisher sil Join finisher Ito copier Misfeed in finisher Open bridge cover Misfeed in finisher iRemove any misfeed from iClose bridge cover A 6 6 v Fig 5 2 8 Misfeed in finisher Finisher e STUDIO160 200 250 DISPLAY UNIT 5 10 December 2002 TOSHIBA TEC Misfeed in duplexer Open duplex unit 1 7 any misfeed from in duplexer Open side cover Eo the copier duplexer iRelease light blue lfuser latches Misfeed in duplexer iRemove any misfeed from copier 5 7 v Misfeed in duplexer Close side cover E the copier
79. Clean the surface of mirror 3 if dirty 2 For mounting Carriage 2 referto the Ser vice Handbook See Chapter 1 8 CAUTION Never turn the angle adjusting screw of mirror I Scanner drive shaft wire 1 1 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it 2 If a STP KK 1600 is attached to the copier detach it 3 Detach the manual pocket If a Finisher MJ 1011 is attached to the copier detach the finisher plate 5 Remove scanner assembly See Fig 7 8 1 to 7 8 6 6 Remove scanner motor assembly See Fig 7 8 9 and 7 8 11 7T Release the lamp cable See Fig 7 8 19 to 7 8 22 8 Remove the blind plate See Fig 7 8 16 and 7 8 17 9 Remove carriage 1 See Fig 7 8 24 10 Detach wire from carriage 2 See Fig 7 8 27 11 Remove wire roller from scanner frame and release wire 12 Detach 2 E rings and 2 bearings remove scanner drive shaft assembly and remove timing belt 157 13 Detach wire from scanner drive shaft assembly 14 Remove the screw and remove scanner drive gear Note For winding the wire refer to the Service Handbook See Chapter 1 8 e STUDIO160 200 250 SCANNER Spring plate Spring plate Screw Fig 7 8 30 Wire Wire roller Fig 7 8 31 Scanner drive gear Wire Timing belt 157 Screw Scanner drive shaft Bearing N 064 1 December 2002 TOSHIBA TEC J CCD unit 1 If
80. Details or Copying PIOGeSS 3 2 List of Copying Process 3 9 Disassembly and 3 10 3 COPYING PROCESS 3 1 Copying Process Scanning CCD Image processing Orignal exposure Xenon lamp 600DPI 7450 pixels 14W 1900 V rms for e STUDIO160 series 1250 V rms for e STUDIO200 250 series Fixing Heat roller Paper exit 100V 900W x 1 200V 400W x 1 500W x 1 Cleaning lt Discharger LED array Separation Wavelength 660 nm x 15 5 H 4 3 KV 4 1 KV Charger Charger L 3 9 KV 674 V DC 637 V DC 26 for e STUDIO200 250 for e STUDIO160 7 2 series series 1 Transfer H 5 5 KV Printing C 52KV Semiconductor laser 3 Pw 3 5 nJ mm n Guide bias Toner 5 375 V DC Carrier Development Magnetic roller Sheet feed bypass Bias 460 V DC Bias 430 V DC 100 sheets Option 150 V DC 4150 V DC for e STUDIO200 250 for e STUDIO160 series series Paper cassette 550 sheets Paper feed unit 550 sheets Option Paper feed pedestal 550 sheets Option Cassette module 550 sheets Option Large capacit
81. Heat roller bushing 097 2 C ring Fig 14 7 33 12 Remove heat roller Heat roller Note When heat roller is replaced apply 0 075g of white grease molykote HP 300 to the area around the boss inside of HR drive gear 2 See Fig 14 7 25 097 8 Fig 14 7 34 December 2002 TOSHIBA TEC 14 19 eSTUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 13 Remove 2 screws to detach 2 washers secur ing the bearing 14 Remove the press roller by removing 2 E rings and 2 bearings 15 Release the cleaning roller bushing and remove the cleaning roller 16 Release the spring and detach the cleaning roller bushing e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 14 20 Press roller Washer 097 9 Ed Screw Bearing Bearing E ring Fig 14 7 35 Cleaning roller 097 10 cleaning roller Spring _ bushing 097 6 Cleaning roller dL bushing 097 7 Fig 14 7 38 December 2002 TOSHIBA TEC J Exit unit 1 December 2002 TOSHIBA TEC If a Finisher MJ 1011 is attached to the copier detach the finisher plate and junction block If JSP 5001 or OCT MJ 5002 is at tached to the copier detach it If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Detach scanner cover See Fig 2 6 3 Detach control panel front cover See Fig 2 6 6 Detach control panel bottom cover See Fig 2 6 7 Detach ozo
82. Hz 127VAC 50Hz 60Hz 220 240VAC 50Hz 60Hz Power consumption 1 4 KW or less Dimensions W x D x H mm e STUDIO160 series e STUDIO200 250 series Standard 530 x 554 x 600 mm 530 x 554 x 600 mm Standard Original cover 530 x 554 x 643 mm 530 x 554 x 643 mm Standard ADF 530 x 554 x 731 mm 530 x 554 x 731 mm Standard RADF 545 x 599 x 772 mm 545 x 599 x 772 mm Standard ADU RADF 607 x 599 x 772 mm 607 x 599 x 772 mm Standard Original cover PFU 530 x 554 x 757 mm 530 x 554 x 757 mm Standard Original cover PFU 530 x 554 x 1039 mm 530 x 554 x 1039 mm Standard Original cover JSP 604 x 554 x 643 mm 604 x 554 x 643 mm Standard Original cover SFB 801 x 554 x 643 mm 801 x 554 x 643 mm Standard Original cover OCT 604 x 554 x 643 mm 604 x 554 x 643 mm Standard Original cover 787 x 554 x 676 mm 787 x 554 x 676 mm Standard Original cover Finisher 957 x 554 x 643 mm e STUDIO160 series e STUDIO160 200 250 SPECIFICATIONS 03 4 December 2002 TOSHIBA TEC e STUDIO200 250 series 22 m EMI MENS SS EA m Ui 2221 T 101 2 1 2 Accessories Setup instructi
83. L AC AL 1 FG 2 N AC OIN 3 4 2 STP 1 Option MAIN SW CN120 o To 1 1 1 SWAL 2 3 oo 2 SW O L 4 4 m SIIL SW FRIL SW C O IN 1 57 C O OU 2 PS LVPS US EU AT AW ASD AUD CND SAD models 1 2 SCN THM 3 PWA F RLY CN111 4 4 10 1 NC 2 N 1 Lo SCN DH 100 115 230 CN23 PWA F FUS HT1ON 1 1 HTION 2 laav 112 5 5v HL 1 1 svps 4 4 5VPS 2 2 Nl s iod 12 5 5 12V HN 3 2V 6 6 12V 24 7 7 24 uns 8 8 PG Not used 9 24vSW Es PG 10 10 PG Fo 2 11 2 i PWS 12 12 PWS SG 13 13 sG udi RCM CR SG 14 14 86 SG 15 15 86 Fuser n 2 AG 16 16 AG NAD SAD models 24VF1 17 17 24VFU2 CN122 PG 18 18 PG 3 FUS THM PG 19 19 PG 2 2 24VF2 20 20 24VFU1 NC 1 U900 HL j 1 CN122 7 _ HL 1 3 FUS THM 1 2 2 HN2 3 1 i E500 HL L4 E400 HL i CN175 m LL ASDIAUDICNDIMD models CHK 1 6 1 5V 2 5 2 anna 3 1 45V 4 3 4 ATH2 5 2 5 6 1 6 MEAS December 2002 TOSHIBA TEC Fig 17 1 9 17 9 17 01 17 e STUDIO160 200 250 WIRE HARNESS CONNECTION DIAGRAMS OUT6 2 CN24 CN1 Paper guide plate CCON DVVR TCON TCVR VM PG GVR SPON SPVR PGON
84. L C43 is displayed if the heat roller temperature is below 40 C the output voltage of heater thermistor 1 is 0 1599V continuously for 500 milliseconds after the error diagnosis performed during warming up ends 3 lt Heater lamp abnormal after abnormal diagnosis performed during warming up or after the Ready state SERVICE CALL C44 is displayed if the heat roller temperature does not reach the ready set tem perature even 205 seconds after the start of warming up or if the temperature at the center of the heat roller is above 230 C the output voltage of heater thermistor 1 is 3 09V continuously for 500 millisec onds or below 100 C the output voltage of heater thermistor 1 is 0 6407V continuously for 500 milliseconds after the Ready state 4 Thermistor abnormal at the heat roller ends SERVICE CALL C45 is displayed if the heat roller end temperature is above 270 the output voltage of heater thermistor 2 is 2 72V continuously for 500 milliseconds or below 40 C the output voltage of heater thermistor 2 is 0 0702V continuously for 500 milliseconds after the Ready state e STUDIO160 200 250 FUSER UNIT EXIT UNIT 14 6 December 2002 TOSHIBA TEC 5 Thermistor Heater status counter control Toenhance the fuser unit safety CPU works to provide the following protection After tow consecutive C41 errors if a third C41 error has occurred turning the power OFF and then ON does not work to turn ON the heater lamp instead im
85. MJD models Entrance A ASD AUD ONDIMJD models 1 Noise 4A 125V NAD SAD models fier Wer AN2EOW ASD AUD CNDIMID models 24VFU2 Switching reguretor 5 circuit 4A 125V NAD SAD models 4A 250V ASD AUD CND MJD models j ds 24VFU1 DP2000 2500 series PWS Stapler Option 12V 2 Relay PWA 12 5 j 5 Switching M M regurator Fuser Heater lamp drive circuit circuit i 3 3V Fuser thermostat 1 Fuser thermostat 2 AG Heater lamp a CO Heater lamp 1 control circuit 1 PG Heater lamp Heater lamp 2 control circuit 2 ASD AUD CND MJD models 15 01 02 Power supply unit Interlock switch Interlock switch Side cover Front cover SW O N SW O L 4 DC output circuit 3 ll Fig 15 1 1 e STUDIO160 200 250 POWER SUPPLY UNIT 1 December 2002 TOSHIBA TEC 15 15 2 DC Output Circuit This circuit converts the AC voltage input from the inlet to each DC voltage 24V 12V 12V 5V 3 3V and delivers it to each part of the machine Turning on the main switch causes the supply of all DC voltages to begin Each DC voltage is supplied or cut off when the Power Save
86. O RADIA O INVISIVEL DE LASER QUANDO A TAMPA EST ABERTA OS BLOQUEIOS TAPEADOS EVITE A EXPOSI O AOS RAIOS AL Fig 8 2 1 CAUTION Do not insert tools that are highly reflective into the path of the laser beam Remove all watches rings bracelets etc e STUDIO160 200 250 PRINTING 8 2 December 2002 TOSHIBA TEC 2 Polygonal Mirror Motor Unit The polygonal mirror motor unit comprises a po lygonal mirror and a polygonal mirror motor Polygonal mirror motor Drum The polygonal mirror motor rotates the po lygonal mirror at high speed The DC motor controls the rotation speed of the mirror as follows e STUDIO160 series 600 dpi 20 527 56 rpm 400 dpi 13 382 60 rpm Laser light e STUDIO200 250 series 600 27 874 016 rpm Drum 400 dpi 18 582 677 rpm Polygonal mirror The laser beams emitted from the laser di ode are reflected by this mirror As the po Laser light lygonal mirror is rotated by the polygonal mirror motor the direction of the reflected laser light moves in sync with the rotation The direction of movement is the primary scanning direction of the image with each single scan ending in one plane of the po Drum lygonal mirror As the polygonal mirror has six planes six scans are completed in one rotation of the Laser light polygonal mirror 09 02 05 Fig 8 2 2 One scan is completed by completion of steps to One scan is carried out on one plane of the polygonal
87. O160 200 250 WIRE HARNESS CONNECTION DIAGRAMS 18 PAGE MEMORY BOARD 18 1 Oe Ms Obiter ned Nus e NON NS EM DICERE 18 1 18 2 Rp 18 2 18 2 1 Interfaces aate de toad bip 18 2 10 2 2 SCNEM AUC 18 3 18 3 Description of Function 55 Db naga dA di Ra Reb 18 5 156 3 1 Basic functions reser rem Dice RUE ERR e rete 18 5 18 3 2 Editing 18 PAGE MEMORY BOARD 18 1 Introduction The page memory board stores digital image data scanned on the digital copier in page Units so that editing function such as rotation and sorting can be applied before output The page memory board supports the following basic functions 1 Scanning Writes digital image data scanned on the digital copier into the page memory 2 Printing Outputs image data in the memory to the printer 3 Compression decompression Compresses image data when writing image data to memory at the scan ner processor and decompresses the image data when outputting to the printer at the printer output processor 4 Editing Executes the following processes the image data saved in the page memory Makes multi image copies Rotates images December 2002 TOSHIBA TEC 18 1 e STUDIO160 200 250 PAGE MEMORY BOARD 18 2 Structure The page memory boards are located on the main board when the memory cover is remove
88. Q1 has turned on If Q2 has turned on Q1 and Q2 should be substituted for each other 5 Bias voltage of Q1 is produced in the Nb winding of the transformer T1 to allow Q1 to completely turn on At this time Q2 turns off because it is reverse biased 6 When current flows through T1 the primary circuit resonates due to the Np winding and capacitor C1 This causes the bias voltage of the Nb winding to be reversed 7 Q1 turns off due to the reverse bias voltage and Q2 turns on As Q1 and Q2 turn on and off alternately in this way high frequency voltage is produced in the primary circuit of T1 This voltage is boosted by the Np winding and Ns winding and supplied to the exposure lamp for lighting Scanner control PWA Inverter PWA T Exposure lamp CPUAO 19 7 CPUDO 15 08 05 01 e STUDIO160 200 250 SCANNER 7 10 December 2002 TOSHIBA TEC e STUDIO200 250 series 1 The motor control IC 4 turns the LAMP signal to the HIGH level 2 The transistor Q3 turns on and the LAMP turns to the GND level 3 The transistor Q3 Q5 Q7 on the Inverter PWA turns on to apply 24V to the switching regulator IC IC1 4 IC1 turns on FET Q1 5 Current flows through the Np winding of the transformer T1 where energy is accumulated 6 IC1 turns off Q1 At this time
89. Reference 4m position 7 Cover sheet Fig 3 4 13 3 4 13 e STUDIO160 200 250 COPYING PROCESS 4 Peel off the cover sheet A from the developer assembly Cover sheet A the surface to be attached Fig 3 4 14 Notes 1 Before attaching the cover sheet A wipe 2 Attach the recovery sheet in the posi tion described in right Attach the cover Reference sheet A securely with no portion lifted and position no wrinkles appeared 3 4 15 G Developer material 1 Remove the toner cartridge and the process unit Detach the drum assembly See Fig 3 4 2 3 Remove 2 screws and detach the developer cover 4 Turn developer assembly up side down detach the old developer material e STUDIO160 200 250 COPYING PROCESS 3 14 Cover sheet A Fig 3 4 15 Fig 3 4 16 Developer assembly Fig 3 4 17 eem December 2002 TOSHIBA TEC 5 Cleanthe developer materials remaining on the surface of the magnetic roller inside of the de veloper assembly by a vacuum cleaner Notes 1 Be careful not to damage the surface of the magnetic roller 2 Be careful so that the vacuum cleaner does not touch the toner empty sensor 3 Be careful not to damage the mylar for stirring 6 Fill with new developer material 7 Shakethe developer assembly from right
90. S E03 YES End of drum Process unit fan motor at low speed Heater Polygon motor ON Process unit fan motor NG YES Service call C96 1 hinds of sensors Feed sensor Exit sensor Option cassette feed sensor with PFU PFP installed PFP paper feed sensor Upper with PFP installed ADU paper jam sensor Upper Lower with ADU installed e STUDIO160 200 250 COPIER OPERATION Polygon motor NG CA1 Toner low YES toner empty Main motor ON NO Main motor NG NO C01 Supply of toner v Stop of main motor A Print temperature OK NO YES Over 40 C 205 sec after heater ON Service call Service call C44 C43 or 44 YES Toner empty e STUDIO160 200 250 COPIER OPERATION 4 10 December 2002 TOSHIBA TEC 4 4 2 Copying at platen Simplex Simplex Start button ON Scanning of document Cassette feed Ejection NO YES Standby December 2002 TOSHIBA TEC 4 11 e STUDIO160 200 250 COPIER OPERATION 4 4 3 Copying using cassette 1 San baer ON 3 Main motor ON Polygon motor ON Process unit fan motor high speed rotation Development bias ON Separation bias ON Charge bias ON Discharge l
91. S ASIC PTC Polygonal motor MAIN board drive board Semicon ductor laser device Photosen sitive drum Fig 6 1 1 The following table describes the board and its functions for image processing Board No of ASIC Function SLG Board 1 High quality image processing image memory editing editing process ing gamma correction processing tone processing and external out put systems interface MAIN Board Image area control laser relation control smooting processing December 2002 TOSHIBA TEC 6 1 e STUDIO160 200 250 IMAGE PROCESSING 6 2 Image Processing Circuit 1 Outline This digital copier optically scans the original placed on the original glass and reads the original image using the CCD charge coupled device and converts the image into electrical signals The electrical signals are A D converted into digital signals and input to the image processing section where shading correction compensation for variance in the CCD or the light source and various image processing operations are performed The results are output to the printer 2 Image Processing Circuit on the SLG Board The SLG board contains an image processing ASIC which implements the following functions Functions High quality image processing image memory editing editing processing gamma correction pro cessing tone processing and external output system interface CCD board SLG board A D con
92. STUDIO160 200 250 SCANNER 5 CONTROL The Image processing board performs image processing amplification mixing and A D conversion of electrical signals obtained by photo voltaic conversion by the CCD CCD PWA Scanner control PWA 08 02 04 6 Automatic original detection unit e S TUDIO200 250 series The automatic original detection unit APS sensor uses sensors located in front of the lens cover and on the base frame for detection of the size of the original without the process of scanning e STUDIO160 200 250 SCANNER 7 4 December 2002 TOSHIBA TEC 7 3 Scanner Motor Operation Carriage 1 Timing belt 142 Carriage 2 roller AN Carriage 2 Timing belt 157 ire Wire roller Wire roller Scanner drive shaft Scanner motor Scanner drive gear Scanner motor pulley 08 03 01 Rotation of the scanner motor is transmitted to carriages 1 and 2 via the timing belt and carriage drive wire First of all carriages 1 and 2 moves to the home position Home position is detected by carriage 1 passing the home position sensor Carriages 1 and 2 then scan the original when the START key on the control panel is depressed December 2002 TOSHIBA TEC 7 5 e STUDIO160 200 250 SCANNER 7 4 Scanner Motor Drive Circuit The drive circuit is mainly comprised of the following Scanner MPU IC1 Motor control IC 4 e Moto
93. TOSHIBA ERVICE MANUAL DIGITAL MULTI FUNCTION 010160 200 250 STU File No SME02000900 Version 00 2002 TOSHIBA TEC CORPORATION All rights reserved GENERAL PRECAUTIONS REGARDING THE INSTALLATION AND SERVICE FOR e STUDIO160 200 250 SERIES The installation and service should be done by a qualified service technician 1 Transportation When transporting installing the copier employ two persons and be sure to use the positions as indicated below The copier is fairly heavy and weighs approximately 50 kg 110 Ib therefore pay full attention when handling it 4 portions 2 Installation Be sure to use a dedicated outlet with AC 115 or 120V 15A 220V 230V 240 10 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 After having installed the copier be sure to push the carrying handles into the copier 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
94. The D A converter converts the input data to a TCVR signal transfer bias reference voltage signal in analog form and sends it to the HVPS The I O port GA 2 IC6 turns the TCON signal transfer charger control signal to Low level The HVPS generates current based on the voltage value of the TCVR and delivers to the transfer charger December 2002 TOSHIBA TEC 11 5 e STUDIO160 200 250 DRUM RELATED SECTION Separation Separation charger The CPU IC66 loads reference voltage data for separation bias into the register of the system control GA IC34 4 The system control GA converts the data loaded into the register to DI signal ADC setting signal in serial format and sends it to the D A converter IC 17 at the timing of the CLK signal transfer clock signal and LD signal load data signal The D A converter converts the input data to a SPDVR signal separation bias reference voltage signal analog form and sends it to the HVPS The port GA 2 IC6 turns the SPON signal separation charger control signal to Low level 4 The HVPS generates current based on the voltage value of the SPDVR signal and delivers it to the separation charger Guide bias Paper guide plate Pinch roller The port GA 2 IC6 turns the SPON signal separation charger control signal to Low level The port GA 2 turns the PGON signal paper guide plate pinch roller control signal to Low lev
95. UDIO160 200 250 CLEANER SECTION 13 2 December 2002 TOSHIBA TEC 13 4 Function of Each Part 1 Main blade Scrapes off residual toner on the drum surface The blade is pushed against the drum at a constant pressure by weight 2 Recovery blade Catches the toner after it is scraped off by the main blade 3 Cleaner paddle The cleaner paddle conveys the residual toner collected on the recovery blade to the toner recovery auger 4 Toner recovery auger Carries scrapped residual toner to the toner bag 5 Toner bag Stores the scraped residual toner carried by the toner recovery auger December 2002 TOSHIBA TEC 13 3 e STUDIO160 200 250 CLEANER SECTION 14 FUSER UNIT EXIT UNIT 14 1 14 1 General Description omi cest roba Qu iae Yat nive 14 1 T1212 SC OMSIMUICIION uui CORO COO Drei PIU 14 1 14 3 Drive Description sinnesro Cen td ds 14 2 14 4 Description of Operations 14 3 14 41 8 UU 2 ttp eb 14 3 14 32 Od ases 14 3 14 5 Functions of Each PEL urn d 14 4 145 1 Fuser Unit te ei die eet e Yeti i e E 14 4 14 5 2 Paper exit nib os aber Madina addons 14 4 14 6 Heater Control Circuit 14 6 14 6 1 Temperature detection section
96. UENA 40 40 12 11 11 CHO1 41 41 12 12 45V 42 42 13 13 SG 43 43 NC 14 14 SG 44 44 NC 15 15 3 3V 45 45 AG 16 16 PWA F NCU US EU 3 3V 46 46 17 17 Option 47 47 ANSDETO 18 18 412V 48 48 REVA1 19 19 49 49 20 20 50 50 HOOK1 21 21 IBACK1X 51 51 22 22 IDACK1X 52 52 5VPS 23 23 53 53 56 24 24 PM1ID1 54 54 5 25 25 PM1ID3 55 55 12V 26 26 1105 56 56 27 27 PM1ID7 57 57 12 28 28 1109 58 58 NC 29 29 11011 59 59 NC 11013 60 60 11015 61 61 IOCS9X 62 62 PWA F MAN IOWRX 63 63 1 14 INTMD1 64 64 PWA F FAX PWA F MAN 65 65 Option CN6 1 2 CN101 1 2 2 14 66 66 2 2 INTPMIX 1 1 BUCHG 67 67 IDREQIX 2 2 1 68 68 3 69 69 PM1IDO 4 4 70 70 1102 5 5 SD1 71 71 PMHD4 6 6 SD3 72 72 06 7 7 SD5 73 73 1108 507 74 74 PM1ID10 9 9 SD9 75 75 11012 10 10 5011 76 76 PM1ID14 11 11 SD13 77 77 DONE1 12 12 015 78 78 IOCS4X 13 13 PM10D1 79 79 IORDX 14 14 PM10D3 80 80 1 15 15 PWA F FAX PM1ODS5 81 81 16 16 Option PM10D7 82 82 BATVCC 17 17 1 2 PM10D9 83 83 BUCS 18 18 PM
97. WA VL PWA F VR TO Variable resistor PWA for adjusting the LCD A 2 LCD volume PWA display darkness LDR PWA LDR PWA which drives the laser A 2 Laser drive PWA PDV PWA PDV PWA which drives the polygon motor A 2 Polygonal motor drive PWA MEM 1 PWA F MEM 64 Mbyte expansion memory PWA A 1 MEM 2 Optional memory PWA Option GC 1050 December 2002 TOSHIBA TEC 2 13 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 Sensors Symbol Name Function Remarks APS 1 APS 1 Detects the size of document B 1 APS 2 5 2 e STUDIO200 250 series APS 3 APS 3 ASD AUD CND SAD MJD models 5 4 5 4 5 5 5 5 APS Automatic Paper Size detection sensor APS 2 5 2 Detects the size of document B 1 APS 3 APS 3 e STUDIO200 250 series NAD model 5 4 5 4 5 5 5 5 APS 6 APS 6 APS Automatic Paper Size detection sensor SEN1 HOME SEN Detects the first scanning position B 1 Home position sensor SEN2 ORCOV SEN Detects the open close state of the original B 1 Original cover sensor SEN3 EXT SEN Detects the transport of paper at the exit sec B 1 Exit sensor tion SEN4 FED SEN Detects the transport of paper at the devel B 1 Feed sensor oper SEN5 OCF SEN Detects the transport of paper from the op B 1 2nd feed sensor tion cassette 5 6 PE SEN Detects the presence or absence of p
98. XD11 PIXD13 PIXD15 3 3V 3 3V SG SG MEM2DET 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 45 46 47 48 49 50 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 PWA F MEM 27 2 28 Option 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 Fig 17 1 4 17 4 17 01 04 December 2002 TOSHIBA TEC CN14 1 2 5IORDX D15 013 011 09 07 05 D3 9 7 5 A1 PCIFD7 PCIFD5 PCIFD1 NFAULT PEERR NACK AUTINIT NATFD PCDIR DPOD15 DPOD13 DPOD11 DPOD9 DPOD7 DPOD5 DPOD3 DPOD1 DPOA16 DPOA14 DPOA12 DPOA10 DPOA6 DPOA4 DPOA2 CSP1X DPORWX INTPRX 5IOWRX IOCS3X D14 D12 D10 D8 D6 D4 D2 A8 A6 A4 A2 AU1SET PSVENA PCIFD6 PCIFD4 PWA F MAN 8 14 December 2002 TOSHIBA TEC 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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 11 12 13 14 15 16 17 18 19 20
99. Y PWA CN21 for e STUDIO160 10 Remove 4 screws and then release the clamp to remove MAIN PWA CN15 from RELAY PWA CN21 for e STUDIO200 250 CAUTION There is a danger of a component explosion if the battery is incorrectly replaced Replace only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions Important After the replacement of the MAIN PWA set the copier according to the following procedures December 2002 TOSHIBA TEC 2 e STUDIO160 CN8 MAIN PWA Fig 2 6 26 0221 29 e STUDIO160 200 250 OUTLINE OF THE MACHINE m Settings after the replacement of the MAIN PWA 1 Downloading of the MAIN PWA firmware For details see chapter 5 of the Service Handbook 2 Execution of 08 388 mode Reading of the total counter value 0 8 SET 3 Power ON 8 8 gt gt Power OFF 3 RAM Clear with the 1 3 and keys 1 3 START Power ON gt Warming up gt Power OFF 4 Execution of 08 665 mode 05 adjustment clear 08 programming clear 0 8 SET Power ON Pow
100. ached to the copier open it 4 Ifan ADU MD 0101 is attached to the copier open it Exit cover 5 Detach scanner cover See Fig 2 6 3 845 6 Detach control panel front cover See Fig 2 6 6 7 Detach control panel bottom cover See Fig 2 6 7 8 Detach front frame covers F and R See Fig 2 6 18 and 2 6 19 9 Remove stop ring and detach exit cover S Inner cover 1 Ifa Finisher MJ 1011 is attached to the copier detach the finisher plate and junction block 2 JSP MJ 5001 or MJ 5002 is attached to the copier detach it 3 Remove one screw holding the top cover L Inner cover 4 Remove 2 screws holding the left cover R 5 Detach ozone cover See Fig 2 6 9 6 Detach paper tray cover See Fig 2 6 10 7 Open side cover See Fig 2 6 18 8 Open exit cover See Fig 2 6 18 Fig 2 6 21 us 9 Remove one screw release 4 hooks and detach inner cover December 2002 TOSHIBA TEC 2 27 e STUDIO160 200 250 OUTLINE OF THE MACHINE T Front cover 1 Open front cover release one hook and detach front cover U Main cover 1 Ifa Finisher MJ 1011 is attached to the copier detach the finisher plate and junction block 2 JSP MJ 5001 or OCT MJ 5002 is attached to the copier detach it 3 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Main cover Screw Detach the toner cartridge Fig
101. amp ON v v Process system control Transfer system control Optical system control Retraction of carriage Polygon motor NO Main motor OK OK YES CA1 YES C01 p v v Laser ON Pickup clutch ON Exposure lamp ON Y Pickup clutch OFF Stop of carriage Transfer bias ON Ragistration roller Y clutch ON Advance of carriage Transfer guide bias ON i Ragistration roller Laser OFF clutch OFF White shading Scanning of document Remaining copy count 0 Transfer bias OFF Stop of carriage Transfer guide bias OFF Exit sensor NG Y check 1 Exposure lamp OFF YES etraction of carriage 2 Exit sensor NG Remainin cam E namna Stop of carriage EQ2 Charge bias OFF End Gro i ptical Main motor OFF system control YES Polygon motor OFF Development bias OFF Separation bias OFF Discharge lamp OFF End of process Process unit fan motor low speed rotation System control Standby e STUDIO160 200 250 COPIER OPERATION 4 12 December 2002 TOSHIBA TEC 5 5 1 5 2 9 9 5 4 DISPLAY UNIT 2 OFT Detailed Drawing of the Control Panel and the Display Panel
102. and detach the housing as sembly 4 Loosen 2 knobs and detach the fuser front Cover Fuser front cover Fig 14 7 11 e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 14 12 December 2002 TOSHIBA TEC 5 Remove the heat roller separator See Fig 14 7 8 6 Remove one screw and detach the spring plate Spring plate Fig 14 7 12 Mns 7 Release 2 hooks to detach the partition plate Partition plate Fig 14 7 13 002 8 Remove4 screws A type for NAD SAD models Alype type for ASD AUD CND MJD models to Screw release the heater cover assembly Screw Heater cover assembly Screw Fig 14 7 14 n 9 Remove 2 screws and detach the fuser Fuser thermostat 1 thermostat 1 Fig 14 7 15 ge December 2002 TOSHIBA TEC 14 13 e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT Notes Attach fuser thermostat assembly 1 so that itis placed at the lowest position Fuser thermostat assembly 1 Screw Make sure that the gap shown in the figure on the right is assured The optimal value is gap between 1 6 mm and 2 0 mm Within this value the fuser gap jig 1 5 mm can be smoothly inserted in the gap between the heat roller and fuser thermostat 1 but the other one 2 1 mm cannot be inserted If the gap value is other than the
103. aper B 3 Paper empty sensor placed in the copier cassette SEN7 T UP SEN Detects the lift up of the tray B 3 Tray up sensor SEN8 TNRE SEN Detects the toner density D 2 Toner empty sensor In Process unit e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 14 December 2002 TOSHIBA TEC 3 Switches Symbol Name Function Remarks Sw1 TC SW Detects the presence of a toner cartridge B 2 Toner cartridge switch SW2 FRCOV SW Detects the open close state of the front B 2 Front cover switch cover SW3 CST SW Detects the open close state of the copier B 3 Paper cassette switch cassette SW4 MAIN SW Power ON OFF switch D 2 Main switch SW5 SIIL SW Detects the open close state of the side cover D 2 Interlock switch when removing a jam at the transfer section Side cover etc and cuts off the 24V power supply SW6 FRIL SW Detects the open close state of the front cover D 2 Interlock switch when changing the toner cartridge etc and Front cover cuts off the 24 power supply 4 Motors Symbol Name Function Remarks M1 SCN MOT Performs scanning for the optical system C 1 Scanner motor M2 PU FAN Allows ozone to escape from the inside of C 1 Process unit FAN motor the copier M3 POW FAN Cools the inside of the copier C 1 Power supply unit FAN motor 4 VCM FAN Sucks the developed paper from the drum C 1 Vacuum FAN motor M5 MD MOT Main drive moto
104. ase in energy to which extended exposure is hazardous The laser optical system of the digital plain paper copier is encased in metal which in turn is housed in the external cover There is thus no risk of leaks during use nor during normal servic ing Note however that the laser beam is not visible and extreme care must be exercised when servicing involves focusing the laser Such operations are hazardous and must not be attempted unless you are specifically trained to work in this area The warning label shown below is attached on the PU guide assembly CAUTION 7 INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED AVOID EXPOSURE TO BEAM ATTENTION RAYONNEMENT LASER INVISIBLE DANGEREUX EN CAS D OUVERTURE ET LORSQUE LA S CURIT EST NEUTRALIS E VORSICHT UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GE FFNET UND SICHERHEITSVERRIEGELUNG BERBR CKT NICHT DEM STRAHL AUSSETZEN VARO AVATTAESSA JA SOUJALUKITUS OHITETTAESSA OLET ALTTIINA LASERSATEILYLLE ALA KATSO SATEESEEN VARNING OSYNLIG LASERSTR LNING NAR DENNA DEL AR PPNAD SPARREN URKOPPLAD BETRAKTA EJ 5 ADVARSEL USYNLIG LASERSTR LING VED BNING SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION ADVARSEL USYNLIG LASERSTRALING NAR DEKSEL OG SIKKERHEDSLAS BRYTES Lm CUIDADO RADIACI N INVISIBLE DE LASER CUANDO LA CUBIERTA ESTA ABIERTAY LAS UNIONES EST N VENCIDAS EVITE EXPOSICI N LOS RAYOS CUIDAD
105. assembly 035 e STUDIO160 200 250 DRIVE SYSTEM 6 Detach stop ring and remove cassette feed gear 1 regiatration roller clutch and regiatration Registration roller Registration roller clutch Bushing T Cassette feed Qu gear 1 Registration wheel Stop ring Fig 10 3 12 056 e STUDIO160 200 250 DRIVE SYSTEM 10 10 December 2002 TOSHIBA TEC 10 4 Main Motor 10 4 1 Main motor drive Main motor Relay PWA Main PWA le Phase Speed detection FG pulse 1C34 System control GA MMON MMSYNC 16 Motor drive MMBRK circuit port GA 2 MMDIR Rotor position detection 06 04 01 Values in are for e STUDIO200 250 series 1 The system control GA IC34 the Main PWA sends the MMCLK signal to the main motor 2 e STUDIO160 series The I O port GA 2 IC6 on the Main PWA sends the MMON signal at High level to the main motor This allows each excitation phase of the motor to be excited through the motor drive circuit to start rotation e STUDIO200 250 series The I O port GA 2 IC6 sends the MMON signal at High level MMDIR signal at Low level and MMBRK signal at High level to the main motor This allows each excitation phase of the motor to be excited through the motor drive circuit to start rotation 3 For the main motor
106. at the lower part of control panel release 2 hooks and remove control panel Note When attaching the control panel secure it with the clamp to prevent the core from dropping I Ozone filter 1 ozone cover 1 Ifa JSP MJ 5001 or OCT MJ 5002 is attached to the copier detach the tray Ozone filter 1 Lift ozone cover off while holding both sides Detach ozone filter 1 Ozone cover Ozone cover Fig 2 6 9 J Paper tray cover 1 Ifa Finisher MJ 1011 is attached to the copier Paper tray cover detach the finisher plate and junction block 2 JSP MJ 5001 MJ 5002 is attached to the copier detach it 3 Detach the toner cartridge Detach ozone cover See Fig 2 6 9 Power switch cover Remove 3 screws release 2 tabs and detach power switch cover 6 Detach paper tray cover Fig 2 6 10 m December 2002 TOSHIBA TEC 2 23 e STUDIO160 200 250 OUTLINE OF THE MACHINE K Paper cassette 1 Draw out paper cassette and lift it off in the direction of the arrow Paper cassette Fig 2 6 11 a L Left cover 1 Ifa Finisher MJ 1011 is attached to the copier detach it 2 Remove 3 screws holding the paper tray cover See Fig 2 6 10 3 Take out the paper cassette 4 Remove 4 screws and detach left cover Fig 2 6 12 o M Left cover R Screw Tea 1 Ifa Finisher MJ 1011 is attached to the copier of cover R detach it 2 Remove screws
107. be insert into the gap 5 Apply the screw lock paint to 3 screws 6 Close the developer cover and recon firm the gap If the gap is out of the specified value repeat the procedure from 1 When closing the developer cover do not push the magnetic roller guide December 2002 TOSHIBA TEC 3 17 e STUDIO160 200 250 COPYING PROCESS 2 Attach the doctor blade seal to the doc tor blade atthe position described in right 11 Detach the bushing located in rear side 12 Slide the bushing located in the front 13 Detach the magnetic roller assembly 14 Detach the bushing 15 Detach 2 washers and the 2 magnetic roller spacer e STUDIO160 200 250 COPYING PROCESS Doctor blade Reference position Fig 3 4 27 3427 Magnetic roller Fig 3 4 29 3 4 29 Washer Bushing Magnetic roller spacer Magnetic roller ode spacer Washer Magnetic roller Fig 3 4 30 pes December 2002 TOSHIBA TEC 4 4 1 4 2 4 3 44 COPIER OPERATION 4 1 Operation eti 4 1 Operation 4 1 4 251 sess ados id rto i atado nda 4 1 4 2 2 oett 4 2 4 2 3 Automatic feed copying using the START key 4 3 424 Bypass feed copying s nnn 4 4 4 29 Interdpt Gees hee eel 4 4 Fault Detect
108. ce technician e STUDIO160 200 250 DISPLAY UNIT December 2002 TOSHIBA TEC PAPER LWA4 AUTO FINISHING SORT 700 100 START PAPER ap AUTO FINISHING SORT ZOOM 65 Out of paper Cassettel Empty Open Cassettel FAX or COPY paper A Close Cassettel No action CLEAR STOP x 1 wx1 SET User Loads paper Press Start to resume _ 5 PAPER LUAA AUTO FINISHING SORT ZOOM 65 oCopy CSD START w x 1 SET 5 PAPER LUA4 0 qi AUTO FINISHING SORT ZOOM 65 5 c SET Copy job is canceled Finish Copy job is canceled 158225 Add Paper LUAA qp AUT Blink 2 PAPER LDEmpty AUTO FINISHING SORT ZOOM 65 FINISHING SORT ZOOM 100 EDIT Ww oCopy oCopy Blink Fig 5 2 2 Cassette 1 empty December 2002 TOSHIBA TEC 5 5 e STUDIO160 200 250 DISPLAY UNIT PAPER 4 0 qi AUTO FINISHING SORT 200 100 PAPER AUTO FINISHING SORT ZOOM 100 Wait adding toner _ Side cover PAPER LUAA a p AUTO open recovery FINISHING SORT 700 100 Adding toner Yes 4 f AUTO FINISHING SORT 2700 100 Adding toner After adding toner AUTO Oner OW FINISHING SORT ZOOM 100 Yes Ton
109. cember 2002 TOSHIBA TEC 2 25 e STUDIO160 200 250 OUTLINE OF THE MACHINE P Right cover 1 If an ADU MD 0101 and or SFB MY 1016 are attached to the copier detach it Detach lower right cover R See Fig 2 6 14 Remove 2 screws release 2 hooks and detach right cover Q Front frame cover F R 1 e STUDIO160 200 250 OUTLINE OF THE MACHINE If a Finisher MJ 1011 is attached to the copier detach the finisher plate and junction block If a JSP MJ 5001 or OCT MJ 5002 is attached to the copier detach it If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it If an ADU MD 0101 is attached to the copier open it Detach scanner cover See Fig 2 6 3 Detach control panel front cover See Fig 2 6 6 Detach control panel bottom cover See Fig 2 6 7 Open side cover Open exit cover Remove one screw release 4 hooks and detach front frame cover F and front frame cover R 2 26 Right cover Screw Fig 2 6 17 Exit cover 017 Front frame cover R Hook Front frame cover F Fig 2 6 19 im December 2002 TOSHIBA TEC R Exit cover 1 Ifa Finisher MJ 1011 is attached to the copier Stop ring detach the finisher plate and junction block Y 2 JSP MJ 5001 or OCT MJ 5002 is xa attached to the copier detach it 3 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is att
110. connected to the commercial power outlet regardless of the ON OFF state of the main switch Entrance 1 AOA L Noise 2 AC N filter Connector Scanner thermostat 08 08 01 December 2002 TOSHIBA TEC 7 17 e STUDIO160 200 250 SCANNER 7 9 Disassembly and Replacement A Scanner assembly 1 gt coo 11 12 13 14 15 16 17 18 19 20 e STUDIO160 200 250 SCANNER 7 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it If a STP KK 1600 is attached to the copier detach it Detach the manual pocket If a Finisher MJ 1011 is attached to the copier detach the finisher plate Detach rear cover See Fig 2 6 1 Detach top cover See Fig 2 6 2 Detach scanner cover See Fig 2 6 3 Detach top cover L See Fig 2 6 4 Detach top cover R See Fig 2 6 5 Detach control panel front cover See Fig 2 6 6 Detach control panel bottom cover See Fig 2 6 7 If a FAX kit GD 1061 is attached to the copier detach the FAX PWB and NCU PWB If a PCL kit GA 1031 is attached to the copier detach it NIC kit GF 1110 or I FAX GD 1070 is attached to the copier unplug the connectors for CN14 and CN17 If finisher MJ 1011 is attached to the copier detach the finisher PWA Remove MAIN PWA See Fig 2 6 25 and 2 6 26 Remove the one sc
111. ctrostatic latent image to an image vis ible to the human eye Sleeve roller 03008 Fig 3 2 7 The developing agent is fed to the surface of the photosensitive drum by the magnetic rollers and impressed on the rollers Toner in the developer agent attaches to areas on the photosensitive drum having a potential lower than the developer bias reverse developing method Magnet Carrier Always attracted on to the magnet Sleeve When the potential drum is higher than the developer bias Bias voltage When the potential 460V or 430V e ofthe photosensitive drum is lower than the developer bias 03009 Fig 3 2 8 Switching of developing bias polarity ofthe photosensitive 300V 200V 100V Intermediate tones White background Black solid 18 White background Image is not developed by bias potential Image is developed by 7 toner 2 2 voltage 03009 Fig 3 2 9 Fogging is reduced by switching the bias of negative voltage charged areas to positive polarity approx 150 About Developing Agent Toner and carrier are mixed The toner is charged to minus polarity and the carrier is charged to plus polarity by friction caused by stirring Toner Comprises plastic and Magnetite Carrier Ferrite e STUDIO160 200 250 COPYING PROCESS Magnetite 40 65 Ferrite 20 Resin Approx 60 um 35 60
112. cuit This circuit supplies AC power to the heater lamp in the fuser The heater lamp may be damaged if it is suddenly supplied with high voltage To prevent it the circuit supplies AC power only when the AC voltage is around OV AC power is supplied only when the HT1ON and HT2ON signals ASD AUD CND MJD models are LOW 15 4 Dump Heater Power Supply Circuit ASD AUD CND SAD models This circuit outputs the AC power input from the inlet directly to the FUS PWA thereby supplying power to the scanner dump heater AC power is always supplied to the dump heater regardless of the ON or OFF state of the main switch 15 5 Stapler Power Supply Circuit This circuit supplies AC power to an optionally connected stapler option AC power is supplied when the main switch is ON e STUDIO160 200 250 POWER SUPPLY UNIT 15 4 December 2002 TOSHIBA TEC 16 BOARD ASSEMBLY 16 1 16 1 E 16 1 16 2 PVVACE REY e dde EPOD RO dte aeos aO 16 2 16 3 PWACE PIE a ertt 16 3 16 4 PWA F PNL prt RI txt eee e ein pU de 16 4 16 9 PWAN IRS Sts Ait wear tote 16 4 16 6 PWV ARS a ee er esa ten dacs 16 5 16 7 PWA F FUS ASD AUD CND SAD models 16 6 16 BOARD ASSEMBLY 16 1 PWA F MAN 25 1 gt EP GW FR 16 lt cu Ho 2 10
113. d 18 02 f f Page memory board Memory cover Rear side 18 2 1 Interfaces 1 interface CPU on the main PC board handles the control data for controlling the page memory Board 2 Scanner interface Image data scanned by the digital copier are loaded to page memory from the external interface of the Scanner processor 3 Printer interface Image data in page memory are output to the laser controllers in the digital copier s printer by the external interface of the digital copier relay processor e STUDIO160 200 250 PAGE MEMORY BOARD 18 2 December 2002 TOSHIBA TEC 18 2 2 Schematic The figure below shows a schematic diagram of the page memory board gt Scanner 4 Printer 4 __ memory controller Control ASIC control Address control Data control Rotation merger control Compression decompression Page memory 4 Memory SD RAM Standard A 32MB Extension slot 2 v Expanded memory board Max 128MB 1 Page memory Page Memory Board Schematic 32 MB of memory DRAM are mounted on the main board as standard The Option page memory board specification DRAM Model HM5264405F A60 or equivalent product Access time 100 nS Memory configuration 4194304 x 4 bits x 4 banks Address Row address 0 1 Column address 9 Bank select address A12 A13 Refr
114. drives the exit drive gear 1 When the ADU is attached the gear is always driven by the ADU motor upper to slide the gear Exit drive gear 6 The driving gear train from the main motor drives exit drive gear 6 This gear transmits the drive from the ADU to the exit roller while the ADU is attached When the ADU is attached the gear cuts off the drive from the main motor and starts to transmit the ADU drive Therefore the exit roller is always driven by the ADU even in one side printing when the ADU is attached Exit drive gear 7 The driving gear train from the main motor drives exit drive gear 7 When connected to this gear the OCT or JSP is driven Finisher e STUDIO200 250 series e STUDIO160 200 250 DRIVE SYSTEM 10 2 December 2002 TOSHIBA TEC 10 2 2 Part B Part B is comprised of the main dive gear assembly and the main motor and drives the drum and the developer and transmits drive to Parts A and C Main drive gear assembly Main motor Drum drive gear Coupling Developer drive pulley Coupling Timing belt 176 10 2 2 PPS2 Fig 10 2 2 Drum Drive The driving gear train from the main motor drives the drum drive shaft and coupling The coupling part is fit to the drum thereby driving the drum Developer Drive The main motor transmits the drive to the developer drive pulley via tim ing belt 176 causing the developer connected with the c
115. e areas e STUDIO160 200 250 FUSER UNIT EXIT UNIT 14 8 December 2002 TOSHIBA TEC 14 6 2 Temperature detection by the thermistor The detection circuits for heater thermistors 1 and 2 are equal to each other Here heater thermistor 1 is described 45V 5V Heater thermistor 1 R342 1 23 1 34 166 TH ADCDO gt K gt AD System CPU converter control R337 GA SG 14 06 02 Fig 14 6 2 The input voltage is obtained by dividing the 5V among R342 Heater thermistor 1 and R337 The surface temperature of the heat roller varies The resistance of the heater thermistor 1 changes The input voltage changes The input voltage is converted to digital data by the A D converter and output to the register of the system control GA The CPU reads this value and detects a change in the data to judge if the heat roller temperature is normal or abnormal December 2002 TOSHIBA TEC 14 9 e STUDIO160 200 250 FUSER UNIT EXIT UNIT 14 7 Disassembly and Replacement A Fuser unit 1 Open ADU MD 0101 if it is attached 2 Detach upper right cover R See Fig 2 6 14 3 Detach 2 connectors remove 2 screws and remove fuser unit Note The fuser unit is to be attached by follow ing the procedures described below 1 Be sure to fit the bosses of the fuser unit with the holes of the copier side prop erly See Fig 14 7 1 2 Be sure to pass the heater thermistor
116. e SFB feed sensor 2 ADU When performing duplex copying the one side printed paper passes through the ADU At this time if the sensors 2 pcs in the ADU do not turn ON for a fixed time ADU miss feed will be assumed and the message Misfeed in duplexer will be displayed Reset procedure Open the ADU and remove the jammed paper to turn OFF the ADU sen sors then close the cover PFU With the PFU installed if paper feed from the PFU is selected the exit sensor detects the pres ence or absence of paper Press the START button to turn ON the PFU clutch motor to pick up the paper Atthis time if the exit sensor ofthe copier does not turn ON for a fixed time PFU miss feed will be assumed and the message Misfeed in copier will be displayed Reset procedure Open the PFU cover or copier side cover and remove the jammed paper December 2002 TOSHIBA TEC 4 7 e STUDIO160 200 250 COPIER OPERATION PFP With the PFP installed if paper feed from the PFP is selected the PFP paper feed sensor Upper Lower sensor detects the presence or absence of paper The one in parentheses applies when the cassette module is installed Press the START button to turn ON the PFP clutch motor to pick up the paper At this time if the PFP paper feed sensor Upper Lower sensor does not turn ON for a fixed time PFP miss feed will be assumed and the message Misfeed in copier will be displayed Reset procedure Open the PFP cover o
117. e configuration of the optical system and the purpose of its components 1 Original glass The original glass is for placing the original The original is illuminated by light from the exposure lamp passing through the original glass 2 Carriage 1 Carriage 1 is driven by the scanning motor to scan the original and is made up of the following parts Exposure lamp Reflector Mirror 1 Carriage 1 08 02 01 a Exposure lamp The exposure lamp emits the light for illuminating the original Xenon lamp b Reflector The reflector is for efficiently directing light from the exposure lamp onto the surface of the original c Mirror 1 Mirror 1 is for guiding light reflected from the original to mirror 2 Mirror 2 is described later on Original 24 22 Reflector uis Original glass 1 Exposure lamp Mirror 1 e STUDIO160 200 250 SCANNER 7 2 December 2002 TOSHIBA TEC 08 02 02 3 Carriage 2 Carriage 2 leads light reflected from mirror 1 to the lens by mirrors 2 and 3 and is made up the following Carriage 2 is driven by a scanning motor in the same way as carriage 1 and scans at a speed half that of carriage 1 The distance that the carriage scans is half that of carriage 1 Mirror 2 Mirror 3 Carriage 2 08 02 03 4 Lens gt CCD Light reflected from mirror 3 is projected to the CCD The CCD is located at the focal point of a fixed lens December 2002 TOSHIBA TEC 7 3 e
118. e the scanner thermostat M Damp heater SAD ASD AUD CND models 1 e STUDIO160 200 250 SCANNER If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Remove original glass See Fig 7 8 7 Move carriage 1 to around the center See Fig 7 8 22 Peel off the sheet e STUDIO160 series Remove the screw release the hook and de tach the damp heater plate e STUDIO200 250 series Connector 065 11 Scanner thermostat Fig 7 8 37 065 12 e STUDIO160 series Fig 7 8 38 e STUDIO200 250 series Damp heater plate Screw _ Hook Fig 7 8 39 0659 7 30 December 2002 TOSHIBA TEC 6 Release 2 clamps and detach the connector 7 Remove 2 screws and remove damp heater 065 8 Fig 7 8 40 December 2002 TOSHIBA TEC 7 31 e STUDIO160 200 250 SCANNER 8 8 1 8 2 8 3 8 4 PRINTING General Description 8 1 MC 8 2 Dio MED T 8 5 Disassembly and Replacement sess 8 6 8 PRINTING 8 1 General Description The laser scanner unit reflects the laser beam by the polygonal mirror motor and irradiates it in the scanning direction of the drum through the f0 correction lens As the drum rotates an electronic image is formed on the drum The laser scanner unit consists of the following Laser unit which outputs a laser beam Polyg
119. ear 2 Developer drive gear 3 Magnetic roller Developer drive Developer drive Agitator drive drive gear gear 4 gear 5 gear Magnetic roller Agitator Developer drive gear 6 Developer drive gear 7 Developer drive gear 8 Auger drive gear Auger December 2002 TOSHIBA TEC 12 3 e STUDIO160 200 250 DEVELOPER SECTION 3 Toner cartridge auger Toner supply motor Toner supply coupling Toner supply gear Toner cartridge Toner cartridge auger E 12 03 03 The toner cartridge auger turns as the driving force of the toner supply motor is transmitted to them through each gear Toner supply motor Toner supply gear Toner supply coupling Toner cartridge auger e STUDIO160 200 250 DEVELOPER SECTION 12 4 December 2002 TOSHIBA TEC 12 4 Function of Each Part 1 Magnetic roller Magnetic roller is made of aluminum with magnets positioned inside it By using the magnetic force the developer material is attracted because the carrier is made of iron powder forming magnetic lines of force shaped like a brush Further magnets are secured and only the sleeves around mag netic roller rotate Through this rotation the magnetic brush of the magnetic roller sweeps the surface of the photosensitive drum enabling development 2 Doctor The doctor makes the thickness of the toner layer on the magnetic roller surface as specified to allow toner to pass betwee
120. ecomes Drum face uneven at charging for the next copy iss The copy image is doubled the previous im Fig 3 2 18 age remains Method Discharge LED array illuminates the entire drum surface The drum becomes a conductor Since the drum is grounded the electric charge escapes The drum is ready for the next copy e STUDIO160 200 250 COPYING PROCESS 3 8 December 2002 TOSHIBA TEC 3 3 List of Copying Process Conditions Process e STUDIO160 e STUDIO200 250 1 Drum 930 1 Sensitivity Highly sensitized high copy volume drum 2 Surface potential 637 V DC 674 V DC 2 Main charger Scolotron system constant current Variable grid output constant voltage 3 Exposure 1 Light control Automatic exposure and manual 7 step LCD setting 2 Light source Laser scan adjustment not needed 4 Development 1 Developer roller With magnetic roller inside 2 Auto toner Toner end sensor 3 Toner replenishment Toner cartridge system Toner end sensor 1 2 3 4 Toner empty detection 5 6 7 5 Toner T 1600 T 2500 6 Developing material D 1600 7 Developer bias 430 V DC output adjustable 460 V DC output adjustable at printing at printing 150 V DC fix others 150 V DC fix others 5 Transfer bias Adjustment not needed 6 Transfer Adjustable output constant cur
121. eds include the first copy time They are available when the copy modes in the above table are selected and 10 LT size originals are set in the automatic document feeder Copy paper Cassette Duplexing Bypass copy Remarks Size A3 A5 R FOLIO A3 A5 R FOLIO LD ST R COM LD ST R COM Weight 64 80 g m Continuous copy 64 80 g m 17 21 Ibs 17 21 Ibs Single copy 80 163 g m 21 43 Ibs Special paper Recommended OHP film Thick paper e STUDIO160 200 250 SPECIFICATIONS 1 2 December 2002 TOSHIBA TEC First copy time Warming up time Multiple copying Reproduction ratio Resolution Gradation Paper feeding Capacity of originals of automatic document feeder Toner supplying Density control December 2002 TOSHIBA TEC e STUDIO160 series Less than 7 9 seconds A4 LT the Upper cassette 10095 original placed manually e STUDIO200 series Less than 7 0 seconds A4 LT the Upper cassette 100 original placed manually e STUDIO250 series Less than 7 0 seconds A4 LT the Upper cassette 100 original placed manually e STUDIO160 series Less than 60 seconds e STUDIO200 series Less than 75 seconds e STUDIO250 series Less than 75 seconds Up to 999 copies entry by numeric keys Actual ratio 100 Zooming 50
122. ee Fig 14 7 10 4 Remove the heat roller separator See Fig 14 7 8 5 Release the heater cover assembly See Figs 14 7 14 6 Remove one screw and release the clamp 7 Remove the heater lamp holder See Fig 14 7 19 and 14 7 20 8 Remove the heater lamp CAUTION Never touch the heater lamp with your bare hands Note For the ASD AUD CND MJD models the 400W heater lamp should be attached to the upper side e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 14 16 e STUDIO160 series Screw 093 2 Fig 14 7 21 e STUDIO200 250 series Screw 093 3 Fig 14 7 22 NAD SAD models Heater lamp Heater lamp harness Black Fuser thermostat harness White Fig 14 7 23 ASD AUD CND MJD models Heater lamp Heater lamp harness White Heater lamp harness Black Fuser thermostat harness White Fig 14 7 24 pun December 2002 TOSHIBA TEC H HR drive gear 3 heat roller heat roller bushing press roller press roller bushing cleaning roller cleaning roller bushing When disassembling the fuser assembly pay special attention not to damage the heat roller press roller and cleaning roller e STUDIO160 series 1 Remove fuser unit See Fig 14 7 1 Remove heater thermistor See Fig 14 7 2 Remove the housing assembly See Fig 14 7 10 4 Remove the heat roller separator HR drive gear
123. el 1 The HVPS generates constant voltage and delivers it to the paper guide plate pinch roller High voltage to the paper guide plate pinch roller is delivered or cut off synchronizing with the timing of the SPON signal separation charger control signal When the SPON signal is at Low level the voltage is delivered e STUDIO160 200 250 DRUM RELATED SECTION 11 6 December 2002 TOSHIBA TEC 11 6 Disassembly and Replacement A Charger unit 1 Ifan ADU MD 0101 is attached to the copier open it 2 Openside cover See Fig 10 3 2 3 Release 3 hooks and detach the charger unit Note To attach the charger unit mount 2 springs to each guide firmly B Guide roller collar guide roller gear guide roller bush drum collar 1 ADU MD 0101 is attached to the copier open it Open side cover See Fig 10 3 2 Detach the charger unit Fig 11 6 1 Release 2 hooks and detach the guide roller assembly 5 Remove 2 guide roller bushes one guide roller gear 2 guide roller collars and 2 drum Note Afterthe guide roller assembly is attached the guide roller should rotate smoothly C Separation charger wire transfer charger wire 1 ADU MD 0101 is attached to the copier open it 2 Openside cover See Fig 10 3 2 3 Detach the charger unit Fig 11 6 1 4 Peel off the front and rear protection sheets Note When placing the front and rear protection sheets on the c
124. er 7 Detach all the connectors remove 4 screws then remove high voltage power supply Screw ZR High voltage Screw power supply Fig 2 6 30 026 2 E LVPS 1 Ifa Finisher MJ 1011 is attached to the copier detach the finisher plate and junction block If a JSP MJ 5001 or OCT MJ 5002 is attached to the copier detach it Detach the toner cartridge Detach ozone cover See Fig 2 6 9 Detach paper tray cover See Fig 2 6 10 Loosen 5 screws 027 1 Remove one screw and detach LVPS cover 9 Detach all the connectors and release one clamps 9 Remove 3 screws and remove LVPS Screw December 2002 TOSHIBA TEC 2 33 e STUDIO160 200 250 OUTLINE OF THE MACHINE F FUS PWA SAD ASD AUD CND models SAD ASD AUD CND models 1 Ifa STP KK 1600 is attached to the copier disconnect the power cable Detach the manual pocket Detach rear cover See Fig 2 6 1 Remove one screw and detach FUS PWA cover SAD ASD AUD CND models Detach all the connectors from FUS PWA Release 4 locking supports and remove FUS PWA FUS PWA 028 2 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 34 December 2002 TOSHIBA TEC 3 3 1 3 2 3 3 3 4 COPYING PROCESS 3 1 PTOGBSS ERG dan 3 1
125. er KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it 2 Remove 2 screws and remove original glass stay 3 Remove 4 screws and remove original glass 4 Remove the double sided tape and remove the ADF glass Note For installing the ADF glass and original glass and adjusting the tilt refer to the Ser vice Handbook See Chapter 1 8 e STUDIO160 200 250 SCANNER 7 20 4 Scanner assembly Fig 7 8 6 Original glass stay Screw Original glass Su Fig 7 8 8 December 2002 TOSHIBA TEC C Scanner motor 1 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it 2 STP KK 1600 is attached to the copier detach it 3 Detach the manual pocket If a Finisher MJ 1011 is attached to the copier detach the finisher plate 5 Remove scanner assembly See Fig 7 8 1 to 7 8 6 Remove original glass See Fig 7 8 7 Detach one connector and detach the motor harness 8 Remove one screw and remove the ADF con nector plate 9 Release the clamp and detach the harness 10 Remove 4 screws and remove scanner motor assembly while releasing timing belt 157 11 Remove 2 screws and remove Scanner motor while releasing scanner timing belt 142 Notes 1 For adjusting the timing belt when mounting the scanner motor refer to the Service Handbook See Chapter 1 8 2 Do not mix the screws removed December 20
126. er detach it Detach rear cover See Fig 2 6 1 Detach ozone cover See Fig 2 6 9 10 Remove high voltage power supply See Fig 2 6 29 and 2 6 30 11 Release the spring Detach paper tray cover See Fig 2 6 10 Remove PWA See Fig 2 6 28 Detach the toner cartridge and the process unit 12 Remove 2 screws release the timing belt 309 and remove cassette feed gear 2 assembly 13 If an ADU MD 0101 is attached to the copier open it 14 Open side cover 15 Remove 2 screws e STUDIO160 200 250 DRIVE SYSTEM Spring Cassette feed gear 2 assembly lt A Screw Timing belt 309 Fig 10 3 1 1 2 WM lt lt Side cover 030 1 6 December 2002 TOSHIBA TEC 16 Detach 2 connectors from the PWA 17 Release the harness from inside the copier re move 7 screws and remove main drive gear assembly Note When the main drive gear assembly is at tached adjust it by referring to the Service Handbook See chapter 1 9 Connector Harness 031 1 Fig 10 3 4 B Main moter e STUDIO160 series 1 Ifa STP KK 1600 is attached to the copier Miming 1 6 disconnect the power cable Detach the manual pocket Detach the toner cartridge and the process unit Detach rear cover See Fig 2 6 1 Detach 2 connectors form t
127. er OFF START 5 RAM Clear with the 1 3 and keys 1 3 Warming up OFF 6 Download the scanner PWA firmware if necessary after confirming the version of it 7 Settings for the country code or region code Without Fax kit Setting the country or region code for the With Fax kit See the 1 2 6 of the Service Handbook GD 1061 CND 0 2 SET _ A amp 4 6 Power 8 Settings for the date and time For details see chapter 5 of the Manual PROGRAM 0 3 INITIAL SETUP EL 0 1 DATE amp TIME DD MM YYYY DAY HH MM 15 01 2003 WED 10 10PM 9 Writing in memory entering the drum counter value DRUM COUNTER long size counter value A3 LD and short size counter value A4 LT For the setting value refer to the DRUM UNIT LIST printed before replacing the MAIN PWA When the DRUM UNIT LIST is not printed perform the following setting Drum counter value Long size counter value Short size counter value Find a remainder by dividing the total counter value 08 351 by the proces
128. er is low PAPER 2 4 AUTO FINISHING SORT 200 100 When 100 pages printed toner end is determined empty 1 Itoner cartridge vi Toner empty iClose front cover 2 3 v 3 3 v Fig 5 2 3 Toner empty e STUDIO160 200 250 DISPLAY UNIT 5 6 December 2002 TOSHIBA TEC December 2002 TOSHIBA TEC Misfeed in bypass iRemove any misfeed Then set Fig 5 2 4 Misfeed in bypass SFB Misfeed in copier w Open side cover lof the copier 1 4 v Misfeed in copier _ Release light blue A lfuser latches 2 4 v Misfeed in copier iRemove any misfeed from copier 3 4 Misfeed in copier side cover A lof the copier 4 4 Fig 5 2 5 Misfeed in copier e STUDIO160 200 250 DISPLAY UNIT e STUDIO160 200 250 DISPLAY UNIT Misfeed in copier E E a side cover lof the copier iRemove any misfeed A lpaper from copier Misfeed in copier wiClose side cover lof the copier Misfeed in copier lower s side cover Misfeed in copier iRemove misfeed from copier Misfeed in copier lower cover Misfeed in copier Open side cover Misfeed in copier iRemove any misfeed Ipaper from copier Misfeed in copier iClose side cover lof Large
129. eration 9 6 Function OF Each Part ioo e eit 9 7 Tray up Motor Drive Circuit acne tht 9 9 Disassembly and Replacement lt 9 10 9 PAPER FEEDING SYSTEM 9 1 General Description The paper feeding section feeds the paper from the paper cassette to the transfer section Driving of each of the paper feed and transport rollers is controlled by turning ON and OFF the clutches Each sensor detects the transport state of the paper 9 2 Construction Pinch roller Registration roller Feed sensor Pickup roller Pickup feed roller Separation roller Pickup sensor Paper tray Paper empty sensor Tray up assembly 09 02 01 The paper feeding system section consists of the following parts Papertray Tray up assembly Pickup feed roller Pickup roller Paperempty sensor Pickup sensor Separation roller Feedsensor Registration roller e Pinch roller December 2002 TOSHIBA TEC 9 1 e STUDIO160 200 250 PAPER FEEDING SYSTEM 9 3 Drive Description 9 3 1 Pickup feed roller feed roller and registration roller Main motor Main drive gear 2 Main drive gear 3 Main drive gear 4 Registration roller clutch Registration drive gear Main drive gear 6 Transmission gear 3 Pickup clu
130. escribes an example where eight single sided A4 size originals are output onto A4 sized paper using the magazine sorting function 8 originals transported by ADF Original fed to exposure position by ADF Original scanned by 7195 reduction Stored in page memory Image data compression Page 2 and 7 are decompressed and stored as 1 page Printed copy A rear side Page 1 and 8 are decompressed and stored as 1 page Printed on copy front side stacked to ADU A Page 3 and 6 are decompressed and stored as 1 page Printed on copy front side stacked to ADU B Page 4 and 5 are decompressed and stored as 1 page gt Printed B rear side 8 single sided originals Printed state Reversal of printed sate 4 15 1 8 d 9 3 6 2 7 1 8 December 2002 TOSHIBA TEC 18 9 e STUDIO160 200 250 PAGE MEMORY BOARD 18 3 2 Editing 1 2 in 1 and 4 in 1 2 in 1 Two originals are printed out onto single side of a single sheet of paper 4 in 1 For originals are printed out onto single side of a single sheet of paper The orientation of the printed copy can be selected for each of these modes as Follows 2in 1 copy Using the ADF Output of the ADF m Am Wan searing OM Normal 180 deg rotation 4 1 copy Using the ADF Output of the ADF ensure 1 2 emm
131. eshment cy 4096 cycle 64mS The page memory board is provided with two slots for mounting the main PC Board Adding on this memory board increases the memory to 128 MB December 2002 TOSHIBA TEC e STUDIO160 200 250 PAGE MEMORY BOARD 2 Page memory control ASIC 24 Address control This ASIC forms the address on the page memory when the following condition are met When digital image data are written to the page memory When digital image data in the page memory are read Data control This ASIC executes the following operations Controls the images bus on the page memory board Receives and waits for image data transfer control between the compression decompression LSI and the page memory Merges image data in the page memory with image data scanned by the digital copier and writes image data into the page memory Rotation merge control This ASIC executes the following operations Receives and wait for digital image data transfer control between the digital copier and the page memory PC board on the scanner and printer interface Swaps data in the page memory during rotation processing 3 Compression decompression LSI PM 22 This LSI executes the following operations Compressions image data on the page memory and forms coded data Decompresses the coding data compressed the page memory to restore the image data e STUDIO160 200 250 PAGE MEMORY BOARD 18 4 December 20
132. film Glass valve Aluminum tape electrode Fluorescer 08 05 03 Adhesive agent Xenon gas Behavior inside the lamp The electron inside the pipe is led to the electric field by applying voltage to the pair of the external electrodes and discharge is started Electrons then flow and clash with the Xenon atom inside the pipe to excite them and generate the ultraviolet ray This ultraviolet ray converts the fluorescer into the visible light 08 05 04 1 Electrode 2 Electron 3 Xenon atom 4 Ultraviolet ray 5 Fluorescer 6 Visible light irradiated from the opening to outside the pipe 7 Opening 8 Harness December 2002 TOSHIBA TEC 7 9 e STUDIO160 200 250 SCANNER 7 5 2 Exposure Lamp Control Circuit This circuit is made up of the motor control IC ICA and the transformer capacitor and other peripheral elements on the Inverter PWA and controls the lighting of the exposure lamp The circuit configurations are different on the e STUDIO160 series and e STUDIO200 250 series e STUDIO160 series 1 The motor control IC ICA turns the LAMP signal to the HIGH level 2 The transistor Q3 turns on and the LAMP signal turns to the GND level 3 The transistor Q3 on the Inverter PWA turns on to apply 24V to the Inverter PWA 4 The transistors Q1 Q2 are biased by the starting resistors R1 R2 At this time either of Q1 and Q2 turns on due to the transistor characteristics The following explains a case where
133. following describes an example where alternation and sorting have been specified when making copies using the ADF Continuous copy quantity conditions met Original to be fed by ADF present YES Original fed to exposure position by ADF Stored image data decompressed Even numbered copies only rotated 1 sheet printed 1 sheet printed Final original of nth copy printed 1st copy 2nd copy 3rd copy December 2002 TOSHIBA TEC 18 7 e STUDIO160 200 250 PAGE MEMORY BOARD 3 Magazine sorting Sorts original in such a way a weekly magazine or newspaper can be made The following describes an example of execution process using the magazine sorting function Execution process Magazine sorting Input process Input Compression lt gt lt gt Image memory module IM Compression process Decompression Compression lt gt lt gt Image Memor Image memor DE y DE memor module eM module Pon module IM PM IM L 2in 1 4in 1 bind Decompression process E Decompression Output bi gt lt gt Image Memor y ix Poppo module L Rotation _ IM Image Memory e STUDIO160 200 250 PAGE MEMORY BOARD 18 8 December 2002 TOSHIBA TEC Example The following d
134. harger unit they do not ex tend from the charger unit December 2002 TOSHIBA TEC 11 6 1 Fig 11 6 1 Guide roller bush Guide roller gear Guide roller collar Drum collar Guide roller Guide roller collar Drum coller Guide roller bush gt Charger unit 11 6 2 Rear protection sheet QR Front protection sheet 11 6 3 Fig 11 6 3 e STUDIO160 200 250 DRUM RELATED SECTION 5 Release 9 hooks and detach the separation Guide roller Hook charger guide Separation charger guide Charger unit 2 Charger unit 11 6 4 6 Detach 2 dampers 11 6 5 7 Release the spring and detach the separation and transfer charger wires Transfer Note Be careful handling the wires charger wire Separation charger wire e STUDIO160 200 250 DRUM RELATED SECTION 11 8 December 2002 TOSHIBA TEC 12 DEVELOPER SECTION 12 1 12 1 General Description sien cent roba take da 12 1 1252 COMSIMUICIION COO Doni PRU cibo Dur EUR OPE PELO NUR 12 1 123 Drive Descriptio st de tust 12 2 12 4 OF Each 12 5 12 5 Tener Control GIEGUIE 12 6 RE 12 6 12 5 2 Toner empty detection 2 22222
135. he PWA og F Remove 3 screws and remove main motor Notes 1 After attaching the main motor rotate the main motor to make sure that the cou pling of the process unit rotates 2 Seeing from the gap of the main drive gear cover assembly confirm that the timing belt is securely installed Connector Fig 10 3 5 one December 2002 TOSHIBA TEC 10 7 e STUDIO160 200 250 DRIVE SYSTEM e STUDIO200 250 series 1 If STP KK 1600 is attached to the copier dis xs ed shaft connect the power cable Detach the manual pocket Detach the toner cartridge and the process unit Detach rear cover See Fig 2 6 1 Remove PC I F PWA See Fig 2 6 28 Remove 3 screws to remove the drum drive shaft holder 9 401 031 3 Fig 10 3 6 7 Remove 2 screws Remove the main motor by sliding it downward Notes 1 After attaching the main motor rotate the main motor to make sure that the cou pling of the process unit rotates 2 Seeing from the gap of the main drive gear cover assembly confirm that the tim ing belt is securely installed 031 4 Connector Fig 10 3 7 C PU guide assembly 1 Ifa KK 1600 is attached to the copier disconnect the power cable Harness Detach the manual pocket Open ADU MD 0101 if it is attached If a Finisher MJ 1011 is attached to the copier detach the finisher plate and junction block 5
136. he separation roller in the direction of the arrow cause a slip in the arbor R torque limiter However if multiple sheet feeding occurs since the Pickup feed roller friction between the sheets is small the lower sheet is forcibly separated from the upper sheet and is sent back in the direction of the lt 200 by the separation roller The upper sheet is fed in the di rection of the arrow mmi by the feed roller Separation roller 09 04 04 Examples If only sheet of paper arrive at the separation roller the force of pickup feed roller which is greater than that of the separation roller causes the sepa ration roller to rotate in the direction sending the paper If two sheets of the paper 1 and 2 arrive at the separation roller the force of the respective rollers is greater than the friction between sheets of paper and the top sheet 1 is sent in the direction by the feed roller while the bottom sheet 2 is sent in the 900 direction by the separa tion roller December 2002 TOSHIBA TEC 9 5 e STUDIO160 200 250 PAPER FEEDING SYSTEM 9 4 4 Cassette feeding operation A From power on to the ready state 1 When the power is turned ON the tray up motor of the tray up assembly turns ON to lift the paper tray of the paper cassette 2 When the paper tray pushes up the pickup roller to turn ON L H the pickup sensor the tray up motor turn
137. he separation roller should not to be touched by the separation spring C Tray up assembly 1 Ifa STP KK 1600 is attached to the copier disconnect the power cable Detach the manual pocket Detach rear cover See Fig 2 6 1 Remove 2 screws and release 2 clamps Detach the relay connector and remove tray up assembly e STUDIO160 200 250 PAPER FEEDING SYSTEM 9 10 Separation Spring Pd Separation Hook holder assembly Fig 9 7 1 Separation roller spring cover Shaft 6 3 s 4 Arbor F A IY lt p 2 Xu Spring 071 Fig 9 7 2 Relay connector Tray up assembly Screw 9 7 3 2002 D Pickup assembly 1 If an ADU MD 0101 and or SFB MY 1016 are attached to the copier detach it Remove paper cassette See Fig 2 6 11 Remove upper right cover R and lower right cover R See Fig 2 6 14 Remove separation holder assembly See Fig 9 7 1 Remove 2 screws and remove pickup assem bly E Pickup feed roller 1 If an ADU MD 0101 and or SFB MY 1016 are attached to the copier detach it Remove paper cassette See Fig 2 6 11 Remove upper right cover R and lower right cover R See Fig 2 6 14 Remove separation holder assembly See Fig 9 7 1 Remove pickup assembly See Fig 9 7 4 Remove stop ring and remove pickup feed roller F Pickup r
138. holding the paper tray cover screw See Fig 2 6 10 3 Detach left cover See Fig 2 6 12 Remove one screw holding the top cover L 9 5 9 Remove 3 screws release hook detach left cover R 012 Fig 2 6 13 e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 24 December 2002 TOSHIBA TEC N Upper right cover R Lower right cover R Incase that an ADU and SFB are not attached or a SFB is attached 1 Open side cover 2 Remove2 screws and detach upper right cover R 3 MY 1016 is attached to the copier detach it 4 Remove2 screws and detach lower right cover R Side cover Lower right cover R Fig 2 6 14 0133 case that an ADU is attached ADU and SFB are attached 1 Openan ADU MD 0101 and release the wire 2 Open side cover 3 Remove 2 screws and detach upper right cover R 4 Detach an ADU MD 0101 from the copier 5 MY 1016 is attached to the copier detach it 6 Remove2 screws and detach lower right cover R O Side cover assembly 1 Open ADU MD 0101 if it is attached 2 Detach upper right cover R See Fig 2 6 14 3 Detach one connector and release the clamp Connector Side cover Fig 2 6 15 4 Remove 2 screws securing stopper guide pin then detach paper guide B spring and side cover assembly Stopper Side cover assembly Screw Fig 2 6 16 ots De
139. iage 1 to around the center Note To move carriage 1 push both ends of car riage 1 as Fig 7 8 22 or if you cannot reach there turn scanner drive shaft to move the carriage 13 Remove one screw and detach the ground wire 14 Remove 2 screws cut the cable tie and de Cable tie tach the exposure lamp G Carriage 1 mirror 1 1 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it 2 STP KK 1600 is attached to the copier detach it 3 Detach the manual pocket If a Finisher MJ 1011 is attached to the copier detach the finisher plate Detach top cover See Fig 2 6 2 Fig 7 8 24 056 3 Detach scanner cover See Fig 2 6 3 December 2002 TOSHIBA TEC 7 25 e STUDIO160 200 250 SCANNER Notes 1 Clean the surface of mirror 1 if dirty Detach top cover L See Fig 2 6 4 Detach top cover R See Fig 2 6 5 Release the lamp cable See Fig 7 8 19 to 7 8 22 Loosen 2 screws release wire and remove car riage 1 Remove spring plate securing mirror 1 and re move mirror 1 2 For mounting Carriage 1 and adjusting the distortion refer to the Service Hand book See Chapter 1 8 CAUTION Never turn the angle adjusting screw of mirror Be careful that holding or pushing the lamp part can damage the lamp H Carriage 2 mirror 2 mirror 3 1 m If an Original Cover 1600 ADF MR 2012 or
140. ias into the register of the system control GA IC34 1 The system control GA converts the data loaded into the register to a DI signal setting signal in serial format and sends it to the D A converter IC 17 at the timing of the CLK signal transfer clock signal and the LD signal load data signal The D A converter converts the input data to DVVR signal development bias reference voltage signal in analog form and sends it to the HVPS L The HVPS generates high voltage based on the voltage value of the DVVR signal and delivers it to the magnetic roller There are the following two cases where high voltage is delivered to the magnetic roller the delivery of positive voltage during initial operation and the delivery of negative voltage during printing operation Only during the delivery of positive voltage the development bias voltage is delivered or cut off synchro nizing with the timing of the SPON signal separation charger control signal When the SPON signal is at Low level the positive voltage is delivered Transfer Transfer charger The CPU 1 66 loads reference voltage data for transfer bias into the register of the system control GA IC34 4 The system control GA converts the data loaded into the register to a DI signal ADC setting signal in serial format and sends it to the D A converter IC 17 at the timing of the CLK signal transfer clock signal and the LD signal load data signal 4
141. inisher Misfeed in bypass An error which has detected that the machine cannot be operated In this case turn the power OFF Display Call for service 4 5 e STUDIO160 200 250 COPIER OPERATION 4 3 2 Explanation of faults 1 Add paper This error occurs when the sensor in the cassette tray detects the absence of paper Cause of occurrence No paper is loaded into the cassette or the cassette is not correctly in stalled in the copier This error message is also displayed when the cassette tray is not lifted due to a fault of the lift up motor etc Reset procedure The error state can be reset by supplying paper or installing the cassette again A 2 Toner is low This error occurs when the toner sensor detects the insufficiency of toner Reset procedure Supply toner B 1 Misfeed in copier This error message is displayed when a paper jam has occurred in the transport path There are the following six kinds of jams including those for the installation of options 7 FEED JAM When paper is fed from the cassette of the copier the sensors feed sensor and exit sensor turn ON and OFF in order At this time if the feed sensor or exit sensor does not turn ON for a fixed time a FEED JAM will be assumed Ifthe time taken from the moment when the registration clutch turns ON to the moment when the exit sensor turns ON exceeds 3 02 seconds the message Misfeed in copier will be dis played If the time taken f
142. inutes The time taken before such switching can be programmable 3 min to 240 min The Sleep mode is deactivated when you press the START key or an effective key under READY on the display or open and close the platen while in the Sleep mode The Sleep mode will not switch to the Low Power mode 3 Super Power Save The Super Power Save mode function turns the CPU OFF to save power consumption This mode is switched to when you press the SUPER ENERGY SAVER key or when the Sleep mode timer stops When the Super Power Save mode is activated the power of the main CPU turns OFF so that each device is not controlled and the panel is not displayed on either The LED of the SUPER ENERGY SAVER key only is lit The standard mode is restored from the Super Power Save mode when you press the SUPER ENERGY SAVER key again open and close the platen or open and close the document feeder ADF or or loading a document into the document feeder ADF or installed At this time the power of the main CPU is turned on so that the operation begins with the same processing as when the power is turned ON e STUDIO160 200 250 COPIER OPERATION 4 2 December 2002 TOSHIBA TEC 4 Weekly Timer The Weekly Timer function controls the Sleep mode for each day of the week You can program this function on the panel and determine the ON OFF time in minutes for each day of the week from Sunday through Saturday one week The Weekly Timer function itself ca
143. ion e tet ai ee da e e ER 4 5 4 3 1 Classification of faults 4 5 4 3 2 Explanation 4 6 Fow CES RERO ERES 4 9 AAA ON TITIO uoc mc season e 4 9 442 Copying at platen Simplex gt 4 11 4 4 3 Copying using cassette 1 2 000 4 12 4 COPIER OPERATION 4 1 Operation Outline Operation during warm up and standby Copier Operation Automatic feed copying using START key Copying Operation Bypass feed copying nterrupt Copying 4 2 Description of Operation 4 2 1 Warming up 1 Initialization Turn on the power switch The message Please wait appears on the display The PS fan motor operates and the process unit fan motor operates at low speed Initialization of optical unit The carriage moves to the home position and then stops The peak position is detected as the carriage moves The Exposure lamp lights and the peak is detected Shading sheet is detected The Exposure lamp goes off Initialization of paper feed mechanism Each tray is lifted It will not move if it has already been lifted 2 When the temperature of the heat roller has been sufficiently stabilized the copy quantity shows 1 and the word READY appears December 2002 TOSHIBA
144. ives the drum developer exit roller heat roller registration roller cassette feed roller and drive transmission gears of options They are driven by the main motor Driven by ADU Exit drive gear 1 Exit roller ADU gear lt gt OCT or JSP gear MN Exit drive gear 5 Exit drive gear 6 9 Part A HR drive gear 2 Heat roller Drum drive gear S zm N Coupling motor Developer drive pulley Bs Coupling lt Registration roller Clutch N lt lt Timing 176 Timing belt 309 Cassette feed roller Pick up clutch Cassette feed gear 8 Part C SFB gear Cassette feed gear 6 2nd feed roller Clutch PFU gear 10 1 1 PPS2 Fig 10 1 1 Drive system Rear side view December 2002 TOSHIBA TEC 10 1 e STUDIO160 200 250 DRIVE SYSTEM 10 2 Description of Operations 10 2 1 Part A Part A drives the heat roller feeds ejects paper and transmits drive to the options OCT JSP and Finisher Driven by ADU Exit drive gear 1 Exit roller ADU gear OCT or JSP gear 4 e LEM Finisher e STUDIO200 250 st series Exit drive gear 5 Exit drive gear 6 Main motor 10 2 1 PPS2 Fig 10 2 1 e Heat roller drive The driving gear train from the main motor drives the HR drive gear 2 Exit roller The driving gear train from the main motor
145. lations or rules 7 When parts are disassembled reassembly is basically the reverse of disas sembly 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 dis assembled 9 Precautions Against Static Electricity The 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 Caution Before using the wrist band pull out the power cord plug of the copier and make sure that there is no uninsulated charged objects in the vicinity Caution Dispose of used batteries and RAM ICs including lithium batteries according to the manufacturer s instructions Attention Se d barrasser de batteries et RAM ICs us s y compris les batteries en lithium selon les instructions du fabricant Vorsicht Entsorgung des gebrauchten Batterien und inklusive der Lithium Batterie nach Angaben des Herstellers e STUDIO160 200 250 GENERAL PRECAUTIONS December 2002 TOSHIBA TEC 1 1 1 1 2 1 3 1 4 1 5 SPECIFICATIONS ACCESSORIES OPTIONS SUPPLIES 1 1 1 1 ACCESSOS M
146. m is defective and repair if necessary Then you have to check all the data inside SRAM 2 Relationship between the thermistor output voltage and heat roller temperature Approx 2 33V when the temperature is 190 C approx 2 53V when the temperature is 200 C and approx 0 1599V when the temperature is 40 3 Relationship between the heat roller surface temperature and the heater thermistor 1 resistance Values in are for e STUDIO200 250 series Temperature Thermistor resistance Fuser lamp state 190 200 or below 5 9 5 01 or over ON 190 200 C 5 9 5 01 The previous state kept intact 190 200 orover 5 9KO 5 01KO or below OFF Warming up Ready 190 C 200 C During copy 190 C 200 C ped 190 200 Fuser roller temperature distribution Fuser lamp ON OFF ON ON OFF ON OFF ON OFF ON Values in are for e STUDIO200 250 series 16 001 Fig 14 6 1 4 Temperature control at heat roller ends During multi copying the temperature on the ends of the heat roller non paper passage areas generally tends to become higher than that on the paper passage areas This temperature is de tected by the heater thermistor 2 i e when it detects a temperature of 245 or over the heater lamp is set to automatically turn itself OFF regardless of the temperature on the paper passag
147. mediately displaying a C41 error However with the thermistor heater status counter 1 or below if the copier becomes ready nor mally the counter is cleared to After service calls C41 to C45 occurred and the thermistor and heater lamp have been repaired or replaced if turning the power ON does not turn the heater lamp ON and an error occurs again use code 400 in the 08 mode to check the thermistor heater status counter and clear it to 0 if neces sary Heat roller surface temperature e STUDIO160 series 190 C Thermistor resistance 5 90KQ Heat roller surface temperature e STUDIO200 250 series 200 C Thermistor resistance 5 01 December 2002 TOSHIBA TEC 14 7 e STUDIO160 200 250 FUSER UNIT EXIT UNIT Reference 1 The thermistor heater status counter never has values other than 0 1 2 3 4 5 6 7 8 and 9 written on it When the power is turned ON if the heater lamp does not turn ON and service call C41 is dis played immediately check the thermistor heater status counter If itis 2 or over be sure to check the thermistor and heater lamp Then after repairing or replacing it is necessary to reset the counter to O code 400 in 08 mode and then turn the power ON If the thermistor heater status counter should show 10 or over e g 11 there is a possibility that SRAM or the data in it may have been ruined Check the bias high voltage transformers and charge wires to see if any of the
148. mode is activated or the following covers are opened or closed as shown in the table below DC Voltage Voltage In Power Save mode Front Cover Side Cover Value V PWS signal Low Open Open 24VSW 24 24VFU2 24 24VFU1 24 24V 24 12V 12 12V 12 5VPS 5 5V 5 O 3 3V 3 3 B O Output Cut off Output Protection An overcurrent and an overvoltage protective circuit are configured for each DC voltage output If the output is shorted for some reason or an abnormal condition occurs in a circuit these circuits prevent overcurrent and overvoltage from flowing through the entire circuitry of this machine e STUDIO160 200 250 POWER SUPPLY UNIT 15 2 December 2002 TOSHIBA TEC Power supply sequence ON OFF AC input 1 4 75 5V 3 135V 3 3V gt _ lt _ 200ms 200ms max 11 4V 11 4V 12V 12V gt _ lt 500ms max lt 20 min 4 75V 5VPS 22 8V 24V 24VFU1 24VFU2 22 8V 24VSW gt k min ON H ON H PWS signal OREL Open Front cover Close Close Open Close Close Side cover 15 02 01 Fig 15 2 1 December 2002 TOSHIBA TEC 15 3 e STUDIO160 200 250 POWER SUPPLY UNIT 15 3 Heater Lamp Drive Cir
149. n also be turned ON or OFF Even if the time is set the Weekly Timer function does not work unless the function is ON 4 2 3 Automatic feed copying using the START key 1 Press the START key 2 The polygon motor and main motor start operation At the same time development bias positive output begins and the discharge LED turns ON The exhaust fan begins to turn at high speed Paper separation bias output turns ON Low 3 After the main motor reaches a constant speed charge output begins 4 Aspecified time after the charge output has begun the development bias output is switched to nega tive At the same time paper separation bias output is turned OFF 5 Afterthe polygon motor has reached a constant speed the laser is forced to turn OFF for synchroniz ing the UFE Paper pickup begins 7 Arequired time after the feed sensor has turned ON registration roller drive begins Laser exposure begins At the same time paper separation bias output is turned ON High 9 Transfer output turns ON High When a specified time has elapsed the transfer output is switched to Mid 10 Transfer guide bias output turns ON At the same time the paper separation bias output is switched to Low When a specified time has elapsed the paper separation bias is switched to Mid 11 In a specified time after the feed sensor has turned OFF the paper separation bias output is switched to Low 12 In a specified time after the feed sensor has tur
150. n the magnetic roller and the drum 3 Agitator The agitator supplies toner in the developer unit to the magnetic roller 4 Auger The auger delivers the toner supplied from the toner kit to the developer unit 5 Toner empty sensor The toner empty sensor detects the presence or absence of toner in the developer unit 6 Toner cartridge auger The toner cartridge auger supplies toner in the toner cartridge to the developer unit If the absence of toner in the developer unit is detected by the toner sensor the toner cartridge motor operates for a fixed time This allows the toner cartridge auger to turn and toner to be added to the developer unit from the toner cartridge December 2002 TOSHIBA TEC 12 5 e STUDIO160 200 250 DEVELOPER SECTION 12 5 Toner Control Circuit 12 5 1 Outline The amount of toner remaining in the process unit is detected by the piezoelectric type toner empty sensor When the amount is small the toner supply motor is driven to rotate the auger in the toner cartridge causing the toner to be supplied to the process unit 12 5 2 Toner empty detection circuit The circuit for detecting the amount of toner remaining in the process unit consists of the following Relay PWA 45V 2 gt 54TONEREN 2 4 Qi port GA 1 TESMON TES driver R493 Toner empty sensor port GA 2 1
151. nd PS wl 14 PFC 412 23 42 2 5 Fk 2 i9 7N cN39 JOB separater 15 CN35 D Cassette 4 TSM cg gt tN NST F1 05 201 4 4 ii 5 lt gt FDS1 0HP mu 162 nc 2t d CN33 20 _CN38 CA Cassete Open TRES c5 2501 97 ARN 02 KE 7 zz 8 LBL PCB AT x C2 Aus 4 TOSHIBA oe ie 5 2 EPWB F RLY AT uv WY 52 O 441301536000 18 HBJB0009904 5W RESET g 2 x CN51 v S e s d IC3 S fo gil U3 G L5 aN mue 9 o gt 2 MADE IN JAPAN gt tv to zn X LVPS 2 CN23 CN22 20 18 S g Mu 95 0 9 5 O 29 HyPS DTH Q 4 5 LSU CN53 5 CN48 10 CN24 5 Y CN50 CN52 4 y 1 1 2 7 16 02 01 e STUDIO160 200 250 PCB BOARD 16 2 December 2002 TOSHIBA TEC 16 3 PWA F PIF PWB F PIF ARI 41301511000 dene 1 7 104 165 1 6 Eo e MADE IN JAPAN 16 03 01 December 2002 TOSHIBA TEC 16 3 e STUDIO160
152. ne cover See Fig 2 6 9 Detach paper tray cover See Fig 2 6 10 Detach upper right cover R See Fig 2 6 14 Detach front frame cover F R See Fig 2 6 18 and 2 6 19 Detach exit cover See Fig 2 6 20 Remove one screw holding the top cover L See Fig 2 6 21 Remove 2 screw holding the left cover R See Fig 2 6 21 Detach inner cover See Fig 2 6 21 Detach the relay connector Remove 4 screws release the clamp and re move exit unit Harness 14 21 Connector Exit unit T 038 Note If exit roller is found dirty wipe off Fig 14 7 39 e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 15 POWER SUPPLY UNIT 15 1 Ne EL EE 15 1 2 DG Output ra ph eO Ee del coop 15 2 15 3 Lamp Drive cod er ait rai neg 15 4 15 4 Dump Heater Power Supply Circuit ASD AUD CND SAD models 15 4 15 5 Stapler Power Supply 15 4 15 POWER SUPPLY UNIT 15 1 Outline The power supply unit provides AC and DC power for each part of this machine The unit is made up of the following circuits Main switch wo ASD AUD CND SAD models Scanner dump heater 20A 125V 10A 125V Me eee pl een NAD SAD models NAD SAD models 10A 250V 1 24VSW ASD AUD CND
153. ned OFF the registration roller drive is stopped 13 In a specified time after the paper separation bias output has been switched to Low the transfer output is switched to OFF 14 The paper separation bias output is switched to High in a specitied period of time after the transfer output is turned OFF 15 When a specified time has elapsed the transfer guide bias is turned OFF 16 In a specified time after the exit sensor has turned OFF the charge is turned OFF and the paper separation bias output switched to OFF at the same time 17 The polygon motor and main motor turn OFF 18 The development bias output is reversed and paper separation bias output is turned ON Low Atthe same time the laser enable output is turned OFF 19 The development bias output is turned OFF after a specified time and the paper separation bias output and the discharge LED output are turned OFF at the same time December 2002 TOSHIBA TEC 4 3 e STUDIO160 200 250 COPIER OPERATION 4 2 4 Bypass feed copying Select Bypass Tray with the Paper Supply key on the display 1 Place paper in the bypass tray and adjust the document guides F and R to the paper width The feed sensor turns ON and the word for bypass feeding appears 2 Press the START key The message changes from for bypass feeding to COPYING The polygon motor operates The main motor operates the process unit fan motor rotates at high speed and the discharge lam
154. ny Cleaning roller bushing 1 Press roller bushing Spring 097 1 Fig 14 7 29 I Heat roller Heat roller bushing press roller press roller bushing cleaning roller cleaning roller bushing When disassembling the fuser assembly pay special attention not to damage the heat roller press roller and cleaning roller e STUDIO200 250 series 1 Remove fuser unit See Fig 14 7 1 Remove heater thermistor See Fig 14 7 2 Remove the housing assembly See Fig 14 7 10 4 Remove the heat roller separator See Fig 14 7 8 5 Release the heater cover assembly See Fig 14 7 14 6 Remove the HR drive gear 1 outer HR drive gear 3 and inner HR drive gear 3 See Fig 14 7 20 7 Remove the heater lamp See Fig 14 7 22 14 7 23 and 14 7 24 8 Remove the spring e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 14 18 Spring Spring ra 095 4 Fig 14 7 30 December 2002 TOSHIBA TEC 9 Remove the C ring to detach the HR drive gear 2 and the heat roller bushing 10 Remove 2 screws detach the arm holder and then remove the guide plate Note When HR drive gear 2 is replaced apply 0 075g of white grease molykote HP 300 o Heat roller bushing to the area around the boss inside of HR drive gear 2 See Fig 14 7 25 C ring Fig 14 7 31 0952 Screw Arm holder Guide plate 485 S Arm holder 095 3 11 Remove the C ring to detach the heat roller bushing
155. oller 1 December 2002 TOSHIBA TEC If an ADU MD 0101 and or SFB MY 1016 are attached to the copier detach it Remove paper cassette See Fig 2 6 11 Remove upper right cover R and lower right cover R See Fig 2 6 14 Remove separation holder assembly See Fig 9 7 1 Remove pickup assembly See Fig 9 7 4 Release 2 hooks Release timing belt 124 and remove pickup roller shaft assembly Detach E ring and remove pulley and clutch Detach 2 E rings Pickup assembly 072 Fig 9 7 4 Clutch Timing belt 124 080 Fig 9 7 6 E ring ow Pulle 7 we HY Pickup roller shaft Clutch i E ring Fig 9 7 7 e STUDIO160 200 250 PAPER FEEDING SYSTEM 10 DRIVE SYSTEM 10 1 10 1 Construction of Drive System cecinere entente nns 10 1 10 2 Description of o EXER EXER CEN RS RUE 10 2 10 2 ta colt Eb piena 10 2 10252 Le i ER oo S opu tu ld testen Cat ide 10 3 r 10 4 10 3 Disassembly and 10 6 Main SE eedem Daten 10 11 10 4 1 motor drive eoa Ra eee EX Fe Re ev Y rex nes 10 11 10 42 Control signals o Dee tet iL 10 12 10 DRIVE SYSTEM 10 1 Construction of Drive System The drive system dr
156. onal mirror which moves the laser beam in the scanning direction of the drum correction lens which makes uniform the rate at which the laser beam reflected by the polygon mirror reaches the drum e Polygonal mirror motor drive PWA which controls polygonal mirror motor Laser drive PWA which controls the laser beam e Hsync detection mirror lens and Hsync detector which detect the Hsync signal on which the first printing position for every scanning is based The laser scanner unit is precisely adjusted and assembled in a clean room to avoid the entry of dust which can cause trouble For that reason the laser scanner unit cannot be disassembled or adjusted in the field Laser diode Lens Laser drive PWA Lens Polygonal mirror Polygonal mirror motor drive PWA Hsync detector Slit F0 correction lens Hsync detection mirror Fig 8 1 1 08 01 01 December 2002 TOSHIBA TEC 8 1 e STUDIO160 200 250 PRINTING 8 2 Structure 1 Laser Unit The laser unit comprises a laser diode finite lens and aperture Laser diode The laser diode is compact efficient low price operates on lower power and has a long life However it is sensitive to heat Laser diode controls emission of laser beams based on the laser control ON OFF signals from the laser drive board 2 LASER SAFETY The beam of the semiconductor laser is itself extremely weak about 5 mW but focusing the parallel rays results in an incre
157. ons 1pc Operator s manual 1pc Setup report 1pc for NAD and MJD Warranty sheet 1pc for NAD CS card 1pc for MJD Process unit 1pc Toner cartridge 1pc Detouchable power cord 1pc Machine version NAD North America MJD Europe AUD Australia ASD Asia SAD Saudi Arabia CND China December 2002 TOSHIBA TEC e STUDIO160 200 250 SPECIFICATIONS 1 3 Options Original cover KA 1600PC KA 1600PC N Paper feed pedestal 1 PFP KD 1009 KD 1009 N Automatic duplexing unit 1 ADU MD 0101 MD 0101 N Automatic document feeder ADF MR 2012 MR 2012 N Reverse automatic document feeder 1 RADF MR 3011 Paper feed unit PFU MY 1015 MY 1015 N Cassette module CM MY 1017 MY 1017 N for e STUDIO200 250 series Large capacity feeder LCF KD 1010 KD 1010 N for e STUDIO200 250 series Paper feed controller PFC GH 1030 GH 1030 N Job separator JSP MJ 5001 MJ 5001 N Offset tray MJ 5002 MJ 5002 N Stack feed bypass SFB MY 1016 MY 1016 N Printer kit Printer control GA 1031 Memory kit GC 1050 GC 1050 N Fax board kit GD 1061 EU GD 1061 NA GD 1061 AU GD 1061 SA GD 1061C Internet fax kit GD 1070 NIC kit Network interface card GF 1110 Staple with surface KK 1600 Finisher MJ 1011 for e STUDIO200 250 series 1 4 Replacement Units Supplies 1 Replacement units
158. orrects input output characteristics of the scanner printer to obtain image signals hav ing input output characteristics suitable for the copy mode 6 Tone processing This function processes tone to faithfully reproduce halftone images such as photographs 7 External output systems interface This function controls output interface of the MAIN board e STUDIO160 200 250 IMAGE PROCESSING 6 6 December 2002 TOSHIBA TEC 6 4 Scanner Light reflected from the original surface is picked up by the CCD Charge Coupled Device where photo voltaic conversion is carried out By photo voltaic conversion optical image data are converted to electri cal signals These analog electrical signals are then converted to digital signals by A D conversion and the required image processing is carried out on these digital signals CCD gt Signal gt ND Shading gt next stage amplification conversion compensation 1 Photo voltaic conversion Optical signals from the original are converted to electrical signals by the CCD device For details see Chapter 7 6 1 2 Signal amplification After conversion by the CCD the electrical signals are amplified 3 A D conversion Analog signals are converted to digital signals 4 Shading correction The signals picked up by the CCD device are compensated For details see Chapter 7 6 2 December 2002 TOSHIBA TEC 6 7 e STUDIO160 200 250 IMAGE PROCESSING 6 5 P
159. ose lower Iside cover KI 3 3 LCD panel display calling for operator s attention In case of PFU JAM Clearance December 2002 TOSHIBA TEC 5 1 e STUDIO160 200 250 DISPLAY UNIT 5 2 Items Shown on the Display Panel 5 2 1 Display during normal copying No Message Condition of machine Notes 1 Wait warming up Being warmed up Displayed after the main switch is turned ON up until the machine becomes ready for copying Fig 5 2 1 When the main switch comes ON the quantity and reproduc tion ratio of copies are indicated or example as 1 100 Copy quantity indicator becomes ex 3 2 1 and copying is completed 2 READY Standby for copying Copy quantity indicator shows 1 The machine is ready for copying When a digital key is pressed and operator s instructions on that number indicates the set copying conditions can be input quantity Returns to the default condition if The set quantity can be cleared no key is pressed for the setting to 1 by pressing the CLEAR time of auto clear timer STOP key Bypass copying is possible 3 COPYING Now copying After completion of copying the Displayed by pressing the copy quantity indicator returns to START key the initially set number 4 Saving energy Energy saver conditions Reset by pressing the any key except the SUPER ENERGY SAVER key 5 Select original size Platen sort copying standby state
160. oupling to be driven December 2002 TOSHIBA TEC 10 3 e STUDIO160 200 250 DRIVE SYSTEM 10 2 3 Part C Part C feeds mainly supplies paper and transmits drive to the options SFB and PFU Registration roller Clutch Timing belt 309 to Main motor Cassette feed roller Clutch Cassette feed gear 8 SFB gear Cassette feed gear 6 PFU gear NT EC 10 2 3 1 PPS2 Fig 10 2 3 e Registration roller The driving gear train from the main motor drives the registration roller gear e Cassette feed roller The driving gear train from the main motor drives the cassette feed roller gear e Cassette feed gear 8 The driving gear train from the main motor drives cassette feed gear 8 When connected to this gear the SFB is driven e Cassette feed gear The driving gear train from the main motor drives cassette feed gear 6 When connected to this gear the PFU is driven e STUDIO160 200 250 DRIVE SYSTEM 10 4 December 2002 TOSHIBA TEC 2nd feed roller The driving gear train from the main motor and the timing belt 309 drive the 2nd feed roller drive pulley There are two systems on the 2nd feed roller drive only by the gear and by the timing belt When feeding the paper the timing belt is used to drive speed e STUDIO160 series 86 9 mm sec e STUDIO200 250 series 118 mm sec When supply ing the paper the gear is used to drive speed
161. p lights The drum developer heat roller and exit roller move 4 2 5 Interrupt copying 1 Press the INTERRUPT key The INTERRUPT key is illuminated and the message Job interrupted appears The present copy operation is stopped temporarily The copy mode automatically becomes the interrupt copy mode 2 Interrupt copying takes place 3 After the interrupt copying ends the work READY appears When INTERRUPT key is pressed again the illumination of the INTERRUPT key turns off and the copier is restored to its state prior to the interruption The message Ready to resume job appears 4 Press the START key and the operation prior to the interruption is resumed e STUDIO160 200 250 COPIER OPERATION 4 4 December 2002 TOSHIBA TEC 4 3 Fault Detection Errors are roughly classified into the following three kinds 4 3 1 Classification of faults A Warning error B Jam error C Error subject to service call December 2002 TOSHIBA TEC An abnormal condition which can occur even during normal op eration such as a paper empty state After stoppage the opera tion can be resumed It can occur even during non operation Display Add paper Toner is low Drum warning An error where the copier can be restored when the operator re moves the cause of the abnormal condition from the machine Display Toner empty Check process Misfeed in copier Misfeed in doc feeder Misfeed in duplexer Misfeed in f
162. photosensitive drum Main charger Transformer Grid control circuit 03004 Fig 3 2 3 December 2002 TOSHIBA TEC 3 Scanning Scanning is the process of directing light at the original and converting light reflected from the original to electrical signals Light reflected from the original is picked up by a CCD charged coupled device the image information held by that light is converted to electrical signals image signals and the im age signals are sent to the image processor 4 Printing Printing is the process of converting the im age signals sent from the image processor to optical signals and exposing these optical sig nals on photosensitive drum Image signals from the image processor are converted to optical signals and these optical signals are exposed by a semiconductor laser to form a static latent image on the photosen sitive drum December 2002 TOSHIBA TEC 3 3 Scanner control PC board Image processor 03005 Fig 3 2 4 Example Light intensity Value of at the CCD signals to be photodetector output Light 255 Contrast differ ences in light and dark is divided into 256 steps Dark 0 Fig 3 2 5 Image processor Printing controll block Semiconductor laser Photo sensitive drum 03006 Fig 3 2 6 e STUDIO160 200 250 COPYING PROCESS 5 Development Drum Developing is the process of converting the ele
163. r copier side cover and remove the jammed paper B 2 Clear misfed document With the optional ADF or installed this message is displayed when a document jam has occurred Reset procedure Open the ADF cover or RADF cover and remove the jammed document B 3 Toner empty When a fixed number of sheets are printed after a Toner Low state has been detected a Toner Empty state will be assumed to stop the printing If a Toner Empty state occurs printing cannot be performed until toner is supplied Reset procedure Supply toner 4 Check process This message is displayed when some trouble has occurred in the process unit It is also displayed when the life of the process unit has been reached Reset procedure Remove and install the process unit or replace it C Call for service If this message is displayed none of the operations can be performed When you press the CLEAR STOP key and 8 key at the same time while the message is displayed the error code will appear on the display The explanation of the error code is written in the SERVICE HANDBOOK e STUDIO160 200 250 COPIER OPERATION 4 8 December 2002 TOSHIBA TEC December 2002 TOSHIBA TEC 4 4 Flow Charts 4 4 1 At power ON time C Main switch ON Power supply unit fan motor ON YES Cover open Cover open YES Service call C95 Power supply unit fan motor NG Paper present over sensor 1 YE
164. r driver e Current detection resistors R9 to R12 Scanner control PWA Scanner motor A 19 IC4 Motor Scanner MPU 15 control IC Motor driver 61 BPWM R16 RIS R11 R12 7 15 08 04 01 Process of Excitation O IC4 turns the BENB signal to the HIGH level to turn off Q1 sends the BPWM signal current value setting signal to IC9 9 sends BCKO Clock Signal BDTA BDTB Serial Data Signal BSTB Strobe Signal to IC9 based on the register settings rotational direction CW CCW excitation method 2 1 2 W1 2 2W1 2 Phase and clock double edge single edge 4 IC9 allows current to flow through each phase of the motor A A B B based on the timing of BCKO BDTA BDTB and BSTB thereby driving the motor 5 The current flowing through the motor flows from R9 to R12 to generate voltage This voltage is compared with the voltage set by the BPWM signal in IC9 and the current to flow through the motor is controlled based on its result e STUDIO160 200 250 SCANNER 7 6 December 2002 TOSHIBA TEC 9
165. r to drive the entire system C 1 Main motor 6 TS MOT Drives the auger in the toner cartridge and C 1 Toner supply motor supplies toner to the process unit M7 T UP MOT Lifts up the tray of the copier cassette C 1 Tray up motor December 20 02 TOSHIBA TEC 2 15 e STUDIO160 200 250 OUTLINE OF THE MACHINE 5 Clutches Symbol Name Function Remarks CL1 RGST CLT Transmits power to the registration roller B 1 Registration roller clutch CL2 OCF CLT Transmits power to the 2nd feed roller of the B 1 2nd feed roller clutch option cassette CL3 PU CLT Transmits power to the pickup roller and feed B 3 Pickup roller clutch roller of the copier cassette 6 Thermostat and thermistors Symbol Name Function Remarks THM1 FUS THM 1 2 Prevents abnormal overheat of the heater D 1 THM6 Fuser thermostat 1 2 lamp THM2 HEA1 THM Detects the surface temperature of the heat D 1 Heater thermistor 1 roller THM3 2 Detects the surface temperature of the heat D 1 Heater thermistor 2 roller end THM4 SCN THM Keeps the scanner damp heater at a fixed D 2 Scanner thermostat temperature ASD AUD CND SAD models 5 DRM THM Detects the surface temperature of the drum D 2 Drum thermistor e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 16 December 2002 TOSHIBA TEC 7 Heaters and lamps
166. r wire located in rear side from the hook Notes 1 Be sure to attach the main charger wire through the space between the main charger cleaning pads See Fig 3 4 7 2 Do not touch the main charger wire with your fingers 3 Clean the inside of the main charger as sembly if toner is stuck December 2002 TOSHIBA TEC Main charger assembly Fig 3 4 4 S E gt gt Main charger EE Hook Fig 3 4 5 Ex Main charger wire Main charger wire Fig 3 4 6 Main charger wire Main charger wire cleaning pad Main charger wire cleaning pad Fig 3 4 7 e STUDIO160 200 250 COPYING PROCESS C Drum 1 Remove the toner cartridge and the process unit Detach the separation claw See Fig 3 4 1 Detach the drum assembly See Fig 3 4 2 Remove 2 screws and detach the drum bracket Detach the drum Note When the drum is replaced with a new apply patting powder lubricant on the en tire surface of the new drum including both edges to where the OPC is not coated D Drum cleaning blade 1 Remove the toner cartridge and the process unit Detach the separation claw See Fig 3 4 1 Detach the drum assembly See Fig 3 4 2 Detach the DLE PWA assembly See Fig 3 4 3 5 Detach the main charger assembly See Fig 3 4 4 Detach the drum See Fig 3 4 8 Pull out 2 pins and detach the drum cleaning
167. radiation time The charge generated at the photosensor is transferred to the transfer area shifted from right to left in the figure below according to the transfer clock and is output from the CCD During this operation the reaction speed of the CCD is slow it takes time for the charge to be transferred by the shift register so even numbered and odd numbered image signals are output in parallel Transfer clock Transfer area lt 1 2 Photosensor area v 7447 7448 7449 7450 M Transfer area E Shift register e STUDIO160 200 250 SCANNER Transfer clock Principle of CCD Photo Voltaic Conversion Optical energy NZ P layer N layer Detailed photosensor 08 06 01 December 2002 TOSHIBA TEC 7 6 2 Shading compensation The following problems effect the voltage values obtained by photo voltaic conversion by the CCD 1 a light distribution of light source is varied 2 The reflected light is collected by a lens the light path is shortest at the CCD center and longest at the ends there is a difference in the intensities of light reaching the CCD 3 The photo voltaic capacities of each of the 7 450
168. rent using the digital keys 7 Separation Adjustable output constant current using the digital keys 8 Discharge 1 Discharging position Discharge by exposure after cleaning 2 Discharge lamp Discharge by red LED 9 Cleaning 1 System Blade system lt 2 Recovered toner Non reusable December 2002 TOSHIBA TEC 3 9 e STUDIO160 200 250 COPYING PROCESS 3 4 Disassembly and Replacement When disassembling the process unit pay special attention not to damage the drum and magnetic roller Also be careful not to be injured by the edges of the parts A Separation claw 1 Remove the toner cartridge and the process unit 2 Detach the separation claw Note Be careful not to be injured by the edges of the separation claw and star wheel Separation claw Fig 3 4 1 xs B Main charger wire Main charger grid 1 Remove the toner cartridge and the process unit gt 2 Remove4 screws and detach drum assem bly Drum assembly 3 Remove 2 screws and detach the DLE PWA assembly Screw Fig 3 4 3 gt e STUDIO160 200 250 COPYING PROCESS 3 10 December 2002 TOSHIBA TEC 4 Detach the main charger assembly Note Besure notto touch the grid part of the main charger grid 5 Release 4 hooks and detach the main charger grid 6 Pull out the main charger wire bracket and re move the main charger wire located in front side from the spring 7 Remove the main charge
169. rew to release the washer and clamp Detach one connector from RELAY PWA 49 and release 2 clamps Ifthe damp heater is installed remove the screw and detach FUS PWA cover See Fig 2 6 34 If the damp heater is installed detach the damp heater harness connector and release the three clamps RELAY PWA 039 1 Fig 7 8 1 FUS PWA 039 3 Fig 7 8 2 December 2002 TOSHIBA TEC 21 Remove 2 screws to detach the NIC cover 22 Lift the NIC base plate and release the damp heater harness 23 Remove 2 screws 24 Remove 8 screws and remove scanner stay R December 2002 TOSHIBA TEC NIC cover Damp heater harness 039 4 Screw Scanner stay L Screw Screw Scanner stay R e STUDIO160 200 250 SCANNER 25 Release the clamp and take out scanner as sembly Important 1 After the replacement of the scan ner assembly download firmware for the scanner PWA For details see chapter 5 of the Service Hand book 2 Download the MAIN PWA firmware if necessary after confirming the version of it 3 When the error message 14 ap pears after replacing the scanner assembly refer to the Service Handbook and perform 08 389 Note When mounting scanner assembly be careful not to damage the actuator B Original glass 1 If an Original Cov
170. rinter Image signals processed on the Main board are processed on the print control ASIC and the laser drive board on the same Main board Then they are laser controlled for the write operation 1 Setting of effective image area The top bottom left and right margins are set 2 Synchronization Clock Generation HSYNC and the reference clock signal at printer block block of horizontal synchronizing synchronized with the signal signal HSYNC 3 Laser drive ON OFF control of the semiconductor laser and APC Auto Power Control control e STUDIO160 200 250 IMAGE PROCESSING 6 8 December 2002 TOSHIBA TEC T 7 1 7 2 7 7 4 7 5 7 6 7 7 7 8 7 9 nho sec RM D HIE TEN 7 1 M CERT 7 2 Scanner Motor nea e bc eel 7 5 Scanner Motor Drive 7 6 Exposure Lamp Control Lettonia ia naa n 7 9 cExposure ai CUR aa gd 7 9 7 5 2 Exposure Lamp Control 7 10 General Description of CCD 0 0 0000 7 12 7 6 1 Photo voltaiG Conversion eared 7 12 7 6 2 Shading 7 13 Au
171. roller The pressure roller is pressed against the heater roller by springs 4 Separation claws The separation claws separate the paper affixed to the heater roller 5 Cleaner fuser roller 6 7 The cleaner fuser roller is attached so as to contact the pressure roller to remove the toner and paper scraps that have stuck to the heater roller during the fusing the process Heater thermistor 1 center section The thermistor detects the temperature of the heat rollers so that it is maintained within a fixed temperature width actually around 200 i e higher than the lower limit defective fusing temperature and the upper limit toner burning temperature In other words the thermistor controls the temperature so that the heater lamps turn ON when the heater roller is low than the temperature setting and turn OFF when they are above the temperature setting Heater thermistor 2 end section The temperature distribution of the heater roller sometimes differs greatly at the center section and end section in the lengthwise direction depending on the printing conditions The thermistor 2 detects the temperature at the end section This thermistor controls the temperature so that the heat lamp turns OFF when either of the values detected by the thermistor 1 or thermistor 2 exceeds the tem perature setting e STUDIO160 200 250 FUSER UNIT EXIT UNIT 14 4 December 2002 TOSHIBA TEC 8 Fuser thermostat 1 The
172. rom the mo ment when the feed sensor turns ON to the moment when the registration roller clutch is turned ON to make the paper sag thereby correcting it to be horizontal e STUDIO160 200 250 PAPER FEEDING SYSTEM 9 6 December 2002 TOSHIBA TEC 9 5 Function of Each Part 1 Tray up assembly The tray up assembly turns the tray lift shaft of the paper cassette to lift the paper tray Pickup roller The pickup roller transports the paper from the paper cassette The power of the pickup feed roller is transmitted to the pickup roller through the belt for rotation Pickup feed roller The pickup feed roller transports the paper which has been transported by the pickup roller to the PU guide assembly When the pickup clutch is turned ON the power of the main motor is transmitted to the pickup feed roller for rotation Separation roller When two or more sheets of paper have been transported by the pickup roller the separation roller allows only the top sheet of paper to pass due to the coefficient of friction between the pickup feed roller paper and separation roller When a single sheet of paper has been transported the separa tion roller turns by means of the power of the pickup feed roller Pickup clutch When transporting the paper from the paper cassette the clutch is turned ON to transmit the power of the main motor to the pickup feed roller Main drive gear assembly The main motor gear a
173. rom the moment when the registration clutch turns ON to the moment when the feed sensor turns OFF exceeds 5 38 seconds the message Misfeed in copier will be displayed Reset procedure Open the side cover and remove the paper to turn the sensor OFF then close the side cover e STUDIO160 200 250 COPIER OPERATION 4 6 December 2002 TOSHIBA TEC 2 EXIT JAM When paper is fed from the cassette of the copier the sensors feed sensor and exit sensor turn ON and OFF in order At this time if the exit sensor does not turn OFF for a fixed time after the feed sensor of the copier has turned OFF an EXIT JAM will be assumed time taken from the moment when the feed sensor turns OFF to the moment when the exit sensor turns OFF exceeds 3 12 seconds the message Misfeed in copier will be dis played Reset procedure Open the side cover and remove the paper to turn the sensor OFF then close the side cover The following are jams which can occur when options are installed 3 SFB When paper is loaded into the SFB the SFB feed sensor detects the presence of paper The SFB clutch motor turns ON to pick up the paper At this time if the feed sensor of the copier does not detect the presence of paper even after a fixed time has elapsed SFB miss feed will be assumed and the message Misfeed in bypass will be displayed Reset procedure Remove the jammed paper and remove all the paper remaining in the tray of the SFB to turn OFF th
174. s unit life value 27k or 33k Enter the value obtained by multiplying the remainder by 10 Enter 0 Enter the remainder obtained by dividing the total counter value 08 351 by the process unit life value 27k or 33k For the setting procedures refer to section 1 2 5 of the Service Handbook e STUDIO160 200 250 OUTLINE OF THE MACHINE 2 30 December 2002 TOSHIBA TEC 10 Entering the adjustment value for the printing position Enter the setting value for the following 21 items For the setting values refer to the FUNCTION LIST printed before replacing the MAIN PWA or the FUNCTION LIST on the inside of the rear cover of the copier When the FUNCTION LIST is not printed in 08 404 401 251 252 perform the following setting 08 404 Enter the remainder obtained by dividing the total counter value 08 351 by the process unit life value 27k or 33k 08 401 Find a remainder by dividing the total counter value 08 351 by the process life unit value 27k or 33k Enter the value obtained by multiplying the remainder by 4 7 for e STUDIO160 200 series or 4 5 for e STUDIO250 series 08 251 When it was set before the MAIN PWA was replaced perform the setting again 08 252 Enter the remainder obtained by dividing the total counter value 08 351 by the PM life value 81k or 99k When 08 251 is 0 however it is not necessary to enter the 08 252 value For the setting procedures refer to sections 1 2 1 and 1 2 2 of the Service
175. s OFF At this time the presence or absence of paper is detected by the paper empty sensor 3 Even if the power is turned ON while the paper cassette is not mounted the tray up motor will not turn ON B Ready state 1 When the paper tray of the paper cassette ascends and the presence or absence of paper is de tected the standby mode will be activated 2 When the paper cassette is removed while in the standby mode the tray lift shaft is dislocated from the tray up assembly thereby causing the tray to descend When the paper cassette is mounted again the tray ascends causing the presence or absence of paper to be detected C Paper feeding 1 When the pickup clutch is turned ON the power of the main motor is transmitted to the pickup feed roller through each gear for rotation 2 The rotation of the pickup feed roller is transmitted to the pickup roller through the belt 3 The paperis transported from the paper cassette by means of the pickup roller and pickup feed roller 4 A fixed time after the feed sensor detects the top of paper the registration roller clutch is turned ON 5 When the registration roller clutch is turned ON the power of the main motor is transmitted to the registration roller through each gear for rotation 6 The paper is transported by means of the registration roller and pinch roller Even if the paper has been transported askew the paper is pressed to the registration roller during the time f
176. s of two ther mistors heater thermistor 1 and 2 and turns ON and OFF the heater lamp to keep the fusing temperature fixed The thermistor has the property of reducing its resistive value at high temperature Therefore the heater control circuit detects that the higher the thermistor resistive value the lower the heat roller temperature and that the lower the resistive value the higher the temperature The CPU controls turning ON and OFF the heat roller so that the detected temperature is within the set range of fusing temperatures Finding the detected temperature abnormal the CPU performs error processing to stop the supply of power to the heat roller If the heat roller temperature abnormally rises due to short circuiting of the triac or temperature control disabled by breaking of the thermistor etc the thermostat cuts off the power supply line to the heater lamp to prevent the fuser unit from being damaged The following abnormal conditions are detected 1 Thermistor abnormal or heater lamp broken at warm up time SERVICE CALL C41 is displayed if the heat roller temperature is below 40 C the output voltage of heater thermistor 1 is 0 1599V continuously for 500 milliseconds 25 seconds immediately after the start of warming up immediately following the power ON or the start of warming up at the time of restoration from the Super Power Save mode 2 Thermistor abnormal after error diagnosis during warming up SERVICE CAL
177. signal Detection signal for rotational state Low level Rotation at constant speed High level Rotation at non constant speed e STUDIO160 200 250 DRIVE SYSTEM 10 12 December 2002 TOSHIBA TEC 11 DRUM RELATED SECTION 11 1 11 1 General DescrIDHOF 11 1 TEZ COMSIMICION E TII om SEIT 11 1 1152 Dove 11 2 11 4 Function of Each 11 3 11 5 High Voltage Output Control Circuit 11 4 Uf cse 11 4 11 5 2 GOTO method dude qn e etas quay dida 11 4 11 6 Disassembly and Replacement 11 7 11 DRUM RELATED SECTION 11 1 General Description The drum related section performs discharging and charging to form an electrostatic latent image on the drum in the printing process It also transfers a toner image on the drum to paper and separates the paper from the drum 11 2 Construction Paper guide assembly guide bias Drum Discharge LED Separation charger Main charger Vacuum fan motor Process unit Transfer charger Pinch roller guide bias 11 02 01 The drum related section consists of the following parts Drum Discharge LED Main charger Transfer charger Separation charger Paper guide assembly Vacuum fan motor December 2002 TOSHIBA TEC 11 1 e STUDIO160 200 250 DRUM RELATED SECTION 11 3 Dri
178. ssembly Connector Fig 7 8 14 049 3 INV PWA Locking support T Fig 7 8 15 22 December 2002 TOSHIBA TEC Note Ifthe damp heater is installed release one hook and detach one connector SAD ASD AUD CND models 5 Detach all the connectors from scanner PWA Note Route the flexible cable under scanner PWA to avoid damage beforehand When attaching the flexible cable securely lock the connector locks on both sides of the connector 6 Remove 2 screws and remove scanner PWA Important 1 After the replacement of the scanner PWA download firmware for the scanner PWA For details see chapter 5 of the Service Handbook Download the MAIN PWA firmware if necessary after confirming the version of it 3 After replacing the scanner PWA program 05 306 304 and then 305 by referring to the Service Handbook 4 When the error message 14 appears after replacing the scanner assembly refer to the Service Handbook and perform 08 389 Note When removing scanner PWA beware of scanner drive shaft December 2002 TOSHIBA TEC Connector Scanner PWA Connector Fig 7 8 18 7 23 e STUDIO160 200 250 SCANNER F Exposure lamp 1 If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier detach it 2 STP KK 1600 is attached to the copier detach it Detach the man
179. ssembly transmits the power of the main motor to the paper feed roller and feed roller 7 Main motor The main motor is a power source for paper feed roller 1 and the feed roller Registration roller The registration roller transports the paper from the PU guide assembly to the development section When the registration roller clutch is turned ON the power of the main motor is transmitted to the registration roller for rotation Registration roller clutch When transporting the paper from the transfer section to the exit roller the registration roller clutch is turned ON to transmit the power of the main motor to registration roller December 2002 TOSHIBA TEC 9 7 e STUDIO160 200 250 PAPER FEEDING SYSTEM 10 Pinch roller The pinch roller helps registration roller transport the paper Pressed to registration roller by the spring the pinch roller turns with the power of registration roller 11 Paper empty sensor The paper empty sensor detects the presence or absence of paper in the paper cassette 12 Pickup sensor The pickup sensor detects that the tray of the paper cassette has been lifted to the specified posi tion The tray is lifted until the pickup roller is pushed by the tray to turn OFF the pickup sensor 13 Feed sensor The feed sensor detects the transport of the paper by the PU guide assembly Registration clutch turns ON a fixed time after the feed sensor detects the top of paper e STUDIO160
180. tat Fig 14 7 18 0924 e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 14 14 December 2002 TOSHIBA TEC F HR drive gear1 HR drive gear3 1 Remove fuser unit See Fig 14 7 1 2 Remove heater thermistor See Fig 14 7 2 3 Remove the housing assembly See Fig 14 7 10 4 Remove the heat roller separator See Fig 14 7 8 5 Release the heater cover assembly See Fig 14 7 14 6 Remove 2 screw and detach the heater lamp holder Remove the HR drive gear 1 Remove the outer HR drive gear 3 and the in ner HR drive gear 3 Note When the HR drive gear 1 outer HR drive gear 3 or inner HR drive gear 3 is replaced apply 0 1g of white grease molykote HP 300 to each stud and gear teeth Also the same amount of grease should be applied to the part between the heater lamp e STUDIO160 series HR drive gear 1 Heater lamp holder White grease Stud Fig 14 7 19 e STUDIO200 250 series HR drive gear 1 lt gt Z Heater lamp holder Stud holder and HR drive gear 3 andheaterlamp Screw holder and outer HR drive gear 3 White grease Outer HR Inner HR driver gear 3 driver gear 3 Fig 14 7 20 TER December 2002 TOSHIBA TEC 14 15 e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT G Heater lamp U900 heater lamp E400 500 1 Remove fuser unit See Fig 14 7 1 2 Remove heater thermistor See Fig 14 7 2 3 Remove the housing assembly S
181. tch Pickup roller 09 03 01 The driving force of the main motor is transmitted to each clutch through each gear of the main drive gear assembly As the pickup clutch is turned ON the pickup feed roller turns As the registration roller clutch is turned ON the registration roller Main motor Main drive gear 2 Main drive gear 3 4 Main drive gear 4 4 Main drive gear 6 4 Transmission gear 3 Pickup clutch Pickup feed roller Pickup roller Registration drive gear Registration roller clutch Registration roller e STUDIO160 200 250 PAPER FEEDING SYSTEM 9 2 December 2002 TOSHIBA TEC 9 3 2 Tray lift shaft Tray up gear 1 Tray up gear 2 Tray up gear 3 Tray up gear 4 Tray up gear 5 09 03 02 The driving force of the tray up motor is transmitted to the tray lift shaft through each gear of the tray up assembly to turn the tray lift shaft Tray up motor Tray up gear 1 2 Tray up gear 3 gear 4 Tray up gear 5 gt Tray lift shaft December 2002 TOSHIBA TEC 9 3 e STUDIO160 200 250 PAPER FEEDING SYSTEM 9 4 Description of Operation 9 4 1 Tray section Tray lift shaft Paper tray Tray lift lever 09 04 01 As the tray up motor of the tray up assembly turns ON the tray lift shaft turns through the lift gear The rotation of the tray lift shaft
182. te Apply 0 10 of the grease 5 6020 Developer x GREASE to the gear teeth of the devel assembly A E ring oper drive gear 1 except the part used for Developer hooking the timing belt 138 developer drive drive gear 1 gear 2 and magnetic roller drive gear Fig 3 4 23 xd 8 Release 2 hooks and detach the magnetic roller Developer assembly guide Fig 3 4 24 e STUDIO160 200 250 COPYING PROCESS 3 16 December 2002 TOSHIBA TEC 9 Detach the developer cover See Fig 3 4 16 Doctor blade Screw 10 Remove 3 screws and detach the doctor blade Notes 1 When attaching the doctor blade adjust the position by the procedure below Do not rotate the magnetic roller until the adjustment is completed If the magnetic roller is rotated during the adjustment repeat the procedure from 1 1 Fix the doctor blade using 3 screws temporarily Doctor sleeve jig 2 Insert the jig of the gauge 0 275 into blade the gap between the magnetic roller 2 Doctor blade and doctor blade Doctor sleeve jig The jig should be inserted into the po Magnetic sitions of 3 screws roller 3 Tighten the screws while the doctor blade is passed against the doctor sleeve jig lightly 4 Insert the jig of the gauge 0 25 into the gap between the magnetic roller and doctor blade Fig 3 4 26 Confirm that the jig moves smoothly 3 4 26 to the front and rear sides and the jig of the gauge 0 30 cannot
183. the energy accumulated in winding Np is supplied from the Ns winding of the secondary circuit as electric power As IC1 turns on and off Q1 in this way high frequency electric power is supplied from the secondary circuit of T1 and fed to the exposure lamp for lighting monitors the input voltage and controls the on off time in response to the fluctuation in the input voltage It shortens the on time of Q1 when the input voltage rises and extends the on time of Q1 when the voltage drops Scanner control PWA Inverter PWA Exposure lamp 19 15 08 05 02 December 2002 TOSHIBA TEC 7 11 e STUDIO160 200 250 SCANNER 7 6 General Description of CCD control 7 6 1 Photo voltaic conversion The purpose of photo voltaic conversion is to form electrical signals corresponding to the intensity of light reflected from the original A CCD Charge Coupled Device is used for photo voltaic conversion CCDs are single chip photo voltaic conversion device in which several thousands of photosensing elements several microns square are arranged in a single line This copier uses a CCD having 7 450 of these photosensing elements The photosensor comprises P layer N layer semiconductor Optical energy generates a minus charge on the P layer proportional to the optical energy and ir
184. 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 fans etc When servicing the machines with the main switch turned on be sure not to touch live sections and rotating operating sections Avoid exposure to laser radiation Use suitable measuring instruments and tools December 2002 TOSHIBA TEC e STUDIO160 200 250 GENERAL PRECAUTIONS Avoid exposure to laser radiation during servicing Avoid direct exposure to beam Do not insert tools parts etc that are reflective into the path of the laser beam Remove all watches rings bracelets etc that are reflective 4 Main Service Parts for Safety The breaker door switch fuse thermostat thermistor etc are particularly important for safety Be sure to handle install them properly 5 Cautionary Labels During servicing be sure to check the rating plate and the cautionary labels such as Unplug the power cord during service Hot area Laser warning label etc to see if there is any dirt on their surface and whether they are properly stuck to the copier 6 Disposition of Consumable Parts Packing Materials Regarding the recovery and disposal of the copier supplies consumable parts and packingm a terials it is recommended to follow the relevant local regu
185. tive element while the pre exposure effect maintains a fixed photosensitive surface potential before the charging process is again initiated Transfer charger Transfer the toner on the drum to the copy paper When high voltage is applied to this charger wire the air around the wire is ionized electrostatically charged The ionized air is attracted to the backside of the copy paper This phenomenon is referred to as corona discharged The backside of the copy paper is positively plus charged using the principle of corona discharge Paper guide assembly Positive plus bias voltage is applied to the guide to prevent that the of translatability is lowered under the condition such as high humidity Separation charger Separates the copy paper with toner from the drum When high voltage is applied to this charger wire the air around the wire is ionized electrostatically charged The ionized air is attracted to the back side of the copy paper This phenomenon is referred to as corona discharged The backside of the copy paper is negatively minus charged using the principle of corona discharge The electrostatic attraction between the paper and the drum weakens 7 Vacuum fan motor Works to help separation of copy paper from the drum surface by sucking the air form the back side of the paper December 2002 TOSHIBA TEC 11 3 e STUDIO160 200 250 DRUM RELATED SECTION 11 5 High Voltage Output Control Circuit 11 5 1
186. tomatic Original Size Detection Circuit e STUDIO200 250 series 7 14 7 7 1 Principle of original size detection 7 14 7 4 2 Original size detection uie Ceo med erattu 7 14 Damp Heater Control Circuit ASD AUD CND SAD models 7 17 Disassembly and Replacement 7 18 7 SCANNER 7 1 Functions In this copier s scanner light is directed at the surface of the original and the light reflected from the original projects to the CCD Charge Coupled Device by means of mirrors lens and a slit Photo voltaic conversion by this CCD converts optical image data to electrical signals These resultant analog signals undergo A D conversion to be converted to digital signals These digital signals undergo various com pensation processes to create the required image These digital signals are computed and processed and then sent to the printer EA Reflector Exposure lamp Xenon glass Scanner motor pulley Carriage 1 rail Carriage 1 Scanner drive gear I E TEOM Carriage 2 rail Carriage 2 Lens Scanner control PWA CCD PWA 08 01 01 December 2002 TOSHIBA TEC 7 1 e STUDIO160 200 250 SCANNER 7 2 Configuration The following describes th
187. trength of the light incident to the photo conductive carrier Example When incident light is strong the resistance decreases photosensitive drum becomes a carrier When incident light is weak the resistance increases photosensitive drum becomes an insulator Formation of Electrostatic Latent Image The minus potential on the drum surface cor responding to black areas of the original are removed by the charging scanning printing and discharging processes described later and the minus potential remains on areas cor responding to white areas of the original The image on the drum resulting from this mi nus potential is called a latent image as it can not be seen directly by the human eye 2 Charging Charging is the process of uniformly apply ing a charge to the surface of the photosensi tive drum The minus corona discharge of the charger wire is controlled by the grid to charge the drum sur face to a uniform minus potential The drum surface potential is determined by the potential of the grid and the grid is deter mined by the grid control circuit inside the trans former e STUDIO160 200 250 COPYING PROCESS 3 2 Ree Photoconductive layer Base 03002 Fig 3 2 1 Structure of the photosensitive drum Time t 500 Surface potential V White area of original ET Dis Charg 1000 charge ing process process 03003 Fig 3 2 2 Electric potential of the
188. trol panel front cover 1 If a Finisher MJ 1011 is attached to the copier detach the finisher plate If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Detach scanner cover See Fig 2 6 3 Remove one screw release one tab and detach control panel front cover G Control panel bottom cover 1 e STUDIO160 200 250 OUTLINE OF THE MACHINE If a Finisher MJ 1011 is attached to the copier detach the finisher plate If an Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Detach scanner cover See Fig 2 6 3 Detach control panel front cover See Fig 2 6 6 Remove 2 screws release one tab and detach control panel bottom cover 2 22 Screw Control panel front cover Fig 2 6 6 d Control panel bottom cover 006 2 Fig 2 6 7 December 2002 TOSHIBA TEC H Control panel 1 Ifa Finisher MJ 1011 is attached to the copier detach the finisher plate 2 Original Cover KA 1600PC ADF MR 2012 or the RADF MR 3011 is attached to the copier open it Control panel Screw Ground wire 3 Detach scanner cover See Fig 2 6 3 Detach control panel front cover See Fig 2 6 6 5 Detach control panel bottom cover See Fig 2 6 7 dropping 6 Remove one screw and detach the ground wire Fig 2 6 8 7 Detach control panel harness 8 Remove 2 screws
189. ual pocket If a Finisher MJ 1011 is attached to the copier detach the finisher plate gt Detach top cover See Fig 2 6 2 Detach scanner cover See Fig 2 6 3 Detach top cover L See Fig 2 6 4 Detach top cover R See Fig 2 6 5 Remove the 12 screws and detach scanner frame cover Note When attaching scanner frame cover cor rectly fit the tab of scanner frame and tighten the screws while keeping down scanner frame cover Tighten the screws in the order of numbers The unnumbered screws may be tightened not in order 9 Remove INV PWA assembly See Fig 7 8 14 for e STUDIO200 250 10 Detach the connector from INV PWA CN2 remove one screw and detach the ground wire e STUDIO160 200 250 SCANNER Scanner frame cover e STUDIO160 Ground wire e A Screw Connector Fig 7 8 20 053 1 e STUDIO200 250 Ground wire Connector gs ML INV PWA Fig 7 8 21 Screw December 2002 TOSHIBA TEC 11 Loosen one screw securing cable holder and release the lamp cable Carriage 1 Notes When installing the lamp cable note the following points 1 When retaining the lamp cable with cable holder the mark of the lamp cable must be at the edge of cable holder 2 After installing the lamp cable check that carriage 1 carriage 2 is not lifted If lifted Lamp cable secure it by moving the lamp cable front Fig 7 8 22 uS to back 12 Move carr
190. uctor lasers Current mA Optical output must be adjusted so that it is main tained at a constant value Also as the optical out Threshold current put of the semiconductor laser drops when its tem perature increases is also required to main Fig 8 3 1 tain the optical output at a constant value Semiconductor laser Laser power Laser driver comparison circuit as circuit Constant optical output Monitor output Monitor output conversion 08 03 02 Fig 8 3 2 Block diagram Fig 8 3 2 shows a block diagram of the semiconductor laser control circuit The monitor output from the semiconductor laser is controlled for each of the semiconductor lasers beforehand so that a constant voltage is maintained when the optical output is 1 mW After conversion the voltages are fed back to the laser power comparison circuit Here comparison of the laser power voltage set to the control circuit is carried out for every single scanning As a result when the laser power is insufficient the forward current is increased in the laser driver circuit and alternatively when the laser power is excessive the forward current is decreased so that the optical current is constant December 2002 TOSHIBA TEC 8 5 e STUDIO160 200 250 PRINTING 8 4 Disassembly and Replacement A Laser scanner unit 1 Ifa Finisher MJ 1011 is attached to the copier detach the finisher plate and junction block 2 If a JSP MJ 5001 or OCT MJ
191. ve Description 1 Drum Main drive gear 5 Main motor Drum Drum drive gear 11 03 01 The drum rotates as the driving force of the main motor is transmitted to it through each gear Main motor Main drive gear 5 Drum drive gear gt Drum e STUDIO160 200 250 DRUM RELATED SECTION 11 2 December 2002 TOSHIBA TEC 11 4 Function of Each Part 1 Drum The drum comprises a drum shaped Aluminum base coated with an organic photosensitive element photoconductor film The principle of Photoconductivity indicates that insulating properties of the material are evidenced in the dark Likewise its conductive properties are evidenced in the presence of light 9 Main charger Applies a negative electrostatic charge to the drum through a high voltage transformer When high voltage is applied to this charger wire the air around the wire is ionized electrostatically charged The ionized air is attracted to the drum s surface This phenomenon is referred to as corona dis charged In the dark the surface of the drum is negatively minus charged using the principle of corona discharge Discharge LED Lower the electrical resistance of the photosensitive surface that was left over after the exposure and transfer processes The discharge LED has two effects a cleaning effect and effect The cleaning effect neutralizes and eliminates the residual charge on the surface of the photosensi
192. version ASIC ST LOUIS Shading correction High quality image processing A ASIC EET image memory editing editing Image processing processing gamma correction Smoothing processing section tone processing and external output systems interface MAIN board ASIC PTC External input systems interface gt memory Image area control Memory copy vertical horizontal Laser related control alternate copy sort copy group copy magazine copy simplex reduction concatenation duplex reduction concatenation image combination date annotation sheet insertion mode etc Laser unit Image data flow Fig 6 2 1 DM e STUDIO160 200 250 IMAGE PROCESSING 6 2 December 2002 TOSHIBA TEC 6 3 SLG Board 6 3 1 Features 1 The image processing ASIC is controller by the CPU on the SLG board 2 The SLG board implements the following image processing functions High quality image processing Image memory editing Editing processing Gamma correction processing Tone processing External output systems interface 6 3 2 Functions of the image processing circuit The image processing ASIC installed on the SLG board implements the following functions 1 High quality image processing A Range correction This function converts the image signal to density range width and corrects it to match each origi nal When making a copy of
193. vertouch the tip of the heat roller ther mistor Also check that the heat roller thermistor is not bent If the metal portion of its tip is located above the dotted line as shown in Fig 14 7 6 in the direction away from the heat roller replace the heat roller thermistor with a new one 2 When attaching the heat roller thermistor make sure that it should be attached with no loose remained and its tip is not bent Also after attaching the heat roller ther mistor check that its tip contacts with the heat roller C Heat roller separator 1 Remove fuser unit See Fig 14 7 1 2 Loosen2 knobs and open the fuser front cover December 2002 TOSHIBA TEC 14 11 Screw terminal Hook terminal Fig 14 7 4 wa Heater thermistor Heat roller 086 Fig 14 7 6 ien Fig 14 7 7 e STUDIO160 200 250 FUSER UNIT PAPER EXIT UNIT 3 Remove the spring from the fuser unit and de Spring tach the heat roller separator 4 Remove the spring from the heat roller sepa rator Heat roller separator 087 5 D Housing 1 Remove fuser unit See Fig 14 7 1 2 Open the fuser front cover See Fig 14 7 7 3 Remove 2 screws and detach the housing Screw Housing 088 E Fuser thermostat fuser front cover 1 Remove fuser unit See Fig 14 7 1 2 Remove heater thermistor See Fig 14 7 5 3 Remove 2 screws
194. wer cassette No paper size Paper size size cassette with CM designated designated A4 LT 20 20 20 20 20 12 20 4 16 16 16 16 12 16 LT R 17 17 17 17 12 17 B4 14 14 14 14 12 14 LG 14 14 14 14 12 14 A3 LD 12 12 12 12 12 12 December 2002 TOSHIBA TEC 1 1 e STUDIO160 200 250 SPECIFICATIONS e STUDIO250 series Copies min Paper Upper PFU PFP LCF Bypass feeding SFB supply Paper cassette Upper Lower cassette No paper size Paper size size cassette with CM designated designated A4 LT 24 6 24 6 24 6 24 6 24 6 14 24 6 A4 R 19 19 19 19 14 19 LT R 20 20 20 20 14 20 B4 16 16 16 16 14 16 LG 16 16 16 16 14 16 A3 LD 14 14 14 14 14 14 shows Cannot be used The copy speeds in the above table are available when originals are manually placed for single side multiple copying System copy speed Copies min Copy mode e STUDIO160 e STUDIO200 e STUDIO250 series series series Single sided originals 1 set 12 15 15 3 sets 14 17 19 Single sided copies Non sort 5 sets 15 18 21 Single sided originals 1 set 5 6 6 3 sets 8 10 11 Two sided copies Sort 5 sets 9 12 13 Two sided originals 1 set 6 7 7 3 sets 10 12 14 Single sided copies Sort 5 sets 12 14 17 Two sided originals 1 set 5 6 6 3 sets 8 11 11 Two sided copies Sort 5 sets 10 12 13 Copy spe
195. y feeder 03001 1250 x 2 sheets Option for e STUDIO200 250 series Fig 3 1 1 December 2002 TOSHIBA TEC for e STUDIO200 250 series Charging Negatively charges the surface of the photosensitive drum Original exposure Images are converted to optical signals Scanning Image optical signals are con verted to electrical signals Printing Image electrical signals are con verted to optical signals for laser emission and exposed on the photosensitive drum Development toner adheres to the sur face of the photosensitive drum and forms a visible image 5 Transfer bias Increases transfer efficiency Transfer Transfers the visible image from the drum onto the transfer copy sheet Separation Separates the transfer sheet along with the toner from the drum Fixing Fixes the toner on the transfer sheet by applying heat and pressure Cleaning Mechanically removes any re maining toner on the drum Discharger LED array Discharges any re maining charge from the drum e STUDIO160 200 250 COPYING PROCESS 3 2 Details of Copying Process 1 Photosensitive Drum The photosensitive drum has two layers an outer and an inner layer The outer layer is a photoconductive layer that uses an organic photoconductive carrier OPC and the inner layer is an aluminum conductive cylindrical drum The resistance held by the drum material changes increases decreases according to the s

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