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B234/B235/B236 UPDATE TRAINING REFERENCE MANUAL...
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It is the reader's responsibility when discussing the information contained within this document to maintain a level of confidentiality that is in the best interest of Ricoh Corporation and its member companies. NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FASHION AND DISTRIBUTED WITHOUT THE PRIOR PERMISSION OF RICOH CORPORATION.
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The Reference Manual contains information regarding service techniques, procedures, processes and spare parts of office equipment distributed by Ricoh Corporation. Users of this manual should be either service trained or certified by successfully completing a Ricoh Technical Training Program. Untrained uncertified...
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LEGEND PRODUCT CODE COMPANY GESTETNER LANIER RICOH SAVIN B234 DSm790 LD190 Aficio MP9000 8090 B235 DSm7110 LD1110 Aficio MP1110 8110 B236 DSm7135 LD1135 Aficio MP1350 8135 DOCUMENTATION HISTORY REV. NO. DATE COMMENTS 05/2006 Original Printing...
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How many models? Three models • B234: 90 cpm • B235: 110 cpm • B236: 135 cpm The fusing unit for B236 is different. We will study this later. There are no other differences in the specifications between these three...
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Company Model Numbers? PRODUCT COMPANY CODE GESTETNER LANIER RICOH SAVIN B234 DSM790 LD190 AFICIO 8090 MP9000 B235 DSM7110 LD1110 AFICIO 8110 MP1110 B236 DSM7135 LD1135 AFICIO 8135 MP1135 The fusing unit for B236 is different. We will study this later.
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Product Concept New standard in light production environment with more durability, higher productivity & color scanner Enhanced Professional & Simple Reliability & Durability Operation High-Performance Variety of new Capability Functions...
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High Performance Capabilities (3 new products introduced): • New Aficio MP 9000/1100 (replaces older 90/105ppm systems) • Newly introduced MP1350 is Ricoh’s fastest MFP (135 ppm) • Wide Range of Paper Latitude (2 new types of Large Capacity Trays) Enhanced Reliability and Durability •...
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Appearance Here is a view of the machine with a full range of options installed. •More than one type of finisher is available. •More than one finisher can be installed on the machine at the same time. In the above example, a saddle stitching unit and a z-folder are installed in addition to a finisher with punch unit.
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Targeted Users A294 Series or B070 Series users who are looking for new copiers Users of other makers’ 80 cpm + digital and analog copiers New market: 135 cpm range (B236 copier only)
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Product Concept Improved Engine • More durable and more reliable Less down time during PM • Trained customers will replace many engine components New and improved features • A wide range of finishing options (for example: z-folding, booklet stapler, cover interposer) •...
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Marketing Strengths (1) High-Performance capability New input & output devices 1. New 2 source interposer 2. New saddle stitch box 3. New 13” x 18” Large Capacity Tray High-speed Finishing Improved stapling accuracy / finishing alignment Better productivity in 2 stapling...
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Marketing Strengths (2) Professional & Simple Operation New 10.4” easy to use color operation panel • Operation guidance at jam with animation Regular Screen Simplified Screen...
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Marketing Strengths (3) Regular Screen Here is the display panel. It is similar to the B070. Most of the buttons will be familiar from other models.
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Marketing Strengths (4) Simplified Screen Here is the display panel. It is similar to the B070. Most of the buttons will be familiar from other models.
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Marketing Strengths (5) Professional & Simple Operation Thumb-nail view on Document Server Delivery scanner < Thumbnail view> <Preview>...
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Marketing Strengths (7) Variety of new features High-speed color scanning capability by 4 channel color CCD Same scan speed as B/W in 200 dpi mode The following features improve color registration and prevent uneven image density Newly-designed 4-channel color CCD Dual-light scanning system &...
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Product Features - What’s New and Improved Feature B070/B071 Series B234/B235/B236 Series OPC Drum Yield 700K 2000K Maximum Print Speed 90/105ppm 90/110/135ppm Paper Weights Supported Up to 80lb cover 80 lb.cover in all trays* (only with LCT) Maximum Size Throughput 12”...
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Product Features - What’s New and Improved Feature B070/B071 Series B234/B235/B236 Series New Duplex Feeding System Yes- provides better duplex productivity New Super VGA Touch Panel Color Display with simple and advanced views Thumbnail Preview with the Document Preview jobs on either the...
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Product Features - What’s New and Improved Feature B070/B071 Series B234/B235/B236 Series PM Cycle (system) 350K 500K EM Cycle(system) 150K 230K/280K/400K TCRU Toner 55K/bottle New 60k/bottle Developer 350K New 500K/bag Staple Several Types New Type M only GBC StreamPunch GBC SPII...
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Improvements to the Engine – Drum 1) Additional layer (BL: Blocking Layer) 2) Thicker “Carrier Transfer Layer “(CTL), from 32 to 38μm 3) The B234 series and B070 Series drums are not the same. They are not interchangeable. Benefits This layer is thicker •...
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Improvements to the Engine – 2 Around the Drum Improved Charge Corona Unit isolation to prevent current leakage Newly added Pre-Charge Unit to increase sensitivity retracted cleaning blade removes built-up toner & reduces cleaning unit internal air pressure Increased developer yield 500K Surface of cleaning roller Improved smoothness...
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Improvements to the Engine - Fusing Unit 1. Hot roller: Diameter increased from 70 mm to 80 mm 2. Pressure roller: Diameter increased from 70 to 80 3. Cleaning web: Length increased from 20 to 24 m 1. Hot roller: Diameter increased from 70 mm to 80 mm 2.
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Less Down Time Trained Customer Replaceable Units (TCRU) 3. Development unit 4. Drum 1.Fusing unit 5. Cleaning unit 2.Cleaning 6. Charge corona unit fabric roll 7. Pre-charge corona unit * Operator training is mandatory so that users can replace these units. •...
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TCRU Replacement Fusing Cleaning Web Fusing Unit Charge & Pre-Charge Coronas Cleaning Unit Drum Unit Development Unit The units indicated above are all accessible to the end user and can be changed with little effort.
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(immediately after the paper leaves the tray). It gets smaller as the paper gets closer to the registration rollers. The diagram at the bottom right shows that the average size of the gap between sheets of paper is smaller in the B234 Series than in the B070 SeriesE.
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New and Improved Features – 2 Wide Range of Paper Types Up to 80lb Cover: All trays except tray 6, the bottom tray of A4/LT LCT Up to 13” x 18” Paper will fit various tray. BUT IS NOT RECCOMMENDED Various paper type settings •...
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New and Improved Features – 3 Double-feed Detection Light receiver When the machine detects a multi-feed, unnecessary paper is fed out to the proof tray without stopping the machine. Registration rollers The machine checks if there is a multi-feed by measuring the strength of the light that goes through the paper.
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New and Improved Features – 4 Color Scanner The following features improve color registration and prevent uneven image density • Newly-designed 4-channel color CCD • Dual-light scanning system & oval reflectors...
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New and Improved Features – 5 Better Image Registration on the Paper Contact Image Sensors (CIS) detect the position of the paper side edges, then the machine adjusts the image writing position. • One CIS is for the MFP engine paper trays, one is for the LCT, and one is for the duplex unit Adjustment on the image writing position Detect the...
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New and Improved Features – 6 Faster Inverter Mechanism in the Duplex Tray Switch-back rollers The switch-back roller has a dedicated motor, and this improves paper inverting speed in duplex mode. The so-called ‘switchback roller’ has a similar function to the reverse roller in previous duplex rollers.
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New and Improved Features – 7 Better Air Flow Newly added cooling fan for the cleaning unit Newly added polygon motor cooling fan Improved cooling for the heat pipe Improved cooling for the development unit • Fins were added to the development unit casing...
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New Finisher for Higher Productivity New 3 sheet pre-stack path By increasing the capability of pre- stack from 2 to 3, new series attain 100% productivity even in 135 ppm system. 3 pre-stack path Increased productivity in 2 staple position By modifying the layout of staple units, productivity be increased.
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Target Yields Toner • 60k copies/bottle (B070 Series was 55k) • The toner is different from the B070 Series Developer • 500k copies/bag (B070 Series was 350k) Drum • 2000k copies (B070 Series was 700k) • The developer is different from the B070 Series Oil supply/cleaning web •...
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PM Interval 500 k for most items • It was 350 k for the B070 Series Check PM section for Items Around the Drum • What is the PM interval in this area?
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Compatibility of Consumables The toner, developer are unique to the B234 Series. • Do not interchange with consumables for other models. The drum is unique for the B234 Series. • Do not interchange with prior models...
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Changes to the Specifications Paper Weight: These are different than B070 Series. Paper Sizes: 12” x 18” is the maximum standard paper size that the machine can handle. Bypass Tray Capacity: 500 sheets Memory: 256 MB • An additional 512 MB is added when you install the printer/scanner option (it is part of the kit) •...
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End of Training Module You completed the module. If you understand the material, please go to the next training module. If not, please do the module again. Good luck!
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Technical Services web site. Review the available information: • Product Support Guide • Specifications • Supply items • Printer Drivers • Firmware • Technical Service Bulletins • Product Cross References • Connectivity Café • And much more B234 Service Manual, section 2-2...
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End of Training Module You completed the module. If you understand the material, please go to the next training module. If not, please do the module again. Good luck!
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What do I do first? First install the copier, but stop before the ‘Completing the Installation’ section. Then install the paper handling options. • The correct order to install the options will be explained later. Then, do the skew and side-to-side registration adjustments for the paper feed path.
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Removing Retainers and Tape from Drum Cleaning Unit Use a Philips (+) screwdriver to remove the screws. Put the cover back after you remove the tapes. There are some important points to note when you remove the shipping retainers from the drum cleaning unit. The cover (2) must be installed again after you remove the tape.
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Removing Retainers and Tape from Drum Cleaning Unit Note the correct way to lift the cleaning unit. • Hold the handles and lift the unit straight up.
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Adding Developer The procedure is different from the B070 Series, so study it. Put the development unit on the table correctly.
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When you Re-install the Development Unit Do not hit the development unit against the drum or any part of the machine’s frame.
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Testing the Breaker Switch Turn the copier power off. Use the tip of a small screwdriver to push the breaker test button (as shown in the photo). The breaker switch should flip to the "O" position. • If the breaker switch does not flip to the "O"...
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In the B070 Series, after you do the SPs, you must remove a red gear and replace it with a white gear. In the B234 Series, this is not necessary. B234 service manual, page 1-21 Toner supply at installation takes about 6 minutes.
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Connecting the Tray Heaters If the location has high humidity, it may be necessary to connect the tray heaters. The machine has the following heaters, but they are disconnected at the factory. • One unit below the transfer unit • Two units in the paper tray unit (these heaters are optional units) •...
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Install the Machine The wrench symbol at left indicates that you must perform some activity. • When you see the wrench symbol the documentation will indicate in what section of the Service Manual the instructions for this activity will be found. •...
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Install the Machine Now install your machine. • Service manual, section 1-3 Obey all warnings and cautions in the manual. Stop when you get to the ‘Completing the Installation’ section.
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What Order to Install the LCT and Bypass Tray? This diagram shows an LCT and the B833 bypass tray You must install the bypass tray on the LCT before you dock the LCT with the B234/235/236 machine. Copier A3/DLT LCT...
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Install the LCT and Bypass Tray - 1 LCTs and bypass tray: Sections 1.5 to 1.7 • Install the bypass tray on the B832 or B834 LCT, then dock the LCT with the copier. When you install the bypass tray, the procedure is different for each LCT.
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Install the LCT and Bypass Tray - 2 Do the CIS Adjustment for the LCTs • The machine uses CIS units to adjust the image position if side-to-side registration is incorrect. • There are two CIS units in the copier. These are calibrated at the factory.
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Installing the Finishing Options This diagram shows the finishing options. All of these can be installed on the same B234/235/236 machine. • The B830 finisher must be installed, because there is no output tray on the copier, and the Finisher...
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Docking Brackets Docking Brackets Leveling Shoe Each of the finishing options comes with docking brackets or joint brackets that are used to attach the devices to each other. • The docking procedures are explained in the installation procedures for each device. Leveling shoes are required to ensure proper alignment and support for...
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Installing the Cover Interposer First, dock the transport unit (vertical section) of the cover interposer to the copier. • Important: Do not put the tray unit on the top of the cover interposer at this time. Then, install the next device to the left of the cover interposer. •...
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Important Note about the Cover Interposer Always remove the tray unit from the transport unit at the following times: (vertical section) • Before you disconnect either the cover interposer tray or the next peripheral device to the left • Before you do any maintenance on either the cover interposer tray or the next peripheral device to the left.
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If cover interposer is not installed, dock it with the copier. In the B140 Series, the Z-fold unit can only be installed if the booklet finisher is installed. In the B234 series, the Z-folder does not need the booklet finisher. Service manual, section 1-9 If you do not replace the gear when you install the unit on a B236, paper jams will occur.
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Testing the Z-Folder Breaker Switch The breaker switch is at the lower right side of the z-folder. • You must disconnect the unit physically from the machine, but not electrically. Make sure that it is set to the right (this is the ‘on’ position). Make sure that the main power switch of the copier is off.
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Install the Cover Interposer and the Z-folding Unit Procedures • Cover interposer: Section 1.8 • Z-folding unit: Section 1.9 Dock the transport unit of the cover interposer with the copier. Then install the Z-folding unit. Finally, install the tray unit on the top of the cover interposer.
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Install the Booklet Finisher Procedure: Section 1.10 Obey all warnings and cautions in the manual. The booklet finisher does not have a punch unit.
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Install the B830 Finisher / Punch Unit Procedures • Finisher: Section 1.11 • Punch unit: Section 1.12 Obey all warnings and cautions in the manual. The B831 punch unit cannot be installed on the B236 (135 cpm) copier.
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Skew and Registration Adjustment The paper feed path is extremely long when all the finishing options are installed. In such a long path, the cumulative effect of paper skew and deviation in side-to-side registration may require adjustment. These adjustments are necessary to make a straight paper path through the machine and all the options.
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Where Skew and Side-to-Side Registration Are Measured Inside the booklet Output slot of the finisher (B836) 3000-sheet finisher (B830) You can measure the skew and registration at two locations, as shown above. At both locations, use the two scales to measure the amount of skew or deviation in side-to-side registration.
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Where Skew and Side-to-Side Registration Are Adjusted Where Skew and Side-to-Side Registration Are Adjusted In the table at the left there are four locations where you can adjust the machine to correct for paper skew or side-to-side registration shift. •At the output from the copier •At the output from the cover interposer (B835) •At the output from the Z-folding unit (B660) •At the output from the booklet finisher (B836)
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Adjustment Bracket There is a bracket like this at the four locations mentioned on the previous slides. To adjust skew, we can insert spacers under one end of the bracket. To adjust registration, we can move the bracket from side to side.
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When Skew and Side-to-Side Registration Should Be Adjusted Leading Leading Edge Edge Trailing Trailing Edge Edge Skew is less Skew is more Registration shift Registration shift than 2 mm: than 2 mm: is less than 2 mm: is more than 2 mm: Do not adjust Adjust the Do not adjust the...
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Adjusting the Skew Spacer Adjustment Bracket Spacer Insert spacers below the adjustment bracket. • The service manual shows you where to find the spacers inside the machine. Service manual, section 1.13.2 If the trailing edge skews towards the rear, insert the spacer at the rear side of the machine.
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Adjusting the Registration - 1 Loosen the screws. Scale Remove the ‘cross-shaped’ bracket, turn it by 90 degrees, Adjustment then tighten the screw to Bracket secure this bracket. Move the adjustment bracket by the same amount as the registration shift. •...
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Adjusting the Registration - 2 If you adjust the registration at the z- fold unit, also adjust this bracket on the side of the z-folder by the same amount as you moved the adjustment bracket. Service manual, section 1.13.2...
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Adjustment Procedure Service manual, section 1.13.2 Try this procedure on your machine.
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Purpose of the Slots 6 slots for boards • A1: Copier connection kit • A2: EFI controller • A3: File format converter • B1: USB Host interface • B2: Interface option (one of five possible choices) • B3: Ethernet/USB card 3 slots for SD cards •...
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Slots B2 and B3 Slot B2 • One of these can be installed − IEEE1284 Interface (Centronics) − IEEE 1394 Interface (FireWire) − IEEE 802.11b Interface (Wireless LAN) − Bluetooth Interface − Cumin-M (NRS interface) Used for @Remote monitoring system Slot B3 •...
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Slot C2 Slot C2 • One of these can be installed. − Printer/Scanner Kit − PostScript Unit − VM Card (Java support) − Data Overwrite Security Unit • To install more than one, you must merge the software onto one card. −...
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Slot C3 Slot C3 is on the other side of the controller box. It is used for installing new firmware. It is also used during the installation procedure for the browser unit. • The machine copies firmware from the SD card to the hard disk during the procedure.
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Store the Original SD Cards after Merging After you merge applications onto one SD card, the original card is de-activated. • It can be re-activated with the ‘Undo Exec’ procedure in section 1.15.2 But the customer must keep it as a proof of purchase. The original cards can be stored in a secret compartment under the...
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Install the Printer/Scanner Unit Procedure: Section 1.15.4 Obey all warnings and cautions in the manual. An additional 512 MB of memory must be installed. This is provided with the printer/scanner kit. After installing the option, you must change SP 5985 Device Setting, from '0' to '1‘, then turn the main power switch off and on.
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Install the Other Controller Options Procedures: Sections 1.15.5 to 1.15.17 Obey all warnings and cautions in the manual. • Data Overwrite Security Unit: Must be type E • Make sure that you have a type E unit. If you install the wrong type DOS unit, you must replace the NVRAM inside the copier before you install the correct DOS unit.
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Paper Size Settings Set the paper sizes for the following trays • Tandem tray in the copier: SP 5019 002 − The other trays have automatic size detection • B832 LCT, tray 6 (bottom tray): SP 5019 007 − The other two trays in the B832 have a paper size dial −...
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Other SPs Remove dust from the ADF transport belt mechanism: Do SP 6008-3 for 3 minutes to turn the belt. Then clean the dust from the exposure glass. SP 5841: Supply names (toner, staples), to let the user order the correct consumables. •...
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Downloading Stamp Data Normally only needed after replacing the hard disks. Must also be done during the machine’s installation procedure. Copy from the firmware using SP5853. Service Manual, section 5.10.4 Stamp data is on the hard disks. It is on both hard disks, and the data on each disk must be exactly the same.
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Complete the Installation Service manual, section 1.3.3 Follow all notes and cautions in the manual. If the customer wishes to use a different paper size in tray 1 (tandem tray), you must also adjust the tandem tray for the correct paper size (A4 or LT). •...
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Moving the Machine If the machine must go through a narrow space, remove the controller box and PSU box at the rear of the machine (service manual, section 1.3.4). Purge the toner supply hoses (service manual, section 1.3.5). • You cannot remove the toner bottles if you turn off the main power switch.
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Series. This procedure must be done before you move the machine through a narrow space. Also, in the B234 Series, you do not release the drum cleaning blade before transportation. • But the toner supply hoses must be purged, in the same way as for the B070 Series.
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Remove the Controller/PSU Boxes Do the removal procedure for the controller box and PSU box. • Service manual, sections 1.3.4 and 1.3.5...
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Firmware Update Procedure This is the same as the B070 Series, with a small change in the procedure for the LCDC firmware. Firmware update takes at least 15 minutes. Section 4.1 contains information about how to recover from errors during downloading firmware. All firmware is on SD cards, except for LCT firmware.
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End of Training Module You completed the module. If you understand the material, please go to the next training module. If not, please do the module again. Good luck!
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You can reset counters for each part individually, or all at the same time. • If you replace one of the parts at a time that is different from the scheduled PM, you can reset the counter for that part. B234 Service Manual, section 2-2...
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PM Table Study the PM table. • Service manual, section 2.2 Make sure that you can find and replace the parts that are listed in the table. Many of the procedures have changed. • Read the replacement procedures in the service manuals (main engine, options).
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Important Note about the Cover Interposer Always remove the tray unit from the transport unit at the following times: • Before you disconnect either the cover interposer tray or the next peripheral device to the left • Before you do any maintenance on either the cover interposer tray or the next peripheral device to the left.
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Scanner Wire Tension Adjustment To do this, just loosen and tighten the screws, as explained in the service manual. Do this every 3000k. Service manual, section 3.5.9...
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PM Counter Tools Same as for the B070 series. • Get into SP mode, and touch ‘PM counter’ on the screen. • These tools appear: − All PM Parts List − Parts List for PM Indicator − Parts Exceeding Target Yield −...
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Breaker Switches There are two breaker switches • One is on the main copier • One is on the z-folder Test them once each year. We saw the locations of these switches in the installation section of the course. The test procedure was covered in the Installation section of the course.
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Lubrication Points There are lubrication points in these parts of the machine. • Transfer Unit • Fusing Unit Service manual, section 2-3 The manual shows the lubrication points. This is different from the B070 series. Make sure that you understand these.
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End of Training Module You completed the module. If you understand the material, please go to the next training module. If not, please do the module again. Good luck!
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Major Components LCD Operation Drum Panel Scanner Laser Unit Fusing Unit Development Exit Unit Unit Duplex Tray Transfer Belt Unit Toner Bank MAJOR COMPONENTS •Color LCD panel •Fusing unit Three lamps in the hot roller; not identical •Cooling mechanism: In the exit unit, the paper cooling pipe cools the copy paper after it has gone through the fusing unit.
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Paper Path Service Manual, p 6-2 Note: The position of the Cover Interposer and the Z Fold Unit are reversed in the illustration above. Take this into account while reviewing this page. Study the following paper feed paths. Original feed paths: Input, inversion, feed-out (1) Paper input paths: Paper trays (4, 5, 6), optional LCT (3), optional bypass tray (2), optional cover interposer (13) Paper feed paths: Normal feed, duplex feed (7, 8), z-folder unit (9)
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Drive The clutches are replaced with dedicated motors, for more precise control. In the B070, some motors had more than one job. • For example, the fusing/exit motor. Many of these motors now are dedicated to one task, and extra motors are installed to do the other jobs.
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Drive Layout (1) Scanner Drum Motor Motor Duplex Registration Inverter Motor Motor Upper Relay Motor Vertical Relay Exit Motor Motor Fusing Grip Motor Motor Paper Feed Motor Service Manual, p 6-5 Study the major drive paths in the machine. This slide shows an view of the main body of the machine. Drum motor –...
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Drive Layout (2) Scanner Drum Motor Motor Duplex Registration Inverter Motor Motor Upper Relay Motor Vertical Relay Exit Motor Motor Fusing Grip Motor Motor Paper Feed Motor Service Manual, p 6-5 Study the major drive paths in the machine. Upper relay motor – Drives the upper relay roller The upper relay roller is between the tray 1 exit and the registration rollers.
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PCB Organization S D C ARD O P U O peration U S B H ost P anel C u m in-M C ontroller 128 4 139 4 B lu eto oth N V RAM 802.11b H DD N IC /U S B C N B G ig a/U S B S B U...
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PCB Organization BCU: Main board (controls the engine) Controller board: GW controller Mother board: Interfaces the controller and the IPU IPU: Does the image processing on scanned data SBU: Contains the CCD IOB: Controls engine components, such as sensors and motors MCU: Controls the scanner components PSU-C: Supplies power for the controller...
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PSU Protection Circuits There are two PSU boards • PSU-C • PSU-E PSU-E is divided into two parts: PCB A and PCB B • Sometimes called PSU-Ea, and PSU-Eb The ac inputs have fuses to protect the machine. The converters have circuits that detect power surges.
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Scanner - Components Exposure Lamps There are two exposure lamps (B070 had only one). The CCD can scan in color, for scan to e-mail and other Document Solutions features. There are more fans in the scanner unit, for better cooling. •...
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Scanner - Air Circulation Six fans cool the optics cavity • Two more than in the B070 series. Service manual, section 6.7.1 Air flow is from right through to the rear, and from right around the front, down the left side to the rear. The two new fans are at the front.
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Image Processing - Overview This is almost the same as the B070. There are small differences in some of the default settings.
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Image Processing – Original Types As on the B070 there is a ‘Dark background’ setting • ‘Dark background’: Removes the background color of originals that are made on colored paper. • This setting is only available if you adjust some user tool settings. See ‘Selecting the Original Type Setting’...
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Laser Unit There are more SP settings to input after you install a new laser unit. • The decal has 9 numbers that you must input. In the B070, there were 6. But the procedure is very similar.
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Process Control - Overview Latent image control is different. • It is basically similar to the B132-B200 and B140 Series. • The main point is that the potential sensor is not calibrated. There are no changes to toner supply control. •...
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Process Control – When is it Done? Same as B070, plus two new conditions. • After the machine is turned off/on to reset a pre-charge unit related SC code (SC312, SC313), if SP2002 001 is set to "0" (Off). − The ID sensor is not adjusted.
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Process Control – What is Done? The following steps are done, in the indicated sequence: Charge corona wire cleaning ID sensor calibration Grid voltage, laser diode power, and development bias adjustment, based on drum potential sensor readings Toner density sensor reference voltage calibration, based on ID sensor readings Grid voltage and development bias adjustment, based on VL (drum potential after full laser diode exposure)
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Drum - Overview The drum is a new type, as explained in the Product Overview section on the course. • This is much more durable than the drum used in the B070. A pre-charge corona unit was added. A second cleaning blade was added. The direction of rotation for the cleaning brush (roller) is reversed.
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Drum - Overview 2nd Cleaning Pre-charge Blade Corona Unit Main Cleaning Blade This shows the important new components. The main cleaning blade is the same as the B070, and is shown here for reference.
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Drum - Pre-charge Corona Unit Supplements the function Pre-charge of the charge unit. Corona Unit • Because of the high speed of the drum, the main charge corona does not give the drum enough charge, especially for the first copy cycle.
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Corona Wire Specifications Pre-charge corona unit • Single wire, with grid plate • Power pack: PPG Power pack • Charge current: Constant: 600 µA • Corona wire cleaning: Must be done manually Charge corona unit • Two wires, with grid plate •...
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If Problem Occurs with Pre-Charge SC312 or SC313 occurs. Then the machine stops, and must be turned off/on. When this occurs, the setting of SP2002 001 is automatically switched from "1" (On) or “2” (ON) to "0" (Off). The customer can use the machine, but the machine operates with only the (main) charge unit.
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Charge Corona Wire Cleaning Motor Cleaner The shape of the cleaner is different from the B070. The cleaner does not clean the pre-charge corona wire.
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Drum - Cleaning Unit Main Cleaning Cleaning Blade Blade There are two blades and a brush. • The B070 had one blade and a brush. The cleaning brush rotates in the opposite direction from the B070. • In this new cleaning unit, the brush does not rotate against the direction of drum rotation.
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Drum - 2nd Cleaning Blade This was added to reduce white spots in solid background. Solenoid • In work areas that are humid, the main cleaning blade may not remove all paper dust and particles from the surface of the drum. It is normally away from the drum.
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Drum - Replacement of Parts by Trained Users Trained users can replace these parts: • Drum • Cleaning unit • Charge corona unit • Pre-charge corona unit Because of this, a switch detects if the drum and cleaning unit are correctly installed. •...
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Development - Overview The capacity of development unit is increased. Result: Longer developer yield. Fins are added to the development unit casing to improve the cooling of the development unit. Two new motors, to improve efficiency and to reduce the load on the development motor. •...
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Development Drive - 1 Three motors, no clutches • Development motor: Drives the development rollers • Toner supply roller motor: Drives the toner supply roller • Hopper agitator motor: Drives the agitator in the toner hopper Development Motor Service Manual, section 6.12.3 These three motors reduce the load on the motors and gears in the development unit.
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Development Drive - 2 Three motors, no clutches Hopper Agitator • Development motor: Drives the Motor development rollers • Toner supply roller motor: Drives the toner supply roller • Hopper agitator motor: Drives the agitator in the toner hopper Toner Supply Motor...
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• If the level of toner in the hopper becomes low, the toner pump pulls toner from the toner supply cylinder into the toner hopper. The next slide has diagrams that compare the B070 Series and the B234 Series mechanisms.
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Toner Supply B070 vs B234 The pump is moved to the toner hopper. The cylinder contains an agitator and a near-end sensor. Toner Supply Pump B234 Series Toner Supply Toner Pump Hopper B070 Series Toner Bank Toner Supply Cylinder...
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Toner Supply Toner Supply Pump Toner Supply The toner supply pump Pump Motor motor is not an air pump. It is a dry powder pump, Toner Pump that contains an impeller. Motor Sensor A motor drives the pump. The toner pump motor sensor detects if the motor stops working.
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Toner Supply Toner Supply Cylinder Toner Cylinder The agitators in the Agitator Motor cylinder prevent Tubing clumping (Toner out) The TE sensor is used for near-end detection. Agitators Toner Transport Coil (Toner in) Toner Cylinder Toner Supply Toner End (TE) Sensor Cylinder Near–end detection is explained in more detail on the next slide.
Page 154
Toner Supply Sensors to Control the Flow of Toner The flow of toner is controlled by two sensors. • Toner cylinder TE sensor (in the toner cylinder; see the previous slide): If this detects insufficient toner, the toner bank motor turns on. •...
Page 155
Toner Supply Near-end Detection The details of bottle near-end detection are changed. • When toner is supplied, if the toner bottle end sensor detects no toner, an end condition occurs for that bottle. • The toner bottle motor turns the bottle for 1 second. •...
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Toner Collection Bottle – Near-full Toner Collection Bottle Agitator Sensor Toner Collection Bottle Agitator Motor When the bottle starts to become full • The motor cannot turn the coil • The gear with the actuator does not turn, so the sensor output does not change •...
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Toner Collection Bottle - Full Toner Bank Motor When the bottle becomes full • The coil is harder to turn • The gear with the actuator does not turn, so the sensor output does not change • All copy paper in the Toner paper feed path is fed Collection...
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(A4 6%: 650K) • B070 Series: 1,500 grams In the B070 Series, the toner recycling ratio is 90 %. But in B234 Series, this is 50% - less toner is recycled in the B234 Series, so the bottle fills up more quickly.
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Toner Collection Bottle Installation Error If the machine detects that the toner collection bottle is not installed correctly, a warning appears on the LCD, and the user must correct the problem. • In the B070, an SC code appeared.
Page 160
Toner Recycling from the Transfer Belt Agitator Toner is discarded: To the Toner Toner Collection Collection Bottle Coil The agitator was added. It ensures that toner from the transfer belt cleaning unit does not form clumps, and flows smoothly to the collection bottle. Service Manual, section 6.15.6 Toner removed from the transfer belt is transferred to the toner collection bottle.
Page 161
Paper Feed - Overview Double-feed detection is included (same as B132- B200) All rollers are controlled by stepper motors. There are no clutches. This is for more precise control of paper feed. Paper size detection in the three standard cassettes is different.
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Drive Components for Each Tray Grip Grip Transport Motor Roller Roller Paper Feed Motor Paper feed motor: Drives the pick-up and feed rollers Grip motor: Drives the Separation separation, grip, and transport Roller rollers All three trays have the same feed components.
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Drive Components for the Vertical Feed Path Upper Relay Motor 1st Grip Vertical relay motor: Motor Between the 1 and 2 grip rollers. Vertical Relay Upper relay motor: Motor Between the 1 grip roller and the registration roller 2nd Grip Motor 3rd Grip Motor...
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Drive Components – Schematic View Registration Each tray has a paper feed Motor motor. • Only shown here for tray 3. Upper Relay Motor 1st Grip Motor Vertical Relay Motor Tray 1 2nd Grip Motor 3rd Grip Motor Tray 2 3rd Paper Feed Motor Transport Roller...
Page 165
Paper Feed – Paper Size Detection The B132-B200 mechanism is used. • There is no position on the dial. The side fence positions control the size sensor actuators. The SP to set the paper size for tray 1 is the same as the B070 Series. •...
Page 166
Paper Size Detection – B070 Series Here is the B070 Series, for comparison. There is a paper size dial with a position. B234 Series does not have this.
Page 167
Paper Feed - Image Position Correction Three Contact Image Sensors From the LCT (CIS) detect the left edge of each sheet of paper. • One for feed from the LCT • One for feed from the duplex tray • One for feed up from the paper trays From the From the reading, the...
Page 168
Paper Feed - Image Position Correction CIS for the LCT CIS for the Vertical Feed Path from the Paper Trays CIS for feed from the Duplex Tray Here is 3-dimensional view of the mechanism.
Page 169
Paper Feed - Double-feed Detection Sensor Registration Rollers At the registration rollers, the sensor measures the light that goes through the paper. If the amount of light is suddenly reduced, the machine stops the job and a copy jam error is displayed. •...
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Paper Feed - Double-feed Detection Registration Rollers Sensor Here is 3-dimensional view of the mechanism.
Page 171
Paper Feed – Double-feed Detection Paper type is not detected in the B234 Series User tool settings • User Tools > Adjustment Settings for Operators > SP 1908 001 to 007: Enables/disables double-feed detection for each tray • User Tools > Adjustment Settings for Operators > SP 1908 008: Determines what happens if a double-feed is detected.
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Transfer and Separation This is basically the same as the B070. The cleaning roller is smoother than in the B070 Series, so the transfer belt has a longer service life. A pre-transfer lamp is added (the same as in the enhanced version of the B070).
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An agitator is added to the cleaning unit, to ensure that clumps do not B234 Series form in the waste toner. Cleaning Unit This slide compares the B070 Series and the B234 Series. The agitator is shown on the next slide.
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Transfer Belt Cleaning Unit Cleaning Roller Cleaning Roller Cleaning Cleaning Blade Blade Toner Collection Agitator Coil Cleaning roller always in contact with the belt A blade removes toner that the roller does not remove. Positive charge is applied to the cleaning roller to attract negatively charged toner Service Manual, section 6.15.5 The principle is the same as the B070 Series.
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Toner Collection from the Transfer Belt Toner path: • Toner collection Toner is discarded: coil - Toner To the Toner recycling unit - Collection Bottle Toner collection bottle Agitator: Ensures Agitator that toner does not form clumps, and flows smoothly to the collection bottle.
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Pre-Transfer Lamp (PTL) Development Unit Drum Cleaning Unit Just before image transfer, the PTL flashes light on the drum to weaken the attraction between the toner and the drum. This makes the toner transfer to the paper easier. The settings of SP 2602 control the operation of the PTL. The transfer belt is below the drum.
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Fusing - Overview The fusing lamps are different, and the fusing temperature control is different. There are four thermostats and a thermistor. The hot roller and pressure roller diameters are increased, to improve durability. The roll of cleaning fabric in the fusing cleaning unit is longer (increased from 20 m to 24 m).
Page 178
Fusing Unit Drive The fusing motor drives the fusing unit only. • It does not drive the exit or inverter units.
Page 179
Fusing Entrance Guide For the North American model (inch version), the entrance guide has ‘N’ marks at each side. Service Manual, section 6.16.2 For normal paper types, the screw must be in the upper hole. The guide is designed for different paper widths in each region, to make them the best possible to prevent creasing...
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The types of lamps used are not the same for each model. • B234 and B235 have one each of type A, B, and C • B236 has one type A and two type C lamps. The power specs of the lamps for North America...
Page 181
Fusing Temperature Control - 1 The user can select one of three operation modes, with a user tool. • User Tools> Adjustment Setting for Operators> SP 1740: Set Fusing Temperatures − Normal Temp Mode: Default − Low Temp Mode: Raises the temperature to improve fusing −...
Page 182
Fusing Temperature Control - 2 Lamp operation is complex. For details, see the service manual. • The manual explains how the fusing unit operates in different modes, with details about SP settings for fusing temperatures. • Basically: − The lamps turn ON when the temperature of the hot roller surface is lower than the standby temperature −...
Page 183
Fusing Temperature Control - 3 During machine operation, lamp operation depends on paper size and paper type. • Temperature is higher for paper that is less wide than LT LEF. This threshold width can be changed to B5 with SP 1105 013.
Page 184
Low Speed Mode Only for B235 and B236. The B234 (90 cpm) does not have this function. Similar to the B070. • On thick paper and tracing paper, sometimes fusing may be insufficient. • In such cases, the user can enable low speed mode.
Page 185
Fusing Cleaning Unit – Roll End 1 The machine uses a new photosensor, the cleaning fabric end sensor, to determine when it is almost time to install a new cleaning fabric roll. • Counting starts when the sensor detects the leading edge of the first page of a job.
Page 186
Fusing Cleaning Unit – Roll End 1 The machine uses a new photosensor, the Cleaning fabric end sensor. • Then, when the end sensor is activated, the roll must be changed. • There is no SC code (unlike B070). This is because trained users can replace this unit.
Page 187
Fusing Unit Jams Normally, the user will remove fusing unit jams. But, if SP 1159 is changed to ‘on’, the machine stops if a jam occurs in the fusing unit for three consecutive paper feeds. Then, SC559 appears. The technician must remove the jam.
Page 188
In the B070, the reverse trigger roller mechanism in the inverter section was controlled by the fusing/exit motor. • In the B234 series, this roller has a dedicated motor, and is now called the ‘switch-back’ roller. The dedicated motor makes the inverter mechanism much faster.
Page 189
Duplex Tray, continued There is no jogger unit. • This is because the paper is always held by one of the rollers, so skew does not occur. • In duplex units with joggers, the paper sometimes becomes completely free in the feed path (for a short time), and is not held by rollers.
Page 190
Duplex Unit Drive Duplex Entrance Four motors drive Motor the rollers in the duplex unit. • Duplex entrance motor • Duplex switchback motor • Duplex inverter motor • Duplex transport motor Duplex There are no Duplex Inverter clutches. Switchback Motor Duplex Transport Motor Motor...
Page 191
Duplex Unit Drive Drum Exit Fusing Unit Inverter Duplex Tray Service Manual, section 6.17.1 The following motors drive the rollers in the duplex unit. •The duplex switchback motor drives the rollers with red numbers (number 16 only) •The duplex inverter motor drives the rollers with green numbers •The duplex transport motor drives the rollers with blue numbers...
Page 192
Duplex Mechanism - Paper Path 1 Exit Junction Switchback Gate Junction Gate Inverter/Duplex Junction Gate Switchback junction gate: Lets paper into the inverter • Opens to let paper into the inverter • Closes to flatten the paper so that it feeds out of the inverter smoothly Service Manual, section 6.17.2...
Page 193
Duplex Mechanism - Paper Path 2 Exit Junction Switchback Gate Junction Gate Inverter/Duplex Junction Gate Inverter/duplex junction gate: Controls the paper path after the inverter • Closes to send paper to the copier exit for face-down output • Opens to send paper to the duplex tray for printing on side 2. Service Manual, section 6.17.2...
Page 194
Switchback Idle Roller Mechanism Switchback Junction Gate Switchback Idle Roller Switchback Roller For paper longer than A4/LT, the first sheet (blue in the diagram) feeds out of the inverter at the same time that the second sheet (green) feeds in. To let this happen, a solenoid lifts the switchback idle roller.
Page 195
Switchback Idle Roller Mechanism - 1 Solenoid Switchback Idle Roller Switchback Roller The first sheet is in the inverter. The switchback roller starts to reverse. The switchback idle roller solenoid turns on and the idle roller starts to lift.
Page 196
Switchback Idle Roller Mechanism - 2 Switchback Junction Gate Switchback Idle Roller The switchback junction gate closes, and the first sheet is fed out (or down to the duplex tray). The idle roller drops again.
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Switchback Idle Roller Mechanism - 3 The junction gate opens, and the second sheet comes into the inverter. • The first sheet is still feeding out.
Page 198
Exit In the B070, the fusing/exit motor controls the exit rollers. In the B234 series, a dedicated motor (the exit motor) controls this mechanism.
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Paper Exit Mechanism - Drive Exit Motor The exit motor drives the exit rollers and belt. Service Manual, section 6.17.5...
Page 200
Paper Exit Mechanism - Drive Exit Junction Exit Junction Gate Gate Motor The exit junction gate motor controls the exit junction gate. Service Manual, section 6.17.5 The next slide shows the function of the junction gate. Note that this gate is controlled by a motor, not a solenoid. The other junction gates in the duplex mechanism have solenoids.
Page 201
Paper Exit Mechanism - Paper Path Exit Junction Gate Paper goes either: • Straight through to the output tray or finisher (exit junction gate is closed) • Down to the inverter and duplex unit (exit junction gate is opened) Service Manual, section 6.17.2...
Page 203
New or Changed Procedures These procedures contain changes. Study the procedures in these sections, and do them if you have time. Make sure that you obey all the cautions in the manual. • Around the drum (section 3-7) • Development unit (section 3-8) •...
Page 204
After you Replace the Drum Do these SPs: • SP2962 (Auto process control execution) • SP3905 (counter reset) The sequence for doing these SPs is not important. You can do either one of them first. SP 3905 is not in the removal procedure in the service manual.
Page 205
Paper Feed Section Image position sensor (CIS): Section 3.10.18 • After you replace this sensor, you must do the adjustments later in the section 3.10.18. Side-to-side registration adjustment: Section 3.10.20 • This is normally not needed in the field. It is a factory adjustment only.
Page 206
Make sure that you install the correct fusing unit for the machine. • A fusing unit with a black top is for the B234 (90 ppm) or B235 (110 ppm). • A fusing unit with a yellow top is for the B236 (135 ppm only).
Page 207
Hot Roller Replacement Make sure to install the correct type of hot roller. • The roller for the B234/B235 is different from the B236. • You can see this by the shape of the end of the roller at in the above diagram.
Page 208
1109 back to 0 after you finish, or SC 559 will occur (paper jam in the fusing unit) Fusing lamps: For the B234/B235, the front end of the fusing lamp terminal assembly has two white connectors. These are the same, so it is not a...
Page 209
NVRAM Replacement If you change a defective NVRAM, you can put back the settings to their previous condition (except for the copy counters and some other settings). • But you can only do this if you made a backup of the NVRAM to an SD card on a previous visit.
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NVRAM Replacement If you replace the NVRAM, the Data Overwrite Security Unit will not work. The user must buy a new one.
Page 212
Service Mode Lock If the customer uses the security functions on the machine, the technician has two problems: • The technician cannot get into SP mode • If the tech. turns the machine power off and on frequently during servicing, a user name and password must be input each time. To make it easy to do work on the machine, you must ask the administrator to switch Service Mode Lock to Off.
Page 213
Error Codes SC Codes • 4 levels of SC condition. • No SP mode to clear level A service call codes. Level D SC codes • The machine reboots automatically after 30 minutes if a level B or D SC code occurs. −...
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End of Training Module You completed the module. If you understand the material, please go to the next training module. If not, please do the module again. Good luck!
Page 216
Trained Customer Replaceable Units (TCRU) B234 Series units are Designed to be TCRU Compliant: Specially trained customers can now replace some internal parts • Operator Training is required in order to perform replacement at customer site • Replacement would normally be done by a technician on a service call •...
Page 217
Trained Customer Replaceable Units (TCRU) The Following parts can now be replaced by a trained customer • Fuser Unit • Cleaning Web • Development Unit • Drum • Cleaning • Charge • Pre-Charge Corona...
Page 218
TCRU = Less Down Time 3. Development unit 4. Drum 1.Fusing unit 5. Cleaning unit 2.Cleaning Web 6. Charge corona unit 7. Pre-charge corona unit * Operator training is mandatory so that users can replace these units. • PM by the technician is still required. For example, the technician must clean inside the machine and replace other PM parts.
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Enhanced Reliability & Durability More reliable with Less- down time TCRU (Trained Customer Replacement Unit ) 1. Around Drum TCRU Unit 1. Drum 2. Development unit 3. Cleaning Unit 4. Charger 2. Around Fusing Unit 5. Pre-charge 6. Fusing Unit...
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TCRU Replacement Fusing Cleaning Web Fusing Unit Charge & Pre-Charge Coronas Cleaning Unit Drum Unit Development Unit...
Page 227
SPs for Users and Super Users Press the User Tools button • SPs for Users: Touch ‘Adjustment Settings for Operators’ The button for the super users is not shown on the diagram. It is below the User SP button.
Page 228
SPs for Users and Super Users Press the User Tools button • SPs for Super Users: Touch ‘Adjustment Settings for Skilled Operators’ − This is password protected The button for the super users is now shown on the diagram. It is below the User SP button.
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Super User Access (1) The selection button for TRAINED operators is not available by default. • Select system settings on the user tools menu.
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Super User Access (2) Select Administrator Tools on the screen.
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Super User Access (3) Select NEXT on the screen above to go to the next page.
Page 232
Super User Access (4) Select Administrator Authentication Management on the screen.
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Super User Access (5) Select Machine Management on the screen as shown.
Page 234
Super User Access (6) Select “ON” on the screen shown on the right.
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Super User Access (7) Select the settings on the screen as shown.
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Super User Access (8) The Adjustment button for TRAINED operators is available now. When the Adjustment Settings For Skilled Operators button is pressed the operator will be prompted for a User Name and Password.
Page 237
What SPs are Available for Users See ‘User, Super User SP Mode’ in section 5.1 of the B234 service manual. A lot of the user SPs are the same as technician SPs, but with different numbers or values. How do the user and technician SP settings...
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End of Training Module You completed the module. If you understand the material, please go to the next training module. If not, please do the module again. Good luck!
Page 240
Paper Handling Options B833 B234/235/236 Finisher Copier A3/DLT LCT A4/LT LCT Booklet Finisher Cover Interposer Z-Fold Unit The ADF is not an option. It is part of the machine. There are two LCTs. Only one can be installed. One is for A3/DLT-size paper.
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Paper Handling Options B833 B234/235/236 Finisher Copier A3/DLT LCT A4/LT LCT Booklet Finisher Cover Interposer Z-Fold Unit There are two finishers. Both can be installed at the same time. • The B830 finisher must be installed with the B836, because there is no output tray on the copier, and the B836 booklet finisher has no output tray.
Page 242
Paper Handling Option Compatibility A3/DLT tray for the tandem tray: New • This is a new unit. The A3/DLT trays for the B132-B200 or the B070 Series do not work in this machine. • The installation procedure is the same. LCTs: Both are new, but based on the LCT for B070 Series Bypass tray: New...
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Paper Path Service Manual, p 6-2 Note: The position of the Cover Interposer and the Z Fold Unit are reversed in the illustration above. Take this into account while reviewing this page. This shows the paper feed paths through the machine, with all options installed.
Page 244
Data Handling Options Copier connector kit: Same as B132-B200 File format converter: (will also be used on B246 Series) Data Overwrite Security unit: New (will be used on B246 Series) Browser unit: New (will be used on B246 Series) VM card: New (will be used on B246 Series) Copy data security unit: New @Remote interface for telephone line connection (also called ‘Cumin-M’): New...
Page 245
Controller Options Printer/scanner unit: New PostScript 3 kit: New IEEE1284 interface: Same as B132-B200, B246 Series IEEE1394 interface: New (will be used on B246 Series) IEEE802.11b interface • USA: Same as B132-B200 • Europe/Asia: New Bluetooth interface: New (will be used on B246 Series) Gigabit Ethernet interface: same as used n the G130 USB Host Interface: New (will be used on B246 Series) Fiery controller: No information at this time.
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Controller Options Printer/scanner kit • The printer/scanner kit includes an SD card and an Ethernet/USB2.0 board. • An additional 512 MB of memory must be installed when you install the printer/scanner option. • The optional gigabit Ethernet card can be installed instead of the Ethernet/USB2.0 board.
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LCT is in place and additional 11” X 17” paper capacity is required. No mechanical differences since the B070 Series. • There are some differences in the installation procedure (some brackets in the B070 Series are not used in the B234 Series).
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• The paper capacity is increased to 500 sheets (B070: 100) • For full details, see the section for this device in the B234 Series service Manual. When you move the LCT with the bypass tray attached, do not pull or push on the bypass tray.
Page 250
From top to bottom, the trays in both LCTs are named 4th Tray, 5th Tray, and 6th Tray. For full details, see the sections for the LCTs in the B234 STOP: Review B832/B834 in your Service Manual Series Service Manual.
Page 251
Tray Numbering The machine recognizes the trays of the LCT as trays 4, 5, and 6. The machine recognizes the bypass tray as tray 7.
Page 252
B834: A3/DLT LCT Replacement Procedures When you lift or remove a tray, always use the carrying handles (LCT service manual, section 1.1). • Remove the handles from their storage locations at the side of tray 5, and attach them to the necessary tray (tray 4, 5, or 6) as shown in the manual, before you lift or remove a tray.
Page 253
B834: A3/DLT LCT Carrying Handles These are stored on the side of tray 5 (the large tray), at [A] and [B] When you lift one of the three trays, attach the handles at 1 and 2. Put them back at [A] and [B] after you have finished.
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LCT Side-to-side Registration Adj. The side-to-side registration adjustment is normally not needed in the field. It is a factory adjustment only. • B834 LCT service manual, section 1.10, B832 LCT service manual, section 1.8 To adjust registration, do the CIS adjustment. •...
Page 255
CIS Replacement in the LCT After you replace the image position sensor, you must do the CIS adjustments • B834 LCT service manual, section 1.12, B832 LCT service manual, section 1.9 This is true for the A3/DLT and A4/LT LCTs.
Page 256
• This system also operates for other paper trays, such as the bypass tray and the A3/DLT LCT. For full details, see the section for this device in the B234 Series Service Manual. STOP: Review B835 in your Service Manual...
Page 257
Cover Interposer Tray Size Detection Width Sensor A length sensor and a Length Sensor width sensor can detect a wide range of paper sizes. The width sensor is activated by the position of the side fences. • This is different from previous cover interposer trays.
Page 258
This is the same as the unit for the B140 Series. A mechanical skew adjustment was added. The SP numbers for the fold position adjustment are different. For full details, see the section for this device in the B234 Series Service Manual. STOP: Review B660 in your Service Manual...
Page 259
Z-folder Unit Skew Adjustment - 1 The skew at each fold is corrected by adjusting a screw. • Left diagram: First fold − Open the right cover to see this screw. • Right diagram: Second fold − Open the left cover to see this screw. B660 manual, section 1.13.2...
Page 260
Z-folder Unit Skew Adjustment - 2 The diagram shows which is the first fold and which is the second fold.
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Z-folder Unit Skew Adjustment - 3 The adjustments for the two folds are in section 1.13.3 of the B660 service manual. • Each fold has a separate adjustment. • For each adjustment, there is a screw, and an adjustment scale. •...
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Z-folder Unit Fold Position Adjustment - 1 First fold: SP6301 001 to • Adjusts the length A First Second fold: SP6301 009 Fold to 016 • Adjusts the length L1 Second Fold...
Page 263
Z-folder Unit Removal Procedures Extend the feet as shown below, before you start to work n the z-folder. CAUTION: The Z-folding unit is not stable, with or without the feet extended. Do your work carefully; do not tilt the unit.
Page 264
The booklet folding mechanism is the same as the booklet finisher for the B132-B200. For full details on the B836 finisher, see the section for this device in the B234 Series Service Manual. The folder unit and stapler unit are heavy. Be careful when you remove them from the machine.
Page 265
Booklet Finisher Installing a New Folder Unit Make sure that the dip switch settings are the same as on the decal located on the replacement fold unit. Only adjust the switches on the right. Do not touch the other switches. Support the folder unit with your hand.
Page 266
The customer empties the staple trimmings hopper. In the B070 Series, the technician did this after an error code appeared. For full details, see the section for this device in the B234 Series Service Manual. STOP: Review B830 in your Service Manual Motors are used for the junction gates because of the high speed of paper feed.
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End of Training Module You completed the module. If you understand the material, please go to the next training module. If not, please do the module again. Good luck!
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