Page 1 RICOH MV310 SERVICE MANUAL May 22nd, 1995 Subject to change...
Page 2 WARNING THIS MACHINE CONTAINS A LASER BEAM GENERATOR. LASER BEAMS CAN CAUSE PERMANENT EYE DAMAGE. DO NOT OPEN THE LASER UNIT OR LOOK ALONG THE LASER BEAM PATH WHILE THE MAIN POWER IS ON. Lithium Batteries (Memory Back-up) CAUTION The danger of explosion exists if a battery of this type is incorrectly replaced.
Page 3: Table Of Contents
Table of Contents 1. OVERALL MACHINE INFORMATION 1.1. SPECIFICATIONS ....1.2. FEATURES ..... 1.3.
Page 4 3. Scanner Position Fine Adjustment ... 2-12 2.1.5. Pick-up and Feed (ADF) ....2-13 2.1.6. Separation Mechanism (ADF) ... . 2-13 2.1.7.
Page 5 4. PM Call ..... 2-70 5. Effective Term of Service Calls ... . 2-70 2.4.
Page 6 4.1.24. Software Upload (Function 12) ... 4-14 4.1.25. SRAM Data Download (Function 12) ..4-15 4.1.26. Serial Number (Function 14) ... . 4-16 4.1.27.
Page 7 5.5.5. Hot Roller ....5-18 5.5.6. Pressure Roller ....5-20 5.5.7.
Page 8 6. TROUBLESHOOTING 6.1. COPY QUALITY TROUBLESHOOTING ..6.1.1. Blank Copies ....6.1.2. Black Copies ....6.1.3.
Page 9: Overall Machine Information
May 22nd, 1995 OVERALL MACHINE INFORMATION SPECIFICATIONS 1. OVERALL MACHINE INFORMATION Protocol 1.1. SPECIFICATIONS Group 3 with ECM Type Compression Desktop transceiver MH, MR, EFC, MMR, SSC (MMR only with Circuit ECM) PSTN, PABX Storage to SAF memory for tx: MMR and/or raw data Connection Direct couple...
Page 10 OVERALL MACHINE INFORMATION May 22nd, 1995 SPECIFICATIONS Power Consumption Standby: Minimum 2 W, Normal 70 W Transmitting: 35 W Receiving: 200 W Copying: Normal 300 W, Maximum 800 W Operating Environment Temperature: 17 - 28 °C [63 - 82 °F] Humidity: 40 - 70 %Rh Dimensions (W x D x H) 555 x 555 x 342 mm [21.9 x 21.9 x 13.5 ins]...
Page 11: Features
May 22nd, 1995 OVERALL MACHINE INFORMATION FEATURES 1.2. FEATURES Communication Features - User Selectable KEY: O = Used, X = Not Used Auto dialing (pulse or DTMF) A = With optional 100 sheet cassette only Auto Document B = With optional counter only Auto image density selection C = With optional handset only Automatic Voice Message...
Page 12 OVERALL MACHINE INFORMATION May 22nd, 1995 FEATURES Communication Features - Other User Features User Selectable Clearing a memory file Silent ringing detection Clearing a polling file Specified Image Area Clock Speed Dial (50 stations) Confidential ID Super Fine Resolution Copy mode (16 x15.4 l/mm : 400 x 400 dpi) Copy Mode Restriction Telephone Directory...
Page 13 May 22nd, 1995 OVERALL MACHINE INFORMATION FEATURES Reports - Automatic Service Mode Features Charge Control Report File Transfer Communication Failure Report Hex Dump List Confidential File Report LCD contrast adjustment Error Report Line error mark Memory Storage Report Memory file printout (all files) Mode Change Report Modem test Polling Clear Report...
Page 14: Component Layout
OVERALL MACHINE INFORMATION May 22nd, 1995 COMPONENT LAYOUT 1.3. COMPONENT LAYOUT 1.3.1. Mechanical Components 15 16 17 10 11 12 H521V501.wmf Name Description Scanner Contains a contact image sensor and a xenon lamp driver. R1 Roller Feeds the document through the scanner. R0 Roller Feeds the document into the scanner.
Page 15 May 22nd, 1995 OVERALL MACHINE INFORMATION COMPONENT LAYOUT Name Description Toner Supply Bar This stirs up and transfers toner to the toner application roller. Toner Application Roller This roller transfers toner to the development roller. Development Roller This roller applies toner to the latent image on the drum. Platen Cover This covers the original which was placed on the exposure glass.
Page 16: Electrical Components
OVERALL MACHINE INFORMATION May 22nd, 1995 COMPONENT LAYOUT 1.3.2. Electrical Components H521V503.wmf H521V504.WMF...
Page 17: Pcbs
May 22nd, 1995 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 1. PCBs Name Description FDU (Facsimile Driver This board contains drivers for the motors, a dc-dc Unit) converter, the energy saving mode cpu, and other drive electronics. FCE (Facsimile Control This board controls the machine. It contains the main Engine) cpu, flash ROM, system RAM, and so on.
Page 18: Sensors
OVERALL MACHINE INFORMATION May 22nd, 1995 COMPONENT LAYOUT 3. Sensors Name Description Document Sensor This detects the presence of a document in the feeder. Scan Line Sensor This detects when a page is approaching the auto shading position. Document Width Sensor This detects when a B4 width [10.1"] document has been placed in the feeder.
Page 19: Others
May 22nd, 1995 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 5. Others Name Description Stamper Ass’y This stamps a red circle on each page that is successfully fed through the scanner. Thermostat This interrupts the ac power supply to the fusing lamp if the temperature of the thermostat surface exceeds 400°C.
Page 20: Options
OVERALL MACHINE INFORMATION May 22nd, 1995 COMPONENT LAYOUT 6. Options H521V505.wmf Name Description Printer Interface This allows the machine to be connected to a computer as a laser printer. RS232C Interface Board* This allows the machine to be connected to a computer as an external fax device for example.
Page 21: Overall Machine Control
May 22nd, 1995 OVERALL MACHINE INFORMATION OVERALL MACHINE CONTROL 1.4. OVERALL MACHINE CONTROL Optional RS232C I/F Page DRAM Memory System ECM/SAF Page Memory Memory System System Optional Video 100 Sheet SRAM (Flash) (SRAM) Cassette DATA/ADDRESS BUS LDDR DMAC PRIF Energy Optional Saver Printer I/F...
Page 22: Video Data Path
OVERALL MACHINE INFORMATION May 22nd, 1995 VIDEO DATA PATH 1.5. VIDEO DATA PATH 1.5.1. Transmission Original Contact Image Sensor Assembly Image Sensor Xenon Lamp Amplifier Video FCIP Processing Memory Amplifier DATA/ADDRESS BUS DRAM Attenuator Line ECM/ Buffer /FIFO Memory Memory DIP: Digital Image Processor DCR: Data Compression and Reduction MDM: Modem...
Page 23: Reception
May 22nd, 1995 OVERALL MACHINE INFORMATION VIDEO DATA PATH 1.5.2. Reception MDM: Modem DCR: Data Compression and Reduction LIF: Laser Interface H521V508.wmf Data from the line passes to the modem through the NCU and hybrid IC. Af- ter the modem demodulates the data, the data passes to the DCR block, through either the FIFO or the ECM memory, where the data is decom- pressed to raster image data.
Page 24: Copying
OVERALL MACHINE INFORMATION May 22nd, 1995 VIDEO DATA PATH 1.5.3. Copying DIP: Digital Image Processor DCR: Data Compression and Reduction H521V509.wmf] LIF: Laser Interface The scanned data passes to the page memory after video processing in the DIP block. After a page of data has been stored in the page memory, the data is sent to the LDDR through the LIF block.
Page 25 May 22nd, 1995 OVERALL MACHINE INFORMATION VIDEO DATA PATH Reduction and Enlargement The reduction/enlargement process Scanner is done in two steps, one at the scan- ner, and the other at the printer. Page Memory At the scanner, the machine changes Original the motor speed to get a reduced/en- larged image in the sub-scan...
Page 26: Printing Using The Optional Printer Interface
OVERALL MACHINE INFORMATION May 22nd, 1995 VIDEO DATA PATH 1.5.4. Printing using the Optional Printer Interface PRIF: Printer Interface LIF: Laser Interface Optional Printer Interface PRIF FCIP LDDR Copy Paper H521v512.wmf After a page of data has been stored in the printer interface’s page memory, the data is sent directly to the LIF through the PRIF (Printer Interface) block.
Page 27: Power Distribution
May 22nd, 1995 OVERALL MACHINE INFORMATION POWER DISTRIBUTION 1.6. POWER DISTRIBUTION 1.6.1. Distribution Diagram Optional 100 Optional Optional Optional Sheet Card Counter Printer I/F RS232C I/F Cassette +12VP +24V +24VM +24VD +5VD +24VM Motors +12VD +5VBAT +24VD Feed Clutch +5VD Main Power +24VD...
Page 28: Memory Back-Up Circuit
OVERALL MACHINE INFORMATION May 22nd, 1995 POWER DISTRIBUTION 1.6.2. Memory Back-up Circuit 1VDET Page POWERS Memory Switching FCIP Circuit 5RTCCS 1SAFFG DRAM System +5VD CN1-96 +5VE +5VD +5VBAT DC/DC Converter [IC12] H521V511.wmf The +5VBAT supply from the lithium battery [A] backs up the system RAM which contains system parameters and programmed telephone numbers, and the real time clock in the main cpu.
Page 29: Detailed Section Descriptions
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2. DETAILED SECTION DESCRIPTIONS 2.1. SCANNER 2.1.1. Overview 1. Book Scanner H521D011.wmf The scanner motor [A] drives the scanner [B] through the timing belt [C] and drive wire [D]. The shaft [E] guides scanner movement in the sub-scan direc- tion.
Page 30: Adf
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER 2. ADF H521D008.wmf The sheet through type ADF feeds the document from the top page of the document stack on the table. The pick-up [A] and feed roller [B] feed the original into the scanner, and the separation roller [C] helps to feed one sheet at a time.
Page 31: Original Detection
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2.1.2. Original Detection 1. Book Scanner Original Width Sensor B5 Sideways 224.4 Legal A4/Letter 192.9 A5/Half Letter Original Length Sensor 306.2 H521D502.wmf The original width and length sensors each have two sets of photoemitter and receiver.
Page 32 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER Notes 1. The setting of System Switch 0D determines which paper size is detected (USA standard or ISO standard) for each sensor output combination. However, changing a setting will cause some copier functions to not work correctly.
Page 33: Adf
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2. ADF H521D006.wmf When using the ADF, the machine can only detect the document width. Un- like a copier’s ADF, the machine cannot detect the document length, because there is no length sensor. As a result, the following copier functions cannot be used when using the ADF, since these functions require the document length before proceeding.
Page 34: Scanning
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER 2.1.3. Scanning 1. Contact Image Sensor H521D512.wmf The contact image sensor (CIS) assembly [A] consists of an exposure glass [B], a roof mirror lens array [C], a xenon lamp [D], and an image sensor [E]. The CIS moves under the exposure glass when scanning a book original, or stays at the ADF scan line when scanning a sheet original using the ADF.
Page 35: Main Scan Resolution And Width (Book Scanner)
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2. Main Scan Resolution and Width (Book Scanner) Fax Mode B4 (256 mm/10.1" width) Original The machine scans 256 mm (10.1") width at 16 dot/mm resolution, then convert it into 8 dots/mm resolution before transmission. A4 (210 mm/8.3")/ Letter (216 mm/8.5") Original The machine scans either 216 mm (8.5") or 210 mm (8.3") width at 16 dot/mm resolution, depending on the settings of System Switch 0D bits 0 to...
Page 36: Main Scan Resolution And Width (Adf)
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER 3. Main Scan Resolution and Width (ADF) Fax Mode • The machine scans either 216 mm (A4/Letter) or 256 mm (B4) at 16 dot/mm resolution, depending on the document width detected. Then each line is converted into 8 dot/mm resolution before transmission. Copy Mode •...
Page 37: Sub Scan Resolution Conversion
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 6. Sub Scan Resolution Conversion Since the scanner always scans at 15.4 line/mm resolution, sub scan resolu- tion has to be converted when transmitting to a terminal which is not capable of higher resolutions. Standard: The first and third lines in each four-line group are OR processed for transmission.
Page 38: Drive Mechanism
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER 2.1.4. Drive Mechanism 1. Book Scanner H521D012.wmf The book scanner motor [A] drives the scanner [B] through the timing belt [C] and drive wire [D]. The scanner moves along the guide shaft [E]. The spring [F] pushes up the contact image sensor [G] to the exposure glass, so that the distance from the image sensor to the exposure glass surface is constant during scanning.
Page 39 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2. ADF H521D005.wmf The ADF motor [A] drives the pick-up roller [B], the feed roller [C], the R0 roller [D], the R1 roller [E], and the R2 roller [F]. The motor speed varies in the same way that the book scanner motor does (see the previous page).
Page 40: Book Scanner
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER 3. Scanner Position Fine Adjustment Shading Plate ADF Scan Line Scanner at Home Position Exposure Glass 54mm H521D521.wmf Two square black marks [A] and [B] (2 x 2 mm) are used to move the scanner to the exact scan start position.
Page 41: Pick-Up And Feed (Adf)
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2.1.5. Pick-up and Feed (ADF) H521D007.wmf H521D009.wmf When the ADF motor starts, the mechanical clutch [A] moves the pick-up roller [B] down to the document. Then, the machine feeds the top page of the document.
Page 42: Stamping (Adf)
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER 2.1.7. Stamping (ADF) H521D010.wmf The machine always stops feeding at the stamping position. If the Stamp LED is turned on, the machine activates the stamper solenoid [A] for 500 ms after the page was transmitted (immediate transmission) or stored (memory transmission) successfully.
Page 43: Error Conditions
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2.1.8. Error Conditions 1. Book Scanner The main cpu detects an error if one of the following conditions occurs. Condition Description Error Code The scanner did not detect the black mark at scanning start position correction. The machine Black mark not detected 1-09 does not stop scanning even if this error was...
Page 44 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER Jam Condition Description Error Code When the final page of the document has been fed out of the scanner, or when a jammed No error Error during feed-out document has been removed, the ADF motor code reverses.
Page 45: Video Processing
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2.1.9. Video Processing 1. Analog Signal Processing Original Contact Image Sensor Assembly Image Sensor Xenon Lamp Analog data Amplifier Binary data FCIP Video SRAM (VRAM) H521D519.wmf The analog video signal from the contact image sensor assembly is amplified in the FDU, then transferred to the DIP (Digital Image Processor) inside the FCIP.
Page 46: Digital Video Processing Steps
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER 2. Digital Video Processing Steps Overview From Image Sensor From thermistor Multiplexer Analog A/D Conversion Video Signal Correction -Auto Shading (all-black and all-white signal correction) Digital -Peak Hold Scanner Position Fine Adjustment HALFTONE RESOLUTION Start scanning CONVERSION Standard resolution...
Page 47 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER Details Cross-reference Group 3 Facsimile Manual: section 2-3 The DIP carries out the following image processing on the data (refer to the flow chart on the previous page). Sampling Clock Selection Scanner Lamp ON Scanner Lamp OFF Clock 0 Clock 1...
Page 48 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER Preliminary Processing 1. A/D conversion • The multiplexer selects the data from the image sensor, then the DIP converts this to an 8- bit digital signal. 2. Video signal correction • The image sensor corrects for the gound level and amplification ratio by itself.
Page 49 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SCANNER H521D522.wmf • If an element after being converted to white or black by the above thre- sholding is irregular against the surrounded pixels, it is output in the op- posite color. The central pixel is compared with the surrounding eight pixels to determine whether this process is necessary.
Page 50: Video Processing Parameters
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SCANNER 3. Halftone process • The data is converted to six-bit (0 - 63) for halftone processing. In addi- tion, if error diffusion was selected, each element is corrected using the differences between it and the surrounding elements. This process re- duces the differences in contrast between light and dark areas of a half- tone image.
Page 51: Printing
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2.2. PRINTING 2.2.1. Printing Process - Overview H521D637.wmf This machine uses a "write to black" system, using negative toner. • The charge corona wire gives the drum surface a negative charge of -750 V. •...
Page 52: Opc Drum
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING 2.2.2. OPC Drum H521D604.wmf An organic photoconductor drum [A] is used in this machine. The diameter of the drum is 30 mm. It is driven by the main motor [B] through a gear train. The toner application roller [C], development roller [D], and transfer roller [E] are also driven by the same gear train.
Page 53 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING Charger Leak Detection: The machine detects a charger leak error when the FDU CN21-8 stays low for 3 seconds or more (6 seconds or more at power on) either while in standby mode or while the corona wire is being charged. When this occurs, the machine warns the customer by lighting the Call Service indicator (error code 9-17).
Page 54: Laser Exposure
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING 2.2.4. Laser Exposure H521D606.wmf 1. Overview The components of the laser section are the same as those described in the section 4-3-3 of the Group 3 Facsimile manual. The drum [A] is positioned in the same plane as the laser unit, so there is no mirror to change the optical path.
Page 55: Block Diagram
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2. Block Diagram Laser Synch Laser Detector Synch Detector Circuit LDDR 1-37 LD Enable Laser 26-6 1-36 FCIP DATA Diode 26-4 1-40 Controller Control 26-2 1-91 Mirror Motor Lock Laser 14-4 1-11 Hexagonal Diode Mirror Mirror Motor Enable...
Page 56: Print Density Adjustment
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING 4. Print Density Adjustment The FCIP controls print image density by changing the laser pulse width to adjust the width of the dots across the page. The beam strength is not ad- justed in this model. The following table shows the relationship between the pulse width and the image density.
Page 57: Toner Saving Mode
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 6. Toner Saving Mode In this machine, toner saving is done by reducing the number of dots actually printed, not by varying the development bias. In toner saving mode, the im- age data is filtered through the following four-line matrix. 1st line 1 0 1 0 1 0 1 0 1 0 .
Page 58: Toner Supply
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING 2.2.5. Toner Supply H521D617.wmf This machine uses monocomponent toner, which is composed of resin and ferrite. The toner mixing bar [A] stirs and carries toner to the toner supply roller [B]. The toner supply roller supplies toner to the development unit. The main motor [C] drives the toner supply mechanism through a gear train.
Page 59 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING Initial Toner Supply Mode When the first CTM is installed in a new machine, the machine automatically supplies toner to the development unit for 90 seconds. This will also be done automatically after a RAM reset level 1 or 2 is performed. Initial toner supply mode must also be executed by a technician when the de- velopment unit is replaced.
Page 60 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Toner End Detection H521D624.wmf Toner near-end is detected by the toner end sensor [A], which is located be- low the toner tank. Toner Tank Toner End Sensor 7-10 1-90 H521D660.wmf While the main motor is rotating, the machine detects toner end by the volt- age output from the toner end sensor .
Page 61: Development
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.6. Development H521D616.wmf Overview There are two development rollers in the development unit: the Toner Applica- tion Roller and the Development Roller. The toner supply bar [A] stirs and carries toner to the toner application roller [B].
Page 62 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Development Bias H521D618.wmf H521D619.wmf The power pack [A] applies one bias voltage to the toner application roller [B], toner metering blade [C], and bias brush [D], and a different voltage to the de- velopment roller [E].
Page 63 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING Bias Control (After Each Page) After each page, the machine re- moves toner from the development Drum roller and returns it to the develop- - 750 V ment unit. To do this, -400V is applied to the development roller, - 400V Development...
Page 64 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Bias Control (Other) At the start and the end of any print process (including the cleaning and initial toner supply modes), -50 ± 50 V is applied to the toner application roller, and +250 ±...
Page 65 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING Bias Control Circuit Bias 0 Toner Application 21-6 1-44 Roller Bias 1 Power 21-7 1-45 Development Power Pack Transfer 0 Roller Pack 21-4 1-83 Driver Transfer 1 21-5 1-87 Transfer Roller H521D652.wmf The cpu controls the voltages to the toner application and development roll- ers using the Bias 0 and Bias 1 signals as shown in the following table.
Page 66: Paper Feed
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING 2.2.7. Paper Feed 1. Overview H521D015.wmf The standard cassette [A] holds 250 sheets and the bypass feed slot [B] feeds 1 sheet at a time. The bypass feed slot can only be used in copy mode. An optional 100 sheet cassette can be fitted into cavity [C].
Page 67: Paper Lift Mechanism
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2. Paper Lift Mechanism Standard and Optional 100 Sheet Cassette H521D609.wmf H521D016.wmf When the cassette is closed after paper is loaded, the slide lock [A] is pushed by the projection [B] and comes off the bottom hook [C]. Once the slide lock comes off, the bottom plate is raised by the pressure springs and the top sheet pushes up against the corner separators [D].
Page 68: Paper Size And Paper End Detection
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING 3. Paper Size and Paper End Detection Standard Cassette/Optional Universal Cassette The paper size detector [A] is located at the front of the cassette. The machine determines which size cassette is installed by monitoring three microswitches.
Page 69 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING Bypass Feed Slot This machine does not detect paper width when the bypass feed slot is used. The maximum feed length for bypass feed is 600 mm. The minimum feedable paper size is 100 mm (width) and 148 mm (length). Optional 100 Sheet Cassette The paper size detector [A] is located at the left hand side of the 100 sheet...
Page 70: Pick-Up And Separation
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING 4. Pick-up and Separation Standard and Optional 100 Sheet Cassettes The pick-up and separation mechanism is a corner separator type. Cross-reference Group 3 Facsimile Manual: section 4-5-4 The paper feed motor starts to rotate when the printer is ready for printing. By-pass Feed Slot There is no pick-up or separation system in the by-pass feed slot.
Page 71 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING Bypass Feed Slot H521D019.wmf When a sheet of paper is placed in the bypass feed slot, the bypass feed sen- sor is turned on. The machine turns the paper feed motor counter-clockwise to prefeed the paper until the registration sensor [A] is turned on, or for 1 sec- ond, whichever is first.
Page 72 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Optional 100 Sheet Cassette H521D614.wmf When the machine feeds a sheet of paper from the 100 sheet cassette, the paper feed motor [A] turns counter-clockwise to drive the paper feed rollers [B] and the registration roller [C] as shown in the diagram. The paper feed clutch [D] ensures that the paper feed roller rotates only once for each sheet of paper.
Page 73: Registration
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.8. Registration H521D017.wmf The registration sensor [A] is positioned above the registration roller [B]. When a cassette (Standard, Universal, or 100 Sheet Cassette) is used, the machine stops the paper feed motor for a few moments when the registration sensor is turned on.
Page 74 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Jam Detection Condition Error Code When the When the registration sensor is not turned on within 9-07 standard 2.0 seconds of the paper feed clutch turning on. cassette is used When the When the paper feed out sensor is not turned on standard, 100 within 2.6 seconds after the paper feed motor starts to 9-08...
Page 75: Transfer And Separation
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.9. Transfer and Separation H521D620.wmf Instead of using a transfer corona wire, this machine uses a transfer roller, which touches the drum surface. A constant current of +5 ± 0.2 µA is applied to the transfer roller [A] from the power pack [B].
Page 76 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Cleaning Mode If the paper size is smaller than the printed image, or if a paper jam occurs during printing, toner may be transferred to the the roller surface. To prevent this toner from transferring to the back side of copies, the transfer roller has to be cleaned before the next printing run.
Page 77 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING Timing Chart: Cleaning Mode Main Motor 0.270 Charge 0.02 Toner Application Roller -50V -700V +250V Development Roller -400V 0.75 0.67 5 (Bypass feed: 6.5) +5µA Transfer Roller -1000V Quenching Lamp H521D663.wmf Before cleaning starts, the main motor, charge corona, and quenching lamp turn on.
Page 78: Cleaning
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING 2.2.10. Cleaning The cleaning unit and the used toner tank are contained in the CTM. The cleaning blade [A] removes any toner remaining on the drum after the im- age is transferred to the paper. A magnetic roller [B] then brings the toner into the used toner tank [D].
Page 79: Fusing
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.11. Fusing Fusing Lamp Control When the main switch is turned on, the machine turns on the fusing lamp and raises the fusing temperature to 80 °C in about 6 s. For printing, the ma- chine raises the fusing temperature to 185 °C.
Page 80 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Fusing Control Comparator 25-1 Thermistor Max 1-51 Thermistor Thermistor Temp 1-69 25-2 Intial Detect ON/ 1-17 Heat On 1-52 Heat Enable 1-78 12-1 12-2 Fusing Lamp * The thermofuse is not Thermofuse Thermostat used in USA models.
Page 81 May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING Fusing Unit Drive H521D622.wmf The main motor [A] drives the fusing unit through a gear train. The paper feed-out sensor [B] detects when the paper is fed out of the unit. Jam Detection - Paper Feed Out The machine detects a paper jam when the paper feed out sensor is not turned off within X seconds or more after it is turned on (error Code 9-09).
Page 82: Service Call Conditions
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Service Call Conditions Error Code Conditions (9-22) At power on If there is any problem with the thermistor. Sub-code 09 (This detection is also done when the machine comes back to the normal mode from the Power Saver Mode Level 2.) If the fusing temperature stays below 80 °C for more Standby mode...
Page 83: Page Separation And Data Reduction
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.12. Page Separation and Data Reduction Incoming pages that are only slightly longer than the copy paper may be re- duced in the sub-scan direction. Whether or not this happens depends on the settings of printer bit switches 04 and 05.
Page 84 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PRINTING Incoming pages that are longer than the maximum length will not be reduced, but will be printed on two pages and treated in accordance with the setting of bit 1 of bit printer switch 00. If this bit is 1, the bottom few lines of the page will continue from where the first page left off.
Page 85: Paper Size Selection
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.13. Paper Size Selection If there is an optional cassette installed in the machine, the paper size to use is decided in accordance with the following rules. • If both cassettes contain the same paper size, the 100 sheet cassette will be used.
Page 86: System Features
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SYSTEM FEATURES 2.3. SYSTEM FEATURES 2.3.1. Power Saver Modes +5VV Contact Image +24VM Sensor +5VE +5VV DC/DC Converter Q2, Q3 and Q14 (+24/+5V) WAKEUP +24VD +5VE Ring AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA...
Page 87: Going Into A Power Saver Mode
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SYSTEM FEATURES 1. Going into a Power Saver Mode The flow chart on the next page explains how the machine goes into a power saver mode, depending on parameter settings and other machine conditions. Entering Power Saver Mode from Standby - Power Saver Timer - When the power saver timer expires since the last time a condition #1...
Page 88 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SYSTEM FEATURES Standby Mode System SW 0B Unlimited Bit 2,3 T=1, 3, or 5 minutes Other Key pressed Original detected Timer=T Handset off-hook Condition If key was pressed in the above condition. Power Saver Power Saver Machine is in operation.
Page 89: Going Into Level 2 Mode From Level 1 Mode
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SYSTEM FEATURES 2. Going into Level 2 Mode from Level 1 Mode The flow chart on the next page shows in more detail how the machine goes from Power Saver Mode Level 1 to Level 2. The machine will not go into Level 2 power saver mode if one of the following conditions exists.
Page 90 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SYSTEM FEATURES Power Saver Mode Level 1 LCD=OFF LED=OFF Fusing=User SW 05 Setting Main CPU=ON Power Saver CPU=OFF System SW 0B Bit 2,3 T=1, 3, or 5 minutes Tx file in Timer=T memory ? Tx time ? Timer=0 User SW 05...
Page 91: Receiving A Fax Message In Power Saver Mode
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SYSTEM FEATURES 3. Receiving a Fax Message in Power Saver Mode The flow chart on the next page explains how the machine receives a fax message while it is in a power saver mode. Ring Detection While the machine is in a power saver mode, the power saver CPU monitors ringing signals from the line.
Page 92 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SYSTEM FEATURES Power Saver Mode Power Saver Mode Level 2 Level 1 LCD=OFF LCD=OFF LED=OFF LED=OFF Fusing=OFF Fusing=User SW 05 Setting Main CPU=OFF Main CPU=ON Power Saver CPU=ON Power Saver CPU=OFF Ring Detection Power Saver Mode Level 0 LCD=OFF LED=OFF...
Page 93: Sending A Fax Message Or Copying In Power Saver Mode
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SYSTEM FEATURES 4. Sending a Fax Message or Copying in Power Saver Mode The flow chart on the next page explains how the machine wakes up from power saver mode upon a manual operation, and how it comes back to a power saver mode.
Page 94 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SYSTEM FEATURES Power Saver Mode Power Saver Mode Level 2 Level 1 LCD=OFF LCD=OFF LED=OFF LED=OFF Fusing=OFF Fusing=User SW 05 Setting Main CPU=OFF Main CPU=ON Power Saver CPU=ON Power Saver CPU=OFF Condition #1 Power Saver key pressed Document set in ADF NCU off-hook Normal Mode...
Page 95: Automatic Service Calls
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SYSTEM FEATURES 2.3.2. Automatic Service Calls 1. Service Call Conditions The machine makes an automatic service call when one of the following con- ditions occurs. Sub-code Service Call Conditions Error Code (8003B5H) Charge corona unit failure 9-17 11 or 12 Laser diode failure...
Page 96: Excessive Jam Alarms
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SYSTEM FEATURES 2. Excessive Jam Alarms CALL Threshold (=6) Decrement Reset to Decrement zero NO-JAM1 DEC Threshold (=16) 16 pages fed without jam 16 pages fed without jam 16 pages fed without jam NO-JAM2 CLR Threshold (=48) 48 pages fed without jam H521D635.WMF...
Page 97: Periodic Service Call
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS SYSTEM FEATURES Address (H) Initial Sys. Para. Parameters Settings List Printer DEC (1 - 255; 0 = Disabled) 8001DD 8001E1 10 (H) CALL (3 - 15; 0 = Disabled) 8001DE 8001E2 06 (H) (Low) 8001DF 8001E3 30 (H)
Page 98: Pm Call
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 SYSTEM FEATURES 4. PM Call If PM call is enabled, the machine will make an automatic service call when the PM counter reaches the PM threshold. Program the PM call interval at the following RAM addresses. (Default setting: 60,000 sheets) Address (H) Bits 7 - 4...
Page 99: Pcbs
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PCBs 2.4. PCBs 2.4.1. FCE +12VP Flash ROM DRAM Video SRAM SRAM (512kB) (1024kB) (8kB) (32kB) DATA/ADDRESS BUS Battery 29.952MHz FCIP 32.768kHz IC Page Memory Card RS232C Interface (Optional) h521d630.wmf 1. FCIP (Facsimile Controller and Image Processor) •...
Page 100 DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PCBs 3. DRAM • 1024 kB DRAM shared between the Line Buffer (32 kB), ECM Buffer (64 kB or 128 kB), Page Memory (3 MB), and SAF memory (576 kB). • Backed up by the battery on the FDU. 4.
Page 101: Fdu
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PCBs 2.4.2. FDU Main Motor Video I/F Printer Clutches TX Motor Power Saver External IO MFPD Solenoids Paper Feed Motor +24VD +24VM Flash ROM Sensors Boot Block Overwrite ON/OFF Serial I/F +24V Interlock Sw. +12VP Fusing ON/OFF...
Page 102: Psu
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PCBs 6. Interlock Switches • The fusing unit interlock switch (+24V) disables the power supply to the drive components and the power pack. • The fusing unit interlock switch (+5V) disables the power supply to the laser diode unit.
Page 103: Ncu (Usa)
May 22nd, 1995 DETAILED SECTION DESCRIPTIONS PCBs 2.4.4. NCU (USA) OHDISW TRXD RING Current Sensor OHDISW Hook0 Hook1 ExRing Ring Detect Ext. Tel DP/Off-Hook ExDI Detection Relay h521d633.wmf 1. Jumpers Item Description These jumpers should be shorted when the machine is connected to a dry line.
Page 104: Ncu (Europe/Asia)
DETAILED SECTION DESCRIPTIONS May 22nd, 1995 PCBs 2.4.5. NCU (Europe/Asia) SHUNT CML Relay Filter (16Hz) DO Sw. RING TRXD Current Sensor Loop Closure Circuit OHDI Sw. JP24 DOSW OHDISW GS Sw. CMLSW Hook0 Hook1 SHUNT GSSW CSEL0 Ring CSEL1 RING Detection RSEL Circuit...
Page 105: Installation
May 22nd, 1995 INSTALLATION INSTALLING THE MACHINE 3. INSTALLATION 3.1. INSTALLING THE MACHINE Refer to the Operator’s Manual for the installation environment and how to in- stall and set up the machine. Note: The red clip [A] (P/N H5211161) prevents the scan- ner from moving during transportation.
Page 106: Optional Units
INSTALLATION May 22nd, 1995 OPTIONAL UNITS 3.3. OPTIONAL UNITS CAUTION Before installing an optional unit, do the following. 1. Print out all the messages stored in the memory. 2. Print out the lists of user programmed items and the system parameter list.
Page 107: Printer Interface
May 22nd, 1995 INSTALLATION OPTIONAL UNITS 3.3.2. Printer Interface H144i501.wmf Remove the NCU cover [A] (1 screw) and the left cover [B] (2 screws). H144i502.wmf Cut off the shaded parts of the left cover. H144i504.wmf Put back the left cover [B] (2 screws) and the NCU cover [A] (1 screw).
Page 108 INSTALLATION May 22nd, 1995 OPTIONAL UNITS H144i505.wmf Connect the harness [E] to the FDU, and hook up the printer interface unit [F] to the machine. H144i506.wmf Secure the unit with two screws, and in- stall the side covers [G] and [H]. After installing the interface unit, do the following: •...
Page 109: Service Tables And Procedures
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4. SERVICE TABLES AND PROCEDURES 4.1. SERVICE LEVEL FUNCTIONS In this section, frequently used keys are referred to with the following symbols. - Start key - Stop key - Function key - Yes key - No key - Up arrow key...
Page 110: System Parameter List (Function 02)
SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE LEVEL FUNCTIONS 5. Either: • Adjust more bit switches - go to step 3. • Finish - 4.1.2. System Parameter List (Function 02) FUNCTION KPAD/NEXT then immedi- SERVICE FUNCTIONS ately 3. Finish: 4.1.3.
Page 111: Protocol Dump (Function 05)
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.5. Protocol Dump (Function 05) FUNCTION KPAD/NEXT then immedi- SERVICE FUNCTIONS ately START PROTOCOL DUMP 4. Finish: 4.1.6. RAM Display/Rewrite (Function 06) FUNCTION KPAD/NEXT then immedi- SERVICE FUNCTIONS ately 0-MEM.R/W 1-MEM.DUMP ADDRESS = 000000 DATA = 00...
Page 112: Ram Dump (Function 06)
SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE LEVEL FUNCTIONS 4.1.7. RAM Dump (Function 06) FUNCTION KPAD/NEXT then immedi- SERVICE FUNCTIONS ately 0-MEM.R/W 1-MEM.DUMP MEMORY DUMP START/N ADD.000000 - 0000FF 4. Enter the first four digits of the start and MEMORY DUMP START/N end addresses .
Page 113: Ncu Parameters (Function 08)
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS (To see the transmitted and received page SCAN 012345 PRINT 012345 counters, press S.JAM: 000000 To see the printer and scanner jam count- P.JAM: 000000 ers, then press again.) PM COUNTER: 001234 Check the PM counter - press CTM COUNTER: 001234...
Page 114: Modem Test (Function 08)
SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE LEVEL FUNCTIONS 4.1.10. Modem Test (Function 08) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-NCU 1-MODEM 2-DTMF 3-DETECT MODEM TEST START/<> 14400BPS 4. Scroll through the available tests using 6. To stop the test: 7.
Page 115: Modem Detection Test (Function 08)
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.12. Modem Detection Test (Function 08) Note: This function can be used only when G3 bit switch 0B bit 5 (French PTT requirements) is 1 in European models. It cannot be used in USA models.
Page 116: Operation Panel Test (Function 09)
SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE LEVEL FUNCTIONS 4.1.14. Operation Panel Test (Function 09) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LED/LCD 5. To stop the test, press 6. To finish: 4.1.15. LED Array Test (Function 10) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LAMP...
Page 117: Adf Test (Function 10)
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.16. ADF Test (Function 10) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LAMP 1-ADF 2-BOOK 3-SELECT START 4. Place a document in the feeder, then press All sheets in the ADF will be fed. 5.
Page 118: Auto Paper Select Mode Test (Function 10)
SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE LEVEL FUNCTIONS 4.1.18. Auto Paper Select Mode Test (Function 10) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LAMP 1-ADF 2-BOOK 3-SELECT START STOP 4. Press 00000100 The current output of the document size sensors is displayed. First four digits: Not used 5th digit: W1 6th digit: W2...
Page 119: Printer Test Patterns (Function 11)
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS STOP 4. Press VIDEO Five numbers are displayed on the bottom line of the LCD. • AAA: Sensor output while the lamp is on. This should be between 160 and 225. •...
Page 120: Printer Mechanism Test - Free Run (Function 11)
SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE LEVEL FUNCTIONS 4.1.21. Printer Mechanism Test - Free Run (Function 11) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-PATTERN 1-MECH START MECH 5. To stop the test, press 6. To finish: 4.1.22. RAM Tests (Function 12) FUNCTION KPAD/NEXT SERVICE FUNCTIONS...
Page 121: Software Download (Function 12)
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.23. Software Download (Function 12) Instead of replacing an EPROM to update the machine’s software, use this procedure to update the software in the machine’s Flash ROM. This function copies new software from an external medium to the Flash ROM on the machine’s FCE.
Page 122: Software Upload (Function 12)
SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE LEVEL FUNCTIONS If the software is successfully downloaded, the display shows "OK". OK!! COPY MACH <- FLROM If the software download fails, the display shows "NG". NG!! COPY MACH <- FLROM 8. To finish, 9.
Page 123: Sram Data Download (Function 12)
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-SRAM 1-SAF 2-SAFCARD 3-M->R OK!! COPY MACH -> FLROM If the software is successfully uploaded, the display shows "OK". NG!! If the software upload fails, the display COPY MACH ->...
Page 124: Serial Number (Function 14)
SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE LEVEL FUNCTIONS OK!! COPY MACH <- SRAM If the SRAM data is successfully down- loaded, the display shows "OK". NG!! If the download fails, the display shows COPY MACH <- SRAM "NG". 8.
Page 125: Service Station Telephone Number (Function 13)
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.27. Service Station Telephone Number (Function 13) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately S.S. NO. KPAD 3. Input the telephone number of the service station that will receive Auto Service calls from this machine. S.S.
Page 126: Bit Switches
SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES 4.2. BIT SWITCHES WARNING Do not adjust a bit switch that is described as "Not used", as this may cause the machine to malfunction or to operate in a manner that is not accepted by local regulations.
Page 127 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 00 FUNCTION COMMENTS Technical data printout on 1: Instead of the personal code, the following data are TCR (Journal) listed on the TCR for each analog G3 communication. 0: Disabled e.g.
Page 128 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES Communication Parameters Mode DCS: ITU-T standard NSS: Non-standard G3 Modem rate 96: 9600 bps 72: 7200 bps 48: 4800 bps 24: 2400 bps Communication ECM: With ECM SSC: Using SSC mode EFC: Using EFC NML: With no ECM, SSC, or EFC Compression...
Page 129 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 02 FUNCTION COMMENTS Memory file transfer 1: All messages in the memory (including confidential 0: Disabled rx messages) are sent to the fax number which is 1: Enabled programmed as the service station. Always reset this bit to zero after transfer.
Page 130 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES System Switch 03 FUNCTION COMMENTS Length of time that RDS is 00 - 99 hours (BCD). temporarily switched on when bits 6 and 7 of This data is only valid if bits 6 and 7 of System Switch System Switch 02 are set to 02 are set to "User selectable".
Page 131 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 05 FUNCTION COMMENTS Not used Do not change the settings. System Switch 06 FUNCTION COMMENTS Use of the Stop key during 1: Memory transmissions can be stopped by pressing memory transmission the Stop key.
Page 132 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES System Switch 0A FUNCTION COMMENTS Not used Do not change the settings. Dialing on the ten-key pad 1: The user can dial on the machine’s ten-key pad when the handset is off-hook when the handset is off-hook.
Page 133 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 0D FUNCTION COMMENTS Original size groups to used in book original size detection. (Refer to section 2.1.2 Original Detection for the details.) Bit 0: Not used Bits 1 and 2: Legal/F Bit 2 Bit 1 Size...
Page 134 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES System Switch 0F FUNCTION COMMENTS Country code for functional settings This country code determines the factory (Hex) settings of bit switches and RAM addresses. However, it has no effect on the NCU 00: France 10: Not used parameter settings and communication...
Page 135 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 15 - Not used (do not change the settings) System Switch 16 - Not used (do not change the settings) System Switch 17 - Not used (do not change the settings) System Switch 18 - Not used (do not change the settings) System Switch 19 - Not used (do not change the settings) System Switch 1A - Not used (do not change the settings)
Page 136: Scanner Switches
SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES 4.2.2. Scanner Switches Scanner Switch 00 FUNCTION COMMENTS Not used Do not change the settings. Not used Do not change the settings. Maximum transmittable If the user wants to send very long documents such as document length well logs, select 14 m or a higher setting.
Page 137: Printer Switches
May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES 4.2.3. Printer Switches Printer Switch 00 FUNCTION COMMENTS Page separation mark 0: No marks are printed. 0: Disabled 1: If a received page has to be printed out on two 1: Enabled sheets, an "x"...
Page 138 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES Printer Switch 03 FUNCTION COMMENTS Length reduction of 0: Incoming pages are printed without length received data reduction. 0: Disabled Cross reference 1: Enabled Page separation threshold: Printer Sw. 03, bits 4 to 7. 1: Incoming pages are reduced in the length direction when printing.
Page 139 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Printer Switches 04 and 05 FUNCTION COMMENTS Reduction ratios used for different paper sizes (with reduction enabled in switch 03-0 above) If reduction is enabled, the data will be reduced in the length direction before printing. These switches determine the maximum reduction ratio for each paper size.
Page 140: Communication Switches
SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES 4.2.4. Communication Switches Communication Switch 00 FUNCTION COMMENTS Compression modes These bits determine the compression capabilities to available in receive mode be declared in phase B (handshaking) of the T.30 Bit 1 Modes protocol.
Page 141 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 01 FUNCTION COMMENTS If this bit is 0, ECM is switched off for all 0: Off 1: On communications. EFC during transmission If this bit is 0, EFC is switched off during transmission. 0: Off 1: On Wrong connection (0,1) - The machine will not transmit if the last 8 digits...
Page 142 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES Communication Switch 02 FUNCTION COMMENTS Burst error threshold If there are more consecutive error lines in the 0: Low 1: High received page than the threshold, the machine will send a negative response. The Low and High threshold values depend on the sub-scan resolution, and are as follows.
Page 143 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 06 FUNCTION COMMENTS Dialing requirements: These switches are automatically set to the settings Germany required by each country after a country code (System 0: Disabled 1: Enabled Switch 0F) is programmed. Dialing requirements: Austria 0: Disabled 1: Enabled Dialing requirements:...
Page 144 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES Communication Switch 0D FUNCTION COMMENTS The amount of remaining 00 to FF (Hex), unit = 2 kbytes memory below which (e.g., 40(H) = 128 kbytes) ringing detection (and One page is about 24 kbytes. therefore reception into If this setting is kept at 0, the machine will detect memory) is disabled...
Page 145 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 13 FUNCTION COMMENTS Immediate transmission: 00 - FF (Hex) minutes Interval between dialing attempts to the same destination Communication Switch 14 - Not used (do not change the factory settings). Communication Switch 15 - Not used (do not change the factory settings).
Page 146: G3 Switches
SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES 4.2.5. G3 Switches G3 Switch 00 FUNCTION COMMENTS Monitor speaker during (0, 0): The monitor speaker is disabled all through the communication (tx and rx) communication. Bit 1 Bit 0 Setting (0, 1): The monitor speaker is on up to phase B in the Disabled T.30 protocol.
Page 147 CTC transmission conditions When using ECM, the machine will choose a slower 0: Ricoh mode (PPR x 1) modem rate after receiving PPR once (Ricoh mode) or 1: ITU-T mode (PPR x 4) four times (ITU-T mode). ITU-T: New acronym for the CCITT.
Page 148 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES G3 Switch 04 FUNCTION COMMENTS Training error detection 00 - 0F (Hex); 0 - 15 bits threshold If the number of error bits in the received TCF is below this threshold, the machine informs the sender that the training has succeeded.
Page 149 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES G3 Switch 07 FUNCTION COMMENTS PSTN cable equalizer Use a higher setting if there is signal loss at higher (tx mode) frequencies because of the length of wire between the Bit 1 Bit 0 Setting modem and the telephone exchange.
Page 150 SERVICE TABLES AND PROCEDURES May 22nd, 1995 BIT SWITCHES G3 Switch 09 - Not used (do not change the factory settings). G3 Switch 0A FUNCTION COMMENTS Maximum allowable carrier These bits set the acceptable modem carrier drop time. drop during image data Try using a longer setting if error code 0-22 is frequent.
Page 151 May 22nd, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES G3 Switch 0B FUNCTION COMMENTS Not used Do not change the settings. G3 Switch 0C FUNCTION COMMENTS Pulse dialing method P=Number of pulses sent out, N=Number dialed. Bit 1 Bit 0 Setting Normal (P=N) Oslo (P=10 - N) Sweden (N+1)
Page 152: Ncu Parameters
SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS 4.3. NCU PARAMETERS The following tables give the RAM addresses and units of calculation of the parameters that the machine uses for ringing signal detection and automatic dialing. The factory settings for each country are also given. Most of these must be changed by RAM read/write (Function 06), but some can be changed using NCU Parameter programming (Function 08);...
Page 153 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks 807F06 Not used Do not change the factory setting. 807F07 807F08 PSTN dial tone detection time 20 ms If 807F08 contains FF, the machine pauses for the 807F09 PSTN dial tone reset time (LOW) pause time (address...
Page 154 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Address Function Unit Remarks PABX detection time for silent 20 ms 807F24 period after ringback tone detected (LOW) PABX detection time for silent 20 ms 807F25 period after ringback tone detected (HIGH) PABX busy tone frequency range Hz (BCD) If this is FF, detection is...
Page 155 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks International dial tone detection 20 ms If 807F38 contains FF, the 807F38 time machine pauses for the pause time (807F3D / International dial tone reset time 807F39 807F3E).
Page 156 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Address Function Unit Remarks Tone attenuation value in DTMF -dBm x Function 08 (parameter 19). 807F52 signals See Note 6. Tone attenuation value difference -Nx0.5 Function 08 (parameter 20). between high frequency tone and (dB) See Note 6.
Page 157 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks Acceptable ringing signal 1000/ N Function 08 (parameter 02). 807F72 frequency: range 1, upper limit (Hz). Acceptable ringing signal Function 08 (parameter 03). 807F73 frequency: range 1, lower limit Acceptable ringing signal Function 08 (parameter 04).
Page 158 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Address Function Unit Remarks 807FA6 Not used Do not change the factory setting. 807FA7 807FA8 807FA9 CNG detection time 20 ms Factory setting: 200 ms 807FAA ± 20 ms 807FAB CNG on time 20 ms Factory setting: 500 ms 807FAC...
Page 159 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Notes 1. If a setting is not required, store FF in the address. 2. Tone frequencies are stored as look-up tables in hex code. For each pa- rameter, there is a look-up table for each country that uses it. The tables are given following this page.
Page 160 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Tone Detection Frequency Ranges - PSTN Dial Tone (807F04 - 807F05) - France Germany Italy RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 415 - 465 400 - 480 030 (Default) 410 - 440 410 - 470...
Page 161 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Switzerland Portugal Holland RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 385 - 560 315 - 440 290 - 580 380 - 565 305 - 450 280 - 585 370 - 570 0B0 (Default) 295 - 455...
Page 162 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Sweden Switzerland Australia RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) FFFF Tone not 380 - 465 385 - 560 (Default) detected 375 - 470 380 - 565 405 - 445 365 - 475 370 - 570...
Page 163 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS - PSTN Busy Tone (807F13 - 807F14) France Germany U. K. RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 415 - 465 400 - 480 330 - 470 410 - 470 390 - 485 320 - 460...
Page 164 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Sweden Switzerland Holland RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 030 (Default) 410 - 440 385 - 560 335 - 540 400 - 450 380 - 565 325 - 545 395 - 455 370 - 570...
Page 165 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS - PABX Busy Tone (807F26 - 807F27) Italy Denmark Switzerland, Israel RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 030 (Default) 410 - 440 405 - 445 385 - 560 400 - 450 415 - 455...
Page 166: Default Settings
SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Default Settings The factory settings are quoted either in hexadecimal code (the actual con- tents of the RAM address) if there is a H after the value in the table, or in decimal (converted from the actual hex contents of the RAM address) if there is no H after the value.
Page 167 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F06 807F07 807F08 807F09 807F0A France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F0B 807F0C...
Page 168 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Country 807F10 807F11 807F12 807F13 807F14 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F15 807F16...
Page 169 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F1B 807F1C 807F1D 807F1E 807F1F France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F20 807F21...
Page 170 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Country 807F26 807F27 807F28 807F29 807F2A France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F2B 807F2C...
Page 171 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F30 807F31 807F32 807F33 807F34 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F36 807F37...
Page 172 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Country 807F3B 807F3C 807F3D 807F3E 807F3F France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F41 807F42...
Page 173 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F46 807F47 807F48 807F49 807F4A France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F4B 807F4C...
Page 174 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Country 807F50 807F51 807F52 807F53 807F54 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F59 807F5A...
Page 175 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F5E 807F5F 807F65 807F66 807F72 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F73 807F74...
Page 176 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Country 807F78 807F79 807F7A 807F81 807F82 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807FA1 807FA2...
Page 177 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807FA6 807FA7 807FA8 807FA9 807FAA France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807FAB 807FAC...
Page 178 SERVICE TABLES AND PROCEDURES May 22nd, 1995 NCU PARAMETERS Country 807FB1 807FB2 807FB3 807FB4 807FB5 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807FB6 807FB7...
Page 179 May 22nd, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807FDA France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia 4-71...
Page 180: Dedicated Transmission Parameters
SERVICE TABLES AND PROCEDURES May 22nd, 1995 DEDICATED TRANSMISSION PARAMETERS 4.4. DEDICATED TRANSMISSION PARAMETERS Each Quick Dial Key and Speed Dial Code has four bytes of programmable parameters allocated to it. If transmissions to a particular machine often expe- rience problems, store that terminal’s fax number as a Quick Dial or Speed Dial, and adjust the parameters allocated to that number.
Page 181: Parameters
May 22nd, 1995 SERVICE TABLES AND PROCEDURES DEDICATED TRANSMISSION PARAMETERS 4.4.2. Parameters The initial settings of the following parameters are all FF(H) - all the parame- ters are disabled. Byte 0 FUNCTION AND COMMENTS CCITT T1 time If the connection time to a particular terminal is longer than the NCU parameter setting , adjust this byte.
Page 182 SERVICE TABLES AND PROCEDURES May 22nd, 1995 DEDICATED TRANSMISSION PARAMETERS Byte 2 FUNCTION COMMENTS Initial Tx modem rate If training with a particular remote Bit 3 Setting (bps) terminal always takes too long, the Not used initial modem rate may be too high. 2,400 Reduce the initial Tx modem rate 4,800...
Page 183: Service Ram Addresses
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 4.5. SERVICE RAM ADDRESSES CAUTION Do not change the settings which are marked as “Not used” or “Read only.” 800000(H) - RAM Reset Level 1 Change the data at this address to 00 (H), then switch the machine off and on to reset all the system settings.
Page 184 SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE RAM ADDRESSES 8000A1(H) - User parameter switch 01 Bit 0: Auto Image Density home position 0: Off, 1: On Bit 1: Auto Paper Select home position 0: Off, 1: On Bit 2: Copy/Fax key home position 0: Off, 1: On Bits 3 to 6: Not used Bit 7: Settings return to home position after transmission...
Page 185 May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 8000A8(H) - User parameter switch 08 Bit 0 and 1: Not used Bits 2 and 3: Authorized reception Setting Disabled Faxes from senders whose RTIs/CSIs are specified for this feature are accepted.
Page 186 SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE RAM ADDRESSES 8000BA(H) - User function 62 settings Bit 0: Not used Bit 1: Dialing type 0: Pulse dialing (10 pps), 1: Tone (DTMF) dialing Bits 2 to 7: Not used 8000BB(H) - PSTN access number for loop start Access number Hex value to program (BCD) ò...
Page 187 May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES The following counters are listed on the System Parameter List. The names used on this re- port are given in parentheses below. 800158 to 80015A(H) - Tx counter (TX) Address High 800158(H) Tens digit...
Page 188 SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE RAM ADDRESSES 8001F1 to 80021A(H) - Night timer period (User function 71) 8001F1 to 8001F3(H) - Setting #1 for Monday 8001F4 to 8001F6(H) - Setting #2 for Monday 8001F7 to 8001F9(H) - Setting #1 for Tuesday 8001FA to 8001FC(H) - Setting #2 for Tuesday 8001FD to 8001FF(H) - Setting #1 for Wednesday 800200 to 800202(H) - Setting #2 for Wednesday...
Page 189 May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 800357(H) - Print left margin (standard cassette) 80035C(H) - Print left margin (optional 100 sheet cassette) 80035D(H) - Print left margin (bypass feeder) Refer to section 5.12 for details about these parameters. 800363(H) - Print bottom margin (bypass feeder) Refer to section 5.12 for details about this parameter.
Page 190 SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE RAM ADDRESSES 8003AD(H) - Sensor status (standard cassette and internal printer mechanism) Bit 0 to 3: Paper size sensor (Note: Available paper sizes depend on the country for which the machine is designed.) ...
Page 191 May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 8003B5(H) - Details of the service call (hardware error) 01(H) - The fusing lamp temperature stayed above 175 °C while printing. 02(H) - The fusing lamp temperature did not reach 150 °C before starting printing. 03(H) - The fusing lamp temperature did not go down to 100 °C while in standby mode (when fusing lamp OFF and fusing standby temperature 80 °C were selected for power saver mode) 04(H) - The fusing lamp temperature did not go down to 100 °C while in standby mode (when...
Page 192 SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE RAM ADDRESSES 8003FD to 800426 (H) - Scanner Video Processing Parameters See section 5.11.4 for details. 80183D to 8019BD(H) - Latest 64 error codes (Read only) One error record consists of 6 bytes of data. First error record start address - 80183D(H) Second error record start address - 801844(H) Third error record start address - 80184A(H)
Page 193 May 22nd, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 13th and 14th bytes - Rx level or measure of error rate If bit 5 of the 1st byte is 0: 13th byte - Rx level (low - Hex) 14th byte - Rx level (high - Hex) If bit 4 of the 1st byte is 1: 13th byte - Measure of error rate (low - Hex) 14th byte - Measure of error rate (high - Hex)
Page 194 SERVICE TABLES AND PROCEDURES May 22nd, 1995 SERVICE RAM ADDRESSES 39th to 41st byte - 1st error code and page number where the error occurred 39th byte - Page number where the error occurred (Hex) 40th byte - Error code (low - BCD) 41st byte - Error code (high - BCD) 42th to 44th byte - 2nd error code and page number where the error occurred 45th to 47th byte - 3rd error code and page number where the error occurred...
Page 195: Special Tools And Lubricants
May 22nd, 1995 SERVICE TABLES AND PROCEDURES SPECIAL TOOLS AND LUBRICANTS 4.6. SPECIAL TOOLS AND LUBRICANTS • Flash/SRAM data copy harness (P/N: H5159100) • Launa Oil - 40 (P/N: 54429103) for scanner guide shaft 4.7. PM TABLE Scanner Item 1 year Notes Exposure Glass C (user)
Page 196: Exterior
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT EXTERIOR 5. REPLACEMENT AND ADJUSTMENT WARNING The machine contains a laser beam generator. Laser beams can cause permanent eye damage. Do not open the laser unit or look along the laser beam path while the main power is on. CAUTION Before starting disassembly, be sure to print all message files in the SAF memory.
Page 197 REPLACEMENT AND ADJUSTMENT May 22nd, 1995 EXTERIOR H521R516.wmf Remove the connector cover, then remove the harness and a ground wire. D: Connector Cover (1 screw) H521R517.wmf E: ADF Lower Front Cover (2 screws, 1 grounding wire) F: ADF Lower Rear Cover (2 screws, 1 grounding wire) G: ADF Unit (2 connectors) 5 - 2...
Page 198: Operation Panel And Copy Tray
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT EXTERIOR 5.1.2. Operation Panel and Copy Tray H521R501.wmf A: Operation Panel Assembly (2 tapping screws) B: Copy Tray 5.1.3. Platen Cover and Original Scales H521R014.wmf A: Platen Cover (3 tapping screws) B: Horizontal Scale (2 silver screws) C: Vertical Scale (1 silver screw, 1 screw) 5 - 3...
Page 199: Top Cover And Exposure Glass
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 EXTERIOR 5.1.4. Top Cover and Exposure Glass H521R015.wmf A: Top Cover (2 screws) B: Exposure Glass 5.1.5. Left, Front, and Rear Cover H521R504.wmf A: NCU Cover (1 silver screw), B: Left Cover (2 black screws) C: Front Cover (2 black screws, 2 positioning hooks) D: Rear Cover (2 black screws, 3 positioning hooks) 5 - 4...
Page 200: Scanner
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT SCANNER 5.2. SCANNER 5.2.1. Contact Image Sensor H521R016.wmf H521R017.wmf Turn the gear [A] anti-clockwise to move E: Contact Image Sensor Assembly the image sensor [B] to the middle of (1 tapping screw, 1 grounding wire) scanning path.
Page 201: Fluorescent Lamp Stabilizer
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 SCANNER 5.2.2. Fluorescent Lamp Stabilizer H521R018.wmf A: Fluorescent Lamp Stabilizer (2 tapping screws, 3 connectors) 5.2.3. Original Size, Platen Cover, and Scanner Home Position Sensors H521R019.wmf A: Original Length Sensor (1 connector, 6 hooks) B: Original Width Sensor (1 connector, 6 hooks) C: Platen Cover Sensor (1 connector, 3 hooks) D: Scanner Home Position Sensor (1 connector, 3 hooks)
Page 202: Scanner Motor
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT LASER PRINTING COMPONENTS 5.2.4. Scanner Motor H521R020.wmf A: Scanner Motor (2 screws, 1 connector, 1 timing belt) 5.3. LASER PRINTING COMPONENTS 5.3.1. Inner Cover H521R511.wmf A: Inner Cover (3 hooks) 5 - 7...
Page 203: Laser Unit
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 LASER PRINTING COMPONENTS 5.3.2. Laser Unit H521R022.wmf First, remove the clip [A] and harnesses [B], [C], and [D], then remove the Laser Unit [E]. 5 - 8...
Page 204: Laser Diode Unit And Hexagonal Mirror Motor
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT LASER PRINTING COMPONENTS 5.3.3. Laser Diode Unit and Hexagonal Mirror Motor Warning Label (See below) H521R620.wmf A: Laser Unit Cover (7 hooks) B: Laser Diode Unit (2 tapping screws) C: Hexagonal Mirror Motor (3 tapping screws) WARNING Laser beams can cause permanent eye damage.
Page 205: Development
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 DEVELOPMENT 5.4. DEVELOPMENT 5.4.1. Master Drum H521R023.wmf A: Master Drum 5.4.2. Development Unit H521R621.wmf Release the clips [B] and [C], then remove the development unit [A]. A: Development Unit (2 clips, 1 connector) 5 - 10...
Page 206: Transfer Roller
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT DEVELOPMENT 5.4.3. Transfer Roller H521R622.wmf A: Transfer Roller (1 gear, 2 spacers) 5.4.4. Main Motor and Gears H521R623.wmf First, remove the zener diode [A], then remove the main motor assembly [B]. Note: Once the main motor assembly is removed, the gears and the shafts will come off the unit easily.
Page 207: Replacing The Development Unit
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 DEVELOPMENT 5.4.5. Replacing the Development Unit H521R646.wmf The spare development unit does not come with the development roller installed. So, assemble the roller first as shown above just before replacing the unit. A: Development Unit B: Development Roller (Rubber) C: Pin D: Development Roller Gear...
Page 208 May 22nd, 1995 REPLACEMENT AND ADJUSTMENT DEVELOPMENT 3. Check the electrical resistance of the following. Charge bias terminals/Zener diode H521R656.wmf A: Bias terminal to the CTM B: Bias terminal from the power pack C, D: Zener diode terminals Criteria A - B: 0 Ω C - D: The resistance varies depend- ing on the voltage applied between the terminals.
Page 209 REPLACEMENT AND ADJUSTMENT May 22nd, 1995 DEVELOPMENT 4. Install the new development unit into the machine. 5. Install the drum and CTM, and check that the following points are con- nected to frame ground. • Drum shaft • Main motor bracket •...
Page 210: Fusing
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT FUSING 5.5. FUSING 5.5.1. Thermistor H521R036.wmf A: Thermistor Cover (6 hooks), B: Thermistor (1 tapping screw, 1 connector) 5.5.2. Fusing Unit Preparation - Right hand side H521R625.wmf First, open the fusing exit cover [D], then remove the sensor assembly [A], bracket [B], and gear [C].
Page 211 REPLACEMENT AND ADJUSTMENT May 22nd, 1995 FUSING Preparation - Left hand side H521R034.wmf First, remove the ground wire [A], fusing unit fulcrum [B], then cover [C]. Note: Put back the bracket [D] after removing the ground wire [A]. A: Harness Cover A (1 tapping screw) B: Harness Cover B (1 tapping screw) C: Ground Wire (1 screw) D: Pull out the Fusing Unit Fulcrum (1 tapping screw)
Page 212: Hot Roller Strippers
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT FUSING 5.5.3. Hot Roller Strippers H521R037.wmf Remove the cleaning felt if it is still in the unit, then remove the strippers. A: Cleaning Felt B: Hot Roller Strippers (1 spring each) CAUTION Be careful not to lose the springs. 5.5.4.
Page 213: Hot Roller
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 FUSING 5.5.5. Hot Roller H521R630.wmf First, remove the tapping screw [A], then remove the tapping screws [B] and [C]. The fusing upper and lower units come apart after the ground plate [D] has been released from the shaft. CAUTION Do not bend the ground plate too much.
Page 214 May 22nd, 1995 REPLACEMENT AND ADJUSTMENT FUSING Then, remove the bracket [A] then the roller [B]. H521R631.wmf 115 V Models A: Bracket (3 screws, 2 of which are tapping screws) B: Hot Roller C: Fusing Lamp Connector (1 screw) H521R653.wmf 220 V Models A: Bracket (3 screws, 2 of which are tapping screws) B: Hot Roller...
Page 215: Pressure Roller
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 FUSING 5.5.6. Pressure Roller H521R632.wmf A: Bracket (2 screws, 1 of which is a stepped screw) B: Bracket (1 tapping screw) C: Pressure Roller 5.5.7. Thermostat and Thermofuse H521R654.wmf A: Thermostat (2 screws) B: Thermofuse (2 screws) - 220V models only C, D: Terminal Plates for the Thermofuse - 220V models only 5 - 20...
Page 216: Paper Feed
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT PAPER FEED 5.6. PAPER FEED 5.6.1. Paper Feed Roller and Clutch H521R027.wmf A: Paper Feed Clutch (1 clip, 1 connector) B: Paper Feed Roller (1 clip and 1 bushing at each end) 5.6.2. Paper End Sensor H521R030.wmf First, remove the bracket [A], then remove the sensor [B].
Page 217: Registration Sensor And Pressure Rollers
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 PAPER FEED 5.6.3. Registration Sensor and Pressure Rollers H521R029.wmf First, remove the CTM, master drum, and development unit. A: Pressure Rollers with Bracket (3 screws, 2 of which are tapping screws) B: Registration Sensor (2 hooks, 1 connector) 5.6.4.
Page 218: Bypass Feed Sensor
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT PAPER FEED 5.6.5. Bypass Feed Sensor H521R031.wmf The optional 100 sheet cassette interface [D] should be put back as shown in the dia- gram (the triangle mark has to be at the left hand side of the connector. A: Bypass Feed Table B: Bracket (2 screws) C: Bypass Feed Sensor (3 hooks)
Page 219: Pcbs
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 PCBs 5.7. PCBs 5.7.1. PSU H521R047.wmf A: PSU (3 screws, 2 hooks, 3 connectors) 5.7.2. NCU H521R044.wmf A: NCU (4 screws, 1 connector) 5 - 24...
Page 220: Fdu And Fce
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT PCBs 5.7.3. FDU and FCE H521R045.wmf Note: The NCU should be removed first. A: FDU (2 screws) B: FCE (2 screws) After installing the new FCE, transfer the RAM data from the old FCE using service function 12 (refer to section 4.1.22).
Page 221: Power Pack
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 OTHERS 5.7.4. Power Pack H521R026.wmf A: Power Pack (1 tapping screw, 1 connector) 5.8. OTHERS 5.8.1. Ozone Filter and Fan Motor H521R525.wmf Remove the bracket [A], then the ozone filter [B] and the fan motor [C] can be re- moved.
Page 222: Toner End Sensor
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT 5.8.2. Toner End Sensor H521R024.wmf A: Toner End Sensor (1 connector) 5.9. ADF 5.9.1. ADF Roller Asssembly and Covers H521R001.wmf A: ADF Roller Assembly 5 - 27...
Page 223: Pick-Up Roller
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 5.9.2. Pick-up Roller H521R002.wmf A: Pick-up Roller (2 clips, 2 gears) 5.9.3. Feed Roller H521R003.wmf A: Feed Roller (1 clip, 1 gear, 2 springs, 2 E-rings, 1 washer) 5 - 28...
Page 224: Separation Roller
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT 5.9.4. Separation Roller H521R004.wmf A: Upper Guide Plate (2 tapping screws), B: Separation Roller (1 clip) 5.9.5. ADF Motor and Covers H521R005.wmf A: ADF Upper Front Cover (1 screw, 1 hook) B: ADF Upper Rear Cover (1 screw, 2 hooks) C: ADF Lower Rear Cover (2 screws) D: Connector Cover (1 screw) E: ADF Motor (2 screws)
Page 225: R0 And R1 Rollers
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 5.9.6. R0 and R1 Rollers H521R006.wmf A: R0 Roller (1 E-ring, 1 gear, 2 bushings) B: R1 Roller (1 E-ring, 1 gear, 2 bushings) 5.9.7. R2 Roller H521R007.wmf A: ADF Release Lever B: Timing Belt C: Tensioning Roller Ass’y (1 screw) Continued on the next page 5 - 30...
Page 226: Document Sensor And Width Sensor
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT H521R008.wmf Remove the R2 roller [A] while lowering the guide plate [B]. 5.9.8. Document Sensor and Width Sensor H521R009.wmf A: Document Sensor B: B4 Width Sensor 5 - 31...
Page 227: Scan Line Sensor
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 5.9.9. Scan Line Sensor H521R010.wmf A: Scan Line Sensor (1 screw) 5.9.10. Cover Sensors H521R011.wmf A: ADF Cover Switch Continued on the next page 5 - 32...
Page 228 May 22nd, 1995 REPLACEMENT AND ADJUSTMENT H521R012.wmf A: Upper Rear Cover (1 screw, 2 hooks) B: ADF Switch 5 - 33...
Page 229: Sheet Paper Cassette (Optional)
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 100 SHEET PAPER CASSETTE (OPTIONAL) 5.10. 100 SHEET PAPER CASSETTE (OPTIONAL) 5.10.1. Relay Connector and Gear Cover H521R642.wmf Turn the cassette upside down. A: Harness Cover (2 screws) B: Interface Connector (2 clips) C: Gear Cover (1 screw) 5 - 34...
Page 230: Paper End Sensor And Drive Components
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT 100 SHEET PAPER CASSETTE (OPTIONAL) 5.10.2. Paper End Sensor and Drive Components H521R643.wmf Paper End Sensor First, remove the stay [A] and the cover [B], then remove the sensor [C]. Paper Feed Clutch and Rollers First, remove the gears [D], then remove the clutch [E] and roller [F].
Page 231: Paper Size Sensor
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 100 SHEET PAPER CASSETTE (OPTIONAL) 5.10.3. Paper Size Sensor H521R644.wmf A: Paper Guide B: Bottom Plate (2 springs) C: Paper Size Indicator (1 clip, 1 spring) D: Paper Size Sensor (2 hooks) 5 - 36...
Page 232: Image Adjustment
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT IMAGE ADJUSTMENT 5.11. IMAGE ADJUSTMENT 5.11.1. Overview This section explains how to adjust various scanning and printing parameters. Among these are the margin parameters shown in the diagram below, which are named in accordance with the table below the diagram. H521R650.wmf Adjustable by Parameters...
Page 233: Scanner Parameters
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 IMAGE ADJUSTMENT 5.11.2. Scanner Parameters 1. Contrast Text Mode Halftone Mode Bit Switch Initial Setting Bit Switch Initial Setting Normal Scanner 02 08(H) Scanner 05 07(H) Lighten Scanner 03 0B(H) Scanner 06 08(H) Darken Scanner 04 06(H) Scanner 07...
Page 234 May 22nd, 1995 REPLACEMENT AND ADJUSTMENT IMAGE ADJUSTMENT Parameter Initial Formula Unit Address Setting W1, W2 Not adjustable 8002A5(H) (low) 81(H) 8002A6(H) [129(D)] (high) H521R651.wmf This parameter changes the number of tx motor steps after the scan line sensor is activated.
Page 235: Printer Parameters
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 IMAGE ADJUSTMENT 5.11.3. Printer Parameters 1. Margin (Main Scan Direction) Initial Parameter Formula Unit Address Setting H521R648.wmf Standard cassette: 800357(H) 05(H) 100 sheet cassette: 0.5 mm Min: 0 80035C(H) Max: 64(H) Bypass feed: 80035D(H) To increase the margin by x mm: New setting = Current setting + x/0.5 To decrease the margin by x mm:...
Page 236: Margin (Sub Scan Direction)
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT IMAGE ADJUSTMENT 2. Margin (Sub Scan Direction) Initial Parameter Formula Unit Address Setting Standard 03(H) cassette: 80034D(H) 100 sheet 07(H) cassette: 800352(H) 0.66 Bypass 00(H) feeder: 800353(H) Max: 30(H) H521R651.wmf 19.8 To increase the margin by x mm: New setting = Current setting + x/0.66 To decrease the margin by x mm: New setting = Current setting - x/0.66...
Page 237: Scanner Video Processing Parameters
REPLACEMENT AND ADJUSTMENT May 22nd, 1995 IMAGE ADJUSTMENT 5.11.4. Scanner Video Processing Parameters 1. Contrast Mode Address Threshold Value (H) Range Copy Mode, without Halftone, Auto Image Density on Darken 8003FDH 00 - 0F Normal 8003FEH Lighten 8003FFH Copy Mode, without Halftone, Auto Image Density off Darken 800400H 00 - 1F...
Page 238: Image Processing Parameters Adjustment
May 22nd, 1995 REPLACEMENT AND ADJUSTMENT IMAGE ADJUSTMENT 2. Image Processing Parameters Adjustment The tables in the following pages show the following video processing pa- rameter settings for each of scanning mode. One byte of parameter is assigned for each mode, and they all have the same definitions as follows.
Page 239 REPLACEMENT AND ADJUSTMENT May 22nd, 1995 IMAGE ADJUSTMENT Copy Mode Parameters Mode Address bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 Full Size 80040FH 115%-155% 800410H Enlargement 200% 800411H Enlargement Full Size 800412H 115%-155% 800413H...
Page 240 May 22nd, 1995 REPLACEMENT AND ADJUSTMENT IMAGE ADJUSTMENT Mode Address bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 Book 800421H mode mode 800422H Book 800423H mode 800424H mode Book 800425H mode mode 800426H Notes 1.
Page 241: Copy Quality Troubleshooting
May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6. TROUBLESHOOTING 6.1. COPY QUALITY TROUBLESHOOTING If there is a copy quality problem that cannot be solved easily, try using the following troubleshooting procedures, while referring to the point-to-point dia- gram. The procedures may not be exhaustive, but they may help you to find the problem.
Page 242: Blank Copies
TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING 6.1.1. Blank Copies Possible Cause (Scanner): • Malfunction in the scanner drive mechanism. • Obstructions in the scanner drive path. Action: 1. Do the ADF test (service function 10) and check that the scanner moves correctly.
Page 243 May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING • Check that the development unit is correctly installed or not. • Check if the resistance between the development roller bias terminal on the development unit and the development roller shaft, the toner meter- ing plate, and the bias brush are less than 1 kOhm or not.
Page 244: Black Copies
TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING 6.1.2. Black Copies Possible Cause (Scanner) • The contact image sensor is defective. • The xenon lamp, or the xenon lamp driver is defective. Action: 1. Check the connection between the FDU (CN60) and the contact image sensor.
Page 245: Dirty Background
May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.3. Dirty Background h521t607.wmf h521t612.wmf Possible Cause (Scanner) • Scanner shading correction error or wrong threshold. Action: 1. Clean the shading plate (for both book and ADF). 2. Adjust the scanner contrast threshold settings. Possible Cause (Printer) •...
Page 246: Uneven Image Density
TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING 6.1.4. Uneven Image Density h521t608.wmf h521t612.wmf Possible Cause (Scanner) • Dirty exposure glass Action • Clean the exposure glass (for both book and ADF). • Replace the image sensor. Possible Cause (Printer) • Poor drum sensitivity.
Page 247: Vertical Black Lines
May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.5. Vertical Black Lines h521t603.wmf h521t612.wmf Possible Cause (Scanner) When the problem occurs during book copying: • Defective contact image sensor element(s). When the problem occurs during ADF copying: • Dirt or dust on the ADF exposure glass. •...
Page 248: Horizontal Black Lines
TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING 6.1.6. Horizontal Black Lines h521t610.wmf h521t611.wmf Possible Cause (Printer) • The drum surface is scratched or damaged. • Charge corona leak failure. Action: 1. Check that the surface of the drum is not damaged. •...
Page 249: Vertical White Lines
May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.7. Vertical White Lines h521t606.wmf h521t612.wmf Possible Cause (Scanner) • Defective image sensor element(s). Action: • Replace the image sensor. Possible Cause (Printer) • The laser optic components are dirty. • The hot roller stripper scrapes off toner from the print paper. Action: •...
Page 250: Horizontal White Lines
TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING 6.1.8. Horizontal White Lines h521t609.wmf h521t611.wmf Possible Cause (Printer) • The surface of the development roller is damaged or deformed. • The development bias is not stable. • Transfer current is not stable. Action: 1.
Page 251: Black Dots/Spots
May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.9. Black Dots/Spots h521t602.wmf Possible Cause (Scanner) • Dust on the exposure glass. Action: • Clean the exposure glass. • Try disabling MTF. Possible Cause (Printer) • The drum surface is damaged (this is likely if the dots appear at 94.2 mm intervals).
Page 252: White Spots In Black Image Areas
TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING 6.1.10. White Spots in Black Image Areas h521t601.wmf Possible Cause (Printer) • The drum surface is damaged (this is likely if the dots appear at 94.2 mm intervals). • The development roller surface is damaged (this is likely if the dots ap- pear at 62.8 mm intervals).
Page 253: Faint Copies
May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.11. Faint Copies h521t604.wmf h521t612.wmf Possible Causes (Scanner) • Dirty shading plate and/or exposure glass • Wrong scan threshold • Contact image sensor (xenon lamp, sensor element) defect Action: • Clean the white plate (for both book and ADF). •...
Page 254 TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING Action: 1. Check whether the toner saving feature has not been selected with the user parameters. (If it has been selected, there is no problem.) 2. Print a test pattern, and open the cover in the middle of printing. 3.
Page 255: Vertical Black Band
May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.12. Vertical Black Band h521t605 h521t612 Possible Cause (Printer) • Dirty charge corona wire. • The toner metering blade is deformed, damaged, or incorrectly posi- tioned. Action: • Clean the charge corona wire. The wire cleaner is on the CTM. •...
Page 256: Unfused Copies
TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING 6.1.13. Unfused Copies Possible Cause (Printer) • The thermistor is defective. • The fusing pressure roller spring mechanism is defective. • The wrong type of toner is being used. • A non-recommended type of paper is being used. Action: 1.
Page 257: Toner On The Back Of The Printer Paper
May 22nd, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.15. Toner on the Back of the Printer Paper Possible Cause (Printer) • Dirty transfer roller • Dirty fusing pressure roller Action: 1. Check if the transfer roller is dirty with toner or not. •...
Page 258: Misaligned Output (Data Shifted To The Right Or Left)
TROUBLESHOOTING May 22nd, 1995 COPY QUALITY TROUBLESHOOTING 6.1.16. Misaligned Output (Data shifted to the right or left) Possible Cause (Scanner) • Incorrect setting of the document guide. Action: • Align each side of the document to the document guides. Possible Cause (Printer) •...
Page 259: Mechanical Problems
May 22nd, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 6.2. MECHANICAL PROBLEMS 6.2.1. ADF 1. Non Feed Possible Cause: • An incorrect type or size of document is used. • The ADF roller assembly is not properly installed. • The pick-up and feed rollers are dirty or worn out. •...
Page 260 TROUBLESHOOTING May 22nd, 1995 MECHANICAL PROBLEMS 2. Jam Possible Cause: • An incorrect type or size of document is used. • The document is too long. • The ADF rollers (pick-up, feed, R0, R1, and R2 rollers) are dirty. • Obstruction in the document paper path.
Page 261: Skew
May 22nd, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 3. Skew Possible Cause: • An incorrect type or size of document is used. • The document guide is not properly set. • The ADF cover is not properly closed. • The ADF roller assembly is not properly installed. •...
Page 262: Book Scanner
TROUBLESHOOTING May 22nd, 1995 MECHANICAL PROBLEMS 6.2.2. Book Scanner 1. Abnormal Noise Possible Cause: • Obstruction in the scanner drive path. • Malfunction in the scanner drive components. Action: • Do the scanner test (service function 10) and check that the scanner moves correctly.
Page 263: Automatic Paper Selection Error
May 22nd, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 3. Automatic Paper Selection Error Possible Cause: • Defective book original size sensor(s). • Improper bit switch setting for original size detection. Action: • Check that the book original size sensors are working properly and re- place any defective sensor.
Page 264: Printer
TROUBLESHOOTING May 22nd, 1995 MECHANICAL PROBLEMS 6.2.3. Printer 1. Non-feed Possible Cause: • A non-recommended type of paper is being used. • The paper cassette end fence is not properly set. • The paper lift mechaninsm (slide lock) is not working properly. •...
Page 265: Paper Jam - Inside The Printer
May 22nd, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 2. Paper Jam - Inside the Printer Possible Cause: • A non-recommended type of paper is being used. • The paper end fence and/or the paper guides in the cassette is not prop- erly set. •...
Page 266: Jam - Fusing Exit
TROUBLESHOOTING May 22nd, 1995 MECHANICAL PROBLEMS 3. Jam - Fusing Exit Possible Cause: • A non-recommended type of paper is being used. • Obstruction in the paper path. • The registration sensor is defective. • Malfunction in the fusing drive mechanism. •...
Page 267: Skew
May 22nd, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 4. Skew Possible Cause: • A non-recommended type of paper is being used. • Incorrect positioning of the paper guides in the paper cassette. • The corner separators are out of position. • The paper feed rollers are worn out or damaged. •...
Page 268: Service Call Conditions
TROUBLESHOOTING May 22nd, 1995 SERVICE CALL CONDITIONS 6.3. SERVICE CALL CONDITIONS If the Call Service indicator is lit, one of the following conditions has occurred. Symptom Error Code Sub-code SC-code Scanner home position error 9-11 7-71 Charge leak current detected while the charge 9-17 1-11 corona unit was activated.
Page 269 May 22nd, 1995 TROUBLESHOOTING SERVICE CALL CONDITIONS After each troubleshooting attempt, reset the machine and try to operate it. If the machine still does not work, continue troubleshooting. Symptom: Scanner Home Position Error (Error Code 9-11) This error occurs in either of the following conditions: •...
Page 270 TROUBLESHOOTING May 22nd, 1995 SERVICE CALL CONDITIONS Symptom: Charger Leak (Error Code 9-17) 6. Does CN21-3 stay low Replace the FDU or FCE. Go to step 7. while in standby mode ? 7. Does CN21-8 stay low Replace the power pack. while in standby mode ? Symptom: LD Failure (Error Code 9-20) This error occurs in the following condition:...
Page 271 May 22nd, 1995 TROUBLESHOOTING SERVICE CALL CONDITIONS Symptom: Fusing Unit Failure (Error Code 9-22) 2. Check if ac power is supplied to the lamp from the PSU or not. - If yes, go to step 3. - If no, replace the PSU. 3.
Page 272: Error Codes
TROUBLESHOOTING May 22nd, 1995 ERROR CODES 6.4. ERROR CODES If an error code occurs, retry the communication. If the same problem occurs, try to fix the problem as suggested below. Note that error codes 4-00, 01, 02, and 10 only appear in the error code display and on the service report. Code Meaning Suggested Cause/Action...
Page 273 May 22nd, 1995 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 0-07 No post-message Check the line connection. response from the other Check the FDU - NCU connectors. end after a page was sent Replace the NCU or FCE. The other end may have jammed or run out of paper. The other end user may have disconnected the call.
Page 274 TROUBLESHOOTING May 22nd, 1995 ERROR CODES Code Meaning Suggested Cause/Action 0-20 Facsimile data not Check the line connection. received within Check the FDU - NCU connectors. 6 s of retraining Replace the NCU or FCE. Check for line problems. Try calling another fax machine. Try adjusting the reconstruction time for the first line and/or rx cable equalizer setting.
Page 275 May 22nd, 1995 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 0-30 The other terminal did Check the line connection. not reply to NSS(A) in AI Check the FDU - NCU connectors. short protocol mode Try adjusting the tx level and/or cable equalizer settings.
Page 276 TROUBLESHOOTING May 22nd, 1995 ERROR CODES Code Meaning Suggested Cause/Action 2-10 The modem cannot enter Replace the FCE. tx mode 2-11 Only one V.21 Change the FCE. connection flag was received 2-12 Modem clock irregularity Replace the FCE. 2-20 Abnormal Replace the FCE.
Page 277 May 22nd, 1995 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 6-01 G3 ECM - no V.21 signal Try adjusting the rx cable equalizer. was received Replace the FCE, FDU or NCU. 6-02 G3 ECM - EOR was received 6-03 G3 ECM - non-standard The other terminal may be defective.
Page 278 TROUBLESHOOTING May 22nd, 1995 ERROR CODES Code Meaning Suggested Cause/Action 9-10 Toner end detected Replace the CTM. 9-11 Home position not If the problem persists, replace the FCE. detected in book scanner Cross reference mode Charge corona failure - Section 6-3 9-12 Cover open detected Close the cover, or check the cover sensors.
Page 279: Electrical Component Defects
May 22nd, 1995 TROUBLESHOOTING ELECTRICAL COMPONENT DEFECTS 6.5. ELECTRICAL COMPONENT DEFECTS 6.5.1. Defective Sensor Table Sensor Status Symptoms if Defective ADF document sensor "CLEAR ORIGINAL" or "DIAL FAX NO" is displayed at power-up. "SET DOCUMENT" is still displayed after a document is placed in the feeder.
Page 280: Blown Fuse Table
TROUBLESHOOTING May 22nd, 1995 ELECTRICAL COMPONENT DEFECTS Sensor Status Symptoms if Defective Paper end sensor - Stand- The Add Paper indicator lights even if paper is ard cassette remaining. The Add Paper indicator does not light when the paper has run out. Paper size sensor - 100 "ADD PAPER"...
Page 281 Point-to-Point Diagram Point-to-Point Diagram Issued on: May 22nd, 1995 Model: LSO (MV310) Model: LSO (MV310) Revision 1.0 Subject to change +24V COM3 Fusing Lamp ON [ RSEL (US - Not used) Power to the Fusing Lamp ON [ Not used...

Ricoh MV310 Service Manual

Overall Machine Information

Specifications

Features

Component Layout

Overall Machine Control

Video Data Path

Power Distribution

Detailed Section Descriptions

Scanner

Printing

Service Call Conditions

System Features

Pcbs

Installation

Installing the Machine

Initial Programming

Optional Units

Service Tables and Procedures

Service Level Functions

Bit Switches

Ncu Parameters

Dedicated Transmission Parameters

Service Ram Addresses

Special Tools and Lubricants

5 Replacement and Adjustment

Exterior

5.2. Scanner . . . . . . . . . . . . . . . . . . . . . 5-5

5.3. Laser Printing Components . . . . . . . . . . . 5-7

5.4. Development . . . . . . . . . . . . . . . . . . . 5-10

5.5. Fusing . . . . . . . . . . . . . . . . . . . . . . 5-15

5.6. Paper Feed . . . . . . . . . . . . . . . . . . . . 5-21

5.7. Pcbs . . . . . . . . . . . . . . . . . . . . . . . 5-24

5.8. Others . . . . . . . . . . . . . . . . . . . . . . 5-26

5.9. Adf . . . . . . . . . . . . . . . . . . . . . . . . 5-27

Sheet Paper Cassette (Optional)

Image Adjustment

6 Troubleshooting

Copy Quality Troubleshooting

Mechanical Problems

Error Codes

Electrical Component Defects

Quick Links

Related Manuals for Ricoh MV310

Summary of Contents for Ricoh MV310