Page 1 MO-C1 Training D124 Service Training MO-C1 Version 1.1 Slide 1 This training course provides service technician training for the Mo-C1. This is a new engine, so the training course is a full course. Version 1.1 modifications Initializing the New Paper Roll (starting at slide 207)
Page 2 MO-C1 Training D124 Service Training Course Overview Slide 2 This section provides an overview of the sections of the training course.
Page 3 MO-C1 Training Contents of the Course Product Overview Main Specifications Installation Maintenance Machine Overview Scanner Image Processing Paper Feed Ink Supply and Printing Maintenance Unit Troubleshooting for the Printer Engine Slide 3 The Operation Details section contains detailed descriptions of certain procedures, such as power on initialization, paper roll initialization, and so on.
Page 4 MO-C1 Training D124 Service Training Product Overview Slide 4 This section provides an overview of the machine, and the options that can be installed.
Page 5 MO-C1 Training What Models are there in the Series? MO-C1 (D124) Output speed (A1 LEF, high speed mode, copying): » 3.4 ppm ( black-and-white), 1.1 ppm (color) » 5 sheets A1 LEF in 109 s ( , 293 s (color) black-and-white) –...
Page 6 MO-C1 Training Product Concepts Enhanced controller USB/SD Media to Print (STD) Scan to USB/SD (STD) High Productivity The black heads have a staggered layout that makes b/w printing faster. New operation panel Full Color Wide VGA touch screen Environmentally Friendly Power Consumption 90% of N-C3 Short warm up time (less than 40 seconds) Complies with RoHS Directive...
Page 7 MO-C1 Training Position in the Product Range Slide 7 This is an office color machine, not a professional color machine.
Page 8 MO-C1 Training Appearance (1) Original Stacker Original Guide Original Table Rear Original Stacker Front Cover Scanner Unit Main Unit (Printer) Ink Supply Unit Standard Roll Unit Exit Stacker Optional Roll Unit This shows the machine, with two roll feeders, exit stacker, and printer/scanner unit. Roll feeder 1 (standard) is not pre-installed in the factory.
Page 9 MO-C1 Training Appearance (2) Exit Stacker The exit stacker can be folded. The operation panel and scanner unit can be separated from the main unit and put on a table or a separate stand. This is a lot easier to do than in the Be-C1/C1.5 series. Slide 9 The operation panel and scanner unit cannot be turned around so that the exit is the other side of the machine from the operator.
Page 10 MO-C1 Training Appearance (3) Bypass Feed Ink Cartridges Collector Tank Slide 10 Ink Collector Tank Capacity: 425 cc Replace every 8,000 m (APV: 360m, Color ratio: 10％, Coverage: B/W 6%, CMYK 5% each) Replaced by users Ink cartridges Cartridge Capacity: Black 180ml, CMY 80m Target Yield (A1 LEF, APV = 360m, 1P/J, Coverage B/W= 6% Color= 5%x4C=20%, Usage ratio Black 90% Color 10%): Black: 774 Copies, 460 m...
Page 11 MO-C1 Training Front View 1. Original Stacker 2. Operation Panel 3. USB Cable 4. Scanner Unit 5. Original Table 6. Front Cover 7. Paper Exit Guide 8. Paper Holding Lever 9. Ink Cartridge Cover 10. Exit Stacker Slide 11 No additional notes...
Page 12 MO-C1 Training Original Stacker As each original is scanned, the original guide (1) guides it to the original stacker (2) on top of the machine. If the original guide is removed, the original feeds out to the rear. Slide 12 No additional notes...
Page 13 MO-C1 Training Operation Panel Three screws hold the operation panel cover in place. These screws can be removed easily and reinserted to change the angle of the operation panel to reduce glare on the operation panel LCD. There are three different positions. Slide 13 No additional notes...
Page 14 MO-C1 Training USB Cable, USB/SD Card Slots A USB cable [1] is permanently attached to the back of the operation panel. The end of this USB cable is plugged into the USB Host slot of the machine controller on the right side of the machine. Two slots are provided to input scanned documents, an SD card slot [2] and a USB memory device slot [3].
Page 15 MO-C1 Training Scanner Unit Cover The scanner unit opens easily for removal of paper jams (1). It can also be opened to the full vertical position (2) for servicing This requires disconnection of the arms on the left and right. Slide 15 No additional notes...
Page 16 MO-C1 Training Original Table The plates on the original table of the scanner unit can be adjusted to accept originals up to 914.4 mm (36 in.) for scanning. Original length is limited to 15 m (49 ft.) Slide 16 The SMC list from the factory is attached under the right hand side of the original table.
Page 17 MO-C1 Training Front Cover - 1 The front cover can be easily raised to expose the platen for cleaning and jam removal. The front cover locks in place and remains open after it has been raised, as shown on the left. Two sensors (micro-switches) on each end of the front cover detect when the cover is opened and closed.
Page 18 MO-C1 Training Front Cover - 2 Front Cover Right Front Front Cover Cover Switch Track Switch Left Front Cover Switch The front cover can be raised to remove paper jams and to load paper for bypass feeding. The left and right front cover switches (push switches) detect when the front cover is raised and lowered.
Page 19 MO-C1 Training Front Cover - 3 Front Cover Right Front Front Cover Cover Switch Track Switch Left Front Cover Switch If the front cover is opened during copying, the front cover track switch opens first. When the machine detects this, the carriage slows down. Then, when the left and right cover switches open, the carriage stops.
Page 20 MO-C1 Training Front Cover - 4 Front cover track switch: When the pin on the left of the front cover is inserted correctly into its track [A], it slides down and pushes a micro-switch [B] to the rear. This signals that the front cover is installed correctly. If the switch stays open when the front cover is down, this indicates that the cover is not correctly set in the track.
Page 21 MO-C1 Training Front Cover - 5 When you close the front cover, push it in and make sure that it locks. Slide 21 No additional notes...
Page 22 MO-C1 Training Paper Exit Guide - 1 This guides printed paper from the machine into the exit stacker at the front of the machine. Two magnets on either end of the guide hold it in place when it is open. A microswitch on the right detects when the guide is opened and closed.
Page 23 MO-C1 Training Paper Exit Guide - 2 A torque limiter on the right hinge of the paper exit guide acts as a damper to slow the descent of the guide after it is separated from the lock magnet above. This prevents the guide from falling abruptly. Slide 23 No additional notes...
Page 24 MO-C1 Training Paper Holding Lever The right side of the platen functions as the bypass feed station. If you lift the paper holding lever [1], the idle rollers above the registration rollers [2] lift, so that cut-sheet paper can be loaded on the right side of the platen. Lowering the lever [3] clamps the paper in position for paper feed.
Page 25 MO-C1 Training Ink Cartridge Cover The ink cartridge cover can be opened and closed to insert and remove the four ink cartridges. A small sensor (micro-switch) detects when this cover is opened and closed. Slide 25 No additional notes...
Page 26 MO-C1 Training Exit Stacker Basket Mode The exit stacker, attached to the front of the machine, can have two positions: Basket mode and Stack mode Basket Mode (for standard sized paper). The exit stacker is shortened so that the stacker forms a small well to hold the outputs.
Page 27 MO-C1 Training Right Side View The optical cloth holder [1] holds the accessory optical cloth [2] which can be used to clean the exposure glass. The scanner stand [3] holds the scanner unit above the main unit. The ink collector tank cover [4] can be opened and closed to insert and remove the ink collector...
Page 28 MO-C1 Training Left Side View The power cord [1], power switch [2], and manual pocket [3] are on the left side of the machine. This is the only power switch that can cycle the machine off and on. After the power switch is turned off, the system does a safe shut down. ‘Please wait’...
Page 29 MO-C1 Training Rear View Four rear output guides [1] can be attached to the back of the machine to hold originals that exit from the back of the machine. The PCB box cover [2] covers the area where the controller board and all other PCBs are mounted on the back of the machine.
Page 30 MO-C1 Training Operation Panel Home SD/USB Button Slots The angle of the operation panel can be changed, as explained earlier. With the Home button, you can return to the home screen at any time. There are 5 function keys, which you can program with your own designated functions.
Page 31 MO-C1 Training Options: Paper Feed Also used with these Similar to: Note new models: Roll Unit RU6520 (D622) roll unit Roll Holder Unit Type M5 This is a spool for the (D627) paper roll. Slide 31 No additional notes...
Page 32 MO-C1 Training Options: Controller Also used with these Similar to: Note new models: D377-01, -02: IEEE OR-C1, AL-C2, AP-C3 802.11a/g Interface Unit Type J D377: IEEE 802.11g OR-C1, AL-C2, AP-C3 Interface Unit Type K D377-21: Gigabit Ethernet AP-C3 Board Type B D624: Browser Unit Type Slide 32 No additional notes...
Page 33 MO-C1 Training Options: Other Also used with these Similar to: Note new models: D377-22: Data Overwrite For CC certification Security Unit Type H D625: File Format Converter Type M5 B829-07: Copy Data AP-C3, AT-C3 Security Unit Type F Slide 33 In the N-C3, a file format converter was necessary when scanning an original.
Page 34 MO-C1 Training SD Cards Shipped with the machine in SD card slot 1: Contains scanner, printer, PDF Direct, PS3, PS3 fonts, VM card, and others PDF Direct, VM, PS fonts: Do not move these modules. Browser unit Merge to SD card in slot 1, or keep in SD card slot 2. Do not remove after installation.
Page 35 MO-C1 Training Slots Board slots Slot A: File Format Converter Slot B: Wireless LAN Slot C: Gigabit Ethernet SD card slots Slot 1: Option slot Slot 2: Service slot, option slot Slide 35 No additional notes...
Page 36 MO-C1 Training Data Overwrite Security, HDD Encryption These features are built into the machine for all models. There is no Security SD Card. These features are enabled at the factory. It is not necessary to enable them at installation. Slide 36 No additional notes...
Page 37 MO-C1 Training Target Reliability Mo-C1 N-C3 Estimated Unit Life 72,000m / 236,000 ft or 5 180,000m or 5 years years 360m / 1,180ft N-C3a: 360m, 1,180ft (Manufacturer’s target PV) N-C3b: 540m, 1,771ft Max PV 1,200m / 3,930 ft 3,000m / 9,840 ft Target MCBF 4,286m, including 2 roll...
Page 38 MO-C1 Training Consumables Ink Collector Tank Capacity: 425 cc Replace every 8,000 m (APV: 360m, Color ratio: 10％, Coverage: B/W 6%, CMYK 5% each) Replaced by users Ink Cartridges Cartridge Capacity: Black 180ml, CMY 80m Target Yield (A1 LEF, APV = 360m, 1P/J, Coverage B/W = 6% Color = 5%x4C=20%, Usage ratio Black 90% Color 10%): »...
Page 39 MO-C1 Training D124 Service Training Main Specifications Slide 39 No additional notes...
Page 40 MO-C1 Training Specifications - 1 Configuration Stand mounted console Printing Method On-demand ink jet printing technology Pigment-based ink Power Consumption 120 W or less Dimensions (W x D x H), with original guides attached and exit stacker extended 1384 x 1760 x 1214 mm Weight 120 kg (264 lb) or less Memory...
Page 41 MO-C1 Training Specifications - 2 Warm-up Time 40 seconds or less Printer Languages PostScript3, HP-GL, HP-GL2 First Print Speed (A1 LEF) Standard Mode » BW: 44 seconds or less » Color: 121 seconds or less Speed Priority Mode » BW: 32 seconds or less »...
Page 42 MO-C1 Training Compared with D093/D094 Item D124 D093/D094 Controller Color scanning HDD overwrite/encryption Yes (Std.) Yes (Std.) Scan to media, media to print Yes (Std.) Scanner and printer functions Standard Option Memory (Standard) 3 GB + 250 GB HDD Max 2GB + 160 GB HDD Yes （...
Page 43 MO-C1 Training D124 Service Training Installation Slide 43 This section explains the main points of the installation procedure. For full details, refer to the Installaiton section of the Field Service Manual.
Page 44 MO-C1 Training Overview This section goes over only the important or difficult points of the installation procedures. For details on all the steps, see the Installation procedures in the Field Service Manual for this machine. Slide 44 No additional notes...
Page 45 MO-C1 Training Installation Location Avoid placing the machine near a window to prevent sunlight from entering the machine and causing problems in images like uneven density. The back of the scanner unit should never be exposed to strong light. If the windows near the machine are provided with blinds or curtains, close them.
Page 46 MO-C1 Training Recommended Order of Installation Assemble the Scanner Stand Assemble the Main Unit Stand Mount the Scanner Unit Mount the Main Unit Install the Roll Unit 1 (Standard) Install the Roll Unit 2 (Option) Install the Controller Options Connect the Scanner and the Main Unit Connect Harnesses, Install Brackets, Connect the Host USB Cable Connect and Clamp the Power Cord, Clamp the Main Harness Remove Tapes and Shipping Materials...
Page 47 MO-C1 Training Tools Needed Allen key (2.5 mm) One is provided but you may need extra keys if two or more people are working on the installation. Screwdriver 300 cm (12 in.) or longer Flashlight Small scale or ruler Slide 47 No additional notes...
Page 48 MO-C1 Training Mounting the Scanner Unit - 1 Mount the scanner unit immediately after you remove it from the pallet and open the box. Don’t leave it lying around while you go off for a break. Two people must mount the scanner unit on the stand. Remove the orange tape from both sides of the scanner unit before you mount the scanner unit.
Page 49 MO-C1 Training Mounting the Scanner Unit - 2 Remove the Factory Settings Sheet from under the front right end of the scanner unit. Make a copy of the Factory Settings Sheet and leave the original with the machine for future reference. Slide 49 No additional notes...
Page 50 MO-C1 Training Mounting the Main Unit - 1 Mount the main unit immediately after you remove it from the pallet and open the box. Don’t leave it lying around while you go off for another break. To avoid damage to the bottom of the main unit, never set the main unit on the floor.
Page 51 MO-C1 Training Mounting the Main Unit - 2 Look for the carrying handles on the left and right sides of the main unit. Slide 51 No additional notes...
Page 52 MO-C1 Training Mounting the Main Unit - 3 Lift with two people holding the left end [A] and right end [B] with their hands positioned as shown above. If you lift in the area shown with the red circle in the above photos, the cover could be damaged.
Page 53 MO-C1 Training Mounting the Main Unit - 4 Position the main unit over the top of the stand so that the triangle marks at the rear are aligned. Slide 53 No additional notes...
Page 54 MO-C1 Training Mounting the Main Unit - 5 Under the stand, tighten these three Allen screws. Tighten them strongly. Otherwise, you may lose these screws when you move the machine. Slide 54 No additional notes...
Page 55 MO-C1 Training Installing the 1 Roll Unit - 1 Locate the upper set of cutouts in the left and right legs of the main unit stand. You will install the 1 roll unit here. Slide 55 No additional notes...
Page 56 MO-C1 Training Installing the 1 Roll Unit - 2 While holding the unit with both hands: Set the positioning pins on the left and right ends of the roll feed unit into the cut-outs in the supports Push the roller feeder in. Slide it slightly to the right to lock the unit in place.
Page 57 MO-C1 Training Installing the 1 Roll Unit - 3 Behind the stand on both sides, make sure that the holes of the roll feed unit and the stand frame are aligned. Pass a long, thin screwdriver (30 cm: 12 in.) through each pair of holes to make sure that they are aligned.
Page 58 MO-C1 Training Installing the 1 Roll Unit - 4 When fasten the roll feed unit to the stand, be sure to use the screws with the washers attached. Slide 58 No additional notes...
Page 59 MO-C1 Training Installing the 1 Roll Unit - 5 There are two pegs on each end of the paper transport guide. Make sure that they fit properly into the cut-outs on the left [A] and right [B]. Slide 59 No additional notes...
Page 60 MO-C1 Training Installing the 1 Roll Unit - 6 There are six mylar tongues. Use a thin edge (like the end of a metal scale) to push them up and behind the plate. Paper will not feed from the roll correctly if these mylars not pushed behind the plate.
Page 61 MO-C1 Training Installing the 2 Roll Unit - 1 Before installing the optional roll unit on a machine that has been installed already, remove the stacker and its base plates on both sides. The roll unit is heavy and difficult to position. Remove the plastic base plates of the exit stacker to prevent damaging them.
Page 62 MO-C1 Training Installing the 2 Roll Unit - 2 Locate the lower set of cutouts in the left and right legs of the main unit stand. You will install the 2 roll unit here. Slide 62 No additional notes...
Page 63 MO-C1 Training Installing the 2 Roll Unit - 3 Behind and under the machine, hold the guide plate as shown (above left). Then, at the top, set the cut-outs in the left and right over the pegs. Lift the guide slightly, and then insert the bottom pegs into the cut-outs at the lower left and lower right corners.
Page 64 MO-C1 Training Installing the 2 Roll Unit - 4 After installing the optional roll unit, check the clamps and harnesses. Make sure that the clamps are closed and that there is absolutely no slack in the harnesses. The harnesses must be flat up against the bottom of the PCB box to prevent them from interfering with paper in the bypass feed path.
Page 65 MO-C1 Training Connecting the Operation Panel USB Cable The USB cable [A] (permanently attached to the back of the operation panel) must be connected to the controller box [B] on the back of the machine. Do this before you connect the scanner stand to the main unit stand.
Page 66 MO-C1 Training Connecting the Scanner and the Main Unit - 1 The scanner unit is top heavy and unstable. It can fall over easily. Grip the supports below the scanner unit and push it slowly when you move it. Slide 66 No additional notes...
Page 67 MO-C1 Training Connecting the Scanner and the Main Unit - 2 Before you put the rear cover back on, install the controller options. Slide 67 No additional notes...
Page 68 MO-C1 Training Connecting the Scanner and the Main Unit - 3 Make sure that the harness is inside and behind the left support of the stand. If the harness is wrapped around the outside in front of the support, the harness will be pinched between the stand and back of the machine when...
Page 69 MO-C1 Training Installing the File Format Converter (MLB) During the procedure, you have to take out the mother board and install another one. Slide 69 No additional notes...
Page 70 MO-C1 Training Installing the Wireless LAN Option The positions of the antennas are important. Follow the instructions in the manual. Slide 70 No additional notes...
Page 71 MO-C1 Training Ink Collector Tank Storage Shelf The ink collector tank storage shelf [A] is attached to the bottom cross-piece of the scanner stand. Set the extra ink collector tank on the shelf. When the ink collector tank becomes full, the machine will stop. The operator can remove the full tank and replace it with the empty tank.
Page 72 MO-C1 Training Installing the Exit Stacker When you attach the shaft to the feet, attach it at [A], not [B]. When assembling the rods and the cloth, follow the steps in the service manual carefully. It is easy to get confused while assembling this component.
Page 73 MO-C1 Training Ink Filling - 1 Before a machine leaves the factory, the ink supply tubes, sub tanks, and print heads are filled with priming fluid. This priming fluid prevents the seams of the joints and connections of the ink supply system from drying out during shipping and storage.
Page 74 MO-C1 Training Ink Filling - 2 Insert the primer fluid drain cartridges, then close the ink cartridge cover. Turn the machine power on, wait for the machine to beep twice, and make sure that SP2012-001 is set to "9". Next, set SP2100-004 to "15“ and press #.
Page 75 MO-C1 Training Ink Filling - 3 Remove the primer fluid drain cartridges and replace them with the starter ink cartridges. Left to right: K > C > M > Y. Close the cartridge cover. Slide 75 Obey the local laws and regulations regarding the disposal of items such as the primer fluid drain cartridges.
Page 76 MO-C1 Training Ink Filling - 4 Turn the machine on. The ink filling sequence will start automatically. This takes about 20 min. "Initializing Unit" is displayed during filling, alternately with a near-end message. If you do not see a message that tells you filling has started, cycle the machine off/on and try again.
Page 77 MO-C1 Training Alternative Ink Filling Procedure If one or more of the ID chips on the drain cartridges is damaged, the draining operation may not start when you set SP2100-004 to "15". 1. Open SP2012-001 and set it to "3". 2.
Page 78 MO-C1 Training Setting a Paper Roll - 1 If you replace a partially used roll with another roll of paper, be sure to store the replaced roll on a flat level surface. If possible, keep the paper roll package. If the machine remains idle for a long period where the temperature and humidity are extremely low or high, the rolls should be removed and stored in their original packing.
Page 79 MO-C1 Training Setting a Paper Roll - 2 Before you install the roll, do Paper Type Selection at the operation panel. Select a paper type for each paper feed station. User Tool > System Settings > Tray Paper Setting > Next > Paper Type: Tray n Set the stopper for the size of the roll core of the paper roll.
Page 80 MO-C1 Training Setting a Paper Roll - 3 Set the left and right ends of the rolls in the roll feeder sockets, then pull the leading edge of the paper slightly so that it hangs down. Always feed the paper from the bottom of the roll, not the top. »...
Page 81 MO-C1 Training Setting a Paper Roll - 4 Insert the leading edge of the roll paper below the roller at the feed slot, and then feed the paper into the machine until the machine grabs and pulls the paper slightly. When the machine detects the leading edge of the paper, it will grab it and then sound a buzzer.
Page 82 MO-C1 Training Setting a Paper Roll - 5 When the message on the operation panel asks ‘Cut’ or ‘No Cut’: Touch [Cut] to make a clean edge if the paper has been cut manually or is damp. Touch [Do Not Cut] if you do not want a fresh cut on the leading edge of the paper.
Page 83 MO-C1 Training Caution about Paper Rolls If the machine will not be used for a long period where the temperature and humidity are high or low, remove the paper rolls from the machine and store them (in their original packing if possible).
Page 84 MO-C1 Training Removing a Roll - 1 You need to rewind the roll before removing it for temporary storage or swapping it for another roll. Press and hold the rewind button on the right side for 2 seconds or more. The roll will reverse feed out of the machine onto the roll.
Page 85 MO-C1 Training Removing a Roll - 2 Avoid touching the paper with your hands. Grip the roll at the plastic holders on both ends, and then lift the paper roll out of the machine. Lay the roll horizontally on a flat clean surface. Slide 85 No additional notes...
Page 86 MO-C1 Training User Tools – Maintenance Menu In the User Tools, select Maintenance. You will use some of the tools shown above (on the right) to print the test pattern and adjust the machine. Print Nozzle Check Pattern: Prints the test pattern Clean Print Heads, Flush Print Head: You need to use these if the test pattern output is not perfect.
Page 87 MO-C1 Training Printing the Nozzle Check Pattern - 1 The Nozzle Check Pattern ensures that the print heads are operating normally. No Problems 1. Press [User Tools] on the operation panel. 2. Touch [Maintenance] and then select "Print Nozzle Check Pattern". 3.
Page 88 MO-C1 Training Printing the Nozzle Check Pattern - 2 5. Press [User Tools] on the operation panel. 6. Touch [Maintenance] 7. Touch [Clean Print-heads] 8. Select the print head(s) to clean then touch [Start], and then follow the prompts to complete the cleaning. 9.
Page 89 MO-C1 Training If the Nozzle Check Pattern is No Good Even After Three Cleanings and One Flushing Make sure that the ambient temperature and humidity are within the acceptable range: Temperature Range: 10°C to 27°C (50 °F to 81°F) Humidity Range: 15% to 80% Rh Execute print head cleaning once, and then print a Nozzle Check Pattern.
Page 90 MO-C1 Training If the Nozzle Check Pattern is No Good Even After Three Cleanings and One Flushing 7. If the results are still not satisfactory, open SP2100-002. Enter the number of the print head that is abnormal. » Head 1, K1 (Black), enter 1 »...
Page 91 MO-C1 Training Halftone Check Leftover primer fluid can cause streaking in halftone areas. Do this check to confirm that all of the primer fluid has been drained from the from the ink sub tanks and ink supply tubes. User Tools > Printer Features > List/Test Prints > [Color Sample]. The color sample may require a minute or so to finish printing.
Page 92 MO-C1 Training Other User Tool Adjustments After checking the nozzle check pattern, make sure that the machine is level and that the casters are set correctly. Then do the following three adjustments in this order: Manual Adjust Head Position Adjust Paper Feed Adjust Print Position Slide 92 Replacement and Adjustment >...
Page 93 MO-C1 Training Manual Adjust Head Position - 1 Select a Paper Source and a Resolution, and touch [Start Printing]. Slide 93 No additional notes...
Page 94 MO-C1 Training Manual Adjust Head Position - 2 Look at the test pattern. In each row (A to H), Identify the number of the column where the square is faintest, or select the square where the internal lines overlap to form a solid color. The number above the square is the adjustment value.
Page 95 MO-C1 Training Manual Adjust Head Position - 3 Touch [Adjustment]. Input a value for each row. Use the + and – buttons. Print another test pattern to make sure that the adjustment is correct. The numbers that you just entered must correspond to the condition of the patches on the new test chart, as explained on the previous slide.
Page 96 MO-C1 Training Adjust Paper Feed - 1 Adjust paper feed if you see these problems in the prints: Broken horizontal lines Patchy images (uneven filled areas) White lines at regular intervals Select [Print Test Sheet] for the required paper feed source.
Page 97 MO-C1 Training Adjust Paper Feed - 2 The adjustment value appears to the left of the lightest gray square with straight horizontal lines on both sides. Slide 97 No additional notes...
Page 98 MO-C1 Training Adjust Paper Feed - 3 Touch [Adjustment]. Touch the plus or minus key to enter the value from the test print. Slide 98 No additional notes...
Page 99 MO-C1 Training Adjust Print Position - 1 Do this procedure to check and adjust the print start position at the upper left corner of each sheet. Slide 99 No additional notes...
Page 100 MO-C1 Training Adjust Print Position - 2 A test pattern prints. The black arrow indicates the direction of paper feed. Rotate the test sheet 180 degrees. [A] is the top margin and [B] is the left margin. Touch the arrow keys to adjust the margins. Increasing the value for the top and left margin moves the print position down and to the right.
Page 101 MO-C1 Training Settings after Installation Date, Time Setting: Check the date and time setting. If they are not correct, set the correct date and time. User Tool > System Settings > Timer Settings > Set Date, Set Time Slide 101 Paper size is detected automatically by the machine by the DRESS sensor, as will be explained later.
Page 102 MO-C1 Training Back Up the NVRAM After you have finished installing the machine, back up the NVRAM to an SD card. Insert an SD card in SD card Slot 2. Do SP5824 to upload the contents of the NVRAM to the SD card. Keep the SD card is a safe place.
Page 103 MO-C1 Training Moving the Machine - 1 When moving the machine to another location in the same room or the same building: Two people are required to move the machine to a new location. To prevent ink spillage, never lift or tip the machine from the level position.
Page 104 MO-C1 Training Moving the Machine - 2 When shipping the machine to a new location: Disassemble the machine and pack it in its original boxes. Make sure that the main unit is packed level and strapped securely. Pack and tape some shipping material against the carriage to prevent the carriage from slipping out of position.
Page 105 MO-C1 Training Don’t Tilt the Machine While Moving To avoid ink spillage, never tilt the machine when you are moving it. Before ink is installed, the machine can be tilted by 70 degrees, such as when carrying the machine up stairs. However, after the machine has been used, the machine should not be tilted by more than 45 degrees, or ink could come out from the ink sump.
Page 106 MO-C1 Training D124 Service Training Machine Overview Slide 106 This section introduces the mechanisms of this engine. Details will be explained in later sections.
Page 107 MO-C1 Training Major Units 1. Operation panel/Scanner unit 2. Main unit 3. Roll unit 1 (standard) 4. Roll unit 2 (option) 5. Exit stacker Slide 107 The scanner unit and main unit are mounted on separate racks. The units can be easily separated for servicing, or for placing the scanner on a low table or desk so that it can be operated from a sitting position.
Page 108 MO-C1 Training Main Unit Layout - 1 Scanner Operation Unit Panel The operation panel and scanner unit are mounted Main Unit on the scanner stand. The main unit is mounted Scanner on the main unit stand. Stand The main unit and scanner Main Unit stand can be separated Stand...
Page 109 MO-C1 Training Main Unit Layout - 2 Carriage Unit The carriage unit contains the print head units, and Air Release sensors for monitoring ink Solenoid level, registration, and gap between print head and paper. Maintenance The air release solenoid Unit purges air from the ink supply system.
Page 110 MO-C1 Training Main Unit Layout - 3 Roll Unit 1: Holds one roll of paper. The stoppers can be adjusted easily to accept different widths of roll paper. Roll Unit 1 Roll Unit 2: Holds one roll of paper. Its stoppers can also be adjusted easily to adjust for Roll Unit 2 different roll core sizes.
Page 111 MO-C1 Training Horizontal Carriage Movement Carriage Unit Horizontal Encoder Strip Drive Belt Horizontal Horizontal Motor Encoder Sensor Ink Level Sensors Horizontal motor and drive belt: Drive the carriage unit and print heads from left to right. The horizontal motor is controlled by a long horizontal encoder strip stretched across the width of the main unit.
Page 112 MO-C1 Training Paper Feed Vertical Encoder Sensor Registration Roller Vertical Feed Motor Vertical Encoder Wheel Exit Rollers Vertical Encoder HP Sensor Drive Belt Vertical feed motor and drive belt: Drive the registration and exit rollers to feed paper through the printer. The vertical motor is controlled by the vertical encoder wheel (on the left side of the machine).
Page 113 MO-C1 Training Paper Feed Control A DSP control (Digital Signal Processing) system controls paper feed with encoder wheels. It assures accurate roll paper feed and constantly monitors the amount of paper remaining on the rolls. Slide 113 No additional notes...
Page 114 MO-C1 Training Maintenance Unit Print Head Rubber Caps Scraper Wipers Cleaning Unit Suction Suction Maintenance Maintenance Pump Motor Lift Motor The maintenance unit, mounted on the right side of the machine, cleans the print heads. Maintenance motor: Raises the suction cap that cleans the print heads and caps the K1 print head, raises the rubber scraper, moves the wipers, and drives the suction pump.
Page 115 MO-C1 Training Print Head Cleaning Carriage Unit Maintenance Unit Ink Collector Unit Left Ink Sump Right Ink Sump The maintenance unit cleans the print heads to prevent them from becoming clogged with paper dust or other foreign matter. Cleaning is done occasionally during print jobs and can also be executed manually by the operator.
Page 116 MO-C1 Training Ink Supply Ink Sub Tanks Ink Supply The ink supply unit on the Tube right side of the machine holds four ink cartridges (KCMY). Ink supply pumps: Pump ink through ink supply tubes to the ink sub tanks above each print head.
Page 117 MO-C1 Training Waste Ink Collection Maintenance Unit Left Ink Sump Right Ink Ink Collector Sump Tank Waste ink collector tank (on the right side of the machine): Collects the ink removed from the print heads by the maintenance unit during print head cleaning. The ink collector has an ID chip, which keeps count of the amount of ink in the tank (a message appears when the tank must be replaced).
Page 118 MO-C1 Training DRESS Sensor - 1 Here is a closer look at the DRESS sensor. It is mounted on the left side of the carriage unit. The machine uses it for the following: Paper width detection: The sensor checks the right and left edges of the paper on the platen to check the size of the paper.
Page 119 MO-C1 Training DRESS Sensor - 2 The DRESS sensor contains an LED (1) and receiver (2). The sensor detects the edge of the paper when it picks up the change in reflectivity between the paper and platen at the edges. Slide 119 No additional notes...
Page 120 MO-C1 Training Staggered Print Heads - 1 K1 Print Head K2 Print Head Two black ink print heads, arranged in a staggered configuration, increase the area of coverage for black-and-white printing. This arrangement of black print heads increases the printing speed for large black-and-white documents.
Page 121 MO-C1 Training Staggered Print Heads - 2 K1 Print Head K2 Print Head The K1 print head sits forward of the K2 print head in the direction of paper feed. Three nozzles at the rear section of K1 (1) and three nozzles at the front section of K2 (2) overlap the same area on the paper.
Page 122 MO-C1 Training Print Head vs Print Head Unit Color Print Head Unit Black Print Head Unit YM Print K1 Print Head Head K2 Print Head C Print Head This machine has 4 print heads (K1, K2, C, Y, M). There are two print heads for black (K1, K2) and one independent print head for Cyan (C).
Page 123 MO-C1 Training Drive Components - 1 Scanner motor: Drives the Scanner original entrance rollers and Motor original exit rollers of the scanner unit. Horizontal motor: Drives the timing belt that moves the carriage unit to the left and Horizontal right during printing. Motor Vertical motor: Drives the registration and paper exit...
Page 124 MO-C1 Training Drive Components - 2 Maintenance motor (in the maintenance unit): Lifts and lowers the left print head cap to cap and uncap the K1 print head » The left print head cap is also used for cleaning all print heads, not just K1.
Page 125 MO-C1 Training Drive Components - 3 Ink pump motors (x5, one for each print head): Drive the pumps that Air Release supply ink to the print heads. Solenoid Air release solenoid: Purges air from the ink sub tanks when excess air is detected. Head Lift This one solenoid is used to Motor...
Page 126 MO-C1 Training Original Feed Paths Exit Sensor Set Sensor Registration Sensor Original Exit (Upper) Width Sensors Original Exit (Rear) Original Guide Original width sensors: Detect the width of the original on the original table. Original set sensor: Detects when an original is set on the original table. Also functions as an original width sensor.
Page 127 MO-C1 Training Paper Feed Path - 1 Registration DRESS Roll entrance sensors: When Standby Position Sensor the user installs a roll, these Paper Exit sensors detect the leading Sensor edge of the paper that the user feeds manually. This triggers the roll feed sequence and feeds paper into the vertical feed path.
Page 128 MO-C1 Training Paper Feed Path - 2 Registration DRESS Paper exit sensor: Detects Standby Position Sensor the trailing edge of the roll Paper Exit paper when it leaves the Sensor main machine after cutting. Roll exit sensors: If the user reverse feeds a roller so that the roll can be removed, these sensors Pre-registration...
Page 129 MO-C1 Training Paper Feed Path - 3 Registration There are two standby Standby Position positions. If Roll Unit 2 or bypass feed is selected for a job, but paper from Roll Unit 1 is at the registration standby position, the machine rewinds roll 1 to paper standby position 1.
Page 130 MO-C1 Training Bypass Feed Path - 1 DRESS Registration For bypass feed, the user Sensor Standby Position manually feeds a sheet of paper into the front of the machine. When the bypass sensor detects the paper, the machine grabs the paper and feeds it through the machine.
Page 131 MO-C1 Training Bypass Feed Path - 2 Registration DRESS The carriage unit makes one Standby Position Sensor pass over the paper so that the DRESS sensor can detect the width of the paper. The machine knows the paper length from the paper size that the user inputs with the operation panel.
Page 132 MO-C1 Training Locations of Major Electrical Components View with Rear Cover Removed Controller Board Mother Board RFDB Slide 132 The motherboard is mounted sideways between the controller board and the HDD bracket, so it is not easy to see. The IPU is mounted behind the MCU and the HDD bracket, so only part of it is visible in this photo.
Page 133 MO-C1 Training Functions of Main Boards MCU (Main Control Unit): This is the engine control board. Controller: GW+ controller SIB (Scanner Interface Board): Located at the left rear corner of the scanner unit, interfaces with five CIS elements. Sends scanned image data to the IPU. IPU (Image Processing Unit): Controls image processing.
Page 134 MO-C1 Training MCU Board If you install a new MCU, you must remove the EEPROM from the old MCU and install it on the new MCU. Slide 134 No additional notes...
Page 135 MO-C1 Training Controller Board If you install a new controller board, attach the NVRAM from the old board to the new controller board. Slide 135 No additional notes...
Page 136 MO-C1 Training General Operation Sequence Overview The general operation sequence is composed of these steps: 1. Power ON 2. Scanning 3. Paper Feed 4. Printing 5. Cutting 6. Paper Exit and Job End Slide 136 No additional notes...
Page 137 MO-C1 Training General Operation Sequence 1. Power On Initialization Process 1. The machine checks for paper jams, and issues a jam alert if one is detected. 2. The print head caps in the maintenance unit are lowered to uncap the print heads. 3.
Page 138 MO-C1 Training General Operation Sequence 1. Notes about Power On Initialization When the machine is powered on, especially after a cold start, the machine automatically checks temperature, ink level, and air sensors. Then it cleans and re-fills the print heads. This can require more time, depending on how long the machine has been off.
Page 139 MO-C1 Training General Operation Sequence 1. Notes about Power On Initialization If the machine is accidentally unplugged from the wall power socket, or if a power outage occurs during the cleaning cycle after power on, the cycle will not resume from where it was interrupted after power is restored.
Page 140 MO-C1 Training General Operation Sequence 2. Scanning The operator selects the paper feed station. The original is laid face down on the original table. The scanner unit grabs the original and feeds it a short distance. The original set sensor detects the presence of the original and the array of original width sensors detect its width.
Page 141 MO-C1 Training General Operation Sequence 3. Paper Feed Paper feed begins DRESS Sensor Registration Standby Position immediately from Roll Unit 1 if it was selected for the Paper Leading Edge Registration Roller job. Exit Sensor Bypass If Roll Unit 2 was Sensor selected for the job but Exit Roller...
Page 142 MO-C1 Training General Operation Sequence 3. Paper Feed DRESS Sensor To check for paper skew: The carriage moves to the left and the DRESS sensor, mounted on the left side of the carriage, checks the right edge of the paper. The machine feeds more paper and then the sensor checks the right edge again.
Page 143 MO-C1 Training General Operation Sequence 4. Printing Carriage Unit The carriage unit moves left and right. The print heads mounted on the carriage unit lay down ink on the paper. Each print head unit in the carriage contains sub tanks that hold the ink. The paper transport fan remains on and holds the paper tightly on the platen, so it does not shift during printing.
Page 144 MO-C1 Training General Operation Sequence 4. Printing During printing, an actuator arm on each sub tank, with actuators paired with OCFS (On Carriage Filling Sensors), constantly monitor the condition of each sub tank above the print heads. Slide 144 No additional notes...
Page 145 MO-C1 Training General Operation Sequence Cutter 5. Cutting Cutter Return Switch Cutter Motor Blade Cutter HP Sensor When printing is finished, the print head moves away from the platen, so that the cutter can cut the paper. If the last line printed ends on the left side, the carriage moves to the left side of the machine. If the last line printed ends on the right side (bi-directional printing), the carriage moves the right to its home position.
Page 146 MO-C1 Training General Operation Sequence Cutter 5. Cutting Cutter Return Switch Cutter Motor Blade Cutter HP Sensor 4. The cutter motor switches on and drives the circular cutter from right to left to cut the paper. 5. When the cutter reaches the left side of the machine, the cutter drops into a track below the paper, and then the cutter motor reverses and returns the cutter (passing below the paper) to its home position on the right side of the machine.
Page 147 MO-C1 Training General Operation Sequence 6. Paper Exit and Job End 1. After the paper has been cut and the cutter has returned to its home position, the machine feeds the paper out of the machine. 2. When the exit sensor detects the trailing edge of the paper, this signals job end.
Page 148 MO-C1 Training Power Off Sequence There is a wait time of up to 2 minutes (depending on controller condition) after the machine has been switched off. This prevents damage to the hard disk, and lets the machine cap the print heads. A message is displayed, and goes off after the machine completes its shutdown sequence.
Page 149 MO-C1 Training Replacement Procedures Before you start working on the machine, read the General Cautions at the start of the Replacement and Adjustment section of the Field Service Manual. Slide 149 These cautions are mentioned in various parts of the training course.
Page 150 MO-C1 Training Service Precautions Rollers The surfaces of the main rollers (original feed roller, original exit roller, registration roller, and exit roller) are covered with a soft urethane coating. This coating can be damaged quite easily (even with a fingernail). Never touch the surface of these rollers with bare hands.
Page 151 MO-C1 Training Service Precautions Main Frame Screws There are paint-locked screws across the top of the machine (under the top cover ). These screws are positioned and adjusted at the factory. Never loosen or attempt to adjust these screws. Slide 151 No additional notes...
Page 152 MO-C1 Training Service Precautions Right Plate Screws You can see the heads of four paint-locked screws around the top of the maintenance unit. These screws hold a re- enforcement plate. Never loosen or remove any of these screws. Slide 152 No additional notes...
Page 153 MO-C1 Training Service Precautions Maintenance Unit Base Plate The maintenance unit base plate supports the maintenance unit. These screws hold the base plate under the maintenance unit, which must always remain in the same position below the carriage print heads. The two base plate screws at the back on the right rear panel should never be loosened or removed.
Page 154 MO-C1 Training Service Precautions Main Carriage Screws The illustration shows the left cover of the carriage unit removed. It is extremely important you never loosen or remove these screws. Tampering with these screws could cause the carriage unit to fall out of alignment or onto the platen plates.
Page 155 MO-C1 Training Service Precautions Platen Plate Guide Rod Screws Never loosen the center screws of the brackets that hold the platen plate guide rod in place. The platen plates should never be removed. Slide 155 No additional notes...
Page 156 MO-C1 Training Tools that you Need to Work on the Machine Alcohol, clean linen cloths: Cleaning surfaces and rollers Follow all notes and cautions to avoid using alcohol when it is not wanted, such as on the covers. Allen key (2.5 mm): Removing/attaching hex bolts. Blower brush: Cleaning sensors Clean rags: Wiping up ink, covering disconnected ink tubes Clean waste paper: To place under the maintenance unit and other parts...
Page 157 MO-C1 Training Before you Start Before doing any procedure, always turn off the power switch and unplug the machine from its power source. To prevent damage to these parts, and to prevent interference with raising and lowering the top of the scanner unit, always remove the following before servicing the machine: [A] Original guides...
Page 158 MO-C1 Training Reinstalling the Original Stacker Pull out the light shield and confirm that the gap at the top of the scanner unit is completely covered. This light shield prevents light from entering the scanner unit. If this gap is not covered, strong light could enter the back of the scanner unit and cause image distortion during scanning.
Page 159 MO-C1 Training Separating the Main Unit and the Scanner Unit To avoid scratching or breaking the original table, never lay anything on the original table while you are working. Move the scanner unit and stand assembly carefully. It is top heavy and can tip over easily. Slide 159 Replacement and Adjustment >...
Page 160 MO-C1 Training Removing the Top Cover To remove the top cover, the covers must be removed in this order: Right Cover > Right Upper Cover > Ink Cartridge Cover > Left Cover > Top Cover Use only a water dampened cloth to clean the covers.
Page 161 MO-C1 Training D124 Service Training Scanner Detailed Description Slide 161 The scanner is based on the N-C3. The original feed and exit rollers are made of a different material.
Page 162 MO-C1 Training Safety Switches Overview Original Stop Key Original Registration Sensor Original Entrance Roller Original Exit Sensor Original Set Sensor Original Width Sensors Original Exit Roller Scanner Motor CIS Unit Registration sensor: Detects the leading edge of the original and stops feed long enough for the operator to align the original manually if it is not straight.
Page 163 MO-C1 Training Original Stop Key Original Stop Key Press this to interrupt scanning if a problem occurs during scanning (wrinkling, skew), to prevent damage to the original. Slide 163 No additional notes...
Page 164 MO-C1 Training Layout Scanner Motor Safety Switches Original Set Sensor Original Registration Sensor Original Exit Sensor Original Stop Key Original Width Sensors CIS Unit (5 sections) Slide 164 No additional notes...
Page 165 MO-C1 Training CIS Structure - 1 Safety Switches CIS Unit (5 sections) The CIS unit has 5 contact image sensors linked in a staggered configuration, below the original feed path. Two safety switches cut off the power to the CIS unit when the scanner cover is lifted.
Page 166 MO-C1 Training CIS Structure - 2 The CIS unit is made of 5 contact image sensors connected at 4 joints. From above, the CIS sections are numbered from left to right as CIS-1 to CIS-5. But, when you look at the copy to identify the areas scanned by each section, Printed Image...
Page 167 MO-C1 Training Original Width Detection - 1 Original Set Sensor Original Width Sensor for 30” These sensors detect the width of the original when it is set on the original table: Metric version: 10 sensors (9 original width sensors plus the original set sensor [1], which also functions as a width sensor).
Page 168 MO-C1 Training Original Width Detection - 2 Metric Inch The sensors to the left of center (set sensor position "0") detect B series (Metric) or Architecture (USA) sizes. The sensors to the right of center (set sensor position "0") detect A series (Metric) or Engineering (USA) sizes.
Page 169 MO-C1 Training Scanning Sequence - 1 Original Registration Sensor Original Entrance Roller Original Set Sensor Original Width Sensors First, the original set sensor detects the leading edge of the original and the original width sensors detect the width of the original.
Page 170 MO-C1 Training Scanning Sequence - 2 Original Registration Sensor CIS Unit When the registration sensor detects the leading edge of the original, the machine stops original feed again for 1 second. This is called Delay 2. This gives the operator another chance to check that the original is straight.
Page 171 MO-C1 Training Scanning Sequence - 3 Original Guide Original Stacker Original Exit Sensor Original Exit (Upper) Original Exit (Rear) Original Exit Roller The original exit sensor checks the time between the leading and trailing edges of the original to make sure that there is no jam. The original exit roller feeds the original out of the scanner unit while the scanned image is processed.
Page 172 MO-C1 Training Auto Image Density Correction Leading Edge CIS Unit White Strips Auto Image Density Correction corrects the background density. First, the CIS reads the surface of the white strips on the platen plate. There is one white strip mounted above each section of the CIS unit. The machine uses these readings as reference points for density correction.
Page 173 MO-C1 Training Scanner Mechanism Original Exit Sensor Original Set Sensor Exit Roller Scanner Motor Entrance Roller Timing Belt The scanner motor is a stepper motor. It uses a timing belt to drive the original entrance roller and original exit roller. The original set sensor turns the motor on when an original is set.
Page 174 MO-C1 Training Original Feed Speed Black-and-white Full Color During copying, the speed of original feed is adjusted for magnification (resolution is fixed at 600 dpi). During scanning to a file, the speed of original feed is adjusted for resolution (magnification is fixed at 100%). The scanning speed increases as resolution or magnification lowers.
Page 175 MO-C1 Training Scanner Safety Switches Two switches inside the scanner prevent the LEDs in the CIS from switching on accidentally. When the original feed unit is opened and the switches open, a +24V line connecting each LED driver on the SIB board is disconnected.
Page 176 MO-C1 Training Scanning Long Originals - 1 When long originals (or special originals in a carrier sheet) are fed into the scanner, the scanned portion of the original behind the scanner unit may sag. This can cause the original to slip in the original feed path and interfere with smooth operation of the scanner motor.
Page 177 MO-C1 Training Scanning Long Originals - 2 Switching Switching Switching Switching Switching Position 5 Position 4 Position 3 Position 2 Position 1 Look at the settings above. Note that as more of the original feeds through the scanner unit, the speed of the scanner motor is decreased slightly.
Page 178 MO-C1 Training Prevent Originals from Falling The machine can be set up to hold the trailing edge of the original at the end of the scan job. This prevents the original from falling on the floor. The trailing edge is held in the nip of the exit roller until it can be removed manually.
Page 179 MO-C1 Training D124 Service Training Scanner Replacement and Adjustment: Important Points Slide 179 This section introduces the mechanisms of this engine. Details will be explained in later sections.
Page 180 MO-C1 Training General Cautions Operation - 1 To set the original, lay it face down and align the right side guide with the right edge of the original. This prevents skewing during scanning. Push the leading edge into the scanner. Release it as soon as the machine grabs the leading edge and feeds it partially.
Page 181 MO-C1 Training General Cautions Operation - 2 When you open the scanner cover, always use both hands, placed on either side of it, as shown on the decal. To avoid personal injury or damage to the machine, never open or close the scanner cover with one hand.
Page 182 MO-C1 Training General Cautions Operation - 3 During feeding of a thick original (90 g/m ), the side guides could skew the image and cause parts of the image to disappear at the points where the CIS elements join. In such a case, use the white lines on the original table to guide the original during feeding.
Page 183 MO-C1 Training General Cautions Operation - 4 The CIS unit has five separate elements, and sometimes image density may appear uneven at the joints where these elements connect. When this problem occurs, try scanning in the Photo Mode. » The scanning level may be affected by the original floating away from the exposure glass during scanning.
Page 184 MO-C1 Training General Cautions Service - 1 WARNING: The scanner unit can emit Class 1 M LED radiation when open. Never attempt to view the CIS units with an optical instrument. Always turn off the power switch and disconnect the power plug from the power outlet before beginning any disassembly or adjustment procedure for the scanner unit.
Page 185 MO-C1 Training General Cautions Service - 2 Never attempt to disconnect the signal or power connectors at the CIS unit. This could damage the CIS unit or throw it out of adjustment. When connecting the CIS unit, connect the FFCs at the SIB board.
Page 186 MO-C1 Training Lifting the Left End of the Scanner Unit By disconnecting and lifting the left end of the scanner unit, you can do many procedures on the scanner unit without completely disconnecting the scanner unit and removing it from the machine. If you do this, remove the hex bolts at the left side, but loosen (do not remove) the bolts at the right side.
Page 187 MO-C1 Training Lifting off the Scanner Unit After you have removed the screws, to prevent the scanner unit from falling onto the floor, push it over the main unit slowly. Then, slowly, lift the scanner unit and set it on top of the left rear corner of the scanner stand [A].
Page 188 MO-C1 Training Original Table Make sure to put the screws back in the correct places. Left side [A]: Pivot screw [B]. Right side [C]: Tapping screw [D] Slide 188 Replacement and Adjustment > Common Procedures...
Page 189 MO-C1 Training Replacing the Exposure Glass The exposure glass is very long and thin. It is very easy to break, so handle it carefully. When you reinstall the exposure glass, set the glass so that the blue dot is on the top surface of the front left corner of the glass. Slide 189 There is no beveled edge on this exposure glass.
Page 190 MO-C1 Training Replacing the CIS Cautions To preserve the alignment of its components and to prevent other damage, always handle the CIS unit carefully to protect it from sudden shock and vibration. To prevent fingerprints and smudges, never touch the CIS lens cover with bare hands. Clean the CIS lens cover with lens paper only.
Page 191 MO-C1 Training Replacing the CIS Connecting the CIS to the SIB board When connecting up the cables, look at the CN numbers on the cable and on the printed circuit board. Do not attempt to match the cables to connectors by using CIS numbers.
Page 192 MO-C1 Training Replacing the CIS After Replacement Each CIS unit comes with an SD card. After installing a new CIS, insert the SD card in SD card slot 2, and follow the instructions in the field service manual. Then do SP 4417 and print a test pattern on A3 LEF paper, as explained in the field service manual.
Page 193 MO-C1 Training Original Feed Roller, Original Exit Roller The urethane coating [A] is fragile. Always hold the roller at [B], where its surface does not have a coating. Slide 193 No additional notes...
Page 194 MO-C1 Training Removing the Top of the Scanner Unit After disassembly (see the service manual), lift and remove the top of the scanner unit. The latches on either end can fall off easily. Immediately after you lay the top down, confirm that both these latches are still on the shaft and have not fallen off while lifting and moving the top.
Page 195 MO-C1 Training Removing the Operation Panel There are two connectors under the operation panel. Be sure to disconnect these before you try to pull the operation panel away from the machine. Slide 195 No additional notes...
Page 196 MO-C1 Training Scan Magnification Correction (Sub-scan) Magnification (enlargement/reduction) in the sub scan (vertical) direction is done by adjusting the speed of the scanner motor with SP2116 (Copier Sub Scan Magnification Setting) Adjustment is done relative to the default setting of 0, which means 100%. If you reduce the setting, this increases the speed of the scanner motor and the sub-scan length of the image is reduced when it is printed.
Page 197 MO-C1 Training D124 Service Training Image Processing Detailed Descriptions Slide 197 No additional notes...
Page 198 MO-C1 Training Image Data Path (Copying) Slide 198 The blue arrows show the path of data through the machine. IJ Plotter: Ink jet print engine...
Page 199 MO-C1 Training Copy Mode Image Processing Selections Drawing: For line drawings with fine lines that could easily break up during copying. Text: Mainly text with few or no illustrations. Photo: Glossy photos, photos printed on paper, re-produced photos (generation copies). Text/Photo: Text mixed with photos and drawings.
Page 200 MO-C1 Training Print Mode Image Processing Selections The following can be selected with the printer driver. Normal (Default): The target for color reproduction quality in printing is RGB monitor color Color/Monochrome: Aims for B&W reproduction as detected by the human eye. CUD Print: Adjusts colors so they are easily distinguished by those with color blindness.
Page 201 MO-C1 Training Image Processing Problems Photo images that have areas filled with dithering or fine lines frequently exhibit moiré. For images where moiré does not stand out with 1:1 copying, changing the rate of magnification could cause moiré to appear. If 0.5 mm bands occur in halftone areas of uneven density, switch to Photo/Text mode (or Text mode), so that banding does not stand out.
Page 202 MO-C1 Training D124 Service Training Paper Feed Detailed Descriptions Slide 202 No additional notes...
Page 203 MO-C1 Training Overview Slide 203 This slide introduces the main components of the paper feed mechanism. Details for each component will be explained later. 1. DRESS sensor 2. Platen 3. Paper transport fan 4. Registration roller 5. Bypass sensor 6. Pre-registration sensor 7.
Page 204 MO-C1 Training Sensors in the Paper Feed Path DRESS Sensor Registration Standby Position Paper Leading Edge Registration Roller Exit Sensor Bypass Sensor Exit Roller Cutter Pre-registration Sensor Paper Standby Position (Roll 2) Paper Standby Position (Roll 1) Roll 1 Roll Exit Sensor Roll 2 Roll Feed Roller Roll Entrance Sensor...
Page 205 MO-C1 Training Mechanical Procedure for Roll Initialization Just after the machine power is turned on, the nip between the roll feed roller and its idle roller is closed. If the user installs a roll, the machine initializes the roll as follows: When the paper entrance sensor detects the leading edge, the roll feed motor feeds until the pre-registration sensor...
Page 206 MO-C1 Training Roll Feed Mechanism Feed Roller Feed Idle Roller Paper Release Sensor Entrance Sensor Roll Feed Idle Roller Drive Gear Roll Feed Clutch Spool Roll Paper Feed Motor When the roll paper feed motor rotates forward, the feed roller feeds the paper into the machine.
Page 207 MO-C1 Training Initializing the New Paper Roll - 1 Feed Roller Feed Idle Roller Roll Feed Roller Drive Gear Roll Paper Feed Motor The operator manually inserts the leading edge of the roll sheet into the paper path slot of the roll feeder. The roll feed roller rotates briefly.
Page 208 MO-C1 Training Initializing the New Paper Roll - 2 Feed Roller Feed Idle Roller Roll Feed Roller Drive Gear Roll Paper Feed Motor A prompt appears on the screen and asks the user if the paper should be cut ("Cut" or "No Cut"). The operator presses "Cut" (recommended). The user then selects Paper Type and Thickness.
Page 209 MO-C1 Training Initializing the New Paper Roll - 3 Exit Roller Registration Roller Roll Feed Roller Pre-registration Sensor Vertical Feed Path Roll Paper Feed Motor Paper Exit Sensor The roll feed roller feeds the paper over the feeler of the paper exit sensor and out of the roll feeder into the vertical feed path of the main machine.
Page 210 MO-C1 Training Initializing the New Paper Roll - 4 When the DRESS sensor DRESS Sensor detects the leading edge of the paper, the vertical motor stops. Exit Roller Registration Roller Slide 210 No additional notes...
Page 211 MO-C1 Training Initializing the New Paper Roll - 5 Feed Roller Feed Idle Roller Paper Release Sensor Entrance Sensor Roll Feed Idle Roller Drive Gear Roll Feed Clutch Roll Paper Feed Motor At the same time, the roll feed motor and clutch also stop. Then the clutch turns on again but the motor rotates counter-clockwise.
Page 212 MO-C1 Training Initializing the New Paper Roll - 6 The vertical motor turns on DRESS Sensor again, and feeds the paper forward to the cutter. The cutter turns on and cuts Cutter the paper. Registration The vertical feed motor turns Standby Position on again, feeds the paper...
Page 213 MO-C1 Training Initializing the New Paper Roll Loading Roll 2 if Roll 1 Already Loaded When the user feeds the edge of a roll into Roll Unit 2, as far as Registration Standby the entrance sensor for roll 2, the Position vertical feed motor and the roll Pre-registration...
Page 214 MO-C1 Training Removing a Roll - 1 Before a roll can be removed, the paper must be rewound onto the roll. To do this, the user presses the roll rewind switch for at least 2 seconds and then release it. After this point, there are two different procedures: Reversing a roll from the registration standby...
Page 215 MO-C1 Training Registration Standby Removing a Roll - 2 Position Roll Rewind Pre-registration Switch Sensor From the registration standby position: The vertical motor and roll feed motor reverse feed the paper from the registration standby position (the roll feed clutch stays off, so only the spool is reversing the paper, and not the roll feed roller).
Page 216 MO-C1 Training Registration Standby Removing a Roll - 3 Position Roll Rewind Pre-registration Switch Sensor From the paper standby position: Only the roll feed motor reverse feeds the paper from the paper standby position (the roll feed clutch stays off, so only the spool is reversing the paper, and not the roll feed roller).
Page 217 MO-C1 Training Vertical Feed Mechanism - 1 Vertical Encoder Sensor Registration Roller Vertical Feed Motor Vertical Encoder Wheel Exit Rollers Vertical Encoder HP Sensor Drive Belt Vertical feed motor and timing belt: Drive the registration roller and exit roller through a timing belt, to feed paper through the printer. Vertical encoder sensor: Uses the vertical encoder wheel to control paper feed.
Page 218 MO-C1 Training Vertical Feed Mechanism - 2 Registration Roller Vertical Feed Motor Exit Sensor Drive Belt The registration roller and exit roller are driven by the same motor (vertical feed motor) and timing belt, so they always rotate at the same speed.
Page 219 MO-C1 Training Handling the Vertical Encoder Handle the encoder wheel by its central hub. Never touch the edges of the vertical encoder wheel with bare hands. To clean the edges of the encoder wheel, wipe it with a clean linen cloth dampened with alcohol to remove dust, ink, or fingerprints.
Page 220 MO-C1 Training Cutter Mechanism Cutter Cutter Return Switch Cutter Motor Blade Cutter HP Sensor To cut the paper, the cutter motor switches on. The timing belt pulls the cutter to the left and the circular blade cuts the paper in its path. When the cutter reaches the cutter return switch at the end of the cut, the motor reverses.
Page 221 MO-C1 Training Roll End Detection - 1 If the trailing edge is not fastened to the roll core: The machine signals roll paper end when the trailing edge passes the roll entrance sensor (1) and then the roll exit sensor (2). Both actuators pop up when the trailing edge of the paper passes.
Page 222 MO-C1 Training Roll End Detection - 2 If the trailing edge is fastened to the roll core: At the end of the roll, the trailing edge of the paper remains attached to the roll core, but the paper continues to feed. The paper is pulled tight, up against the actuator of the roll end sensor (3).
Page 223 MO-C1 Training Remaining Paper Detection - 1 The core of the roll and the encoder wheel rotate together. Roll Core Encoder sensor 2: Counts the rotations of the edge roll core, which depend on how much paper remains Encoder Sensor 2 on the roll.
Page 224 MO-C1 Training Remaining Paper Detection – 2 Operation Panel Display Pulses per Display Diameter of Calculated Second Detected Remaining Roll Amount of Remaining Paper < 130 123 – 156 mm 50 to 100% 130 – 140 110 – 123 mm 30 to 50% 140 –...
Page 225 MO-C1 Training Roll Feed Motor Operation Time Encoder sensor 1: Counts Encoder rotations of the roll feed Sensor 1 motor. This pulse count is used to measure the operation time of the roll feed motor. The roll feed motor (1) and encoder wheel 1 (2) rotate together The encoder wheel and...
Page 226 MO-C1 Training Bypass Feed - 1 Paper Holding Lever Cam Pressure Arm Registration Roller Idle Rollers When the paper holding lever is down, the pressure arm keeps downward pressure on the registration idle rollers to close the nip at the registration roller.
Page 227 MO-C1 Training Bypass Feed - 2 If there is roll paper at the registration standby position, the user must press the roll rewind button to rewind the paper to the paper standby position. The user must then set the correct paper size before starting to make the copy/print.
Page 228 MO-C1 Training Bypass Feed - 3 The paper is pushed into the machine through the open nip of the registration roller (and out the back of the machine) until the front right corner is at the alignment mark [B]. Next, the user lowers the paper holding lever, and closes the front cover.
Page 229 MO-C1 Training DRESS Bypass Feed - 4 Sensor Registration Bypass Standby Leading Edge Sensor Position of the Printout The paper transport fan switches on. The vertical motor switches on and reverse feeds the paper 30 mm and then switches off. The carriage unit moves to the right, and the DRESS sensor checks for skew, detects the right edge and right edge of the paper (in order to detect the paper width), and detects the leading edge of the paper.
Page 230 MO-C1 Training Bypass Feed - 5 Trailing Edge 18 mm are blank at the of the Printout trailing edge. Depends on the mode and paper type. For example, it’s 21 mm for 18 mm color and special paper. This corresponds to the gap between the registration roller and the print heads.
Page 231 MO-C1 Training Paper Holding Lever The registration release sensor [3] detects whether the paper holding lever [1] is up or down. Slide 231 No additional notes...
Page 232 MO-C1 Training Cleaning the Platen There are nine platen plates. It is difficult to adjust their heights correctly after removal, so do not remove the platen plates in the field. Cleaning the platen plates: Open the front cover. Use a linen cloth dampened slightly with water to clean the surface of the platen [A].
Page 233 MO-C1 Training Paper Transport Fan Registration Roller Cutter Exit Roller Paper Transport Pre-registration Sensor This fan provides suction to make sure that the paper stays flat on the platen. When the DRESS sensor detects the leading edge of the paper, the paper transport fan turns ON.
Page 234 MO-C1 Training Transport Fan Duty Adjustment Cutter Registration Exit Roller Roller Paper Transport Pre-registration Sensor When paper is fed to the registration standby position: Paper feed is controlled by the pre-registration sensor until the leading edge of the paper reaches the registration standby position. When the DRESS sensor (functioning here as a paper registration sensor) detects the leading edge of the paper, the paper transport fan goes into Duty 1 phase until the paper feeds 79 mm past the registration standby position.
Page 235 MO-C1 Training D124 Service Training Paper Feed Replacement and Adjustment: Important Points Slide 235 No additional notes...
Page 236 MO-C1 Training Roll Feeders The procedures for Roll Unit 1 are different from those for Roll Unit 2. Refer to the service manual for details on each roll feeder. Slide 236 No additional notes...
Page 237 MO-C1 Training Installing a Roll Unit At the end of the replacement procedure, check the clamps and harnesses at the rear. Make sure that the clamps are closed and that there is absolutely no slack in the harnesses. The harnesses must be tight against the bottom of the PCB box to prevent them from interfering with paper in the bypass feed path.
Page 238 MO-C1 Training Roll Unit Right Covers After attaching the cover, pull the latch forward and then release it, so that it flips back to the rear. Do this a few times to make sure that the cover is not blocking the latch movement.
Page 239 MO-C1 Training Separating the Roller Housing The feed roller housing must be separated from the roll feed unit in order to: Service the rollers Clean (or replace) the entrance or exit sensors. The procedure to separate the roller housing is slightly different between Roll Unit 1 and Roll Unit 2.
Page 240 MO-C1 Training Replacing the Cutter After replacing the cutter unit, execute SP7960- 004 to reset the counter for this unit. After replacing the cutter blade, execute SP7960- 002 to reset the counter for the blade. Slide 240 No additional notes...
Page 241 MO-C1 Training D124 Service Training Ink Supply and Printing Detailed Descriptions Slide 241 No additional notes...
Page 242 MO-C1 Training Overview Carriage The ink supply unit feeds Unit ink to the sub tanks above the print heads in the carriage unit. Ink Supply Unit Slide 242 No additional notes...
Page 243 MO-C1 Training Overview – Ink Supply Unit The ink supply unit holds four replaceable ink cartridges, one for each color (K, C, Y, M). The black cartridge is larger than the other three. Ink Supply Two pumps are connected to the Tube black cartridge to pump ink independently to the K1 and K2...
Page 244 MO-C1 Training Overview – Carriage Unit - 1 The print head sub tanks OCFS Air Release Sensors hold the ink supplied from Solenoid the ink cartridges to the print heads. There is an OCFS (On Carriage Filler Sensor) for Sub Tanks each sub tank.
Page 245 MO-C1 Training Overview – Carriage Unit - 2 OCFS The air release solenoid Air Release Sensors Solenoid releases excess air from the print head sub tanks. The machine reads the horizontal encoder to position the carriage at the correct position so that the solenoid can actuate the purge valves.
Page 246 MO-C1 Training Overview - OCFS (On Carriage Filler Sensors) - 1 The photo above shows the YM print head (1). This unit contains two sub tanks, the Y tank (2) on the left and M tank (3) on the right. The Y actuator arm (4) is attached to the side of the Y sub tank, and the M actuator arm (5) is attached to the side of the M sub tank.
Page 247 MO-C1 Training Overview - OCFS (On Carriage Filler Sensors) - 2 During printing, when ink in the sub tank is partly used up, the sides of the tank move the actuator inwards through the sensor. The part of the actuator pointing up (1) interacts with the OCFS (2) above when it swings in and out of the sensor gap.
Page 248 MO-C1 Training Overview - Print Heads Two black ink print heads, arranged in a staggered configuration, increase the area of coverage for black-and-white printing. This arrangement of black print heads increases the printing speed for large black-and-white documents. There are two print heads for black (K1, K2) and one independent print head for Cyan (C).
Page 249 MO-C1 Training Ink Supply Mechanism - 1 Ink End Sensor Ink Cartridge ID Chip Plunger Ink Cartridge Ink Cartridge ID Switch Ink Supply Needle When the ink cartridge is inserted, the ink supply needle is inserted and sealed into the ink supply port of the cartridge. Ink flows over the plunger as the ink pump motor pumps ink from the cartridge.
Page 250 MO-C1 Training Ink Supply Mechanism - 2 Ink End Sensor Ink Cartridge ID Chip Plunger Ink Cartridge Ink Cartridge ID Switch Ink Supply Needle When ink runs out, the ink pump motor continues to try to pull ink from the ink port. But with no ink, this creates suction between the pump and the ink cartridge.
Page 251 MO-C1 Training Ink Cartridge - 1 ID Chip Ink inside each cartridge is enclosed in a airtight bag that collapses as ink is taken from the cartridge. The unique combination of runners and tracks on the bottoms of the cartridges prevents a cartridge from being installed in the wrong position.
Page 252 MO-C1 Training Ink Cartridge - 2 When an ink cartridge is inserted, the ID chip contacts a CCB (Cartridge ID Chip Control Board) at the back of the ink supply unit slot. When the ID chip and CCB make contact, this tells the machine that the cartridge is inserted correctly.
Page 253 MO-C1 Training Remaining Ink Indicator The ID chip in each ink cartridge stores data concerning the amount of ink remaining in the cartridge. This is displayed on the operation panel as shown here. The percentage numbers indicate the amount of ink remaining, but the numbers do not appear on the operation panel.
Page 254 MO-C1 Training Ink Pump To the Print Head Ink Pump Motor Ink Pump Ink Supply Tube The ink pump motor drives the ink pump cam counter-clockwise. The cam compresses the ink supply tube. The pressure on the tube drives ink up ahead of the cam and creates enough suction to pull ink through the tube.
Page 255 MO-C1 Training Controlling the Ink Supply to the Sub Tanks Structure of the Sub Tank The sides of the sub tanks are flexible. The sides may bend out slightly when the tank is full [1], and then gradually collapse as ink is drained from the tank [2] and [3]. The actual level of the ink does not change at [2] and [3] even though there is less ink in the tank.
Page 256 MO-C1 Training Controlling the Ink Supply to the Sub Tanks OCFS System - 1 Air Sensor Rear Hinge Actuator for OCFS Actuator Arm Weak Spring Ink Sub-tank Actuator for Ink Level Sensor The OCFS (On Carriage Filler Sensor) system monitors the ink level of each ink sub tank in the print heads.
Page 257 MO-C1 Training Controlling the Ink Supply to the Sub Tanks OCFS System - 2 Air Sensors Rear Hinge Actuator for OCFS Actuator Arm Weak Spring Ink Sub-tank Actuator for Ink Level Sensor The OCFS system contains the following parts: An actuator arm is attached to a hinge at the rear. The center of the actuator is mounted on a weak spring attached to the flexible side of the ink sub tank.
Page 258 MO-C1 Training Controlling the Ink Supply to the Sub Tanks OCFS System - 3 Note that the OCFS actuator is not symmetrical. The side of the actuator away from the tank (circled in red) has a wing attached to it. This means that when the actuator moves through the sensor from right to left in...
Page 259 MO-C1 Training Controlling the Ink Supply to the Sub Tanks Monitoring the Sub Tank During Printing When ink is consumed, the side of the tank collapses, and the OCFS actuator moves through the OCFS sensor [1] > [2] > [3]. When the actuator moves out of the gap at [4], the sensor turns off.
Page 260 MO-C1 Training Controlling the Ink Supply to the Sub Tanks What Happens if Air is Detected? Valve Plunger Air Release Solenoid Ink Level Sensor At the end of the job, the machine moves the carriage unit to the right and stops when the tank to be purged is aligned with the air release solenoid.
Page 261 MO-C1 Training Controlling the Ink Supply to the Sub Tanks What Happens After Air Purging? - 1 After air has been purged, ink is pumped from the cartridge up to the sub tank. Then, 0.6 cm of ink is pumped out by reversing the ink pump.
Page 262 MO-C1 Training Controlling the Ink Supply to the Sub Tanks What Happens After Air Purging? - 2 Then, the carriage moves across to the main ink level sensors [4, 5]. The carriage stops when the lower actuator [3] on the OCFS sensor feeler enters the main ink level sensor.
Page 263 MO-C1 Training Controlling the Ink Supply to the Sub Tanks When is Air Purging Done? The air purge, filling, and full position ‘learning’ sequence is done when one of the following occurs: Air is detected in a tank. (The purging and filling is not done until the end of the job.) Before print head flushing When the temperature/humidity sensor detects a...
Page 264 MO-C1 Training Image Registration – Main Scan (1) Carriage DRESS Sensor When a job starts, the horizontal motor switches on and moves the carriage across the paper so that the DRESS sensor can detect the right and left edges of the paper. Slide 264 No additional notes...
Page 265 MO-C1 Training Image Registration – Main Scan (2) DRESS Sensor Receiver The DRESS sensor contains an LED and a receptor. The strength of the reflection of the light from the paper depends on the surface of the paper. Printing problems can occur if the same threshold value of reflectivity is used for every type of paper.
Page 266 MO-C1 Training Image Registration – Main Scan (3) The readings of the DRESS sensor for the left and right margins are used to determine the horizontal placement of the image on paper. This can be adjusted with SP1002 (Print Position Adjustment). This adjustment determines where the carriage starts and ends printing with every horizontal pass across the paper.
Page 267 MO-C1 Training Carriage Unit - 1 Carriage Unit Horizontal Motor Guide Rod During printing, the horizontal motor and drive belt drive the carriage unit to the left and right on its guide rod above the platen. The HRB behind the print head units relays signals to the control board from the horizontal encoder sensor, DRESS sensor, thermistors, ink collection tank, and K2/C/Y/M print heads.
Page 268 MO-C1 Training Carriage Unit - 2 Horizontal Carriage Encoder Sensor Unit Horizontal Encoder Strip Thermistors (x2) Print Head Print Sub Tanks Heads C YM The horizontal encoder sensor on the carriage unit reads the lines on the top edge of the strip.
Page 269 MO-C1 Training Carriage Unit - 3 DRESS Sensor At the beginning of a print job, the carriage moves left then back to the right. The DRESS sensor on the side of the carriage detects the side edges of the paper below. Based on these readings, the machine determines the image print start position.
Page 270 MO-C1 Training Carriage Unit - 4 Ink Level Sensor 1 Ink Level Sensor 2 Ink level sensor 1 checks the position of the actuator mounted on the side of the K1 ink sub tank. Ink level sensor 2 measures the positions of the actuators on the sides of the K2, C, Y, and M sub tanks.
Page 271 MO-C1 Training Carriage Unit - 5 Head Lift Sensors Head Lift Motor Temperature/ Humidity Sensor The temperature/humidity sensor constantly measures the temperature and humidity inside the machine. The machine uses these readings to adjust its operation. The head lift motor can raise the carriage unit (1 mm, 2 mm) to increase the gap between the print heads and thick paper to prevent abrasion.
Page 272 MO-C1 Training Print Head Units - 1 Head thermistor (Black) x1 Head thermistor (Color) x1 Air sensor pairs x5 Purge valves x5 Ink sub tanks x5 (K1, K2, C, Y, M) Ink sub tank feelers x5 Filter units x5 Print heads x4 (K1, K2, C, YM) Ink jet arrays x5 Slide 272 No additional notes...
Page 273 MO-C1 Training Print Head Units - 2 The illustration above shows the print head units. The left print head unit holds the black print heads (K1, K2) and the right print head unit holds the color print heads (C, YM). The black thermistor (1) monitors the heat around the black print head unit, and the color thermistor (2) monitors the heat around the color print head unit.
Page 274 MO-C1 Training Print Head Units - 3 The ink sub tanks (5) hold the ink pumped from the ink cartridges by the ink supply unit. One ink sub tank feeler (6) is attached to the side of each ink sub tank. The OCFS (On Carriage Filler Sensors) and the stationary main ink level sensors on the right side of the machine check the positions of these feelers to determine the level of ink in the sub tanks.
Page 275 MO-C1 Training Print Head Units - 4 The black print head unit on the left [A] holds the black print heads and sub tanks (K1, K2). The color print head unit on the right [B] holds the color print heads and sub tanks (C, YM). You cannot replace one print head (K1, K2, C, or YM) individually;...
Page 276 MO-C1 Training Print Head Piezoelectric Element Print Head Vibration Plate Flow Plate Nozzle Array Plate Each print head contains these parts. When a small electric charge is applied to the piezoelectric element, this causes it to expand and expel ink under pressure. The vibration plate and flow plate apply the ink evenly to the back of the nozzle array plate.
Page 277 MO-C1 Training Carriage Drive Mechanism Carriage Unit Horizontal Encoder Strip Horizontal Timing Encoder Sensor Belt DRESS Sensor Horizontal Motor The horizontal motor drives the timing belt which is attached to the back of the carriage unit. This moves the carriage unit to the left and right. The horizontal encoder sensor detects the top edge of the horizontal encoder strip.
Page 278 MO-C1 Training Handling the Horizontal Encoder Always handle the encoder strip by its ends and edges. Wearing gloves is recommended. Never touch the surface of the horizontal encoder strip with bare hands. To clean the encoder, wipe it with a clean linen cloth dampened with alcohol to remove dust, ink, or fingerprints.
Page 279 MO-C1 Training Temperature Monitoring - 1 There are two thermistors [A]. One is for black ink (K1, K2) and one is for color ink (C, YM). The thermistors measure the temperature around the print head units. The machine uses this information to adjust flow of ink from the print heads.
Page 280 MO-C1 Training Temperature Monitoring - 2 The temperature/humidity sensor [B] is on the right side of the machine above the ink supply unit. It controls the operation of the ink cartridge pump motors in the ink supply unit, to keep the amount of ink pumped to the tank constant.
Page 281 MO-C1 Training Print Head Gap Adjustment - 1 The gap between the print heads and the platen can be changed to prevent the print heads from rubbing the paper during printing. When the user selects a setting to Head Lift change the height of the carriage, the Sensor 1 carriage moves to the right, so that the...
Page 282 MO-C1 Training Print Head Gap Adjustment - 2 The print heads can be raised to two high positions (1 mm, 2 mm). The setting must be done before starting the print job. User Tools > System Settings > Prevent Paper Abrasion Slide 282 At the end of the job, the setting does not return to the default (off).
Page 283 MO-C1 Training Print Head Gap Adjustment - 3 In the User Tools, select [System Settings] > [Next] > [Prevent Paper Abrasion]. Three selections are available for each feed station: Strong (2 mm), Weak (1 mm), Off (standard). Slide 283 After the setting is changed, the following happens: No job in progress.
Page 284 MO-C1 Training Print Head Gap Adjustment - 4 Head Lift Sensor 1 [A] Standard Lift Cam Actuator [B] 2 mm [C] 1 mm Head Lift Sensor 2 When the user changes the user tool setting, the horizontal motor drives the carriage unit to the right side of the machine, where the coupling of the lift motor engages the lift shaft.
Page 285 MO-C1 Training D124 Service Training Ink Supply and Printing Replacement and Adjustment: Important Points Slide 285 No additional notes...
Page 286 MO-C1 Training Caution If ink spills onto a printed circuit board, the print head unit will become unusable and require replacement. Note: Individual heads cannot be replaced. The entire print head unit must be replaced. Always follow instructions and work carefully to avoid spilling ink from the ink tubes and from the ink sub tanks.
Page 287 MO-C1 Training Protect the Platen from Ink Spills Always slide a sheet of paper under the carriage unit when you move it to the center. This protects the platen from ink that could drip from the uncapped print heads. Slide 287 No additional notes...
Page 288 MO-C1 Training Before you Turn the Power on Again Before you turn on the power switch to return the carriage unit to its home position on the right, check the position of the horizontal encoder strip on the left. If the encoder strip is up on the bracket as shown at [A], pull it forward and down so that it is in front of the bracket as shown at [B].
Page 289 MO-C1 Training Replacing the Ink Supply Unit Removing the Ink Supply Unit Before you start: 1. Do SP2090-1 to clear the NVRAM setting for the ink supply unit. 2. Move the carriage to the center of the machine with SP2102-4. 3.
Page 290 MO-C1 Training Replacing the Ink Supply Unit Replacement Kit 1. Ink Supply Unit (ink tubes attached) 2. Ink Cartridges (K, C, Y, M) 3. Ink Sump 4. Ink Sump Cap 5. Rubber Caps 6. Plugs Slide 290 No additional notes...
Page 291 MO-C1 Training Replacing the Ink Supply Unit Before Disconnecting the Tubes Before disconnecting the tubes, press the white plungers to purge air from the ink sub tanks. Slide 291 No additional notes...
Page 292 MO-C1 Training Replacing the Ink Supply Unit Plugging the Ink Tubes Uncapped Capped Plug Plug Disconnect and plug the tubes in this order: C, Y, M, K2, K1 Use an uncapped plug to plug the open end of each ink supply tube.
Page 293 MO-C1 Training Replacing the Ink Supply Unit Caution To prevent an ink spill, never lift the ink supply unit higher than the carriage unit. Slide 293 No additional notes...
Page 294 MO-C1 Training Replacing the Ink Supply Unit Installing a New Ink Supply Unit - 1 The following slides show the main points. See the field service manual for full details. Service ink cartridges must be installed in the new ink supply unit before you initialize the new unit.
Page 295 MO-C1 Training Replacing the Ink Supply Unit Installing a New Ink Supply Unit - 2 Before you start the initialization process, make sure that the ink cartridge cover is open. If the machine is powered on with the cover closed, the machine will start the initial filling sequence and try to move the carriage unit to the home position for capping.
Page 296 MO-C1 Training Replacing the Ink Supply Unit Installing a New Ink Supply Unit - 3 Turn on the machine. Ignore the error that appears on the screen. Check the value of SP2012-1. The value must be 9. If the value is not "9", then change it to 9. Confirm that all five ink supply tubes are connected securely to the dummy tank Do SP2100-5 and input 31.
Page 297 MO-C1 Training Replacing the Ink Supply Unit Installing a New Ink Supply Unit - 4 Make sure the ink supply tubes are flat and stacked correctly. Pass each tube through the top of the carriage unit in this order: K1 > K2 > C > M > Y The tubes should enter the left and leave the right side of the carriage unit in the order shown above.
Page 298 MO-C1 Training Replacing the Ink Supply Unit Installing a New Ink Supply Unit - 5 Before you tighten the pressure plate, push in the ink supply tube bundle until the "L" notch is 4 mm away from the side of the carriage unit. Reattach the pressure plate.
Page 299 MO-C1 Training Replacing the Ink Supply Unit Installing a New Ink Supply Unit - 6 FD5010 Connect the ink supply tubes from left to right in this order: K1 first K2 over K1 on the left Slide 299 No additional notes...
Page 300 MO-C1 Training Replacing the Ink Supply Unit Installing a New Ink Supply Unit - 7 Connect the ink supply tubes from right to left in this order: M first Y over M on the right C over Y, M on the right Slide 300 No additional notes...
Page 301 MO-C1 Training Replacing the Ink Supply Unit Installing a New Ink Supply Unit - 8 Before you turn on the power switch to return the carriage unit to its home position on the right, check the position of the horizontal encoder strip on the left. If the encoder strip is up on the bracket as shown at [A], pull it forward and down so that it is in front of the bracket as shown at [B].
Page 302 MO-C1 Training Replacing the Ink Supply Unit Completing the Procedure Close the ink cartridge cover. Turn the machine on. Flush the print heads. Print a Nozzle Check Pattern and check the condition of the print heads. Replace the service ink cartridges in the ink supply unit with the customer's cartridges.
Page 303 MO-C1 Training Separating the Carriage Unit from the Maintenance Unit - 1 While the machine is idle, the carriage unit is always at the right side of the machine, on top of the maintenance unit, to prevent the print heads from drying out.
Page 304 MO-C1 Training Separating the Carriage Unit from the Maintenance Unit - 2 Moving the carriage unit automatically with 2102-004: Set to 1: Lowers the maintenance unit ink caps and uncaps the print heads. The carriage does not move. Set to 2: Uncaps the print heads and moves the carriage to the left of the platen.
Page 305 MO-C1 Training Separating the Carriage Unit from the Maintenance Unit - 3 Moving the carriage unit manually: 1. Rotate the hex socket at [A] to raise and lower the suction cap [B]. This cap must be lowered before you can move the carriage away from the maintenance unit.
Page 306 MO-C1 Training Separating the Carriage Unit from the Maintenance Unit - 4 Before you start work: Remove the front cover [1]. Raise the paper holding lever [2]. Slide a sheet of paper [3] into the machine as far as the gap between the raised rollers and the platen.
Page 307 MO-C1 Training Separating the Carriage Unit from the Maintenance Unit - 5 To prevent damaging the caps, you must confirm that both the suction cap and K2/color print caps are down before you push the carriage unit away from the home position. Check at [A].
Page 308 MO-C1 Training Separating the Carriage Unit from the Maintenance Unit - 6 If the caps are not moved down: Set a screwdriver in hole [A] and rotate it counter-clockwise to lower the suction cap. Use a flashlight to confirm that the suction cap is down.
Page 309 MO-C1 Training Before you Turn the Power on Again Before you turn on the power switch to return the carriage unit to its home position on the right, check the position of the horizontal encoder strip on the left. If the encoder strip is up on the bracket as shown at [A], pull it forward and down so that it is in front of the bracket as shown at [B].
Page 310 MO-C1 Training Capping the Print Heads Manually Do this procedure only when it is absolutely necessary and the print heads cannot be capped automatically by switching the machine on. You may need to move the carriage manually in the following cases: If the machine is partially disassembled at the end of the work day, the print heads should be capped manually before leaving the machine to sit for more than an hour.
Page 311 MO-C1 Training Capping the Print Heads Manually - 1 Slowly, push the carriage unit to the right side of the machine until it stops. The carriage should be over the maintenance unit. The cleaning unit may be out of position (to the rear) if the machine power was interrupted during the print head cleaning cycle.
Page 312 MO-C1 Training Capping the Print Heads Manually - 2 To lift the suction caps: Set a screwdriver in hole [A] and rotate it counter-clockwise to raise the suction cap. Use a flashlight to confirm that the suction cap is up. Set a screwdriver in hole [B] and rotate it clockwise to raise the K2/color print head caps.
Page 313 MO-C1 Training Capping the Print Heads Manually - 3 Check at [A] to make sure that the caps are up. The suction cap and K2/color print head caps should both be up. Slide 313 No additional notes...
Page 314 MO-C1 Training Replacing Print Head Units Overview The unit on the left is the Black Print Head Unit (K1, K2) [A]. It holds the black print heads and sub tanks. The unit on the right is the Color Print Head Unit (C, YM) [B]. It holds the color print heads and sub tanks.
Page 315 MO-C1 Training Replacing Print Head Units Accessories – Black Print Head Unit 1. Black Print Head Unit 2. Ink Collector Tank 3. Ink Cartridge (K) 4. Bracket x 2 5. Plug x 2 Two plugs are also inserted into the ink supply tubes of the print head unit.
Page 316 MO-C1 Training Replacing Print Head Units Accessories – Color Print Head Unit 1. Color Print Head Unit 2. Ink Collector Tank 3. Ink Cartridges (C, Y, M) 4. Bracket x 2 5. Plug x 3 Three plugs are also inserted into the ink supply tubes of the print head unit.
Page 317 MO-C1 Training Replacing Print Head Units Removal Procedure - 1 Unlock and move the carriage unit to the center of the platen. Separate the main unit from the scanner unit. Remove the ink collector tank [A], and then replace it with the ink collector tank provided with the accessories.
Page 318 MO-C1 Training Replacing Print Head Units Removal Procedure - 2 Before you start disconnecting harnesses, note the position of thermistor connectors [1] and [2]. [1] is the thermistor connector of K2 on the left. [2] is the thermistor connector of C on the right. Make sure that these harnesses are reconnected correctly.
Page 319 MO-C1 Training Replacing Print Head Units Removal Procedure - 3 Disconnect the FFCs and harnesses of both print head units [A]. The FFCs can be discarded. The OCFS sensor harnesses can be discarded. However, you must keep the air sensor harness and the thermistor harness in order to connect the new unit.
Page 320 MO-C1 Training Replacing Print Head Units Removal Procedure - 4 Black Print Heads Color Print Heads Press in the left and then the right plunger to expel air from the ink sub tanks. This equalizes the pressure inside the tanks with the atmosphere. If you forget to do this, ink will come out when you take the tubes off.
Page 321 MO-C1 Training Replacing Print Head Units Removal Procedure - 5 Follow the service manual closely for instructions on how to disconnect and reconnect the ink tubes and plugs. Also, be sure to purge the air from the units when instructed in the manual. Failure to do so could cause damage to the machine, as explained on the previous slide.
Page 322 MO-C1 Training Replacing Print Head Units Removal Procedure - 6 When you remove the old print head unit, put it on a piece of paper, because ink may leak from the bottom of this unit. Discard the old print head unit, along with FFCs, and sensor harnesses.
Page 323 MO-C1 Training Replacing Print Head Units Replacement Procedure - 1 The new print head units each have a sheet of paper under the metal plugs to protect against damage from accidental ink spills. Do not remove this paper until all the ink tubes have been connected to the new unit.
Page 324 MO-C1 Training Replacing Print Head Units Replacement Procedure - 2 When installing a new print head unit, the rear cushion must be installed below the HRB before the harnesses are re-connected. Hold the rear cushion with the cut-out on the right (viewed from above) with the mylar leaf flared from the bottom.
Page 325 MO-C1 Training Replacing Print Head Units Replacement Procedure - 3 On the new print head unit, before you connect the ink supply tubes, press in the plungers to purge air from the sub ink tanks. CAUTION: If any ink or other liquid gets on the PCB in the print head, do not use this print head.
Page 326 MO-C1 Training Replacing Print Head Units Replacement Procedure - 4 Connect the ink tubes to the new units in the correct order. Color print heads » M first » Y over M on the right » C over Y, M on the right Black print heads »...
Page 327 MO-C1 Training Replacing Print Head Units Replacement Procedure - 5 Clean the platen and exit rollers with a clean cloth, slightly dampened with water. Never use alcohol or any other type of organic solvent to clean the platen and rollers. Reassemble the machine.
Page 328 MO-C1 Training Replacing Print Head Units Replacement Procedure - 6 Open SP2400-001. Enter the correct number (see below), press [#], and then touch [EXECUTE]. This SP code resets the counter for the carriage print heads. Choose the correct setting for the replacement. Enter "0"...
Page 329 MO-C1 Training Replacing Print Head Units Replacement Procedure - 7 Then set User Tools – System Settings – Prevent Paper Abrasion to ‘Strong’ This raises the print heads to the maximum height. Then in the Maintenance menu, do the Manual Head Position adjustment.
Page 330 MO-C1 Training Replacing Print Head Units Replacement Procedure - 8 Next, exit the User Tools and execute SP5884 (Factory Setting – Head Gap Backup) to save the adjusted settings. Exit the SP mode. Lower the print heads. Press [User Tools] > System Settings > Next > Prevent Paper Abrasion >...
Page 331 MO-C1 Training Removing the Carriage Unit Removal Procedure - 1 There are paint-locked screws across the top of the machine (under the top cover). These screws are positioned and adjusted at the factory. Never loosen or attempt to adjust these screws. Slide 331 Replacement and Adjustment >...
Page 332 MO-C1 Training Removing the Carriage Unit Removal Procedure - 2 You can see the heads of four paint-locked screws around the top of the maintenance unit. These screws hold a re- enforcement plate. Never loosen or remove any of these screws. Slide 332 No additional notes...
Page 333 MO-C1 Training Removing the Carriage Unit Removal Procedure - 3 Before you remove the ink level sensor bracket, use a pencil or marker to mark the positions of the bosses and screw of the plate. This plate slides forward and back. It must be aligned precisely when it is reinstalled.
Page 334 MO-C1 Training Removing the Carriage Unit Removal Procedure - 4 When you are ready to move the carriage unit out of the machine, prepare a flat clean surface, such as a stool or small table covered with paper, at the right side of the machine. The ink tubes are still connected to the carriage unit, so there is not much space for moving the carriage unit after it is off the guide rod.
Page 335 MO-C1 Training Removing the Carriage Unit Replacement Procedure - 1 At the right side of the machine, note the position of the felt bushing [A] at the bottom and the position of the wheel and race [B] at the top. This is how the carriage unit must be set when it is reinstalled.
Page 336 MO-C1 Training Removing the Carriage Unit Replacement Procedure - 2 When you reattach the paper holding lever, make sure that: The paper holder lever [1] is level. The gears are meshed at the first notch of each [2]. Actuator [3] is down and in the gap of the registration release sensor.
Page 337 MO-C1 Training Removing the Carriage Unit Replacement Procedure - 3 Make sure the tab is engaged and through the hole in the frame as shown, before you reattach the semi-transparent cover and wires. Slide 337 No additional notes...
Page 338 MO-C1 Training Removing the Carriage Unit Replacement Procedure - 4 Attach the ink level sensor bracket but do not tighten it. Position the plate so that it is aligned with the marks that you drew when you removed it. Check the position of the actuators 1 and 2. The actuators must be centered in the gaps of the sensors above and below.
Page 339 MO-C1 Training Removing the Carriage Unit Replacement Procedure - 5 Before you turn on the power switch to return the carriage unit to its home position on the right, check the position of the horizontal encoder strip on the left. If the encoder strip is up on the bracket as shown at [A], pull it forward and down so that it is in front of the bracket as shown at [B].
Page 340 MO-C1 Training Removing the Carriage Unit Replacement Procedure - 6 Do the Auto Adjust Print Head Position procedure. Open the SP mode and do SP5884-003 (Factory Setting – Head Gap Backup) Slide 340 No additional notes...
Page 341 MO-C1 Training Adjusting the Ink Level Sensors When you install a new sensor, do not fasten the bracket tightly at first. Some adjustment is needed. Attach the ink level sensor bracket but do not tighten it. Position the plate so that it is aligned with the marks that you drew when you removed it.
Page 342 MO-C1 Training Installing a Horizontal Encoder If it is dirty, clean it with an alcohol damp cloth, and then dry it with a dry linen cloth. Never use a cotton ball, cotton swab, or tissue paper to clean the surface of the encoder strip. Attach the left end of the strip with the beveled corner pointing up (the right end of the strip is square).
Page 343 MO-C1 Training Installing a Horizontal Encoder Sensor Make sure the top edge of the horizontal encoder strip is inserted into the slot below the horizontal encoder sensor. Slide 343 You must unlock and move the carriage unit before you can remove the sensor.
Page 344 MO-C1 Training Air Solenoid Bracket The position of the air solenoid bracket is adjusted at the factory. Do not remove this screw. Slide 344 No additional notes...
Page 345 MO-C1 Training D124 Service Training Maintenance Unit Detailed Descriptions Slide 345 No additional notes...
Page 346 MO-C1 Training Overview The maintenance unit does the following: Lifts the print head caps to cap the print heads, to prevent them from drying out while the machine is idle. Lowers the print heads at the start of a job to uncap the print heads.
Page 347 MO-C1 Training Components Slide 347 1. Carriage unit 2. Maintenance unit 3. Suction cap/K1 print head cap 4. Slide sensor 5. Maintenance motor 6. Suction pump 7. Suction cap sensor 8. Suction cap actuator 9. Color print head caps (K2, C, YM) 10.
Page 348 MO-C1 Training Capping and Uncapping Overview The K1 print head and the K2, C, YM print heads are uncapped and capped at the same time. However, the mechanisms are different. Slide 348 No additional notes...
Page 349 MO-C1 Training Capping and Uncapping K1 Print Head - 1 The maintenance motor (3) uncaps and caps the K1 print head. While the machine is idle, the K1 print head (1) on the bottom of the carriage unit is capped and sealed by the suction cap (2) to prevent it from drying out.
Page 350 MO-C1 Training Capping and Uncapping K1 Print Head - 2 At the end of the job, the carriage unit (1) moves to the right and positions itself over the maintenance unit (2). The maintenance motor (3) rotates forward again and raises the suction cap to cap the K1 print head.
Page 351 MO-C1 Training Capping and Uncapping K2, C, MY Print Heads - 1 The maintenance lift motor uncaps and caps the K2, C, and MY print heads. While the machine is idle, the K2, C, and YM print heads (1) on the bottom of the carriage unit are capped and sealed by the print head caps (2).
Page 352 MO-C1 Training Capping and Uncapping K2, C, MY Print Heads - 2 At the end of a print job, the carriage unit moves to the right and positions itself over the maintenance unit. The carriage stopper (1) positions the carriage unit so that the caps and print heads are aligned.
Page 353 MO-C1 Training Cleaning Cycle Overview The four steps of the cleaning cycle are done for each print head that requires cleaning. 1. Sliding the cleaning unit to the rear 2. Lifting the suction cap 3. Suction 4. Scraping and wiping Slide 353 No additional notes...
Page 354 MO-C1 Training Cleaning Cycle Step 1. Sliding the Cleaning Unit to the Rear - 1 This step moves the cleaning unit from [A] to [B] in order to clean the K2, C, and YM print heads. This step is done for cleaning the K2, C, and YM print heads in order to position the suction cap (print head cap for K1) correctly.
Page 355 MO-C1 Training Cleaning Cycle Step 1. Sliding the Cleaning Unit to the Rear - 2 At the start of the cleaning cycle, the carriage unit (1) positions itself over the maintenance unit (2). The lift motor (3) rotates in reverse and drives the gear train (4). The gears rotate a shaft with a large cam (5) between two swinging plates attached to the slide arm (6), which is linked to the cleaning unit (7) When the cam pushes the front plate forward, the slide arm and cleaning unit move...
Page 356 MO-C1 Training Cleaning Cycle Step 2. Lifting the Suction Cap The carriage moves to the left and stops when the print head (1) to be cleaned is directly above the suction cap (2). The maintenance motor (3) rotates forward and raises the suction cap. The suction cap actuator (4) and suction cap sensor (5) signal the machine to turn off the motor when the cap is up and sealed on the print head.
Page 357 MO-C1 Training Cleaning Cycle Step 3. Suction The maintenance motor (1) reverses and rotates the cam inside the suction pump (2). The rotation of the cam alternately squeezes and releases the suction tube (3) to create enough pressure to pull ink from the surface of the print head (4). The ink is pulled through the tube which exits at the back of the maintenance unit (5) and continues down to the ink collector tank below the maintenance unit on the right side of the machine.
Page 358 MO-C1 Training Cleaning Cycle Step 4. Scraping and Wiping After lowering the suction cap, the maintenance motor continues to rotate, and drives the cam and linkages that control the scraping and wiping. The rubber scraper [1] is raised to the surface of the print head. The knock lever [2] taps the edge of the scraper, to scrape ink from the print head.
Page 359 MO-C1 Training Manual Print Head Cleaning and Flushing The operator can use the User Tools to clean and flush the print heads whenever a problem with printing occurs. Every execution of print head cleaning and flushing is recorded in NVRAM by a counter (0 to 999999).
Page 360 MO-C1 Training Automatic Downtime Cleaning - 1 Ink can thicken or dry around the nozzles if a print head remains idle for a long time, especially at low temperatures. This can affect the quality of printing. To prevent this, the machine will execute a maintenance cleaning cycle that is appropriate for the length of time that the print heads have remained idle.
Page 361 MO-C1 Training Automatic Downtime Cleaning - 2 The machine monitors two phases of downtime. Idle time 1: Starts after the last sheet exits and all the print heads are capped Idle time 2: Amount of time each head has remained idle These idle time counts are used to determine which of these operations to execute: Air purging (ink supply and purging, filling and cleaning, and...
Page 362 MO-C1 Training Automatic Downtime Cleaning - 3 Down Time Approximate Try to If air is detected in a If no air is detected Time Detect Air? print head *1 < 10 hrs 16 seconds 10 – 24 hrs 9 seconds Ink supply, air purge/ink Small downtime ink purge (power on)
Page 363 MO-C1 Training Automatic Mist Removal Over time, ink can cling to the nozzles and accumulate inside the suction cap and the protective caps of the maintenance unit. Paper dust can also accumulate and interfere with the operation of the nozzles. The illustration above shows droplets of mist (1) and paper fibers/dust (2) that can collect near the nozzles.
Page 364 MO-C1 Training Waste Ink Collection Maintenance Unit Ink Collector Chip Left Ink Sump Right Ink Ink Collector Sump Tank The ink collector tank collects the ink taken from the print heads by the suction pump in the maintenance unit. The ink collector chip detects when the ink collector tank is installed correctly. It will signal an error if the tank is not installed correctly, and printing is disabled.
Page 365 MO-C1 Training Ink Collector Tank - 1 The ink collector tank collects ink during print head cleaning. Ink taken from the surface of the print head [1] by the suction cap [2] and suction pump [3] flows directly out from the rear of the maintenance unit to the ink collector tank [4].
Page 366 MO-C1 Training Ink Collector Tank - 2 The ink collector tank must be replaced after it becomes full. The ink collector tank has an ID chip that confirms when the tank was installed, and that it is the correct type of tank for the machine.
Page 367 MO-C1 Training Right Ink Sump - 1 The ink scraped and wiped from the print head [1] by the scraper and wipers [2] flows through a vent [3], to the right ink sump [4]. Slide 367 No additional notes...
Page 368 MO-C1 Training Right Ink Sump - 2 The machine tells the operator when this tank is near-full and then full. The machine counts the usage of the wiper mechanism in the maintenance unit. Two strokes of the wiper removes ink from the cleaning plate and drops the ink down into the sump below.
Page 369 MO-C1 Training Right Ink Sump - 3 The tank must be replaced when full. The count must be reset with SP2505-002 after the right ink sump has been replaced. There is no sensor to detect when the right ink sump is removed and inserted.
Page 370 MO-C1 Training Left Ink Sump - 1 Occasionally, a printing job will pause long enough for the carriage to move to the left and purge ink over the left ink sump on the left side of the machine. The machine refers to a lookup table to determine how to execute purging.
Page 371 MO-C1 Training Left Ink Sump - 2 The tank must be replaced when full. The count must be reset with SP2505-001 after the left ink sump has been replaced. There is no sensor to detect when the left ink sump is removed and inserted.
Page 372 MO-C1 Training D124 Service Training Maintenance Unit Replacement and Adjustment: Important Points Slide 372 No additional notes...
Page 373 MO-C1 Training Service Precautions Maintenance Unit Base Plate The maintenance unit base plate supports the maintenance unit. These screws hold the base plate under the maintenance unit, which must always remain in the same position below the carriage print heads. The two base plate screws at the back on the right rear panel should never be loosened or removed.
Page 374 MO-C1 Training Ink Collector Tank Pull the tank [A] straight out of the machine. Lay the tank on a flat surface with port [B] facing up. The port at [B] is open and will leak ink if the tank is turned on its side or upside down.
Page 375 MO-C1 Training Ink Collector Tank Sensor Make sure that you install the sensor the correct way up. Slide 375 No additional notes...
Page 376 MO-C1 Training Maintenance Unit Counters You can check the status of the maintenance unit with two counters: SP2231-003 (PM Counter Indication - Maintenance Unit). Displays the status of the maintenance unit as the amount of usage remaining (a percent). SP2231-008 (PM Counter Indication - PM Counter Maintenance Unit).
Page 377 MO-C1 Training Removing the Maintenance Unit A reinforcing plate is mounted inside the inner surface of the right cover, just above the maintenance unit [A]. The heads of the screws are visible around the lift motor [B] on the outer surface of the plate. Never loosen or remove these four screws.
Page 378 MO-C1 Training Removing the Maintenance Unit Be careful not to hit the caps on the machine frame when you pull the maintenance unit out of the machine. The bottom edges of the maintenance unit are covered with ink and will stain any surface where it is placed. Always set the maintenance unit on a surface covered with paper that will absorb ink and can be discarded later.
Page 379 MO-C1 Training Cleaning Procedures in the User Tools Clean Print-heads: Do this when you see broken lines or white patches in the Nozzle Check Pattern. Cleaning consumes ink. Never clean the print heads unless the Nozzle Check Pattern is abnormal. Flush Print-heads: Do this only after three consecutive cleanings and three checks of the Nozzle Check Pattern show that the problem has not be corrected.
Page 380 MO-C1 Training Checking the Nozzles - 1 Paper Bypass Location: Bypass feed This will not appear if paper is not set for bypass feed. Paper Input Location 1: Roll Unit 1 Paper Input Location 2: Roll Unit 2 (Option) This will not appear if Roll Unit 2 is not installed. Select the paper feed station and then touch [OK].
Page 381 MO-C1 Training Checking the Nozzles - 2 Use a loupe or magnifying glass to check the No Problems condition of the pattern. If the pattern shows no broken lines, the machine is ready for operation. If you see bare patches caused by broken lines, one or more print heads Cleaning Required...
Page 382 MO-C1 Training Cleaning the Print Heads Print head cleaning consumes ink. Do this procedure only if there are broken lines or white patches in the printed Nozzle Check Pattern. First, check the ink level indicator in the printer driver to confirm that there is ink in the cartridge.
Page 383 MO-C1 Training Flushing the Print Heads Print head flushing consumes a lot of ink. Never flush the print heads until three print head cleanings have failed to solve the problem. Flushing a print head requires about 3 minutes. After flushing has finished, print another Nozzle Check Pattern.
Page 384 MO-C1 Training If the Nozzle Check Pattern is No Good Even After Three Cleanings and One Flushing Make sure that the ambient temperature and humidity are within the acceptable range: Temperature Range: 10°C to 27°C (50 °F to 81°F) Humidity Range: 15% to 80% Rh Clean the print heads once, and then print a Nozzle Check Pattern.
Page 385 MO-C1 Training If the Nozzle Check Pattern is No Good Even After Three Cleanings and One Flushing 7. If the results are still not satisfactory, open SP2100-004. Enter the number of the print head that is abnormal. » Head 1, K1 (Black), enter 1 »...
Page 386 MO-C1 Training Auto Adjust Head Position - 1 Adjust the print head position if you see these problems in the prints: Broken vertical lines Blurred or streaked colors Select a Paper Source and a Resolution Target Location (Paper Source): » Paper Bypass Location: Bypass paper feed »...
Page 387 MO-C1 Training Auto Adjust Head Position - 2 Touch [Start Printing]. A pattern is printed. If the adjustment succeeded, the pattern will look like this. The black arrow indicates the direction of paper feed. If the automatic adjustment fails, "Failed to adjust"...
Page 388 MO-C1 Training Manual Adjust Head Position - 1 Select a Paper Source and a Resolution, and touch [Start Printing]. Slide 388 No additional notes...
Page 389 MO-C1 Training Manual Adjust Head Position - 2 Look at the test pattern. In each row (A to H), Identify the number of the column where the square is faintest, or select the square where the internal lines overlap to form a solid color. The number above the square is the adjustment value.
Page 390 MO-C1 Training Manual Adjust Head Position - 3 Touch [Adjustment]. Input a value for each row. Use the + and – buttons. Print another test pattern to make sure that the adjustment is correct. The numbers that you just entered must correspond to the condition of the patches on the new test chart, as explained on the previous slide.
Page 391 MO-C1 Training Adjust Paper Feed - 1 Adjust paper feed if you see these problems in the prints: Broken horizontal lines Patchy images (uneven filled areas) White lines at regular intervals Select [Print Test Sheet] for the required paper feed source.
Page 392 MO-C1 Training Adjust Paper Feed - 2 The adjustment value appears to the left of the lightest gray square with straight horizontal lines on both sides. Slide 392 No additional notes...
Page 393 MO-C1 Training Adjust Paper Feed - 3 Touch [Adjustment]. Touch the plus or minus key to enter the value from the test print. Slide 393 No additional notes...
Page 394 MO-C1 Training Adjust Print Position - 1 Do this procedure to check and adjust the print start position at the upper left corner of each sheet. Slide 394 No additional notes...
Page 395 MO-C1 Training Adjust Print Position - 2 A test pattern prints. The black arrow indicates the direction of paper feed. Rotate the test sheet 180 degrees. [A] is the top margin and [B] is the left margin. Touch the arrow keys to adjust the margins. Increasing the value for the top and left margin moves the print position down and to the right.
Page 396 MO-C1 Training D124 Service Training Maintenance Slide 396 This section explains the main points about maintenance. For full details about the PM table, and the cleaning and lubrication procedures, see the Maintenance section in the Field Service Manual.
Page 397 MO-C1 Training PM Table: Important Points to Note Replacement Maintenance Unit: Replace every 20 km Print Head Units: Replace every 20 km, if necessary » After replacing a print head unit, print the nozzle check pattern. If defects appear, do the print head cleaning procedure, and the flushing procedure also if needed.
Page 398 MO-C1 Training PM Counters After replacing a PM part, reset the counter. Black Print Head Unit (K1, K2): SP 2400-001 Color Print Head Unit (C, YM): SP 2400-001 Ink Collector Tank: ID chip » An ID chip inside the ink collector tank records the count and disables the tank at the end of its service life.
Page 399 MO-C1 Training Cleaning Overview The service manual has detailed procedures for cleaning all components. The next few slides contain some important points about cleaning some of the components that are not normally seen in copiers. See the service manual for full details. Slide 399 Service Manual >...
Page 400 MO-C1 Training Cleaning Horizontal Encoder Wipe both sides of the encoder strip with a piece of clean linen cloth dampened with alcohol. Clean the strip as far as the carriage on the right, move the carriage to the left, and then clean the other end of the strip. Never touch or handle the surface with bare hands.
Page 401 MO-C1 Training Cleaning Ink Level Sensors Move the carriage unit to the left, using SP 2102-4, as explained earlier. Clean the sensors with a blower brush. Slide 401 No additional notes...
Page 402 MO-C1 Training Cleaning Maintenance Unit After replacing the ink collector unit, always remove ink that has hardened around the wiper blade [A], suction cap [B], and three print head caps [C]. Use a tightly wrapped linen cloth dampened with water. Never use cotton, tissue, or any other material that could leave fibers around the suction cap or the print head caps.
Page 403 MO-C1 Training Cleaning Right Ink Sump Replace the right ink sump when the machine alerts you that it is full. Cover the top of the tank with some paper and tape, and then discard it. Follow the local laws and regulations regarding the disposal of this item.
Page 404 MO-C1 Training Cleaning Left Ink Sump Use a dry cloth wrapped around the tip of a small screwdriver to clean around the openings. Use the bare tip of a small screwdriver to remove hardened ink that cannot be removed by wiping with the cloth. Replace the left ink sump when the machine alerts you that it is full.
Page 405 MO-C1 Training Cleaning Ink Tube Guide Use a damp cloth to clean the back of the guide where it rubs against the frame during operation. Slide 405 No additional notes...
Page 406 MO-C1 Training Cleaning Platen Use a linen cloth dampened slightly with water to clean the surface of the platen [A]. Then wipe with a dry cloth. Never use alcohol to clean the platen. Use a blower brush to clean the holes in the plates [B]. Slide 406 No additional notes...
Page 407 MO-C1 Training Cleaning Vertical Encoder While turning gear [A] and the wheel, clean the edge of the wheel [B] with a piece of clean linen cloth dampened with alcohol. Never touch or handle the surface with bare hands. Never use a cotton swab or cotton ball, tissue paper, or any other material that could shed and leave fibers on the edge of the encoder wheel.
Page 408 MO-C1 Training Cleaning Roll End Sensors, Roll Unit Paper Release Sensor Clean these sensors with a blower brush. Paper dust can get on these sensors, especially the roll end sensors. Slide 408 No additional notes...
Page 409 MO-C1 Training Cleaning Roll Feed Roller Clean the roller with a dry, clean cloth to remove paper dust. Slide 409 No additional notes...
Page 410 MO-C1 Training Cleaning DRESS Sensor Clean with a cotton swab or dry cloth. Ink can build up on this sensor. This can cause errors in width detection and registration when using glossy or translucent paper. The customer cannot clean this sensor. The recommended cleaning interval is 10 km, but if the customer uses tracing paper, or frequently uses Quality Mode, the DRESS sensor should be...
Page 411 MO-C1 Training Ink Collector Tank The PM interval for the machine is 10 km. But the ink collector tank fills up at about 8 km (depending on the image contents of the printouts that have been made). The user can replace this tank easily, so when you arrive at 10 km, you can take away the old tank from the shelf and put a new empty one on the shelf in its place.
Page 412 MO-C1 Training D124 Service Training Troubleshooting for the Printer Engine Slide 412 Service Manual > Troubleshooting > Printing Problems This section gives an outline of troubleshooting steps for various symptoms. Refer to the service manual for full details.
Page 413 MO-C1 Training White Lines or Horizontal Banding Print heads may be clogged; do the Clean Print-heads procedure from the Maintenance Menu. Use Flush Print-heads if necessary. Do the Adjust Paper Feed procedure from the Maintenance Menu. Clean or replace the maintenance unit. Inspect the vertical encoder wheel for dirt or damage.
Page 414 MO-C1 Training Horizontal Lines In Margins If there are horizontal lines in areas (1) and (2): Replace the print head units. Replace the carriage unit. Slide 414 No additional notes...
Page 415 MO-C1 Training Vertical Banding (White or Colored) Print Head Out of Position; do the Adjust Print Head procedure from the Maintenance Menu. Check the horizontal encoder strip and make sure that it has been installed correctly. Inspect the horizontal encoder strip for dirt or damage. Clean or replace it.
Page 416 MO-C1 Training Poor Image Quality (1) Image blurred (2) Lines not straight (3) Overall poor color quality (4) Uneven density (5) Double lines in graphics or text Gap Adjustment: Make sure that the gap between the carriage and the platen is correct for the type and thickness of the paper. Print heads clogged: Clean the print head(s).
Page 417 MO-C1 Training Text Out of Position Inspect the horizontal encoder strip for dirt or damage. Clean or replace. Inspect the vertical encoder wheel for dirt or damage. Clean or replace. Inspect the platen for shreds of paper or other obstacles. Inspect the platen plates for dirt or damage.
Page 418 MO-C1 Training Ink Scattering Gap Adjustment: Make sure that the gap between the carriage and the platen is correct for the type and thickness of the paper. Print heads clogged: Clean the print head(s). Flush them if necessary. Faulty Maintenance Unit: Clean or replace. Faulty Carriage Unit: Replace.
Page 419 MO-C1 Training Mixed Colours Mixed colors means two ink colors and one color seeps into the track of another color. This can occur only at the YM print head because the print head is shared. Print heads clogged: Clean the YM print head. Flush if necessary.
Page 420 MO-C1 Training Image Abraded, Paper Torn or Dog-eared, Ink Running Gap Adjustment: Make sure that the gap between the carriage and the platen is correct for the type and thickness of the paper. Inspect the platen, carriage unit, and maintenance unit for paper fragments.
Page 421 MO-C1 Training Colour Too Light Make sure the printer driver color settings are set correctly. Enhance the image with an image editor. Slide 421 No additional notes...
Page 422 MO-C1 Training Part of Image Missing, Text Misaligned Make sure that the printer driver settings for paper type match the type of paper loaded. Make sure all the print cartridges have sufficient ink. Faulty Controller: Replace the controller board. Slide 422 No additional notes...
Page 423 MO-C1 Training Skewed Image Inspect the platen, carriage unit, and maintenance unit for paper fragments. Slide 423 No additional notes...
Page 424 MO-C1 Training Bold Text Not Printed as Bold Printer driver: Check the Increase bold with font size checkbox. Make sure that bold was selected in the application. Slide 424 No additional notes...
Page 425 MO-C1 Training Environmental Conservation Technology for Environmental Conservation Energy Saving Slide 425 This section explains the technology used in this machine for environmental conservation, and the default settings of related functions.
Page 426 MO-C1 Training Promote Use of Energy Saving Features Energy Saver Mode Proper use of energy saver modes saves energy and is environmentally friendly. Slide 426 No additional notes...
Page 427 MO-C1 Training Energy Saver Modes - 1/2 Energy saver mode should be utilized to save energy & protect environment. Area shaded grey in diagram above represents amount of energy saved. Slide 427 Energy Saver Modes Customers should use energy saver modes properly, to save energy and protect the environment.
Page 428 MO-C1 Training Energy Saver Modes - 2/2 Timer Settings The user can set these timers with User Tools (System settings > Timer setting) » Low power mode timer (1 to 240 min): Default setting: 1 minute » Sleep mode timer (1 to 240 min): Default setting: 14 min.
Page 429 MO-C1 Training Slide 429 No additional notes...

Ricoh D124 Service Training

Quick Links

Related Manuals for Ricoh D124

Summary of Contents for Ricoh D124