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Ricoh Be-C2, Техническое учебное пособие

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This is also for plain paper mode 3.

239

Содержание Be-C2

Страница 1: ...The machine is very similar to the older models However there are some differences The important ones are mentioned in this course Also see Guidance for Those Familiar with Predecessor Products in th...

Страница 2: ...No additional notes 2...

Страница 3: ...No additional notes 3...

Страница 4: ...No additional notes 4...

Страница 5: ...No additional notes 5...

Страница 6: ...ate will be covered MACHINE OVERVIEW The components will be discussed briefly The copy process will be outlined The machine s organization and overall PCB structure will also be covered SCANNING The s...

Страница 7: ...the same as for the main body so do not require a separate section IMAGE TRANSFER PAPER SEPARATION AND PAPER TRANSPORT Image transfer and paper separation mechanisms will be described Transport from...

Страница 8: ...PURPOSE OF THIS SECTION The model will be introduced The optional peripherals will be introduced The product concept sales points and targets will be presented 8...

Страница 9: ...No additional notes 9...

Страница 10: ...at a time Document exits at top and rear the rear exit is not shown here Copy exits at front and rear rear one not shown in the diagram Bypass Tray One sheet at a time Roll Tray 1 Contains two paper r...

Страница 11: ...An optional paper cassette can be installed instead of an optional roll feeder There are two trays 11...

Страница 12: ...The table is too high for most wheelchair users 12...

Страница 13: ...No additional notes 13...

Страница 14: ...The blue line represents the USB cable The red dots represent the points where the cable is connected 14...

Страница 15: ...No additional notes 15...

Страница 16: ...same option that was used with the Be C1 Note how this option can be used to stack originals coming out of the rear exit The diagram on the right shows how to adjust the tray to match the size of the...

Страница 17: ...No additional notes 17...

Страница 18: ...No additional notes 18...

Страница 19: ...No additional notes 19...

Страница 20: ...If the folder option is installed a stacker cannot be installed at the rear 20...

Страница 21: ...Paper must be print side up Copy exits Front exit item 5 There is another exit at the rear It will be shown on the next slide For recommendations on which exit to use see the Operating Instructions C...

Страница 22: ...trailing edge of the original after scanning to prevent it from falling and being damaged To release the trailing edge press the Scanner Stop key 21...

Страница 23: ...EAR VIEW See Operating Instructions About the Machine Getting Started Original exit Rear exit item 1 The original is fed out to this exit Copy exit Rear exit item 3 The copy is fed out to this exit 22...

Страница 24: ...ams in the cutter area of the machine Always return the cutter knob to the left or right end 5 Auto feed button The switch allows the user to feed the leading edge of a new roll into the machine prope...

Страница 25: ...The operation panel layout has been redesigned since the previous model 24...

Страница 26: ...No additional notes 25...

Страница 27: ...No additional notes 26...

Страница 28: ...No additional notes 27...

Страница 29: ...No additional notes 28...

Страница 30: ...No additional notes 29...

Страница 31: ...A temperature humidity sensor has been added below the transfer power pack to control the charge supplied by the transfer and separation power packs 30...

Страница 32: ...No additional notes 31...

Страница 33: ...There is no IEEE1284 option The roll feeder and paper cassette are new options but the only difference from the previous models is the color of the covers 32...

Страница 34: ...There is no Ratio controller for this model 33...

Страница 35: ...r cartridges are unique The rear flange is different so that you cannot install the wrong type of toner cartridge Developer The developer bag contains 1 0 kg Two bags are added at installation The dev...

Страница 36: ...RELIABILITY TARGETS Note that the PM cycle is 10 km length of copies made 35...

Страница 37: ...RELIABILITY TARGETS Note that the PM cycle is 10 km length of copies made 36...

Страница 38: ...No additional notes 37...

Страница 39: ...gth counter But in both cases the area counter stays the same Because of this customers who print images in the LEF orientation will get more prints from their service contracts when the machine is se...

Страница 40: ...with meters and print 5 meters Then we change to feet and print 6 feet The total is 5 6 feet 11 feet which is not correct But with this model same as D C2 there is a basic counter in the software that...

Страница 41: ...PURPOSE OF THIS SECTION The most important specifications of the machine will be discussed 40...

Страница 42: ...nal can be fed at a time There is no separation mechanism Original Weight Note that the rear straight feed path can be used for heavier paper than the others This is because there are no twists and tu...

Страница 43: ...his is the same for all rolls Minimum copy length There are no rollers in the paper feed path up from roll 3 and 4 roll tray 2 after the feed exit roller for the lower tray Because of this the minimum...

Страница 44: ...nning The capability of the CIS is 256 gradations However the output from the IPU is two bit 4 levels Printing The VDB sends the four level data to the LED print head However the capability of the pri...

Страница 45: ...Copy Number Input Note that multi copying is only available for standard copy sizes 44...

Страница 46: ...with a larger diameter or they will not turn in the holders Output tray capacity Application paper means paper for special applications It really means anything except normal plain paper Examples wou...

Страница 47: ...No additional notes 46...

Страница 48: ...to install the latest firmware The slides show the important points about the installation procedure They do not cover the complete procedure only the important points Go over the points on these sli...

Страница 49: ...This shows the best sequence when you install the copier and all its options If you do the steps in a different sequence to install a component you must remove something that you installed before 48...

Страница 50: ...No additional notes 49...

Страница 51: ...ore detail Then we will study the installation procedure With the previous machine it was necessary to execute SP5985 001 NIC and SP5985 002 USB to enable USB and Ethernet This is no longer necessary...

Страница 52: ...This is a summary of the steps of the installation procedure Some of these will be explained in more detail Then we will study the installation procedure 51...

Страница 53: ...The machine weighs approximately 295 kg 649 lb 52...

Страница 54: ...Adjust this panel to decrease reflections from lighting The customer can do this adjustment 53...

Страница 55: ...No additional notes 54...

Страница 56: ...No additional notes 55...

Страница 57: ...an 2 mm is left sticking above the bottom plate you cannot pull out or slide in the optional 3rd 4th roll feeder If the machine is not level from left to right developer will not be distributed evenly...

Страница 58: ...re that the power cord is securely connected to the power supply Push the test button again If the breaker switch does not snap down to the O position the breaker switch must be replaced The breaker s...

Страница 59: ...so in the procedure Each bag contains 1 kg of developer Earlier models had a knob which must be turned to distribute developer In this machine there is no knob The machine distributes the developer au...

Страница 60: ...shake the toner cartridge to make the toner loose inside the cartridge If not torque in the mechanism is too high and the development unit is damaged In case you forget a slip clutch was added to the...

Страница 61: ...is is a temporary installation It is needed to continue with the developer installation procedure The cartridge must be physically in the machine but toner must not be added So don t remove the tape 6...

Страница 62: ...nstalling the first bag you must turn on the machine to distribute the developer evenly inside the development unit If you do not do this there is no space for you to add the second bag When the machi...

Страница 63: ...No additional notes 62...

Страница 64: ...A decal on the left side of the machine explains how to install the toner cartridge 63...

Страница 65: ...No additional notes 64...

Страница 66: ...No additional notes 65...

Страница 67: ...No additional notes 66...

Страница 68: ...is no toner coating but the rest of the drum has a coating of toner This toner coating acts like setting powder to ensure that the cleaning blade does not flip over when the drum starts to turn In a c...

Страница 69: ...ll be cleaned off This layer will lubricate the edge of the cleaning blade and this makes sure that the blade will not bend in the wrong direction when the drum turns If you move the machine a short d...

Страница 70: ...itializing the ID sensor takes about 6 seconds After it is finished two numbers are displayed PWM is the power applied to the ID sensor and Vsg is the output when measuring the light reflected from th...

Страница 71: ...No additional notes 70...

Страница 72: ...No additional notes 71...

Страница 73: ...This is not important for the rear original exit 72...

Страница 74: ...No additional notes 73...

Страница 75: ...No additional notes 74...

Страница 76: ...No additional notes 75...

Страница 77: ...No additional notes 76...

Страница 78: ...The lever is shown on a previous slide The shipping position is the left We move it to the right after installation but we must move it to the left again before we move the machine 77...

Страница 79: ...hort distance within the same room it is not necessary to do these things But after installation if you move it a long distance for example between a warehouse and the customer location you must do th...

Страница 80: ...ws the user to install another two rolls of paper Take care when lifting the unit It is quite heavy and will need up to four people to install Go over the next few slides before starting to install th...

Страница 81: ...and which on the right and which way up they should be Which way round to install the guide See the diagram on the slide There are two criteria The edge with the pin inserted should be at the top The...

Страница 82: ...No additional notes 81...

Страница 83: ...No additional notes 82...

Страница 84: ...No additional notes 83...

Страница 85: ...In particular take care when lifting the unit It is quite heavy and will need up to four people to install 84...

Страница 86: ...No additional notes 85...

Страница 87: ...This procedure requires at least two technicians The previous model required a scanner relay board and a printer relay board but these are not needed with this new model 86...

Страница 88: ...This is an overview of the procedure See the service manual for the complete procedure The procedure is changed a lot from the previous machine 87...

Страница 89: ...There is no Ratio controller for this model 88...

Страница 90: ...No additional notes 89...

Страница 91: ...be moved to the card in slot 1 Service Manual Installation MFP Options Before You Begin Moving Applications onto one SD Card There is no special location inside the machine to keep SD cards that have...

Страница 92: ...c procedure the SD card in Slot 1 must be the original SD card of the application you want to move from Slot 2 to Slot 1 You cannot use any blank SD card in Slot 1 The application can be moved only to...

Страница 93: ...No additional notes 92...

Страница 94: ...No additional notes 93...

Страница 95: ...No additional notes 94...

Страница 96: ...No additional notes 95...

Страница 97: ...No additional notes 96...

Страница 98: ...Service manual System Maintenance Reference Firmware Update SP 7801 This shows the firmware versions If the update procedure fails you must replace the controller board 97...

Страница 99: ...hort distance within the same room it is not necessary to do these things But after installation if you move it a long distance for example between a warehouse and the customer location you must do th...

Страница 100: ...PURPOSE OF THE SECTION The components will be discussed briefly The machine s organization and overall PCB structure will also be covered 99...

Страница 101: ...e and nip width 5 OPC Drum Around the Drum The units around the OPC drum do the charging image writing development image transfer paper separation cleaning and quenching 6 Roll Trays 2nd Tray optional...

Страница 102: ...er Exit Rollers 12 Fusing Cleaning Roller 13 Paper Exit Junction Gate 14 Exit Rollers 15 Hot Roller 16 Pressure Roller 17 Rear Copy Tray 18 Transfer Roller 19 Roll Holder 20 2nd Feed Rollers 21 4th Fe...

Страница 103: ...32 Registration Rollers 33 Development Unit 34 Toner Cartridge 101...

Страница 104: ...ehind the machine to catch originals coming out of the machine Thick paper must go to the rear original exit to prevent image jitter during scanning Copy Feed Paths There are three routes into the mac...

Страница 105: ...This shows the paper path when the optional cassette unit is installed instead of the optional roll feeder The diagram shows the Be C1 which is very similar 103...

Страница 106: ...No additional notes 104...

Страница 107: ...ng Exit Motor Original feed motor original feed mechanism Drum drive motor drum and transfer roller Registration motor registration roller toner collection coil Roll feed motors 1 and 2 rollers in eac...

Страница 108: ...This slide shows the optional paper cassette unit installed instead of the optional roll feeder The diagram shows the Be C1 which is very similar 106...

Страница 109: ...er MLB The file format converter also called the Media Link Board or MLB allows you to download copy and print data through via network with Desk Top Binder CIS A contact image sensor is used instead...

Страница 110: ...ssette sensors clutches and motors ESB Eco Switch Board Receives 5V supplied from the PSU 5V and 5VX and distributes it to machine components according to what is required for machine operation for ma...

Страница 111: ...SIB 108...

Страница 112: ...e of all notes cautions and warnings Covers This new machine has the same number of covers as the previous machines Their removal procedures are the same However the color scheme of the machine is sli...

Страница 113: ...How to start from shutdown To start the machine press the main power switch However if you press the main power switch between the beginning and the end of a shutdown the machine will not start 110...

Страница 114: ...No additional notes 111...

Страница 115: ...No additional notes 112...

Страница 116: ...No additional notes 113...

Страница 117: ...No additional notes 114...

Страница 118: ...No additional notes 115...

Страница 119: ...This is a view with the controller box cover removed 116...

Страница 120: ...The replacement procedure in the service manual contains a table of switch settings for each area 117...

Страница 121: ...No additional notes 118...

Страница 122: ...No additional notes 119...

Страница 123: ...No additional notes 120...

Страница 124: ...The browser unit SD card is linked to its machine the machine serial number is registered on the SD card So a card that has already been installed on one machine cannot be used on another 121...

Страница 125: ...No additional notes 122...

Страница 126: ...No additional notes 123...

Страница 127: ...No additional notes 124...

Страница 128: ...PURPOSE OF THIS SECTION This section describes the original feed and scanner mechanisms 125...

Страница 129: ...ten plate is used for auto shading to get the standard white level for image processing The original registration sensor detects jams in the original feed path and detects the leading edge of the orig...

Страница 130: ...Only one sheet can be placed in the feeder at a time There is no separation mechanism There are two original exits 127...

Страница 131: ...For recommendations on which exit to use see the Operating Instructions Copy Document Server Reference Basic Copying Original and Copy Output Locations 128...

Страница 132: ...nsor detects A4 or B4 SEF and North American A size originals The original size sensors detect larger sizes The original set sensor is in the centre of the main scan so it detects any paper that is pu...

Страница 133: ...No additional notes 130...

Страница 134: ...for skew and other feeding problems before the scan begins They are controlled with user tools as shown on the slide The machine feeds at 105 mm s as far as the registration roller From that point the...

Страница 135: ...No additional notes 132...

Страница 136: ...SP 4962 can be used to check if the sensor is working See the SP table for details 133...

Страница 137: ...t setting is on the rollers do not release the trailing edges of originals longer than 450 mm This SP must be turned off if a rear original stacker is used Otherwise only one original can be fed at a...

Страница 138: ...the Xenon lamps used in previous models unfortunately the diagram still shows xenon lamps The voltage regulators used with the Xenon lamps are not needed for this model The CIS IF is a new board for...

Страница 139: ...Each block contains a latch and shift register so assembling the video signal is 8 times faster than with all the elements in one big block 136...

Страница 140: ...No additional notes 137...

Страница 141: ...platen plate auto shading Then every line the machine checks the background and removes that from the image The background is checked from a 140 mm wide strip in the middle of the original This is no...

Страница 142: ...OSE OF THE SECTION Only the main points will be mentioned here For full details of all procedures see the service manual Follow all the steps carefully and take note of all notes cautions and warnings...

Страница 143: ...No additional notes 140...

Страница 144: ...PURPOSE OF THE SECTION This section will describe drum drive the charge corona unit drum cleaning and quenching 141...

Страница 145: ...s This means that the circumference is about 251 4 mm The charge corona unit has widely spaced grid wires like some previous wide format copiers The machine prints with LEDs not a laser beam The LPH L...

Страница 146: ...In the previous models of this series the drum motor controlled the drum only 143...

Страница 147: ...No additional notes 144...

Страница 148: ...is that the grid consists of a number of parallel wires strung along the length of the charge corona unit The mesh type grid system is a better method However it is not used in wide format machines I...

Страница 149: ...1500 m The factory setting is 600 m To disable cleaning set the SP to 0 To enable cleaning immediately after every power up set the SP to 1 There is also a forced wire cleaning procedure SP 2803 Do t...

Страница 150: ...g blade is kept away from the drum while the drum is coated with toner This lubricates the tip of the cleaning blade to prevent it from flipping over when the drum turns against it This must also be d...

Страница 151: ...m the drum The diagram on this page is a side view The three dimensional view at the top right is a rear view so the handle moves in the opposite direction from the one in the Installation section Aft...

Страница 152: ...ays LEF or 15 km at 6 coverage The sensor is half way between the spout and the side of the machine so there should not be many premature alarms caused by piles of toner building up in front of the se...

Страница 153: ...No additional notes 150...

Страница 154: ...LEDs to prevent drum fatigue The quenching lamp used in this new machine has 3 elements The lamp in the previous model has 2 elements The angle of the quenching lamp was changed to achieve maximum cov...

Страница 155: ...The heaters are off when the main power is on and on when the main power switch is off These are standard components of the machine not optional items 152...

Страница 156: ...OSE OF THE SECTION Only the main points will be mentioned here For full details of all procedures see the service manual Follow all the steps carefully and take note of all notes cautions and warnings...

Страница 157: ...No additional notes 154...

Страница 158: ...No additional notes 155...

Страница 159: ...Follow the cautions in the manual Make sure that you are aware of the SP modes that must be done after each procedure they are in the procedures in the manual 156...

Страница 160: ...Follow the cautions in the manual Make sure that you are aware of the SP modes that must be done after each procedure they are in the procedures in the manual 157...

Страница 161: ...No additional notes 158...

Страница 162: ...Follow the instructions in the Drum Drum Cleaning Blade Removal procedure for how to disassemble the drum unit 159...

Страница 163: ...No additional notes 160...

Страница 164: ...PURPOSE OF THE SECTION The latent image writing mechanism will be described This machine uses LED arrays and not lasers so there are no safety switch circuits to describe 161...

Страница 165: ...Illuminated areas of the drum drop to 50 V with a tolerance of 20V and 30V Un illuminated areas are at 900 V 40V 162...

Страница 166: ...There is a small problem with copy quality at the joints between the heads as will be seen later in this section 163...

Страница 167: ...SP 2940 0 On when motors on default 1 Always off 2 On at same time as fusing lamps 164...

Страница 168: ...power To make the 32 grades the power is divided into 32 equal intervals For example if the gradation for a certain pixel is 17 the LED for that pixel will be on at 17 32 of the power The base 32 32...

Страница 169: ...OSE OF THE SECTION Only the main points will be mentioned here For full details of all procedures see the service manual Follow all the steps carefully and take note of all notes cautions and warnings...

Страница 170: ...No additional notes 167...

Страница 171: ...No additional notes 168...

Страница 172: ...l for an example Input these into the correct SP modes as explained in the manual In the factory the settings for the installed LPH unit are already made However if you do an NV RAM reset you may have...

Страница 173: ...are almost but probably not exactly in the same place but the gap between these and the central one LPH 2 is considerably larger SP 2952 011 and 012 tell the machine the misalignment between the three...

Страница 174: ...ese are the joints These lines are typical for a perfectly adjusted LPH It is impossible to get rid of these faint lines Just make sure that the customer is satisfied with a typical printout of someth...

Страница 175: ...r black line like in the above example On the left too many LEDs are switched off and the result is a white line On the right too many LEDs are switched on and the result is a black line Adjust the li...

Страница 176: ...interval of 10 and adjusting down 10 switches on one LED Adjusting the SPs up less than 10 411 412 etc decreases the light intensity of the LED at the end of the row of lit LEDs and adjusting down les...

Страница 177: ...nt a white line will occur on the printout between the two pixels To counteract this the power of the indicated LED can be adjusted There are 32 possible power values between off and fully lit at 10 p...

Страница 178: ...nd two thirds of the way across the page as shown in the lower diagram If the values on the decals on the LPH are input into the SP modes as explained in the manual this problem should not appear Thes...

Страница 179: ...s the timing for LPH 2 relative to that Make a test print If the left and central parts of the chart are not lined up properly adjust SP 2952 011 again until they are lined up correctly The right side...

Страница 180: ...No additional notes 177...

Страница 181: ...PURPOSE OF THE SECTION The development process will be described Toner supply mechanisms and toner density control will also be described Toner near end and end detection will also be described 178...

Страница 182: ...The toner cartridge is installed in the development unit at the top left in the drawing 179...

Страница 183: ...t roller attract the developer to the development roller sleeve The rotation of the sleeve carries developer toward the OPC drum Developer back spill from the doctor blade goes either to the separator...

Страница 184: ...The development units of these machines and the previous machines are not interchangeable 181...

Страница 185: ...toner density equal in all parts of the development unit The quantity of developer moved right by the backspill plate is the same as the quantity moved left by the mixing auger It is the same as cros...

Страница 186: ...oint to note here is that the machine has two ways of making the ID sensor patterns These are Low Duty Mode and High Duty Mode The mode used depends on SP 2201 004 In this machine there should be no n...

Страница 187: ...has a higher estimated ACV than the D so the default setting was changed from low duty mode to high duty mode It is thought that it will not be necessary to change this setting in the field for this...

Страница 188: ...No additional notes 185...

Страница 189: ...The paddle roller gets developer in its paddles and moves it to the development roller Magnets in the development roller pull the developer to the sleeve of the development roller The sleeve turns and...

Страница 190: ...y need to reduce this interval if the user copies originals with a high amount of black so that the amount of toner in the developer does not run low The ID sensor pattern is used for toner supply con...

Страница 191: ...No additional notes 188...

Страница 192: ...cian has to change to a fixed supply mode using SP 2208 003 Normally the machine should be used in Detect mode SP 2208 3 set to 0 The Fixed modes can be used if the ID sensor is defective and a new ID...

Страница 193: ...Vsp ID sensor reading from the bare drum Recovery from Near end If Vsp Vsg drops below SP 2927 001 the machine is released from the near end condition 190...

Страница 194: ...No additional notes 191...

Страница 195: ...tail Changing related SPs could cause developer to get on the drum which would damage the drum or on the copies which would damage the hot roller The main point is that you cannot recover the machine...

Страница 196: ...OSE OF THE SECTION Only the main points will be mentioned here For full details of all procedures see the service manual Follow all the steps carefully and take note of all notes cautions and warnings...

Страница 197: ...Make sure that you are aware of the SP modes that must be done after each procedure they are in the procedures in the manual 194...

Страница 198: ...No additional notes 195...

Страница 199: ...No additional notes 196...

Страница 200: ...No additional notes 197...

Страница 201: ...No additional notes 198...

Страница 202: ...Make sure that you are aware of the SP modes that must be done after each procedure they are in the procedures in the manual 199...

Страница 203: ...ed mechanisms for the main body will be described The cutter will also be described The optional cassette feed unit will be dealt with in a later section The mechanisms for the optional roll feeder ar...

Страница 204: ...er depends on the cutting mode selected at the operation panel preset cut synchro cut or variable cut After paper has been cut the roll must be reversed to a standby position away from the cutter This...

Страница 205: ...eed Roller 9 1st Roll Paper End Sensor 10 Relay Rollers 11 Cutting Sensor 2 12 Feed Exit Roller 2 13 Cutter 2 Lower Tray 14 3rd Roll Lead Edge Sensor 15 4th Roll Lead Edge Sensor 16 2nd Feed Roller 17...

Страница 206: ...24 Roll End Sensor 2 25 Roll End Sensor 1 202...

Страница 207: ...No additional notes 203...

Страница 208: ...A roll holder fits into the end of each roll The roll holders can be easily moved to a different place to change the paper size There are no paper size sensors attached to this mechanism 204...

Страница 209: ...y Paper Settings Paper Type you can see the paper type Paper thickness For each paper type there is a default thickness You can change this setting with a user tool Tray Paper Settings Paper Thickness...

Страница 210: ...No additional notes 206...

Страница 211: ...feed motor 1 and roll feed clutch 1 Roll 2 is driven by roll feed motor 1 and roll feed clutch 2 Roll 3 is driven by roll feed motor 2 and roll feed clutch 3 Roll 4 is driven by roll feed motor 2 and...

Страница 212: ...r the registration motor and clutch feed the paper to the registration sensor When the paper reaches the registration sensor the machine makes a beep If there is no beep the paper didn t reach the sen...

Страница 213: ...The registration motor also drives the toner collection coil so both a motor and clutch are needed for the registration roller 209...

Страница 214: ...the registration sensor the speed of the registration roller is increased 2 The speed does not reach the speed of the fusing rollers Jitter A type of image distortion caused by toner particles being s...

Страница 215: ...ition switch at each end of the cutter When the cutter moves away from home position a cam closes the paper holder Paper holder There are two plates one on each side of the paper path The cam moves on...

Страница 216: ...utting mode selected at the operation panel preset cut synchro cut or variable cut After paper has been cut the roll must be reversed to a standby position away from the cutter This allows the next jo...

Страница 217: ...the end of the roll These sensors are backups for the roll end sensors Some users may install paper rolls that do not have black cores In this case the roll end sensors may not pick up the end of the...

Страница 218: ...No additional notes 214...

Страница 219: ...No additional notes 215...

Страница 220: ...No additional notes 216...

Страница 221: ...witch is at the rear left corner of the tray To switch the heaters on off open the tray completely and push the switch Heater Switch Operation OFF Anti condensation heaters OFF when main power switch...

Страница 222: ...or many of the SP adjustments you can only calibrate the machine to either Engineering or Architecture cut lengths not both For example SP 1920 002 is 1st Roll 297 mm 11 or 12 This means that if the S...

Страница 223: ...PURPOSE OF THE SECTION Image transfer and paper separation mechanisms will be described Transport from the drum to the fusing unit will be explained 219...

Страница 224: ...The strength of the charge on the transfer roller can be adjusted for the type and thickness of the paper in use 220...

Страница 225: ...ge and the separation voltage were supplied by a single board the T S power pack However in this machine there are two boards A Transfer Power Pack supplies the transfer voltage and a Separation Power...

Страница 226: ...No additional notes 222...

Страница 227: ...No additional notes 223...

Страница 228: ...This sensor is new for this series 224...

Страница 229: ...No additional notes 225...

Страница 230: ...he paper on the drum enters the separation corona unit with about 198 mm 7 8 of the paper in contact with the drum the solenoid switches on The pick off pawl shaft starts to rotate and the pawls attac...

Страница 231: ...ter The fans also cool the fusing unit The fans stay on during standby mode to keep the machine cool The speed of the separation transport fan accelerates slightly as soon as a job starts with Film Mo...

Страница 232: ...OSE OF THE SECTION Only the main points will be mentioned here For full details of all procedures see the service manual Follow all the steps carefully and take note of all notes cautions and warnings...

Страница 233: ...No additional notes 229...

Страница 234: ...No additional notes 230...

Страница 235: ...No additional notes 231...

Страница 236: ...PURPOSE OF THE SECTION The fusing unit and fusing temperature control will be described 232...

Страница 237: ...The arrangement of fusing lamps and thermistors is the same as for the previous model 233...

Страница 238: ...No additional notes 234...

Страница 239: ...No additional units 235...

Страница 240: ...machine D211 hot roller The roller contains three pipes with liquid in them The liquid circulates when the fusing lamps turn on This makes sure that the temperature is even all across the lamp there...

Страница 241: ...s Hot Roller D208 Diameter 60 mm thickness 1 6 mm D211 Diameter 60 mm thickness 2 1 mm contains a heat pipe roller Pressure Roller Diameter 65 mm thickness 85 mm same for both models Pressure Motors A...

Страница 242: ...This is for plain paper mode 3 which is the default condition For other paper type settings the copy ready temperature is the same as the target temperature 238...

Страница 243: ...This is also for plain paper mode 3 239...

Страница 244: ...No additional notes 240...

Страница 245: ...s of the pressure roller Bushings at the centre of the shaft push upwards and this applies the upward pressure between the hot roller and pressure roller Details of the process for D208 are different...

Страница 246: ...This slide and the next one show the mechanism in more detail 242...

Страница 247: ...bearings apply upward pressure near the centre of the pressure roller This is different from most copiers Pressure is normally applied between the ends of the shaft The bearings are fixed in position...

Страница 248: ...sing pressure applied See the black line This is the same for previous models and for this model Previous models See the blue line Pressure is applied at the ends of the pressure roller The nip width...

Страница 249: ...There is no oil supply unit The cleaning roller s coating is saturated in silicone oil which cleans the hot roller Helps prevent problems caused by paper that is coated with calcium carbonate 245...

Страница 250: ...No additional notes 246...

Страница 251: ...No additional notes 247...

Страница 252: ...section The speed control adjustment is not done for paper shorter than 250 mm 9 8 in Fusing starts after the line speed has been slowed and the trailing edge has left the registration roller The spee...

Страница 253: ...leading edge of the paper reaches the exit sensor The exit sensor is not on this diagram The arrow indicates roughly where it is The distance between registration roller and exit sensor is about 360 m...

Страница 254: ...t to adjust the height of the entrance guide plate Adjust only when the paper thickness is causing a severe problem at the fusing entrance The adjustment cannot be made without removing the fusing uni...

Страница 255: ...OSE OF THE SECTION Only the main points will be mentioned here For full details of all procedures see the service manual Follow all the steps carefully and take note of all notes cautions and warnings...

Страница 256: ...the right FPDB is on the left side of the drawing and vice versa Thermostats Make sure that you install them correctly as shown in the manual Fusing Lamps The fusing lamps are designed so that it is...

Страница 257: ...No additional notes 253...

Страница 258: ...No additional notes 254...

Страница 259: ...No additional notes 255...

Страница 260: ...PURPOSE OF THE SECTION The paper exit mechanisms will be described 256...

Страница 261: ...When using the front exit the trailing edge of the paper is grabbed so that the output does not fall on the floor 257...

Страница 262: ...No additional notes 258...

Страница 263: ...he Machine Overview section of the course For recommendations on which exit to use see the Operating Instructions Copy Document Server Reference Basic Copying Original and Copy Output Locations The us...

Страница 264: ...No additional notes 260...

Страница 265: ...No additional notes 261...

Страница 266: ...PURPOSE OF THE SECTION This is a quick overview of PM for this machine 262...

Страница 267: ...ot all items need PM at 10 km Some only need PM at 20 30 40 km and so on See the PM table for details Development filter If this is blocked air pressure may increase inside the development unit and th...

Страница 268: ...No additional notes 264...

Страница 269: ...See Replacing PM Parts in the maintenance section of the service manual for the correct way to reset a PM counter 265...

Страница 270: ...No additional notes 266...

Страница 271: ...PURPOSE OF THE SECTION This describes the mechanisms in the optional paper cassette 267...

Страница 272: ...No additional notes 268...

Страница 273: ...This slide shows the optional paper cassette unit installed instead of the optional roll feeder The cassette feed motor drives both trays Each tray has a clutch 269...

Страница 274: ...The relay roller in the main body in the blue circle in the diagram lets the cassette unit feed short paper A4 LEF is the minimum 270...

Страница 275: ...otor to stop This sensor is not shown in the diagram The paper near end sensor detects when the bottom plate is getting high This means that paper is almost finished This sensor is shown on the diagra...

Страница 276: ...No additional notes 272...

Страница 277: ...The manual shows which sizes are detected automatically Other sizes must be specified with the user tool 273...

Страница 278: ...For example after the wheel turns 40 5 degrees the state of CN2 changes to HIGH 274...

Страница 279: ...e same so the width sensor cannot distinguish them But for B4 LEF and A2 LEF the widths are different Why can the sensor not distinguish the difference This is because the wheel turns more than one ti...

Страница 280: ...No additional notes 276...

Страница 281: ...No additional notes 277...

Страница 282: ...278 The End...

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