Page 1 B230/B237 B230/B237 Course Reference Material This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 2 B230/B230 TRAINING PROGRAM...
Page 3 Introduction: The B230/B237 is a mid-range network multi-functional color copier. Based on the GW Architecture. Provides: Network Scanning (color originals can be scanned) Local Storage (with the HDD) Copying Printing...
Page 4 Objectives The objectives of this training program is to: • Understand installation, detailed descriptions, and routine maintenance. − Understand the PM table. − Understand the important SP codes. • Understand troubleshooting and repair procedures of this product as you would in the field. ORIENTATION Provide the trainees with information about the training course procedures, facilities, objectives and rules.
Page 5 Course Overview This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. The course is broken up into several modules. This section outlines these modules.
Page 6 Course Overview Product Outline Specifications Installation Machine Overview Scanner Image Processing Laser Unit Process Control PRODUCT OUTLINE The model will be introduced to the class. The optional peripherals will be introduced to the class. The product concept, sales points, and targets will be presented. SPECIFICATIONS The main specifications will be outlined.
Page 7 Course Overview Continued Toner Supply Waste Toner Collection Transfer and Separation Paper Feed Fusing Paper Exit Duplex TONER SUPPLY The toner supply mechanism will be described. Toner supply control, and near-end/end detection are covered in the process control section. WASTE TONER COLLECTION Waste toner collection will be discussed.
Page 8: Troubleshooting
Course Overview Continued Options ARDF • • Paper Tray Unit • • Shift Tray • One-bin Tray • Bridge Unit • 500-sheet finisher • 1000-sheet finisher • Booklet finisher Maintenance Troubleshooting OPTIONS The options listed above will be described in the indicated order. The only new one is the booklet finisher, and that contains mechanisms from the V-C1 booklet finisher.
Page 9 Product Overview This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. The course is broken up into several modules. This section outlines these modules.
Page 10 Appearance Booklet Finisher Two-tray Paper Tray Unit Here is a view of the machine with three optional peripherals installed. There are other options, as we will see later.
Page 11 Models in this line B230: • 25 cpm B237: • 30 cpm...
Page 12: Product Positioning
AT-C1a = B237 AT-C1b This chart shows which machines the B230/B237- could be used as alternatives or as replacements. The faster machine could be seen as a replacement for the slower models of the Jupiter-C1/C2 series. The B230/B237 uses a four-PCU tandem color copying...
Page 13: Sales Points
SALES POINTS This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 14 Shorter First Copy Output Time: Black-and-white 6.7 sec − − Full color: 9.7 sec Productivity • High speed color output B230: 25 cpm, B237: 30 cpm − Booklet Finisher • • Large Paper Capacity: Max. 3,100 sheets • LCT can be refilled during copying High Speed Scanning: 50 pages/minute (monochrome or color, LT •...
Page 15 New Display Panel Color Mode Icon Check Modes Job List Remaining Job Time The color mode icon changes when you select Auto color Select, Full color, or Black and White. Ask the class to try it on the machine, if you have one set up already.
Page 16 Animated Guidance Display For some functions, such as removing jams and replacing toner, an animated guidance appears on the screen.
Page 17 Improved Operation Panel Layout Login/Logout, Larger LCD for Authentication Status Lamps Start Key Simplifies Can be seen from a distance the Display The login/logout button makes authentication a bit easier. The ‘simplified display’ button reduces the amount of information on the LCD panel.
Page 18: Simplified Display
Simplified Display Normal Display Simplified Display The simplified display appears when you push the Simplified Display button.
Page 19 Easy Jam Removal Simple paper path All jams can be removed from the right side of the machine. • If the finisher is installed, jams can occur in the finisher. The photo on the left shows that the path through the machine is simple.
Page 20 LED indication on the One-bin Tray One-bin Tray This LED lights when the one-bin Standard tray has paper in Output Tray This LED lights when an output arrives on the one-bin tray. • The one-bin tray is an optional device. If the one-bin tray is set up to receive fax messages, then the LED tells the customer when a fax message has been printed.
Page 21 Paper Tray Handle The handle allows the paper tray to be pulled easily with an ‘overhand’ or ‘underhand’ grip.
Page 22 Replacing Toner is Easy Toner cartridges can be changed with one hand, and with one easy movement.
Page 23 ARDF Accessibility To make the machine accessible to people in wheelchairs, the components operated by a users must be in the area as shown in the diagram. • USA regulations Therefore, the lifting angle of the ARDF must be limited to within 40 degrees.
Page 24 ARDF Accessibility Continued To limit the ADRF angle, these hinges will be available as options or service parts.
Page 25 Mainframe with No Options Duplex Bypass tray 2x500-sheet trays 500-sheet output tray 8.5-inch W-VGA touch panel Printer/Scanner 1024MB Memory 40GB HDD PCL5c/6, RPCS 10/100 BaseTX USB2.0 This slide shows what you get with the base machine. Note that the printer/scanner is standard.
Page 26 Paper Handling Options You can install up the following: The platen cover or the ARDF Shift tray or one of the three finishers (a finisher requires the bridge unit) One-bin tray The two-tray paper feed unit (also called a ‘paper bank’) or the LCT Except for the booklet finisher, all the above items are the same as those used with the B156, but with a different color for the cover.
Page 27: Fax Options
Fax Options Fax Option: New Item Optional G3 unit: New Item SAF memory (32MB): Same as B202 series/B156 Handset: Same as B202 series/B156 Fax Stamp Ink: Same as B079/B082, B202 series...
Page 28: Printer/Scanner Options
Printer/Scanner Options PostScript3 option: New Item • Required to use the PDF Direct Print Function Wireless LAN (IEEE 802.11b): Same as B202 series, B156 IEEE 1284: Same as B202 series, B156 IEEE 1394: Same as B202 series, B156 Bluetooth: Same as K-C2.5, PG-C1, MT-C3, B-C3, AP-C1 USB Host: New, also used with PG-C1, MT-C3, B-C3 •...
Page 29: Security Options
Security Options HDD Data Overwrite Security Unit: Also used with B202 series, B156 Copy Data Security Unit: Also used with B079/B082, R-C4...
Page 30: Other Options
Other Options Java VM Card: New Item, also used with MT-C3, B-C3 Web Browser Option (SDK): New Item Optional counter Interface: New Item • This is a 20-pin interface. It is required when you attach a key counter. Key Counter Bracket: Also used with B202 series...
Page 31 Reliability Targets Unit life (2 prints per job): 1200K or 5 years Average Copy Volume per month (copy + fax + print): • B230: 5K • B237: 8K Max Copy Volume per month: 20K (Target Color Ratio: 30%) PM cycle: 80K (Target Color Ratio: 30%)
Page 32 Yield Targets Toner • Cartridge Capacity − Black: 450g /cartridge − Cyan / Magenta / Yellow: 360g /cartridge • Target Yield (LT, 5% coverage) − Black: 20K outputs /cartridge − Cyan / Magenta / Yellow: 15K outputs /cartridge Staples • 5,000 staples per cartridge (all finishers) The toner bottles are not compatible with other products.
Page 33: Specifications
Specifications This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 34 Mainframe Configuration: Desk Top Original scanning: One-dimensional solid scanning through CCD Copy process: Dry electrostatic transfer system Development: Dry two-component magnetic brush development system Fusing: Belt pressure system Original Type: Sheet / Book / Object Original Size: Max: 11”x17”(DLT) / A3 Thickness of Original: Less than 30mm (Less than 5kg) Scan Resolution:...
Page 35 16cpm (LT/A4 LEF, FC/BW) B237 FC: 30cpm / BW: 30cpm (LT/A4 LEF) OHP/Thick Paper(over105gsm): 16cpm (LT/A4 LEF, FC/BW) Copying Speed B230 FC: 23cpm /BW: 23cpm(LT/A4 LEF) (Simplex to duplex) B237 FC: 28cpm /BW:28cpm(LT/A4 LEF) Copy Time : FC:9.7sec. / BW: 6.7sec.
Page 36 Mainframe Power Source: US model: 120V 60Hz Max. Power Consumption: US model: 1,440W EU/Asia model: 1,500W (Full Configuration) Machine Dimensions: 650 x 654 x 740mm (Standard) (Width x Depth x Height) 670 x 698 x 1,000mm (with 2-Tray Paper Bank) Machine Weight: Less than 120kg (with ARDF) Counter:...
Page 37 Thick Paper Productivity Model Mode Paper BK CPM FC CPM Thickness (g/m B230 Thin Paper 52-59 Plain Paper Middle Thick -105 Thick Paper 1 -169 Thick Paper 2 -219 Thick Paper 3 -253 B237 Thin Paper 52-59 Plain Paper Middle Thick...
Page 38: General Specification
Printer General Specification RM7035C-600MHz Std. 1024MB (DDR SDRAM-DIMM(PC-2100)) Hard Disk Drive Std. 40GB Std. RPCS, PCL5c, PCL6 Option Adobe PostScript3 Resolution Max. 600 x 600 dpi / 4bit (= 2400 dpi equivalent x 600 dpi ) Fonts Std. PCL: 46 fonts (Truetype: 10 fonts, Intell: 35 fonts, Bitmapped: 1 font) + International fonts: 13 Intellifonts Option...
Page 39 TCP/IP (IP v4, IP v6), IPX/SPX, SMB, Apple Talk (Auto Switching) MIB support Standard MIB (SMNP Printer MIB): MIB-II(RFC1213), HostResource(RFC1514), PrinterMib(RFC1759) Private MIB: Ricoh Original Network/Operating Windows 95/98SE/NT4.0/2000/Me/XP/Server 2003 Systems Netware 3.12, 3.2, 4.1, 4.11, 5.0, 5.1, 6, 6.5 Unix; Sun Solaris, HP-UX, SCO OpenServer, RedHat Linux, IBM AIX Mac OS 8.6-9.2x, OS X 10.1 or later...
Page 40 Scanner General Specification Resolution: 100 / 200 / 300 / 400 / 600/1200* dpi Default = 200dpi *only BW TWAIN Scan Speed: BW: 50pages/minute (A4/LET LEF / 200dpi ) FC: 50pages/minute (A4/LET LEF / 200dpi) Scan Area: Main Scan: 297mm, Sub Scan: 432mm sRGB Support: Option (With Optional File Format Converter) Network Interface:...
Page 41 Scanner General Specification Scan Mode: Standard: BW Text, BW OCR, BW Text/Photo, BW Photo, BW Grayscale, FC Photo, FC Text Optional: ACS (With Optional File Format Converter) Image Density : Auto Density Selection (Effective only in BW and Grayscale scan mode) Manual: 7 levels (Effective in BW/Grayscale and FC scan mode) Image Rotation:...
Page 42 Products Comparison B230/B237 B156 B202/B178 Configuration Desk Top Desk Top Desk Top Dimension 650 x 654x 740 550 x 682 x 6 7 0 x 698 x (W x D x H) 781mm 859mm Weight 120kg 85kg 120kg Scan Resolution...
Page 43 Products Comparison B230/b B156 B202/B178 Copy Speed BW: 25/30cpm BW: 24/32cpm BW: 28/35cpm (A4/LT LEF) FC: 25/30cpm FC: 10cpm FC : 24/28cpm Copy Speed BW 6.7sec. BW 7.8sec. BW 8.0sec. FC 9.7sec. FC18.0sec. FC10.0sec. Warm-up Time 45sec. 99sec. 99sec. Multiple Copy 1-999 1 –...
Page 44: Installation
Installation This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 45: Installation Requirements
Installation Requirements Verify the following before installing the machine and all its options: Environment Machine Level Space Requirements Power Requirements Requirements: Environment: 1. Temperature range: 10 degrees C to 32 degrees C (50 to 89.6F) 2. Humidity Range: 15% to 80% RH 3.
Page 46: Important Safety Notices
Important Safety Notices Observe all electrical safety standards Power Requirements: Input Voltage level: 120V, 60Hz. More than 12 Amps Permissible voltage fluctuations: +/-10%...
Page 47: Optional Unit Combinations
Optional Unit Combinations Machine Options...
Page 48 Optional Unit Combinations Controller Options...
Page 49: Installation Sequence
Installation Sequence Be sure to follow the installation flowchart in the service manual.
Page 50: Accessory Check
Accessory Check Check the contents of all boxes thoroughly Check the quantity and condition of the accessory list...
Page 51 Inside the Front Door...
Page 52: Installation Steps
Installation Steps Remove the screw that locks the drum Open the drum positioning plate positioning plate lever...
Page 53 Installation Steps Installing and removing toner bottles...
Page 54 Installation Steps Installing and removing 4 color PCUs/Dev Units PCUs/Dev Units...
Page 55: After Installation
After Installation Plug in the power cord and turn on the main switch Obtain a color original and verify the operation of the machine and all it’s options and accessories Enter the User Tools mode and print a Configuration page. Make sure all installed options and accessories are listed in the ‘System Reference”...
Page 56: Machine Overview
Machine Overview This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 57: Component Layout
Component Layout Refer to Section 6.1.1 SM 1. Scanner HP sensor 2. ADF exposure glass 3. 2 scanner (2 carriage) 4. Exposure glass 5. Original width sensor 6. Scanner Lamp 7. 1 scanner (1 carriage) 8. Original length sensor 9. Lens Block 10.
Page 58: Machine Details
Machine Details Laser optics unit • There are four lasers, and four sets of optics. One for each color toner (KYCM). Each polygon mirror reflects light from two LD units. • There are four PCU units, one for each color toner. It includes the drum unit and development unit.
Page 59 Machine Details continued Image transfer unit • Bias rollers located opposite the OPC drums transfer toner from the drums to the transfer belt. Four toner images are super-imposed onto the belt. Paper transfer roller unit • The ITB drive roller pushes the toner from the transfer belt to the paper (the transfer roller is an idle roller).
Page 60: Paper Path
Paper Path 1. Original tray 2. Original exit tray Refer to Section 6.1.2 SM 3. Duplex inverter 4. Duplex feed 5. By-pass tray feed 6. Tray 1 feed 7. Tray 2 feed 8. Tray 3: Optional paper feed unit/LCT 9. Tray 4: Optional paper feed unit 10.
Page 61: Drive Layout
Drive Layout Rear View Refer to Section 6.1.3 SM 1. Scanner motor: Drives the scanner unit. 2. Drum drive motor-CMY: Drives the drums for magenta, cyan, and yellow. 3. ITB (Image Transfer Belt) contact motor: Moves the ITB into contact and away from the color PCUs. 4.
Page 62: Board Structure
Board Structure BICU (Base Engine Control Unit): The BICU controls all the mechanical components. The BICU has six CPUs. The CPUs control the following functions: • Engine sequence • Engine operation • Polygon motor control • Image processing Controller: The controller connects to the BICU through a PCI bus. The controller handles the following functions: •...
Page 63: Printing Process
Printing Process ITB Drive roller Transfer Belt Drum Transfer roller Laser Optics Housing Unit 1. A latent image is written to each OPC drum by the laser unit. There are 4 separate laser beams, one for each color drum. 2. Each drum is charged with a negative charge using a charge roller. 3.
Page 64 SCANNER This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, the mechanical components of the scanner will be described.
Page 65: Optical Path
Optical Path ADF Exposure Glass Main Exposure Exposure Glass Lamp One exposure lamp 600 dpi color CCD Anti-condensation heater is optional No adjustments required in the field for the CCD and lens block Outline the optical path. In platen mode, the original is fed to the main exposure glass, and the scanner moves down the original during scanning.
Page 66: Scanner Drive
Scanner Drive Scanner Motor Motor and wire drive mechanism The same motor drives the first and second scanners. The first scanner contains the exposure lamp, reflectors, the 1st mirror, and the lamp regulator. The second scanner contains the 2nd and 3rd mirrors. The regulator is mounted on the scanner to reduce the wiring between the lamp and the regulator.
Page 67: Original Size Detection
Original Size Detection Platen Cover Sensor Reflective photosensors detect the size. APS sensors. There are two width sensors and three length sensors. The service manual shows where these sensors are located. The CPU checks the sensors when the platen cover sensor detects that the cover is being closed.
Page 68: Image Processing
Image Processing This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 69 How the Image is Processed The CCD (Charged Coupled Device) generates three analog video signals. The SBU (Sensor Board Unit) converts the three analog signals to 10-bit digital signals. It then sends these signals to the IPU (Image Processing Unit). The IPU processes the image.
Page 70 Overview ASIC RM7035 Trumpet CCUIF LOCAL PCI RiO3 Operation Panel SDRAM O pti on ASIC Controller 8.5inc h FLOC Shak er M ax. ： 3 Slots FCUIF RAPI64 M other B oard Image ASIC ASIC ASIC ASIC GASBU Taurus Lupus Strix Data P ath...
Page 71 How the SBU Processes the Signal Signal processing • Signal Amplification • Signal Composition A/D conversion White level correction Black level correction Others • The SBU controller exchanges the R and B signals if the original is scanned with the ARDF. •...
Page 72 What happens in the IPU? Shading correction Picture element (Dot Position) correction Scan line correction Image separation Auto color select Scanner gamma correction Filtering Auto Image Density Selection Color conversion Main scan magnification Printer gamma correction IPU test mode...
Page 73: Printer Gamma Correction
Printer Gamma Correction The gamma curves for C, M, Y, and K are not equal. If this causes copy quality problems, the user can do the ACC procedure. A gamma curve describes the relation between the image density of the original and that of the copy.
Page 74 Printer Gamma Correction After ACC, you can adjust the gamma curve for each color with SP 4909 to SP 4918. The following four modes are available • ID Max, Shadow (high ID), Middle (middle ID), Highlight (low ID). A gamma curve describes the relation between the image density of the original and that of the copy.
Page 75: Laser Exposure
LASER EXPOSURE This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 76 Overview Polygon Mirrors There is one laser beam for each color. • Maximum resolution is 600 dpi Two polygon mirrors are attached to the same motor. • The upper mirror reflects yellow and black. yellow • The lower mirror reflects magenta and cyan.
Page 77 Optic Components LD Units: Y, C, K, M Synch: K/M (Start) Synch: Y/C (End) Synch: Synch: K/M (End) (Start) Four LD units, one for each color. Four laser synchronization detector boards: • Two for each color (one at the front, one at the rear) •...
Page 78 Laser Synchronization Detectors Synch: K/M (Start) Synch: Y/C (End) Synch: K/M (End) Synch: (Start) Scanning start and end detection for each color. Each board handles two colors. • To determine which color beam hits the board, the machine checks the timing.
Page 79: Ld Safety Switches
LD Safety Switches + 5 V B i C U L D B ( K ) C N 5 2 1 - 1 4 C N 2 - 1 ( K ) C N 5 3 0 - 1 0 L D 5 V + 5 V S G N D...
Page 80: Automatic Line Position Adjustment
Automatic Line Position Adjustment Front Center Rear During automatic line position adjustment, the line patterns above are created eight times on the transfer belt. The spaces between the lines (YY, KK, CC, MM, KY, KC, KM) are measured by the front, center, and rear ID sensors.
Page 81 More about the Adjustments Sub scan line position for YCM • The adjustment of the sub-scan line position for YCM is based on the line position for K (color registration). − The machine measures the gaps between the lines of each color in the pattern on the transfer belt.
Page 82: Adjustment Conditions
Adjustment Conditions Line position adjustment timing depends on several SP mode settings. • The setting of SP2-193 determines the timing. • MUSIC counter: SP3-510-005 and –006.
Page 83 Main Scan Skew Correction Positioning Motor The WTLs for C, M, and Y each have a motor. The angle of each WTL can be adjusted by these motors. The angle of the WTL for black is not changed. The WTL positioning motors for magenta, cyan, and yellow adjust the angle of the WTLs for these three colors, based on the WTL position for black.
Page 84 Shutter Shutter Shutter Closed Open Shutter Motor The shutter stops dust and toner from entering the laser optics unit. The shutter opens when the polygon motor starts, and closes after the polygon motor stops. The motor moves the shutter through a cam. Two sensors detect when the shutter is open and closed.
Page 85: Service Remarks
Service Remarks SWITCH THE POWER OFF AND UNPLUG THE POWER CORD BEFORE STARTING WORK ON THE LASER UNIT Do not loosen the LD board securing screws. Do not adjust any of the VRs. Do not open the optical housing unit except servicing.
Page 87 Overview Image Transfer Drum Roller Cleaning Blade Cleaning Brush Development Lubricant Roller Application Blade Charge Roller One PCU for each color (Magenta, Cyan, Yellow and Black). • Each PCU has the same components, but they are not interchangeable (you cannot use a PCU for yellow in the cyan position, for example). Four colors are developed at the same time.
Page 88 Drum Drive - K Drum Gear Position Sensor - K Drum/Development Drive Motor - K The Drum Drive motor K also drives the development unit for K. The drum gear position sensor detects when the motor is not working. • It also ensures that the drum gear is at the correct position when printing starts.
Page 89 Drum Drive - CMY Drum Drive Motor - CMY Drum Gear Position Sensor - CMY This motor drives three PCUs. • It does not drive the development units. The drum gear position sensor detects when the motor is not working. •...
Page 90: Charge Roller
Charge Roller Drum Charge Roller Charge Roller Cleaning Roller The roller does not contact the drum (Non-contact type). There is a very small gap between roller and drum. The cleaning roller is always in contacts the charge roller.
Page 91 Charge Roller Voltage The charge roller charges the drum surface a negative charge. An ac voltage is also applied to the charge roller, at a constant current. • The ac voltage helps to ensure that the charge given to the drum is as uniform as possible.
Page 92 Quenching The laser exposes all areas of the drum at the end of each job. This removes any charges remaining on the drum.
Page 93: Drum Cleaning
Drum Cleaning Lubricant Cleaning Application Blade Blade Cleaning Roller The cleaning blade removes any remaining toner from the drum. • This toner falls onto a collection coil, and is discarded. The cleaning roller applies lubricant to the drum. The lubricant application blade makes sure that the lubricant is applied evenly.
Page 94 Waste Toner Transport from PCU Gears Auger To the Waste Toner Collection Bottle The gears at the end of the drum drives the toner collection auger. The waste toner collection bottle and collection mechanism is described in a later section.
Page 95 Development Development Mixing Roller Augers Filter TD Sensor Dual component developer TD sensor in each development unit • The TD sensor has a chip that contains information about the development unit. The filter makes sure that pressure does not build up inside the development unit.
Page 96 Development Drive - K Development Clutch Drum/Development Drive Motor - K The drum/development drive motor drives the K development unit. • This motor also drives the K drum, so a clutch is necessary.
Page 97 Development Drive - CMY Development Drive Motor - CMY This motor drives the C, M, and Y development units.
Page 98: Developer Agitation
Developer Agitation Development Mixing Roller Augers Two augers circulate the toner in the development unit. This diagram shows how the augers move the toner around inside the development unit.
Page 99: New Unit Detection
New Unit Detection The TD sensor has an ID chip. This chip tells the machine if the PCU is new or not. When the machine detects a new PCU, the machine automatically does the following: • PM counter clear for items related to the PCU •...
Page 100: Process Control
Process Control This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 101 Overview This machine has two forms of process control. Potential control Toner supply control Process control facilities of this machine have the following features: • Seven Image density sensors. Four sensors are used for process control. The other three sensors are used for MUSIC.
Page 102 Overview Transfer Belt ID Sensors The ID sensors detect the density of the ID sensor patterns created on the surface of the Transfer Belt The ID sensor board contains three ID sensors for the line position adjustments, and four ID sensors for the Process Control adjustment. (A total of 7 ID sensors on the ID sensor board)
Page 103 Overview ID Sensor Board...
Page 104 Overview By default, process control is enabled. If process control is disabled, fixed supply mode is used for toner supply, and the V stored in the SP setting is used.
Page 105: Potential Control
Potential Control The machine determines V using the ID sensor output, and then determines V and V • : Drum potential without exposure – to adjust this, the machine adjusts the charge roller voltage. • : Development bias • : Drum potential at the strongest exposure – to adjust this, the machine adjusts the laser power At the same time, the machine also determines : Reference TD sensor output, used for...
Page 106 Potential Control If potential control is disabled (SP3-041-001 set to 0), V and V are fixed by the following SP mode settings. • SP2-005 for V , SP2-229 for V If LD power control is disabled (SP3-041-002 set to 0), the LD power is fixed by the following SP mode setting.
Page 107 Types of Process Control This machine uses seven types of process control: Forced Initial Job end During a job Standby After toner end recovery After developer initialization...
Page 108 More On Process Control Process control is done only if the following conditions are met. The counter (SP3-510) is reset if a self-check is done (except for a forced self-check): • Initial − And BW Counter (SP3-510-003) ≥ Execution Interval Setting (SP3-511-005) or FC Counter (SP3-510-004) ≥...
Page 109: Flow Chart
Flow Chart Start adjustment Step 1 ID sensor solid pattern generation Step 2 Sensor pattern density detection Step 3 Toner amount calculation Step 4 selection and V adjustment Step 5...
Page 110: Step 1: Vsg Adjustment
Step 1: VSG Adjustment ID sensor: Calibrated so that the signal, when reading the bare transfer belt is 4.0 ± 0.5 Volts • This compensates for changes in the image transfer belt and ID sensor • This is always done during initial process control. This is only done if the VSG adjustment counter (SP3-510-007) is more than the value set with SP3-511-007 (default: 500) during a job or at job end.
Page 111 Steps 2 to 4: Toner Amount for Each Grade 12 mm 15 mm 10 solid grade patches between white and black are developed Each grade patch is made by changing the development bias and charge roller voltage. • The difference between development bias and charge roller voltage is always the same.
Page 112 More On Steps 2-4 The machine makes a 10-grade pattern on the image transfer belt. The development potential changes for each pattern. The development potential is the difference between the development bias and the charge remaining on the drum where the laser writes a black area. The development bias changes for each grade, so the development potential also changes.
Page 113 Step 5: Determining V , and V The machine determines the best VD (Drum potential), and then determines VB (Dev Bias), and VL (Drum Potential) depending on the calculated VD. M/A [mg/cm 0.40 Dev. Potential Step 5: VD, VB, VL Selection and VTREF Adjustment The machine determines the relationship between the amount of toner on the transfer belt and the development bias for each of the 10 grades.
Page 114 Step 5: Determining VT Target Development Gamma Range Current Development Gamma Development Bias The development gamma must be within the range indicated above in red. is adjusted so that development gamma falls within this range.
Page 115 Compensation compensation is not done by generating a pattern during a print job. It is done depending on the pixel coverage (Pixel Count).
Page 116: Toner Density Adjustment Mode
Toner density adjustment mode Toner supply mode • The machine supplies the toner to the development unit so that the current gamma becomes the target ± 0.2. Toner consume mode • The machine consumes the toner in the development unit by generating the solid patterns so that the current gamma becomes the target ±...
Page 117 Toner density adjustment mode The machine has a forced toner density adjustment mode. It is executed if SP3-011-002 is selected or before ACC if SP3-041-004 is set to 2:TC Control. In this mode, the machine adjusts the toner density by supplying the toner to the development unit, or consuming the toner in the development unit depending on the current development gamma.
Page 118 How Process Speed Affects Toner Supply Control The development motor speed depends on the process speed, and the development motor also drives the toner supply mechanism. If the motor is running faster, the toner supply clutch will not have to turn on as many times, because the required amount of toner will be supplied faster when the clutch is on.
Page 119: Toner Supply Control Modes
Toner Supply Control Modes This machine uses 3 toner supply modes. The mode used depends on SP3-044-001 to -004 PID control mode • Uses the TD sensor, ID sensor, and pixel count. • VTREF is adjusted by process control. • This is the default mode.
Page 120: Toner Near End Detection
Toner Near End Detection To determine the toner near end status, the machine relies on the following information: • Operation time of the toner attraction pump, monitored by a counter • Pixel count • Memory chip on the toner cartridge There are two different toner near-end detection procedures.
Page 121: Toner End Detection
Toner End Detection To determine the toner end status, the controller considers the following information: • TD sensor in the development unit After near end condition, − VT – VTREF ≥ 0.5 (SP3-101-021) − SUM(VT – VTREF) ≥ 10 (SP3-101-026) •...
Page 122: Developer Initialization
Developer Initialization Developer initialization is required if the developer or development unit is replaced. The machine performs developer initialization automatically when it detects a new development unit, however, it must be done manually when replacing developer. Steps The machine agitates the developer for the time specified The machine adjusts Vcnt (control voltage for TD sensor) so that Vt (TD sensor output) is within 3.0 ±...
Page 123: Toner Supply
TONER SUPPLY This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, the mechanical components of the toner supply system will be described.
Page 124 Overview To supply toner, the toner bottle is rotated. The toner is transported down a tube, and is “pulled” into the development unit by the toner attraction pump. A toner end sensor is attached to the tube, just after the outlet from the bottle.
Page 125 Toner Bottle Rotation Toner Bottle Clutches One motor controls all four bottles. A clutch (for each bottle) allows the motor to control all 4 bottles. Toner Bottle Toner Transport Motor The name of the clutch is the ‘toner bottle clutch’. The toner supply clutches control the toner attraction pumps, as we shall see later.
Page 126: Toner Bottle
Toner Bottle Shutter Transport Tube Toner Toner End Bottle Sensor When a toner bottle is installed, the transport tube pushes the shutter. This opens the bottle, and toner can flow from the bottle. The spiral grooves in the bottle allow the bottle to rotate and help to feed toner out of the bottle.
Page 127 Toner Attraction Pumps Toner Transport Motor Toner Supply Clutches One motor controls all four pumps. There is a clutch for each pump. Each toner attraction pump is driven by the toner transport motor. Each toner attraction pump has the same mechanism. The pump (toner attraction pump) has the following components: Toner supply clutch Rubber tube...
Page 128: Pump Mechanism
Pump Mechanism Toner Supply Tube (From the Clutch Toner Bottle) The pump “pulls” toner in from the toner bottle and drops it into the development unit. The shutter on the pump opens when a PCU is installed in Rotor the machine. Shutter •...
Page 129 Radio Frequency ID Chip ID Chip Antenna Board Each toner bottle has a ID chip, that sends its data to the machine via an RFID antenna board. There is no electrical contact. The data is sent by wireless communication. The chip stores the time for the toner supply clutch, not the toner bottle clutch. The toner supply clutch controls the amount of toner that is transferred.
Page 130 Radio Frequency ID Chip Diagram TRIO2-1 BiCU BICU RESET Antena eSOC Antena Board TRIO2-2...
Page 131: Waste Toner Collection
WASTE TONER COLLECTION This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, the mechanical components of the waste toner system will be...
Page 132 From the PCUs Toner Transport Waste toner from Motor the four PCUs falls onto a coil. • The toner transport motor drives this coil. This coil moves the waste toner to the toner collection bottle. Toner Collection Waste Toner Bottle Coil from the PCUs The used toner from the collection augers in the four PCUs drops into the toner...
Page 133 From the Image Transfer Belt Toner Transport Motor Waste Toner from the Transfer Belt Coil Waste toner from the transfer belt falls into a coil. • The toner transport motor drives this coil. This coil moves the waste toner to the toner collection bottle. The toner collection auger moves the used toner from the image transfer belt and the used toner drops into the toner collection duct.
Page 134 Toner Distribution in the Waste Toner Bottle Toner Transport Motor Coils The two coils in the bottle distribute the toner evenly inside the toner collection bottle. This ensures that toner does not pile up at the ends of the bottle. •...
Page 135 Toner Bottle Detection/Full Detection Waste Toner Sensor A projection on the bottle activates the bottle set switch (at the rear of the machine). When the waste toner sensor detects the actuator, a ‘near-full’ condition occurs. The machine can make 500 more copies. Then the ‘full’ condition occurs and the machine stops.
Page 136 TRANSFER This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, the image transfer, paper transfer, and paper separation mechanisms...
Page 137 Overview ITB Drive Roller Paper Image Transfer ID Sensors Transfer Belt (ITB) Roller Image Transfer ITB Cleaning Unit Roller Drum For each color, an image transfer roller “pulls” the developed toner image off the drum and onto the surface of the transfer belt. This creates a four-color (full color) toner image on the ITB.
Page 138 Overview A look at the ITB...
Page 139: Itb Drive
ITB Drive Image Transfer ITB Drive Belt (ITB) Motor ITB Drive Roller The ITB drive motor drives the transfer belt and its cleaning unit at the same time. Drive for the transfer belt cleaning unit is shown in more detail later in this section.
Page 140: Speed Control
Speed Control Encoder The encoder monitors the belt speed. The machine adjusts the motor speed, based on the output from this encoder. The speed of the belt depends on the process speed. 135 mm/s for 600 dpi resolution down the page. 77 mm/s for 1200 dpi resolution down the page, and for OHP and thick paper at all times.
Page 141 Speed Control Filter H: The number of notches read by the sensor when the rotation speed of the transfer belt is at its highest possible value. Filter L: The number of notches read by the sensor when the rotation speed of the transfer belt is at its lowest possible value.
Page 142 Current Supplied to the ITB Grounding Roller Image Transfer Rollers The image transfer rollers “pull” the toner off the drum. The grounding roller grounds the transfer belt. The terminals from the high voltage supply board come in at the rear of the ITB unit.
Page 143: Transfer Belt Cleaning
Transfer Belt Cleaning Cleaning Brush The cleaning brush loosens toner that remains on the ITB surface after transfer. The blade then scrapes this toner off the belt. • This toner falls onto a collection coil, and is discarded. Lubricant Application Cleaning Coil Roller...
Page 144 Transfer Belt Cleaning Drive Cleaning Gear Brush Lubricant Coil Application Roller The ITB drive motor drives the cleaning unit components through a gear at the rear left. This shows how the gear at the rear left of the transfer belt drives the cleaning unit..
Page 145 ITB Contact and Release - 1 ITB Contact Sensor ITB Contact Motor The belt is always in contacts the K drum. • The belt can only be manually moved away from the K drum by turning the release lever counterclockwise. The belt contacts the CMY drums for color printing only.
Page 146 ITB Contact and Release - 2 ITB Contact Sensor ITB Contact Motor The ITB contact motor moves the left side of the ITB up and down, through a cam. • Up: The belt contacts all four drums • Down: The belt contacts the K drum only The sensor detects when the belt contacts all four drums.
Page 147 ITB Contact Service Note If a power failure occurs while the belt is in contact with all 4 drums, the belt will stay in this position, and you cannot remove the ITB without damaging the drums or belt. If this occurs, open (swing out) the controller box, then turn the cam manually until the belt is fully lowered.
Page 148: Paper Transfer Unit
Paper Transfer Unit The paper transfer unit contains the paper transfer roller and the discharge plate. Discharge Plate Paper Transfer Roller (PTR) The discharge plate removes charges from the paper, and this makes it easier to separate from the transfer belt.
Page 149 PTR Mechanism Discharge Plate The PTR rotates by friction ITB Drive from the drive of the transfer Roller belt. The ITB drive roller “pushes” the toner off the surface of the belt, and onto the paper. • The PTR is grounded. It does not pull the toner off the belt, as in some models.
Page 150: Discharge Plate
Discharge Plate High Voltage Supply Board – Discharge Plate Discharge Plate The PTR is grounded. The high voltage supply board – discharge plate supplies ac to the discharge plate.
Page 151 PTR Contact Mechanism Motor Sensor The Paper transfer roller contact motor moves the PTR into contact and away from the transfer belt. Paper transfer roller HP sensor: Detects when the PTR contacts the transfer belt. The PTR contacts the transfer belt at all times, except during line position adjustment and process control.
Page 152: Paper Feed
PAPER FEED This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, the paper feed mechanisms in the copier will be described.
Page 153 Overview Registration Trays 1 and 2 uses a Rollers FRR system The Bypass tray uses Tray 1 a Feed roller and friction pad system Tray 1 holds A4 and Letter paper only Tray 2 Supports many Bypass sizes Tray Tray Capacity: •...
Page 154 Bypass Registration From Inverter There are three rollers at Rollers the bypass tray exit (in the red circle in the diagram). • The top pair feed paper from the inverter, to print the second side on duplex copies. • The bottom pair feed paper from the bypass tray.
Page 155 Drive – Trays 1 and 2 Tray 1 Paper Feed Clutch Paper Feed Motor One motor controls both paper trays. Each tray has a clutch. • During paper feed, the clutch stays on until the registration sensor detects the paper. If the tray is in the machine, the pick-up roller is always in contact with the top sheet of paper.
Page 156 Drive - Bypass Feed Roller Gear Solenoid The duplex/bypass motor drives the feed roller, through a gear at the rear. When the bypass solenoid turns on, a stopper releases the feed roller tray. shaft, and the feed roller can feed paper from the bypass •...
Page 157 Tray Detection – Trays 1 and 2 Lever Pick-up Roller (moves down) Paper Lift Sensor The tray set switch (part of the paper size switch) detects when the tray is inserted. The bar pushes the lever at the rear, and the pick-up roller drops on top of the top sheet of paper.
Page 158 Tray Lift – Trays 1 and 2 Tray Lift Motor When the tray is pushed in and detected, the tray lift motor turns on until the paper lift sensor detects the top of the stack. The paper lift sensor is on the previous slide.
Page 159 Paper Size Detection – Tray 2 Paper Size Switch End Plate Actuator Tray 2: The sensor detects the paper size. The actuator position depends on the end plate position. Tray 1 can only hold A4 or LT. • Depends on SP 5-181-1. •...
Page 160 Paper Size Detection – Bypass Tray Paper Size Sensor The position of the side plates determines the size that is detected by the paper size sensor.
Page 161 Remaining Paper Detection – Trays 1 and Tray Lift Motor Shaft Bottom Paper Height Plate Sensors The lift motor assembly contains two height sensors, and two semi-circular actuators. When paper is used up, the bottom plate is lifted and the angle of the shaft attached to the lift motor changes.
Page 162 Paper End Detection – Trays 1 and 2 Paper End Sensor Bottom Plate When there is no paper, the feeler drops into the slot in the bottom plate. Then the actuator interrupts the paper end sensor.
Page 163 Registration Registration Rollers The registration motor drives the registration rollers. Registration Motor...
Page 164 Tray Lock - Front Lock Lever The tray lock prevents the tray from coming out during shipping. Pull the handle to release the lock. • The lock lever drops when you pull the handle.
Page 165 Tray Lock - Rear If the user pulls out a tray when there is a paper jam, the paper may tear, and it is difficult to remove the jammed paper from the machine. To avoid this, if there is a paper jam, the tray lock solenoid turns on and the trays cannot be removed.
Page 166: Paper Dust Collection
Paper Dust Collection Registration Idle Roller Mylars Dust Container The mylars remove paper dust from the registration idle roller.
Page 167 FUSING This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, the fusing unit will be described.
Page 168 Overview Lubricant Roller Pressure Heating Roller Roller Fusing Belt This model uses a fusing belt system. The heating roller and pressure roller both contain lamps. • The two lamps in the heating roller are in one assembly, and are removed together. The lubricant roller supplies oil to the pressure roller.
Page 169 Temperature Control Components Thermopile Thermistor Thermostat Heating Pressure Roller Roller The following components control temperature in the fusing unit: Thermostat • Heating roller: Thermistor and thermostat • Pressure roller: Thermistor and thermostat • Thermistor Above the fusing unit: Thermopile...
Page 170 Drive Fusing/Exit Motor The fusing/paper exit motor drives Fusing the fusing roller Clutch and the heating roller. The fusing belt drives the pressure roller. The fusing clutch disengages the drive to the fusing unit when the fusing unit is not Paper operating.
Page 171: Pressure Release
Pressure Release Pressure Roller Pressure Levers The pressure levers apply the correct pressure from the pressure roller. When the cover is opened, the pressure is released, and paper jams can be removed easily.
Page 172 New Unit Detection Both the Fusing Unit and the Transfer Belt Unit have a fuse that is intact when the units are new. When the machine detects that the fuse is intact, it determines that a new unit has been installed. After several minutes, the fuse blows.
Page 173: Paper Exit
PAPER EXIT This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, the paper exit mechanism will be described.
Page 174 Overview Exit to the Inverter Tray To the Inverter The junction gate controls the paper path. • Solenoid off: To the standard tray • Solenoid on: Up to the inverter Exit to the mechanism Standard − The inverter rollers Tray feed the paper up to the inverter tray, then Junction...
Page 175 Junction Gate – To the Standard Tray To feed paper to the standard tray, the solenoid is off. • This is the default position. Junction Gate This diagram shows the junction gate configuration when paper goes to the standard tray.
Page 176 Junction Gate – To the Standard Tray Paper Paper Overflow Sensor Exit Sensor Paper Exit Rollers Fusing/Paper Exit Motor The fusing/paper exit motor drives the paper exit rollers. The paper exit sensor detects jams. If the paper overflow sensor remains activated, the machine detects that the tray is full.
Page 177 Junction Gate – To the Inverter To feed paper to the standard tray, the solenoid turns on, and the junction gate blocks the exit path to the standard tray. Inverter • The inverter rollers Rollers feed the paper up to the inverter tray, then they rotate in reverse to send the...
Page 178 Junction Gate – To the Inverter Duplex Inverter Motor Inverter Rollers The duplex inverter motor drives the inverter roller.
Page 179 DUPLEX This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, the duplex mechanism will be described.
Page 180 Overview Inverter To print on the second Rollers side, the machine feeds Inverter paper up to the inverter Tray tray. The inverter rollers then reverse the feed direction, and the paper goes to the duplex unit. The duplex unit feeds the inverted paper back to Standard the paper feed section.
Page 181 Drive Duplex Entrance Duplex Inverter Sensor Motor Two motors control the rollers in the duplex unit. • Duplex inverter motor • Duplex/bypass motor Two sensors control the paper feed timing and detect jams. • Duplex entrance Duplex sensor Bypass • Duplex exit sensor Motor Duplex Exit...
Page 182: Inverter Mechanism
Inverter Mechanism Simplex Duplex This machine uses the switch back system for duplex printing.
Page 183: Duplex Operation
Duplex Operation Up to A4/LT (81/2" x 11") LEF There are two sheets of paper in the feed path. The interleave method is used. 1st side 2nd side...
Page 184: Controller Function
Controller Function...
Page 185 Overview Controller board I/F Card Slot & SD Card Slot Browser Unit Copy Data Security Unit PictBridge The controller is based on the GW (Grand Work) architecture. CPU: RM7035C-600 MHz ASIC: This is one of the GW-architecture ASICs. : GW architecture ASIC. It controls the interface with the CPU and controls these functions: memory, local bus interrupts, PCI bus, video data, HDD, SD card for booting and image processing.
Page 186: Controller Board
Controller Board IEEE1284 I/F IEEE1394 I/F Bluetooth File Format USB Host IEEE802.11b Converter PCI I/F A PCI I/F B PCI I/F C Controller Flash ROM 32 MB B U S Trumpet Shaker SD Slot #2, #3 NV RAM 128KB SDRAM SD Slot Network Engine I/F...
Page 187: I/F Card Slot
I/F Card Slot & SD Card Slot I/F Card Slot • Slot A : IEEE 1394 or USB Host • Slot B : IEEE 1284 or IEEE 802.11b or Bluetooth • Slot C : File format converter SD Card Slot •...
Page 188: Browser Unit
Browser Unit Function of the Browser Unit • The Browser Unit is used with the server application • It enables you to display information from the server on the display panel. • The Browser Unit is a kind of the extension application with the VM option.
Page 189: Copy Data Security Unit
Copy Data Security Unit Function • The machine outputs a grayed-out print and sounds a buzzer when prints are made using the RPCS driver with “Unauthorized Copy Prevention”. UP/SP Setting • UP: User Tool/System Settings/Administrator Tool • SP 5-178-001:Copy Data Security Setting 0: Disabled, 1: Enabled...
Page 190 Copy Data Security Unit • SC165 • If the Copy Data Security Unit is removed when the Copy Data Security Setting is On (SP5-178-001:”1”), SC165 will occurred. • This SC prevents the unauthorized removal the Copy Data Security Unit. Limitations •...
Page 191 PictBridge General Function • A PictBridge-compatible DSC (Digital Still Camera) can be connected to the machine using USB cable. • The photograph in the DSC can be printed directly from the DSC.
Page 192 PictBridge – Printing Function Single Image Print • Print an image displayed on the DSC • The image is enlarged and rotated to match with paper (The image aspect ratio is not changed) Landscape Portrait...
Page 193: Date And File Name Printing
PictBridge – Printing Function Date and file name printing • Print images with a date stamp and file name − Position: Under the image, centering − Color: Black − Font: Arial − Size: 6pt – 16pt (depending on the printing size) Image print size (Fixed size printing) •...
Page 194: Printing Quality
PictBridge – Printing Function Printing quality • Normal or Default : 600dpi x 600dpi, 2bit • Fine : 600dpi x 600dpi, 4bit Color matching (priority) • OFF or Default: Gradation • ON: Saturation Paper type specification • Default: Auto tray selection •...
Page 195 PictBridge – Error Notification Printer status information displayed on the DSC • Connection establishment • Printer error • Printing progress • End of print job • Cable can be safely disconnected Printer error • Data error • Memory error • Service call •...
Page 196: Photo Image Format
PictBridge Photo image format • Exif/JEPG • JFIF • TIFF/MMR (RICOH only) Note • Impossible to connect two DSCs in same time.
Page 197 Options This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will review the details of the options for the B230/B237...
Page 198 This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will do these things: Learn how the ARDF operates...
Page 199 Overview The ARDF is a standard option It feeds originals above the main copier's DF exposure glass during scanning. • The DF exposure glass is a narrow glass to the left side of the exposure glass. The ADF does not use the main exposure glass.
Page 200 Original Size Detection One width sensor, and two length sensors • Width sensor: The output is controlled by the position of the guides The width sensor has four possible outputs. The table shows the sizes that the machine detects for each output. For the width sensor, the output is controlled by the position of the guides.
Page 201 Mixed Original-Length Mode Width detection: Same as for normal mode Length detection: Done for each sheet • As a result, scanning is slower if the user selects mixed size mode To detect length, the machine counts transport motor pulses from ‘registration-sensor-on” until “registration-sensor-off”...
Page 202: Pick-Up And Separation
Pick-up and Separation A pick-up solenoid lifts the entrance guide, to bring the stack of originals up to the pick-up roller The transport motor controls all the rollers in the DF The feed clutch controls the pick-up roller and feed belt Main points about the timing chart The transport motor has two speeds.
Page 203 Original Transport and Feed-out - Single-sided Transport motor: Feeds the original through the scanner Motor speed is set by the reproduction ratio The machine scans the original through the DF exposure glass. The original stops at the registration sensor. But, there is no skew correction at this time (this is because the feed motor in the ADF stops).
Page 204 Original Transport and Feed-out - Double-sided 1 Original exit sensor Junction Gate When the original exit sensor detects the leading edge of the paper, the junction gate opens and the original goes to the reverse tray. The main points are on the next pages To study the mechanism in more detail, use the timing chart.
Page 205 Original Transport and Feed-out - Double-sided 2 When the paper is in the reverse tray, the DF feed motor changes direction and the reverse roller feeds the original into the ARDF again.
Page 206 Original Transport and Feed-out - Double-sided 3 The rear side is scanned The original is fed to the reverse tray again • The page goes to the inverter mechanism again. • This stacks the pages of the original in the correct order.
Page 207 Original Transport and Feed-out - Double-sided 4 The page is fed in from the reverse tray and out to the exit tray.
Page 208 Stamp (Fax and Scanner) The stamp is used in fax mode or in scanner mode only. The original is stamped if the original was sent successfully in Fax mode. • For memory transmission and scanning, the original is stamped if it is stored successfully.
Page 209 Dust Detection (SP 4020) This function checks the ADF exposure glass for dust, which can cause black lines in copies. If dust is detected, a message is shown on the operation panel, but the machine does not stop. SP 4020 001: Enable/disable (default – disabled) SP 4020 002: Sensitivity adjustment SP 4020 003: Adjusts image processing parameters to remove thin vertical lines that are caused by dust (default –...
Page 210: Paper Tray Unit
PAPER TRAY UNIT This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will study the mechanisms of the optional paper feed unit...
Page 211: Paper Feed And Separation
Paper Feed and Separation The paper feed motor controls all rollers in the paper feed unit. Each tray has a clutch. The machine uses an FRR (feed and reverse roller) system.
Page 212: Paper Size Detection
Paper Size Detection Paper size switches detect the paper length • The position of the sensor actuator is controlled by the position of the end fence Only the length is detected directly. The actuator has patterns of studs on the rear. These studs turn the paper size switches on/off.
Page 213 Separation and Pick-up Roller Release Mechanisms The release mechanisms prevent damage to paper that jams between the pick-up and separation rollers when the tray is pulled out in a jam condition.
Page 214: Tray Lift
Tray Lift After the tray is pushed in and detected: • The Tray lift motor lifts the tray until the lift sensor detects the top of the stack at the feed position The main points are shown above. Note that the 'upper limit sensor' in the service manual is called the 'lift sensor' in the component layout and point-to-point diagram.
Page 215: Paper Height Detection
Paper Height Detection Two paper height sensors detect the quantity of paper in the tray and the op panel displays this information to the user. After paper is used, the tray moves up, and the actuator on the shaft turns anti- clockwise (as seen on the diagram).
Page 216: Large Capacity Tray
LARGE CAPACITY TRAY This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will study the mechanisms of the optional LCT.
Page 217 Overview This LCT has a tandem mechanism • The tray holds two stacks of copy paper • The second stack is moved into the paper feed position when the first stack is fully used up. This LCT contains a tandem mechanism. In this type of mechanism, a new stack of paper is moved into the paper feed position when one stack is fully used.
Page 218 Paper Feed The tray motor controls all rollers in the LCT. The paper feed and relay clutches transfer drive from the tray motor to the feed and relay rollers at the correct times. This LCT uses a feed and reverse roller (FRR) mechanism.
Page 219 Reverse Roller Release Reverse roller When the tray is pushed into the machine, the side of the tray moves the roller up until it touches the pick- up roller. When the tray is removed, the reverse roller moves away from the pick-up roller. This mechanism prevents damage to paper that is caught between the pick-up and reverse rollers when the tray is removed.
Page 220: Pick-Up Roller Release
Pick-up Roller Release Pick-up roller When the tray is pushed into the machine, the side of the tray moves the roller up until it touches the pick-up roller. When the tray is removed, the reverse roller moves away from the pick-up roller. This is the other half of the mechanism that is shown on the previous slide.
Page 221 Tray Lift Lower limit The tray sensor detects sensor when the tray is pushed in, then the lift motor begins to turn The paper stack pushes up the pick-up roller, and the actuator moves into the upper limit sensor. Tray lift stops.
Page 222: Remaining Paper Detection
Remaining Paper Detection Paper Storage Side Paper Feed Side Paper End Sensor 1 Paper Height Sensor 1 Paper Height Paper Height Sensor 5 Sensor 2 View of the LCT, from the Paper Height Paper Height front, Sensor 4 Sensor 3 towards the rear.
Page 223 Paper End Detection - Right Tray When there is no paper in the right tray, the feeler falls out of the sensor. When the tray is pulled out of the machine, the pick-up roller release mechanism lifts the feeler. This prevents damage to the feeler.
Page 224 Side Fence Movement When the right tray is empty: Tray motor [A] and stack transport clutch [B] turn on. This moves the rear fence [C], and the stack of paper goes from the left tray to the right tray. During paper feed, the clutch is always off. Because of this, the tray motor does not try to push the stack from left to right.
Page 225: Changing The Tray Paper Size
Changing the Tray Paper Size If the customer wishes to change the paper size, a service professional must make adjustments to the machine. The customer cannot do this procedure. Check the paper size at installation, or it could be necessary to make an unwanted trip to the customer soon after installation.
Page 226: Shift Tray
SHIFT TRAY This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will study the mechanisms of the optional shift tray.
Page 227 Overview The shift tray is similar to an output tray, however, it sorts outputs into different stacks To accomplish this, it moves the tray from side to side. This is called 'shift sorting' and is faster than rotation sorting. • For rotation sorting, the image must be rotated in memory, and this slows productivity.
Page 228: Basic Operation
Basic Operation Tray Cover The tray cover moves from side to side The square platform on the disk fits into the groove on the bottom of the tray • It is off center and loosely connected, so the disk can rotate about the central shaft, and the square platform moves up and down the...
Page 229: Tray Shift
Tray Shift Sensor The tray motor drives the central disk • The shaft is at the centre of the disk The half turn sensor detects when the tray has moved fully to the left or right Motor...
Page 230: One-Bin Tray
ONE-BIN TRAY This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will study the mechanisms of the optional one-bin tray.
Page 231 Overview This unit adds a one-bin output tray. It does not replace the tray that is supplied with the machine. It is not a sorter, because the tray and/or the rollers do not move from side to side. The advantage is, with more than one output tray, the user can (for example) send copy-mode outputs to the standard output tray, and fax-mode outputs to the 1-bin tray.
Page 232: Bridge Unit
BRIDGE UNIT This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will study the mechanisms of the optional bridge unit.
Page 233 What is a Bridge Unit? The bridge unit sends copies to the finisher, or sends them to an output tray on top of the bridge unit. The bridge unit is necessary if a finisher will be installed.
Page 234 Drive The bridge unit drive motor drives the paper transport rollers and exit roller through gears and timing belts. Power comes from the copier's main motor. A junction gate sends copies to the finisher, or to the output tray on top of the bridge unit.
Page 235: Electrical Component Layout
Electrical Component Layout 1. Left Guide Switch 2. Right Guide Switch 3. Junction Gate Solenoid 4. Tray Exit Sensor 5. Bridge Unit Control Board 6. Bridge Unit Drive Motor 7. Relay Sensor...
Page 236: Junction Gate Mechanism
Junction Gate Mechanism Solenoid on: If the gate is down, paper goes to the tray on top of the bridge unit Solenoid off: If the gate is up, paper goes to the finisher...
Page 237: Sheet Finisher
500-SHEET FINISHER This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will study the mechanisms of the optional 500-sheet finisher.
Page 238: General Layout
General Layout Stack Height Paper Exit Unit Detection Lever Output Tray Jogger Tray The is no optional punch unit for this 500 sheet finisher The output tray moves down when the stack gets thicker. The output tray does not move from side to side to sort the copies. Because of this, it is not called a shift tray.
Page 239 Components Exit Roller Entrance Sensor Stack Sensor Stack Height Sensor Stack Motor Cover Switch Stack Height Solenoid Stapler Slide Motor...
Page 240 Components Motor Rear Jogger Motor Transport Motor Front Jogger Motor Control Board Tray Motor Limit Sensor 1 Limit Sensor 2...
Page 241: Drive Layout
Drive Layout Main Motor Output Tray Motor The output tray motor moves the output tray up and down, with two sector gears. Sensor actuators are attached to these gears to tell the machine when the tray is at its upper or lower limit position. The main motor turns all the other rollers (it is not clearly shown in this diagram).
Page 242: Stack Height Detection
Stack Height Detection Lever Sensor The stack height lever solenoid moves the detection lever to the top of the stack Stack Height The stack height Detection Lever sensor and lever sensor makes sure that the top of the stack is at the correct height.
Page 243 Output Tray Drive Output Tray Drive Gear Output tray motor: Moves the output tray up or down if the top of the stack is not at the correct height Stack near-limit sensor: Detects when the tray Stack Near-limit Sensor cannot be moved down more Upper limit sensor: Detects when the tray...
Page 244 Finisher Modes Straight feed-out • Paper goes directly to the output tray without sorting or stapling Shift sorting • Even-numbered sets are moved slightly to one side before they are fed to the output tray. − Pages in even-numbered sets are collected in the jogger tray, and moved to one side before they are fed out.
Page 245 Paper Path to the Jogger Finisher Stapler Duplex Unit Standard Paper Exit Interchange Unit This drawing shows the G071 printer. For the B156, the finisher is attached to the left side of the copier, and paper goes in at the right side of the finisher. The main point of this diagram is to show the jogger tray, and the mechanism is the same.
Page 246 Straight Feed-out - Paper Feed Path Exit Rollers Exit Unit The exit unit must be down to feed paper out to the output tray. To feed the paper out, the finisher holds the paper between the two exit rollers. To do this, the finisher must move the exit unit down as shown on the next slide.
Page 247 Straight Feed-out - Exit Unit Drive Paper Feed-out Standby Mode The main motor turns the exit unit gear, through the idle gear. The exit unit gear: • Pulls the exit unit link, which pulls down the exit Exit Unit unit •...
Page 248 Shift Sorting - Reversing Mechanism For odd-numbered sets, Paddle Roller each page is fed straight Solenoid For even-numbered sets, each page goes back to the jogger tray and is shifted to one side • They are fed out later as a set, shifted to one side.
Page 249 Shift Sorting - Jogging Jogger Jogger Fence HP Sensor Stapler Jogger Motor The jogger motor moves the jogger fence. • The fences jog every page The jogger home position sensor detects when the jogger fence is at the home position after jogging a page. Tray capacity: 30 sheets Larger sets are fed out 30 pages at a time.
Page 250 Shift Sorting - Paper Feed Path Paddle Exit Unit Roller Exit Unit Moves Up Reverse Jogger Tray Roller To feed paper back to the jogger tray, the exit unit must be up. This is a side view of the paper feed path back to the jogger tray. The exit unit is up.
Page 251 Stapling To staple a set of copies: • The exit unit moves down until the exit unit switch turns on. • The main motor stops • The stapler unit starts After stapling: • The exit unit completes its downward movement after stapling, to feed out the set.
Page 252: 1000-Sheet Finisher
1000-SHEET FINISHER This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved. In this section, you will study the mechanisms of the optional 1000-sheet finisher.
Page 253 General Layout This finisher has two trays. The lower tray can be used for shift-sorting and stapling. The upper tray cannot be used for shift sorting or stapling • The lower tray does not move from side to side. A roller in the machine (the shift roller) moves from side to side, to accomplish shift sorting.
Page 254: Junction Gates
Junction Gates Tray Junction Gate The tray junction gate sends paper out to the upper tray, or down to the lower tray. If paper goes to the lower tray, the stapler junction gate sends the paper to the stapler or out to the lower tray.
Page 255: Upper Tray
Upper Tray For the upper tray, no shift-sorting or up/down mechanism is used. The paper limit sensor detects when the tray is full If the paper limit sensor turns on during a sequence of three pages, the tray is full. Then the subsequent pages go to the lower tray.
Page 256 Lower Tray Up/Down Mechanism Stack Height Sensor Stack height sensor: Detects the top of the stack Lower tray lift motor: Moves the tray up/down until the top of the stack is at the correct position Lower Limit Lower tray lower limit Sensor Lift Motor sensor: Detects when the...
Page 257: Shift Mechanism
Shift Mechanism Shift HP Sensor Shift Motor The shift motor moves the shift roller from side to side, after the roller catches the sheet of paper that is fed out After the sheet is fed out, the shift roller moves back to home position •...
Page 258: Jogger Unit
Jogger Unit The stapler tray entrance sensor, detects paper when it is fed into the jogger tray Then, the positioning roller solenoid activates and the positioning roller pushes the paper against the bottom of the jogger tray Next, the jogger motor moves the jogger fences into position...
Page 259 Exit Guide Plate Open/Close Motor The exit guide plate Sensor motor: • Moves the exit guide plate up when a stack is stapled − This is necessary to create sufficient space between the exit rollers for long paper (for example, 11 X 17) •...
Page 260 Stapler Staple hammer motor [A]: Operates the stapler Staple sheet sensor [B]: Makes sure that there is a sheet of staples at the stapling position Staple sensor [C]: Detects when there are no staples Stapler rotation HP sensor [D]: Makes sure that the staple hammer mechanism moves back to the home position after each stapling operation The staple hammer is controlled by a gear in the stapler unit.
Page 261: Stapler Unit Movement
Stapler Unit Movement Motor Sensor The stapler motor moves the stapler from side to side for the two-staple position mode The stapler HP sensor after the job, the stapler moves back to this position To save time and energy, the stapler moves from front to rear and from rear to front on alternate sets.
Page 262 Stack Feed-out Stack feed-out motor: Feeds the stapled stack out Stack of the jogger tray Feed- Stack feed out belt Motor HP sensor: Detects when the belt is at home position Sensor The stack feed-out belt feeds the stack out to the shift roller. The pawl on the belt lifts the stack.
Page 263 Transporting the Finisher Before you pack the finisher for transport: • Set DPS100 switch 1 to 1 (to lower the tray) then back to zero. − This moves the lower tray to the lowest position. • Once the tray is in the lowers position, turn off the main switch.
Page 264: 1000 Sheet Booklet Finisher
1000 sheet Booklet Finisher This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 265 Overall Punch Unit Same system as B700 (SR980) Exit Guide Plate Paper Shift Same system As B408 (SR790) Fold Mechanism Same system as B700 (SR980)
Page 266: Mechanical Component Layout
Mechanical Component Layout Proof Tray Proof Tray Exit Roller Sift Tray Proof Tray Junction Gate Punch Unit Exit Guide Plate Staple Tray Junction Gate Positioning Roller Clamp Roller Stack Feed Out Belt 2nd Clamp Roller Staple Unit Folder Plate Booklet Tray Folder Roller...
Page 267: Electrical Component Layout
Electrical Component Layout 1 Proof Tray Full Proof Tray Exit Sensor Sensor Exit Guide Plate HP Sensor Exit Guide Plate Motor Entrance Sensor Shift Tray Exit Sensor Front Door Safety Switch Upper Limit Switch Staple Tray Exit Sensor Upper Cover Sensor Staple Tray Gate Solenoid Shift Tray Position Sensor Proof Tray Gate...
Page 268 Electrical Component Layout 2 Stack Feed Out Motor Exit Guide Plate HP Sensor Jogger Motor Jogger HP Sensor Upper Retraction Motor Staple Tray Paper Sensor Stopper S HP Sensor Stapler Unit Motor Stack Feed Out HP Sensor Stapler Safety Sensor Staple Unit HP Sensor Fold Cam HP Sensor Fold Roller Motor...
Page 269 Electrical Component Layout 3 Punch Board Paper Position Sensor Motor Punch Motor Paper Position Sensor HP Sensor Paper Position Sensor Punch Encoder Sensor Fold Cam Hp Sensor Punch Hopper Full Sensor Punch Movement HP Sensor Punch Movement Motor...
Page 270: Junction Gate
Junction Gate Mode Proof Shift Staple Paper path Proof Tray Gate Sol. Staple Tray Gate Sol. Two junction gates control the path of paper. Each junction gate is controlled by a solenoid. Junction gate operation is summarized in the following table.
Page 271: Proof Tray
Proof Tray Proof Tray Exit Roller Proof Tray Exit Sensor Proof Tray Transport Roller Proof Tray Full Sensor Proof Tray Gate Entrance Roller Transport Roller Proof Tray Gate is controlled by the Proof Tray Gate Solenoid Jam Detection is done by the Proof Tray Exit Sensor Tray Full detection is done by the Proof Tray Full Sensor The Proof Tray Exit Roller and Proof Tray Transport Roller are driven by the Upper Transport Motor...
Page 272 Shift Tray Upper Limit Switch Shift Tray Position Sensor Shift Tray Motor Lower Limit Sensor Tray Up/Down Control is controlled by the Shift Tray Position Sensor Shift Mode : Every 5 sheets • •Staple Mode : Every stack Tray Full is detected by the Lower Limit Sensor The Upper Limit Switch prevent overdriving of the tray Tray Drive is controller by Shift Tray Motor The shift tray motor moves the tray up and down.
Page 273 Paper Shift Shift Roller HP sensor Shift Roller Motor Shift Roller Mode : Shift or Stack Transport Speed : 60% Timing : Every sheet Side to side movement : Shift Roller Motor Shift Roller Drive : Upper Transport Motor The shift motor moves the shift roller from side to side. The shift motor HP sensor detects when the mechanism is at home position.
Page 274: Jogger Unit Paper Positioning
Jogger Unit Paper Positioning Jogger Motor Jogger Fence Jogger HP Sensor Positioning Roller Staple tray Exit Sensor Mode : Staple or Booklet Jogger Fence Drive : Jogger Motor Positioning Roller Movement : Positioning Roller Solenoid Positioning Roller Drive : Lower Transport Motor Jam Detection : Staple Tray Exit Sensor The jogger is used in corner-staple mode and in booklet mode.
Page 275: Exit Guide Plate / Paper Feed Out
Exit Guide Plate / Paper Feed Out Exit Guide Plate Motor Exit Guide Plate HP Sensor Stack Feed-out Motor Pawl Stack Feed-out Belt HP Sensor When the exit guide plate is open, it prevents paper from running in to exit roller during staking. Paper is sent to staple tray (11 X 17 paper). This is done every sheet Exit guide plate drive : Exit guide plate motor Feed-out belt drive : Stack feed-out motor...
Page 276 Stapler Unit Movement Stapler Unit Motor Stapler Unit Stapler Safety Sensor Stapler Unit HP Sensor The machine has only one stapler. It does stapling for booklets and for corner stapling. The stapler unit motor moves the stapler from side to side. The stapler unit HP sensor detects when the stapler unit is at home position.
Page 277 Lower Clamp Roller / Bottom Fence Fold Roller Motor Bottom Fence Lift Motor Lower Clamp Roller Lower Clamp Roller HP Sensor Bottom Fence HP Sensor Bottom Fence Lower Retracting Motor First, the upper clamp roller feeds the stack down after the stack has been stapled. When the lower clamp roller catches the stack, the upper clamp roller stops, and the lower clamp roller feeds the stack down.
Page 278 Fold Fold Plate HP Sensor Fold Plate Fold Roller Motor Fold Plate Motor Fold Roller The fold plate pushes the stack into the nip between the fold rollers. The fold rollers feed out the stack, then reverse to feed it back in again. Then, the fold rollers feed the stack out of the folder, to the booklet tray.
Page 279: Skew Correction Before Punching
Skew Correction before Punching Entrance Roller Entrance Sensor The entrance roller corrects the skew SP6103 : Entrance roller stop time SP6104 : Enable skew correction or not The finisher entrance roller corrects for paper skew and then the punch unit moves across to punch the holes at the correct position.
Page 280: Punch Unit Position Correction
Punch Unit Position Correction Paper Position sensor Punch Unit HP Sensor Paper Position sensor Punch Unit HP sensor ① Checks the paper edge position by the paper position sensor ② Moves the punch unit to the adjusted position from its home position, the paper position sensor moves back to its home position ③...
Page 281: Punch Position Adjustment
Punch Position Adjustment SP6102 SP6101 Punch position adjustment SP6101 : Direction of paper feed SP6102 : Direction to front or rear side of machine...
Page 282 Paper Position Detection Paper Position Sensor HP Sensor Paper Position Sensor Motor Paper Position Sensor Paper Position Sensor Motor : Moves the paper position sensor Paper Position Sensor : Detects the edge of the paper Paper Position Sensor HP Sensor: Detects the home position of the paper position sensor The paper position sensor slide motor extends and retracts the paper position slide that holds the paper position sensor.
Page 283: Punch Unit Movement
Punch Unit Movement Punch Drive Motor Punch Movement HP Sensor Punch Movement Motor Punch Movement Motor : Moves the punch unit Punch Movement HP Sensor: Detects the home position of the punch unit Punch Drive Motor : Fires the punches The punch movement motor extends and retracts the punch unit to put it at the correct position for punching.
Page 284 Punch Hopper Punch Hopper Punch Hopper Full Sensor The Punch hopper full sensor has two functions: Punch is full or not Punch hopper is set properly or not The punch movement motor extends and retracts the punch unit to put it at the correct position for punching.
Page 285: Dip Switches
DIP Switches SW102 SW100 Move the tray position Adjust the staple position for booklet mode Function Function ON : 0.3 mm Move the tray position to shipping position ON : 0.6 mm ON : 1.2 mm Not used Direction OFF : Down ON : Up SW101 Adjust the fold position Function...
Page 286: Preventive Maintenance
Preventive Maintenance This presentation is the intellectual property of Ricoh University and may not be duplicate or distributed in any format. Copyright © 2000-2005 Ricoh US Corporation. All Rights Reserved.
Page 287 PM Interval item 160K 240K 320K Dev. Unit K,C,M,Y Drum Unit K,C,M,Y Developer K,C,M,Y R: Replace...
Page 288: Drum Unit
Drum Unit When installing the new drum unit : - Clean the toner around the entrance sheet of development unit - Do not touch the bearing Entrance sheet Bearing New unit set & PM counter reset item Drum Unit K,C,M,Y SP3-902-009 to -012 The development unit (which is part of the PCU) must be separated from the PCU when installing developer.
Page 289 Developer New unit set & PM counter reset item Developer K,C,M,Y SP3-902-005 to -008...
Page 290: Image Transfer
Image Transfer PM Interval item 160K 240K 320K Image transfer belt cleaning unit Image transfer belt unit R: Replace Image transfer belt is an EM Part.
Page 291 Paper Transfer PM Table Item Execution item Execution interval Remarks ─── Paper Transfer Unit 240K...
Page 292: Toner Collection Bottle
Toner Collection Bottle PM Interval item 160K 240K 320K Toner collection bottle R: Replace When replacing the toner collection bottle : Remove the cap , and then attach the cap on the hole of the toner collection bottle before taking it out.
Page 293 Fusing PM Tables Item Execution item Execution interval Remarks Fusing Belt 160K ↑ Symbol key Pressure Roller S552R • ↑ C: Clean -Bearing • R: Replace ↑ Fusing Roller S552R • L: Lubricate ↑ -Bearing ↑ Heating Roller ↑ -Insulating Bushing ↑...
Page 294: When Reassembling The Fusing Unit
Fusing Notes & Points When reassembling the fusing unit • When replacing the fusing roller or pressure roller, you have to apply lubricant to the following locations: Fusing Roller Apply "Barrierta S552R” along with the notch [A] at the front side of the fusing roller. Apply "Barrierta S552R"...
Page 295 PM Parts Item 80K 160K 240K 320K EM Remarks Scanner Scanner Reflector Optics cloth 1st/ 2nd/ 3rd mirrors Optics cloth Front and rear rails Dry cloth Exposure glass C Dry cloth; alcohol ADF exposure glass C Dry cloth; alcohol Exposure lamp APS sensor C Dry cloth Paper path...
Page 296: Sheet Booklet Finisher
PM Parts EM Remarks ARDF Pick- up roller C Damp cloth; alcohol Feed belt C Damp cloth; alcohol Separation roller C Damp cloth; alcohol Sensors C Blower brush Platen sheet cover C Damp cloth; alcohol (Replace if required) W hite plate C Dry or damp cloth Drive gear Grease G501...

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