Sharp AR-168S Manuel de service Page 1

CONTENTSParts marked with “ ” are important for maintaining the safety of the machine. Be sure to replace these partswith the replacement parts specif

AR-168S/168D SPECIFICATIONS 2 - 47. RSPFOriginal capacity 30 sheets (52 to 90g/m2) (14 to 23.9 lbs.)Original size A4 to A5 / 8-1/2" x 14"

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2046 15 FAX mode density adjustment (Super fine) (Executable only when the FAX is installed.)[Function

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2146 19 Exposure mode setting (AE MODE)[Function]<γ table setting>When this test command is exec

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2246 29 Image contrast adjustment (600dpi) (GAMMA 600)[Function]Contrast is set for each mode.When thi

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2346 32 Copier color reproduction setting (COLOR REAPPEAR)[Function]Used to set color reproduction in

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2448 01 Main scan/sub scan direction magnification ratio (COPY MAG.)[Function]Used to adjust the magni

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2549 01 Download mode (DOWNLOAD MODE)[Function]When this test command is executed, "DLOWNLOAD MOD

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2650 01 Lead edge image position (LEAD EDGE)[Function]Used to adjust the copy image position and the l

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2750 06 Copy lead edge position adjustment (SPF/RSPF) (SPF/RSPF EDGE) (Disabled when set to OC)[Functi

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2850 18 Memory reverse position adjustment in duplex copy (DPLX REVERSE) (Enabled when Duplex setting

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 2951 02 Resist amount adjustment (RESIST ADJ.)[Function]Used to adjust the contact pressure of the mai

AR-168S/168D CONSUMABLE PARTS 3 - 1[3] CONSUMABLE PARTS1. Supply listA. SEC/SECL/LAGNote: Printing of the master/individual cartons is made in 2 lan

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3063 01 Shading check (SHADING CHK)[Function]Used to display the detection level of white plate for sh

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3164 01 Self print (1by2 mode) (SELF PRT.)[Function]The status of the optical section is ignored and p

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3266 03 FAX PWB memory check (Executable only when the FAX is installed.)[Function]Use to check the FA

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3366 05 Signal send mode (Soft SW set value) (Executable only when the FAX is installed.)[Function]Use

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3466 11 300bps signal send (Max. value) (Executable only when the FAX is installed.)[Function]Use to s

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3566 13 Dial test (Executable only when the FAX is installed.)[Function]Use to the dial test.[Operatio

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3666 18 DTMF signal send (Soft SW set value) (Executable only when the FAX is installed.)[Function]Use

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3766 32 Receive data check (Executable only when the FAX is installed.)[Function]Use to check the rece

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 3866 38 Time setting/check (Executable only when the FAX is installed.)[Function]Use to check the time

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 395. Trouble codesA. Trouble codes listB. Details of trouble codesMain codeSub codeDetails of troubleE

AR-168S/168D CONSUMABLE PARTS 3 - 2<Drum cartridge>The label on the drum cartridge shows the date of production.(SOCC production)(JAPAN produc

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 40E7 11 Content Shading trouble (White correction)Detail The CCD white scan level is abnormal when the

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 41L1 00 Content Feeding is not completed within the specified time after starting feeding. (The scan h

AR-168S/168D MAINTENANCE 11 - 1[11] MAINTENANCE1. Maintenance table: Check (Clean, adjust, or replace when required.) : Clean : Replace : Adjust✩: L

AR-168S/168D USER PROGRAM 12 - 1[12] USER PROGRAMThe user settings consist of the following items.1. User programsA. Copy modeProgramnumberProgram n

AR-168S/168D USER PROGRAM 12 - 2B. Print mode*1: The scanning speed increases when the USB 2.0 mode is set to "HI-SPEED", however, the pri

AR-168S/168D USER PROGRAM 12 - 32. Selecting a setting for a user program1) Press the [MENU] key and then press the [ENTER] key.In printer mode, the

AR-168S/168D ELECTRICAL SECTION 13 - 1[13] ELECTRICAL SECTION1. Block diagramA. Overall block diagramCarriage Unit OptionalCCD PWB12V 12VRegA5V 3.3V

AR-168S/168D ELECTRICAL SECTION 13 - 22. Circuit descriptionsA. Main PWB (MCU)(1) GeneralThe MCU PWB is composed of: • CPU peripheral section which

AR-168S/168D ELECTRICAL SECTION 13 - 3(3) Image process ASIC (HG73C114HF)a. GeneralThe ASIC is composed of the three blocks: the image process block

AR-168S/168D ELECTRICAL SECTION 13 - 4b. ASIC (Signal table)PIN No.Signal Name IN/OUT Connected to Description1 cpudata7 IN/OUT CPU CPU data bus2 cp

AR-168S/168D EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 1[4] EXTERNAL VIEWS AND INTERNAL STRUCTURES1. Appearance2. Internal1 Document glass 2 Operat

AR-168S/168D ELECTRICAL SECTION 13 - 592 op_clk OUT Tr array IC Operation circuit clock signal93 VCC_AC Power94 scanstop IN CPU Scan stop signal95 t

AR-168S/168D ELECTRICAL SECTION 13 - 6165 mdat00 Not used166 mdat01 Not used167 mdat02 Not used168 mdat03 Not used169 VCC_core Power170 mdat04 Not u

AR-168S/168D ELECTRICAL SECTION 13 - 7(4) Reset circuitThis circuit detects ON/OFF of the power source, and controls start/stop of each circuit. The

AR-168S/168D ELECTRICAL SECTION 13 - 8(5) Heater lamp control circuita. OutlineThe heater lamp control circuit detects the heat roller surface tempe

AR-168S/168D ELECTRICAL SECTION 13 - 9(7) Toner motor control circuitThe IC32 is the motor drive IC, which generates pseudo-AC wave-forms by the pul

AR-168S/168D ELECTRICAL SECTION 13 - 10C116820p12C117820p12C118820p12C1210.1u12C115820p12C1190.1u12R921.5kJ21R900.68J1W21R9430kJ21R9530kJ21R911.5kJ2

AR-168S/168D ELECTRICAL SECTION 13 - 11(10) OPE PWBa. OutlineThe operation circuit is composed of the LCD control circuit, the keymatrix circuit, th

AR-168S/168D ELECTRICAL SECTION 13 - 12Since the AC power is directly rectified, if there were not this rush cur-rent prevention resistor (TH001), a

AR-168S/168D CIRCUIT DIAGRAM 14 - 1[14] CIRCUIT DIAGRAM1. MCU PWBMCU PWB (CPU section)C240.1uC412pR11 10kJR50JBR2033J12348765R1811kFC2547pR2010kFBR2

AR-168S/168D CIRCUIT DIAGRAM 14 - 2C9 0.1uC14 0.1uBR810kJ12348765BR1010kJ12348765BR510kJ12348765H8S/2321P35/SCK164P34/SCK063P33/RxD162P32/RxD061P31/

AR-168S/168D EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 23. Operation panel1 [MODE SELECT] key / Mode indicatorsPress this key to select the mode. T

AR-168S/168D CIRCUIT DIAGRAM 14 - 3AABBCC4321(14-D3)(1-D2),(14-D3)(14-A3)(14-A4)(14-D3)(14-A2)(14-A2)(14-D3)(14-D3)(14-A2)(14-A2)(14-A2)(14-A2)(5-B1

AR-168S/168D CIRCUIT DIAGRAM 14 - 4CCDDEE4321(1-B3)(1-A2)(1-A2)(12-A3)(4-C3)(4-C3)(4-C3)(4-C2)(4-C2)(4-D4)(5-B1)(5-B1)(5-B1)(5-B4)(5-B4)(5-B4)(5-B3)

AR-168S/168D CIRCUIT DIAGRAM 14 - 5MCU PWB (Memory section)R48 0JC740.1uR51 0JR47 10kJIC7Flash ROMA025A124A223A322A421A520A619A718A88A97A106A115A124

AR-168S/168D CIRCUIT DIAGRAM 14 - 6C770.1uC780.1uC790.1uC800.1uC810.1uC820.1uC760.1uC399N.M.R4910kJIC6SDRAM (16bit x 4bank)A023A124A225A326A429A530A

AR-168S/168D CIRCUIT DIAGRAM 14 - 7MCU PWB (Driver section 1)IC1574LCX574D12D23D34D45D56D67D78D89CLK11OC1Q119Q218Q317Q416Q515Q614Q713Q812VCC20GND10I

AR-168S/168D CIRCUIT DIAGRAM 14 - 8R61 100JC8547pIC1674VHCT2441A121A241A361A482A1112A2132A3152A4171G12G191Y1181Y2161Y3141Y4122Y192Y272Y352Y43VCC20GN

AR-168S/168D CIRCUIT DIAGRAM 14 - 9IC25TD62064AFI13NC4NC5I26NC10I311NC12NC13GND17O12O27O39O416COM1COM8GND18I414NC15IC21KID65001AF1B12B23B34B45B56B67

AR-168S/168D CIRCUIT DIAGRAM 14 - 10R87240JR8810kJD2KDS226213IC22BKIA393F56784+-R687.5kFQ1KTA1505SIC24BKIA358F56784+-R831.2kFR714.3kFR784.7kJ1/4WR85

AR-168S/168D CIRCUIT DIAGRAM 14 - 11MCU PWB (Driver section 3)R108620JR104 2.4kJR1091.2kJR911.5kJR110100JR890.68J1WR1151kJR102750JC115820pC130OPENR9

AR-168S/168D CIRCUIT DIAGRAM 14 - 12IC30TD62064AFI13NC4NC5I26NC10I311NC12NC13GND17O12O27O39O416COM1COM8GND18I414NC15C1290.1u/50VIC28TD62064AFI13NC4N

AR-168S/168D EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 34. Motors and solenoidsNo. Part name Control signal Function / Operation1 Main motor MM Dri

AR-168S/168D CIRCUIT DIAGRAM 14 - 13MCU PWB (Noise filter/Pull-up section)C150OPENR1350.22J 2WC1760.1uC1930.1uC151OPENC1770.1uC152OPENC1650.1uC1780.

AR-168S/168D CIRCUIT DIAGRAM 14 - 14R131 1kJR13939kJR15110kJR14010kJD14KDS226213R1523.3kJC1851000pR1194.7kJD15KDS226213R1487.5kJC1861000pC1701000pD1

AR-168S/168D CIRCUIT DIAGRAM 14 - 15MCU PWB (IMC2 section 1/2)R225BR69 150JX412345678C2830.1UR235 4.7KJBR7433JX412345678BR75 33JX412345678BR114 33JX

AR-168S/168D CIRCUIT DIAGRAM 14 - 16C2690.1U5 33JC2700.1UC2570.1UL10ZJSR5101-102TAR2384.7KJC2800.1UIC39K4S561632DVSS54RAS18WE16CAS17VSS41VSS28VDD1VD

AR-168S/168D CIRCUIT DIAGRAM 14 - 17MCU PWB (IMC2 USB2.0 section 2/2)C3280.1UIC41ISP1581Vreg(RMO/RESET10EOT11DREQ12DACK13DDINT//BUS_CMORE/CS25/RD26/

AR-168S/168D CIRCUIT DIAGRAM 14 - 18R281 10KJVreg(3.3)4D-5D+6RPU7RREF8MODE19DIOR14DIOW15INTRQ16/CS117/CS018BUS_CONF19MODE020DA221READY22XTAL259XTAL1

AR-168S/168D CIRCUIT DIAGRAM 14 - 19CN1B24B-PHDSS-B113355779911111313151517171919212123232244668810101212141416161818202022222424C2080.1u/50V12C2070

AR-168S/168D CIRCUIT DIAGRAM 14 - 20C211 1000p12CN4B4B-PH-K-R11223344R16010kJ21C2051000p12R162 1kJ21C209 1000p12C210 1000p12CN228FE-BT-VK-N112233445

AR-168S/168D CIRCUIT DIAGRAM 14 - 21MCU PWB (Connector section 3)R318150J1/4WCN14B3B-PH-K-S123CN8B3B-PH-K-S123R1774.7kJC2211000pR1781kJD37KDS2262135

AR-168S/168D CIRCUIT DIAGRAM 14 - 22CN18B14B-PHDSS-B1357911132468101214C226 1000pC227 1000pC228 1000pPGND5V24VPPD3CED2PD2/CPFS2To 2nd. cassette(7-C4

AR-168S/168D EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 45. Sensors and switchesNo. Name Signal Type Function Output1 Scanner unit home position sen

AR-168S/168D CIRCUIT DIAGRAM 14 - 23MCU PWB (IEEE1284Interface section)C2440.1uC2450.1uR326OPENC233100pC232100pC231100pC230100pCN3924FMN-BTK-A123456

AR-168S/168D CIRCUIT DIAGRAM 14 - 24MCU PWB (Modem I/F Connector)C359OPENC366OPENR30610kJC363OPENC365OPENR357 N.M.C367OPENC368OPENC369OPENIC46NC7S32

AR-168S/168D CIRCUIT DIAGRAM 14 - 25MCU PWB (Scanner I/F section)R16610kJC2150.1u/50VR1651kJCN3FF4-32-S15D513579111315171921232527293124681012141618

AR-168S/168D CIRCUIT DIAGRAM 14 - 262. OPERATION PWBOPERATION PWB (LED/LCD Section)C332100pR333 100JR334 100JPMLLED311R3260JC331100pQ305KRA225S321C

AR-168S/168D CIRCUIT DIAGRAM 14 - 27OPERATION PWB (KEY / Buzzer Section)R3222kJKEY318NM4KKEY325CLKKEY309SHPKR3202kJC317OpenC320OpenC334OpenD3011SS13

AR-168S/168D CIRCUIT DIAGRAM 14 - 28OPERATION PWB (Connector Section)CN303S3B-PH-K-S123C30347uF/16vC3240.1uC30247uF/16vC30147uF/16vCN30118FE-ST-VK-

AR-168S/168D CIRCUIT DIAGRAM 14 - 293. POWER SUPPLYA12 34 5 6BCDEFGH12 34 5 6POWER SUPPLY (120V/127V)

AR-168S/168D CIRCUIT DIAGRAM 14 - 3067891011126789101112ABCDEFGH1/1

AR-168S/168D CIRCUIT DIAGRAM 14 - 314. ACTUAL WIRING DIAGRAMP-GND3.3VIN7PODHLGRID13TCGYORGYWH/BIAS/TC2HLN612PODD-GND15172CN1924VP-GND 24ORGYRDBK24VP

AR-168S/168D CIRCUIT DIAGRAM 14 - 3224Vmir24VmirD-GNDSDSWSPIDSB4B5V/SPUSSPMT-1SPMT-3SPMT-2SPMT-024V365124LEDSPPDSPPD/SPUS5VSB4BSPIDSDSWD-GND24V23211

AR-168S/168D EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 56. PWB unitNo. Name Function1 Exposure lamp inverter PWB Exposure lamp (CCFL) control2 Main

AR-168S/168D CIRCUIT DIAGRAM 14 - 33102218161239282132024176MCUPWBCN161451215411137191234567891011121314151617181920212223242625MDM_IRQPB_NAE0PB_ADD

AR-168S/168D FIRMWARE DOWNLOAD PROCEDURES 15 - 1[15] FIRMWARE DOWNLOAD PROCEDURES[Preparation]Write the download data (extension .dwl) into the main

AR-168S/168D FIRMWARE DOWNLOAD PROCEDURES 15 - 24) PC side: Check that the "Simulation Command List" tree is dis-played on the integration

AR-168S/168D FIRMWARE DOWNLOAD PROCEDURES 15 - 3Note: When another machine is connected, connect the USB cableagain and select "File" → &q

AR-168S/168D FIRMWARE DOWNLOAD PROCEDURES 15 - 47) PC side: Double-click "Special (MCU/IMC2/Facsimile)" in the maintree items to develop i

AR-168S/168D FIRMWARE DOWNLOAD PROCEDURES 15 - 57) PC side: Double-click "Special (MCU/IMC2/Facsimile)" to developits sub trees, and selec

AR-168S/168D FIRMWARE DOWNLOAD PROCEDURES 15 - 65) Select the folder which includes the maintenance tool driver(Mainte.inf) and press <OK> but

AR-168S/168D FIRMWARE DOWNLOAD PROCEDURES 15 - 75) Select [Specify a location] and press <Next> button.6) Select [Include this location in the

AR-168S/168D FIRMWARE DOWNLOAD PROCEDURES 15 - 8<Installation on Windows Me>1) Main unit side: Execute Test command No. 49-01 (Flash ROM pro-g

Memo

AR-168S/168D EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 67. Cross sectional viewNo. Part name Function and operation1 Scanner unit Illuminates the o

Memo

Memo

LEAD-FREE SOLDERThe PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder

CAUTION FOR BATTERY REPLACEMENT(Danish) ADVARSEL !Lithiumbatteri – Eksplosionsfare ved fejlagtig håndtering.Udskiftning må kun ske med batteriaf samme

COPYRIGHT © 2004 BY SHARP CORPORATIONAll rights reserved.Printed in Japan.No part of this publication may be reproduced,stored in a retrieval system,

AR-168S/168D UNPACKING AND INSTALLATION 5 - 1[5] UNPACKING AND INSTALLATION1. Copier installationImproper installation may damage the copier. Please

CAUTION This laser radiation is not a danger to the skin, but when an exact focusing of the laser beam is achievedon the eye’s retina, there is the

AR-168S/168D UNPACKING AND INSTALLATION 5 - 24. UnpackingBe sure to hold the handles on both sides of the machine to unpack themachine and carry it

AR-168S/168D UNPACKING AND INSTALLATION 5 - 39) Shake the aluminum bag to stir developer10) Supply developer from the aluminum bag to the top of the

AR-168S/168D UNPACKING AND INSTALLATION 5 - 48. Loading the paper trayNote: Make sure that the paper is not torn, is free of dust, and has nowrinkle

AR-168S/168D UNPACKING AND INSTALLATION 5 - 5A. Before Installation(1) Hardware and software requirementsCheck the following hardware and software r

AR-168S/168D UNPACKING AND INSTALLATION 5 - 68) When the "Finish" screen appears, click the "Close" button.A message will appear

AR-168S/168D UNPACKING AND INSTALLATION 5 - 711) You will return to the window of step 8). If you wish to install But-ton Manager or Sharpdesk, clic

AR-168S/168D UNPACKING AND INSTALLATION 5 - 85) When you are asked how the printer is connected, select "Con-nected to this computer" and

AR-168S/168D UNPACKING AND INSTALLATION 5 - 97) Select the printer port and whether the machine is to be used as thedefault printer, make the select

AR-168S/168D UNPACKING AND INSTALLATION 5 - 106) Select the network printer that is shared and click the "OK" button.Ask your network admi

AR-168S/168D UNPACKING AND INSTALLATION 5 - 115) Select "SC1:" from the "Scanner events" pull-down menu.6) Select "Sharp Bu

At the production line, the output powerof the scanner unit is adjusted to 0.57MILLI-WATT PLUS 20 PCTS and ismaintained constant by the operation ofth

AR-168S/168D UNPACKING AND INSTALLATION 5 - 1211. InterfaceA. USBConnector4-pin ACON UBR23-4K2200Type-B connectorCableShielded twisted pair cable(2

AR-168S/168D COPY PROCESS 6 - 1[6] COPY PROCESS1. Functional diagram(Basic operation cycle)(20 microns thick)Aluminum drum Pigment layer (0.2to 0.3

AR-168S/168D COPY PROCESS 6 - 22. Outline of print processThis printer is a non-impact printer that uses a semiconductor laserand electrostatic prin

AR-168S/168D COPY PROCESS 6 - 3Step-3: Developing (DC bias)A bias potential is applied to the MG roller in the two componentmagnetic brush developin

AR-168S/168D COPY PROCESS 6 - 4Step-7: Optical discharge (Semiconductor laser)Before the drum rotation is stopped, the semiconductor laser isradiate

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 1[7] OPERATIONAL DESCRIPTIONS1. Outline of operationThe outline of operation is described referring to the

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 22. Scanner sectionA. Scanner unitThe scanner unit in the digital copier scans images.It is composed of th

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 33. Laser unitThe image data sent from the MCU (image process circuit) is sent tothe LSU (laser unit), whe

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 4A. General descriptionGeneral block diagram (cross section)Top view(1) Heat rollerA Teflon roller is used

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 5(1) Cassette paper feed operation1) The figure below shows the positions of the pick-up roller, thepaper

CONTENTS[1] GENERAL1. Major functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12. Note for servicing an

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 6(2) Manual multi paper feed operation1) Before paper feed operation, the manual paper feed solenoid(MPFS)

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 7(3) Conditions of occurrence of paper misfeeda. When the power is turned on:PPD or POD is ON when the pow

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 87. D-D (Duplex to Duplex) mode paper/document transport (Duplex model)A. Initial stateSet duplex document

AR-168S/168D OPERATIONAL DESCRIPTIONS 7 - 9Switchback operation is made after back copying in order to dischargedocuments according to the setting.S

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 1[8] DISASSEMBLY AND ASSEMBLYThe disassembly and assembly procedures are described for the fol-lowing sect

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 25) Remove the cleaning blade.Note: Dispose the cleaning blade which was removed.6) Clean the cleaning sec

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 312) Attach the detection gear.Note:• The detection gear is not installed to the drum cartridge packedwith

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 42) Set the charger cleaner to the transfer unit, and move it recipro-cally a few times in the direction o

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 53) Remove four screws, and remove the operation cabinet.4) Remove four screws, and remove the operation P

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 68) Move the carriage to the position indicated on the figure.9) Loosen the screw which is fixing the tens

[9] ADJUSTMENTS1. Optical section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1A. Copy magnification ratio

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 74. Fusing sectionA. ListB. Disassembly procedure1) Remove the connectors (3 pcs.) of the rear cabinet.2)

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 87) Remove the plate spring on the right and remove the heater lamp.8) Remove the spring and remove the se

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 96) Remove the C-ring and the fusing bearing, and remove the heatroller.7) Remove the parts from the heat

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 105) Disconnect the connector from the MCU PWB. 6) Disengage the pawls (2 positions), and remove the senso

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 1113) Remove the flat cable and the grounding wire.14) Remove the four screws, and remove the FAX PWB unit

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 1221) Remove the parts as shown below, and remove the pressurerelease solenoid and the paper feed solenoid

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 1326) Disengage the pawl, and remove the pulley.27) Shift and remove the shifter unit.28) Remove the screw

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 1432) Remove the screw and the E-ring, and remove the PS semi-circu-lar earth plate and the PS roller unit

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 156. Manual paper feed sectionA. ListB. Disassembly procedureMulti unit1) Remove the screw and remove the

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 165) Remove three E-rings and remove the manual paper feed rollerB9.6) Remove the pick-up roller.7) Cut th

AR-168S/168D GENERAL 1 - 1[1] GENERAL1. Major functionsConfigurationsDescriptions of itemsCPM: Copy speed (Copies Per Minute)SB/MB: SB = Manual feed

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 177. Rear frame sectionA. ListB. Disassembly procedure1) Remove the rear cabinet.2) Remove the connector,

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 188. Power sectionA. ListB. Disassembly procedure1) Disconnect each connector.2) Remove the screw, and rem

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 191) Remove the belt, the paper feed frame Spring, and two harnesses.2) Remove the pickup unit.* When inst

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 201) Remove the E-ring.2) Remove the parts.D. Manual paper feed roller, pickup roller1) Lift the paper sto

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 21E. Belt1) Remove the belt.F. SPF motor1) Remove the harness.2) Remove four screws.3) Remove the drive un

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 2210.Duplex motor section (RSPF model only)A. ListB. Disassembly procedure1) Remove the rear cabinet.2) Re

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 23B. Intermediate tray1) Remove the intermediate tray.C. Upper cover1) Remove four screws from the bottom

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 24F. Sensor PWB1) Remove two screws.2) Remove the sensor PWB.3) Remove the harness.G. Pickup solenoid1) Re

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 25I. Manual paper feed roller, pickup roller(1) Remove the pickup unit.1) Lift the paper stopper.2) Slide

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 26L. Belt 21) Remove three screws.2) Remove the drive unit.3) Remove the belt.Note: When reassembling, han

AR-168S/168D SPECIFICATIONS 2 - 1[2] SPECIFICATIONS1. Basic Specifications2. Operation specificationsItemType DesktopCopy system Dry, electrostaticS

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 27(2) Remove the paper supply roller.1) Loosen the screw.2) Open the paper exit paper guide.3) Remove the

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 28(3) Remove the transport roller.1) Remove the paper exit paper guide.2) Remove the transport roller.S. P

AR-168S/168D DISASSEMBLY AND ASSEMBLY 8 - 29T. Solenoid(1) Remove the reverse gate1) Remove the ring2) Remove the reverse gateNote: When reassemblin

AR-168S/168D ADJUSTMENTS 9 - 1[9] ADJUSTMENTS1. Optical sectionA. Copy magnification ratio adjustmentThe copy magnification ratio must be adjusted i

AR-168S/168D ADJUSTMENTS 9 - 22) Set the copy magnification ratio to 100%.3) Make a copy on A4 or 81/2" x 11" paper.4) Measure the length

AR-168S/168D ADJUSTMENTS 9 - 3(Example)(2) Image rear edge void amount adjustment1) Set a scale to the rear edge section of A4 or 11" x 8 1/2&q

AR-168S/168D ADJUSTMENTS 9 - 4C. Necessary tool for copy density adjustment• One of the following test charts:UKOG-0162FCZZ, UKOG-0089CSZZ, KODAK GR

AR-168S/168D ADJUSTMENTS 9 - 53. High voltage adjustmentA. Main charger (Grid bias)Note:• Use a digital multi meter with internal resistance of 10MΩ

AR-168S/168D ADJUSTMENTS 9 - 6B. Adjusting trailing edge void in duplex copy modeThis is the adjustment of the first surface printing mode (rear end

AR-168S/168D ADJUSTMENTS 9 - 75. SPF (RSPF) scan position automatic adjustmentPlace a black chart so that it covers the SPF scan glass and the OCgla

AR-168S/168D SPECIFICATIONS 2 - 2*1) May fluctuate due to environmental conditions and the input voltage.3. Copy performanceFusing section Fusing sy

AR-168S/168D ADJUSTMENTS 9 - 87. Automatic black level correctiona. Cases when the adjustment is required1) When the main PWB is replaced.2) When th

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1[10] TEST COMMAND, TROUBLE CODES1. Entering the test command modeTo enter the serviceman test command

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 224 01 JAM total counter clear (JAM TTL CLR.)04 SPF counter clear (SPF CLR.) (Disabled when set to OC)

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 34. Descriptions of various test commandsMain codeSub codeContents Details of function/operation1 01 M

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 42 06 RSPF resist clutch operation check (RSPF RES.CHK) (Enabled only when RSPF is set.)[Function]When

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 55 01 Operation panel display check (LCD/LED CHK)[Function]<LED check mode (All ON/Individual ON)&g

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 66 01 Paper feed solenoid (CPFS1, CPFS2, MPFS) operation check (PSOL CHK)[Function]When [ENTER/START]

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 78 01 Developing bias output (DVLP BIAS SET.)[Function]When [ENTER/START] key is pressed, the developi

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 810 00 Toner motor operation (TONER MOTOR)[Function]When [ENTER/START] key is pressed, the toner motor

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 922 02 Maintenance preset display (M-CNT PRESET)[Function]The quantity (25,000 sheets, etc.) correspon

AR-168S/168D SPECIFICATIONS 2 - 34. SPLC printer*1: Engine Resolution*2: Running change5. Scan function*1: Running change6. SPFPrint speed Max. 15pp

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1022 13 CRUM type display (CRUM TYPE)[Function]When the test command is executed, the CRUM type curren

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1122 21 Scanner counter display (SCAN CNT)[Function]The scanner counter is displayed.[Operation] 22 SP

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1224 09 Printer counter clear (PRT.CLR.)[Function]When [ENTER/START] key is pressed, the printer count

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1326 02 (R)SPF setting (SPF/RSPF) [Function]When this test command is executed, the current set SPF is

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1426 30 CE mark support control ON/OFF (CE MARK)[Function]When this test command is executed, the curr

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1526 43 Side void amount setting (SIDE VOID)[Function]When this test command is executed, the currentl

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1641 06 OC cover float detection level (OC FLOAT LEVEL) (Disabled when set to OC)[Function]When this t

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1743 05 Fusing temperature setting in duplex copy (FU TEMP DPLX) (Enabled when Duplex setting is ON)[F

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1846 01 Copy density adjustment (300dpi) (EXP.LEVEL 300)[Function]Copy density is set for each mode.Wh

AR-168S/168D TEST COMMAND, TROUBLE CODES 10 - 1946 12 Density adjustment in the FAX mode (Collective adjustment) (Executable only when the FAX is in