Page 1
C5300/C5100 Color LED Page Printer MAINTENANCE MANUAL ODA/OEL/INT 2003-3-28 Rev.1 www.eManualpro.com 1 / 148 42049001TH Rev.1...
Page 2
• In preparing the document, efforts have been made to ensure that the information in it is accurate. However, errors may be crept into the document. Oki Data assumes no responsibility for any damage resulting from, or claimed to be the results of, those repairs, adjustments or modifica- tions to the printers which are made by users using the manual.
LAN, USB, Centro I/F Duplex Board 2nd Tray Board CU Board LVDS Driver Front Sensor Board LEISUS Video Interface K LED HEAD (data8bit × 4, CU-FAN fsync × 4, Isync, wclk) Y LED HEAD DCON Paperfeed Solenoid M LED HEAD CU Area C LED HEAD 33MHz...
Page 6
USB I/F LAN I/F Duplex Board 2nd Tray Board CU Board Front Sensor Board LEISUS Video Interface K LED HEAD (data8bit × 4, fsync × 4, Isync, wclk) Y LED HEAD ASIC Paperfeed (ARBOKS) Solenoid M LED HEAD C LED HEAD 66MHz CU Area DCON I/F, LSYNC...
www.eManualpro.com Printer Configuration The inside of C5300 printers is composed of the following: • Electrophotographic Processor • Paper Paths • Controller Block (CU and PU) • Operator Panel • Power Units (High Voltage Unit and Low Voltage Unit) Figure 1-2-1 shows the configuration of each printer. Figure 1-2-1 42049001TH Rev.1...
Page 8
The inside of C5100 printers is composed of the following: • Electrophotographic Processor • Paper Paths • Controller Block (CU and PU) • Operator Panel • Power Units (High Voltage Unit and Low Voltage Unit) Figure 1-2-2 shows the configuration of each printer.
Option Configuration The following options are available for C5300/C5100. (1) 2nd Tray (2) Duplex Unit (3) Expansion Memory (ML5300) 64 MB (4) Expansion Memory (ML5100) 64/256 MB (5) Hard Disk (ML5300) 10 / 42049001TH Rev.1...
www.eManualpro.com Specifications External Dimensions Height: 345 mm. Width: 422 mm. Length: 561 mm. Weight Approx. 20 kg (except consumables) Paper Type: Plain paper, Transparencies (Recommended: MLOHP01) Size: Postal card, Legal 13" or 14", Executive, A4, A5, B5, A6 (A6 held in and fed from only 1st tray and front feeder) Weight: 1st tray 55 kg to 103 kg (64 to 120 g/m...
Page 11
www.eManualpro.com (12) Temperature and Relative Humidity Temperatures Temperature condition Celsius Remarks Operating 10 to 32 17 to 27 Celsius (Temperatures to assure full color print quality) Non-Operating 0 to 43 Power off Storage (Max. One Year) -10 to 43 With drum and toner Delivery (Max.
Oki Data CONFIDENTIAL PARTS REPLACEMENT This section describes the procedure for replacing the parts, assemblies and units in the field. The replacing procedure is given for detachment. To attach, use the reverse procedure. Precautions in Replacing Parts Before replacing the parts, be sure to remove the AC cable and the interface cable.
Page 13
Oki Data CONFIDENTIAL [Maintenance Tools] Table 2-1 lists tools necessary to replace the printed circuit boards and the units. Table 2-1 Maintenance Tools Service Tools Q' ty Place of use Remarks No. 1-100 Philips 2~2.5 mm screws screwdriver No. 2-200 Philips...
Oki Data CONFIDENTIAL Part Replacement Procedures This section describes the procedures for replacing the parts and assemblies shown in the following disassembly chart: 2.2.1 Top Cover Open the top cover assy. Remove the eight screws 1 to detach the cable cover 2 and the top cover 3.
Oki Data CONFIDENTIAL 2.2.2 Left Side Cover Open the top cover 1. Open the feeder unit 2. Remove the screw 3 to detach the left side cover 4. Figure 2-2-2 Left Side Cover 16 / 42049001TH Rev.1...
Oki Data CONFIDENTIAL 2.2.3 Right Side Cover (1) Open the top cover 1. (2) Open the feeder unit 2. (3) Loosen the screw 3 to detach the right side cover 4. Figure 2-2-3 Right Side Cover 17 / 42049001TH Rev.1...
Oki Data CONFIDENTIAL 2.2.4 Face-Up Tray Open the face-up tray 1 in the direction of the arrow, and disengage it at its two places to detach it. Figure 2-2-4 Face-Up Tray 18 / 42049001TH Rev.1...
Oki Data CONFIDENTIAL 2.2.6 LED Assy / LED Assy Springs Open the top cover 1. Remove the cable connection of, and disengage the two hooks of, the LED assy 2 to detach the assy (the two springs 3 become detached together with the LED Assy 2).
Oki Data CONFIDENTIAL 2.2.7 Controller PWB C5300 Remove the Print Engine Controller PWB (see section 2.2.8). Remove the screw 1 and then the head cable 2. Remove the eight screws 3, then detach the controller PWB 4. × Figure 2-2-7-1 Controller PWB (C5300) 21 / 42049001TH Rev.1...
Page 21
Unscrew the three screws 1 to remove the plate-shield assy (GDI) 2. Remove the screw 3 and then the head cable 4. Remove the six screws 5 and the connector 6, then detach the controller PWB 7. × Figure 2-2-7-2 Controller PWB (C5100) 22 / 42049001TH Rev.1...
Oki Data CONFIDENTIAL 2.2.8 Print Engine Controller PWB C5300 Open the top cover. Remove the right side cover (see section 2.2.3). Remove the connector 1, and disengage the two hooks 2 of to detach the FAN (CU) 3. Remove the three screws 4 to detach the plate shield assy (PCL) 5.
Page 23
Remove the plate shield assy (GDI) [see section 2.2.7, steps (1) to (3)]. Remove the three screws 1 and all the connectors to detach the print engine controller PWB Figure 2-2-8-2 Print Engine Controller PWB (C5100) 24 / 42049001TH Rev.1...
Oki Data CONFIDENTIAL 2.2.9 Top Cover Unit. Remove the top cover (see section 2.2.1). Remove the left side cover (see section 2.2.2). Remove the right side cover (see section 2.2.3). Remove the rear side cover (see section 2.2.5). Remove the plate-shield assy (GDI) [see section 2.2.7, step (2)].
Oki Data CONFIDENTIAL 2.2.10 Controller Panel Assy Open the top cover. Open the feeder unit. Remove the right side cover (see section 2.2.3). Remove the plate-shield assy (GDI) [see section 2.2.7, step (2)]. Make control panel assy connector removal (see section 2.2.8).
Oki Data CONFIDENTIAL 2.2.11 Board RSP / Environment Sensor / Top Cover Handle Remove the control panel assy (see section 2.2.10). Disengage the two claws of the lever-lock 2 to remove the frame OP 1, and remove the lever-lock 2 and the spring-compression 3.
Oki Data CONFIDENTIAL 2.2.12 Low Voltage Power Unit / FAN (ID) / FAN (PowL) / Hopping Motor / Fuser Motor Remove the print controller PWB (see section 2.2.8). Remove the controller PWB (see section 2.2.7). Remove the film 1 and the frame duct 2 to demount the FAN (ID) 3.
Oki Data CONFIDENTIAL 2.2.13 Board-PRD Remove the right side cover (see section 2.2.3). Remove the print engine controller PWB and the controller PWB (see sections 2.2.7 and 2.2.8). Remove the film and the low voltage power unit (see section 2.2.12).
Oki Data CONFIDENTIAL 2.2.14 Guide - Eject Assy / Color Registration Assy / Board-RSM Remove the left side cover, the write side cover, the rear cover and the top cover unit (see sections 2.2.2, 2.2.3, 2.2.5 and 2.2.9). Remove the engine controller PWB, the controller PWB and the film [see sections 2.2.7 and 2.2.8, and step (3) of section 2.2.12].
Oki Data CONFIDENTIAL 2.2.15 FAN (Fuser) / Belt Motor / High Voltage Power Supply Board / Cover Open Switch / Image Drum Up/Down Sensor Remove the left side cover (see section 2.2.2). Make screw 1 and connector removal to detach the belt motor 2.
Oki Data CONFIDENTIAL 2.2.16 Multipurpose Tray (MPT) Assy Open the MPT assy 1. Remove the two stoppers and the two supports to detach the MPT assy 1. Stopper (each side) Support (each side) Figure 2-2-16 MPT Assy 32 /...
Oki Data CONFIDENTIAL 2.2.17 Feeder Unit / Board-RSF / Multipurpose Tray (MPT) Hopping Roller / Multipurpose Tray (MPT) Frame Separator / Cover-Front Open the top cover. Remove the left side cover (see section 2.2.3). Make plate-shield (GDI) and connector removal (see section 2.2.7).
Oki Data CONFIDENTIAL 2.2.18 Main Motors / Solenoid / Paper-End Sensor (1) Remove the left side cover, the right side cover, the rear side cover, the top cover unit and the feeder unt (see sections 2.2.2 , 2.2.3, 2.2.5, 2.2.9 and 2.2.17).
Page 34
Oki Data CONFIDENTIAL × × Figure 2-2-18 Main Motors / Solenoid / Paper-End Sensor 35 / 42049001TH Rev.1...
Oki Data CONFIDENTIAL 2.2.20 Shaft Eject Assy (FU) / Shaft Eject Assy (FD) / Eject Sensor Detach the eject assy 1. Disengage the latch to separate the guide-eject-lower 2 and the guide-eject-upper 3. Remove the gear-idle-eject 4, then detach the shaft assy - eject (FU) 5 and the shaft assy - eject (FD) 6.
Oki Data CONFIDENTIAL 2.2.21 Fuser Unit (1) Open the top cover 1. (2) Rise the fuser unit lock levers (two blue portions) 2 in the directions of the arrows to detach the fuser unit 3. (Blue) Figure 2-2-21 Fuser Unit 38 / 42049001TH Rev.1...
Oki Data CONFIDENTIAL 2.2.22 Belt Unit (1) Open the top cover 1. (2) Remove the image drum unit. (3) Turn the lock levers (two blue portions) 2 in the direction of the arrow ( ) and, grasping the lever (blue) 3, detach the belt unit 4.
Oki Data CONFIDENTIAL ADJUSTMENTS Adjustments on C5100 printers are made by operator panel key entry. In addition to a standard menu, there is a maintenance menu in the display of their operator panels. The menu that serves the purpose of intended adjustment is to be selected.
Oki Data CONFIDENTIAL Maintenance Modes and Their Functions 3.1.1 Maintenance Menu Maintenance menu is contained in a standard menu category. Items that can be set from Maintenance menu are as follows: Maintenance Menu Values in shaded areas are initial settings.
Oki Data CONFIDENTIAL 3.1.2 Engine Maintenance Mode Engine Maintenance mode includes three modes, levels 1 to 3. The level 1 is intended for assistance in checking media transport systems and the basic operations of printing systems etc. The level 2, which sets consumable counters and tests color registration adjustment function, does not require relatively special knowledge.
Oki Data CONFIDENTIAL 3.1.2.2.1 Entering self-diagnostic mode (level 1) 1. While holding the MENU+ and MENU- keys down at the same time, turn printer power on to enter System Maintenance mode. 2. Use MENU+ or MENU- key keystrokes until “ENGINE DIAG MODE” appears (a few keystrokes), and then press the ENTER key to display “DIAGNOSTIC MODE”.
Page 43
Oki Data CONFIDENTIAL Toner sensor C Toner sensor Y Image drum up/down sensor Humidity sensor Toner sensor K Toner sensor M Fuser thermistor Exit sensor Cover open SW Duplex-in sensor Write sensor Duplex cover open sensor Entrance sensor 2...
Page 44
ROW SCAN NO. Display Display Display Display Tray-1 paper-end Entrance L: Paper present L: Paper present L: Paper present SWITCHSCAN00 Entrance sensor 1 sensor sensor 2 H: Paper absent H: Paper absent H: Paper absent L: Paper present L: Paper present Write sensor SWITCHSCAN01 Exit sensor...
Oki Data CONFIDENTIAL 3.1.2.4 Motor and clutch test This self-check routine is used for motor and clutch testing. 1. Go into the self-diagnostic (level 1) mode, press the MENU+ or MENU- key until upper display of “MOTOR & CLUTCH TEST” is brought up, and press the ENTER key (the MENU+ key increments a test item and the MENU- key decrements a test item).
Page 46
Oki Data CONFIDENTIAL Fuser Motor ID Motor (C) ID Motor (M) ID Motor (Y) ID Motor (K) Duplex Solenoid Duplex Clutch Cassette 1 Hopping Motor Hopping Solenoid Duplex Motor Cassette 2 Clutch Belt Motor Cassette 2 Motor Figure 3-3...
Oki Data CONFIDENTIAL 3.1.2.5 Test printing This self-diagnostic routine is used when PU-inside test patterns are printed. The other test patterns are in controller’s storage. 1. Go into the self-diagnostic (level 1) mode, press the MENU+ or MENU- key until “TEST PRINT”...
Page 48
Oki Data CONFIDENTIAL COLOR Y:ON M:ON → C:ON K:ON 4. With “PRINT EXECUTE” on the lower display after step 2, when the ENTER key is pressed, test printing is executed using the values set in steps 2 and 3. Pressing the CANCEL key stops the test printing.
Page 50
Oki Data CONFIDENTIAL • The following messages are showing during printing. P=*** W=*** P: Number of test pages printed (prints) W: Wait time for printing (in seconds) • Use the MENU+ key to change the display. T=*** U=***[***] H=***% B=***[***]...
Page 51
Oki Data CONFIDENTIAL • Pressing the MENU+ key changes the display. BELT=**** BELT: Belt motor speed setting • With the press of the MENU+ key, the display is switched. HT:**** CH:**** DB:**** HT, CH and DB are high-voltage table IDs.
Oki Data CONFIDENTIAL 3.1.2.6 Consumable counter display The self-diagnosis is used to indicate consumable consumption status. 1. After entering the normal self-diagnostic mode, press the MENU+ or MENU- key until “CONSUMABLE STATUS” appears on the upper display, and hit the ENTER key (the MENU+ key is for test item increment, and the MENU- key for test item decrement).
Oki Data CONFIDENTIAL 3.1.2.8 Operator panel display Display Displayed Message Description ONLINE .xxxx Indicates the printer is on-line. ttttttt OFFLINE .xxxx Indicates the printer is off-line. ttttttt FILE ACCESSING Indicates a device access is being performed during charge system operation.
Page 54
Oki Data CONFIDENTIAL Displayed Message Description CANCELING JOB Indicates that, as unauthorized, printing was canceled (for job (USER DENIED) account management): 1. A job was received from a user unauthorized to perform printing. 2. A job was received from a user unauthorized to perform color printing.
Page 55
Oki Data CONFIDENTIAL Displayed Message Description PRESS ONLINE SW Prompts the operator to press the ONLINE switch to clear the INVALID DATA warning message, as invalid data was received. Displayed when an unsupported PDL command is received or, without an HDD, a spool command is received.
Page 56
Oki Data CONFIDENTIAL Displayed Message Description DENSITY COLOR Does not occur at user level (when this occurs, switch the printer to CALIBRATION ERROR Shipping mode. Refer to an applicable maintenance manual). DENSITY COLOR Does not occur at user level (when this occurs, switch the printer to SENSOR ERROR Shipping mode.
Page 57
Oki Data CONFIDENTIAL Displayed Message Description Indicates the tray 1 or 2 became empty of paper or is removed, and tttttt EMPTY warns of it until printing is instructed; or Displayed when no paper was found in the multipurpose tray after...
Oki Data CONFIDENTIAL 3.1.3 Printing on Printer Equipped with Controller Menu Map Printing Printer program versions and controller block configuration, and the other printer configurations and settings are printed. Operation: (Pressing of Switches) “MENU+” → “ENTER” → “ENTER” Demo Printing Demo patterns for destinations stored in ROM are printed.
Oki Data CONFIDENTIAL Adjustments after Parts Replacement Adjustments required after parts replacement are described below. The adjustment and correction of color registration must be performed without exception. Replaced Part Adjustment LED Head Not required. Image Drum Cartridge Not required.
Oki Data CONFIDENTIAL 3.2.2 EEPROM Replacement after ARC Board / OWL Board Replacement When ARC board / OWL board replacement, data in user-used board EEPROM is to be copied onto new boards (to allow new boards to inherit user-defined information and font installation information).
Oki Data CONFIDENTIAL Print Density Adjustment Auto Density Adjustment mode is set to [AUTO] at printer shipment, which may cause print density to be out of its appropriate balance during printer operation. In such cases, the density is to be adjusted.
Oki Data CONFIDENTIAL Print Density Adjustment (Calibration Chip) Print Density Input to Print Density Detection Calibration Chip 1. Each PU is to be programmed with a calibration target correction value (the last two characters of barcode information, about which see the illustration shown below) that is a shutter label marking.
Oki Data CONFIDENTIAL REGULAR MAINTENANCE Parts Replaced Regularly Users are recommended to replace parts periodically according to the table below. (Print quality cannot be assured and damages may occur, when the parts are not replaced.) Part Name Time of Replacement...
Oki Data CONFIDENTIAL TROUBLESHOOTING PROCEDURES Precautions before troubleshooting Confirm the basic inspection items described in the user manual. Obtain as much information regarding the problem from the user as possible. Check the printer in a condition close to that upon generating the problem.
Oki Data CONFIDENTIAL Preparing for Troubleshooting Operator panel display Problems that occur with the printer are indicated in the LCD. Apply proper remedies according to the message indicated in the LCD. Troubleshooting Procedure Confirm the problem in the following method when the printer generates a problem.
Oki Data CONFIDENTIAL 5.5.1 LCD message list When the printer detects a non-recoverable error, the following service call error is displayed in the LCD. Service call nnn: error Note: nnn is an error code. When [Service call] is displayed, error information that corresponds to the error code appears in the bottom line in the LCD.
Page 67
Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarm (2/5) Code Ready Attention Description Display on Operator Panel REPLACE TONER Blinks Indicates waste toner of the color marked with an asterisk (*) nnn:* WASTE TONER FULL light is full. (No indicated the Black toner)
Page 68
Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarm (3/5) Code Ready Attention Description Display on Operator Panel OPEN TOP COVER Blinks Indicates a paper jam occurred in the paper path. nnn:PAPER JAM light Transport Exit Duplex Entry OPEN DUPLEX COVER Blinks Indicates a paper jam occurred at about the duplex unit.
Page 69
Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarm (4/5) Code Ready Attention Description Display on Operator Panel CLOSE COVER Blinks Indicates the cover is open. nnn:COVER OPEN light FRONT (The sensor cannot identify the upper cover or the front cover. 310 and 311 toggle display appears while either of the covers, or both are open.)
Page 70
Oki Data CONFIDENTIAL Table 5-1-1 Operator Alarm (5/5) Code Ready Attention Description Display on Operator Panel POWER OFF/ON AND WAIT FOR A Blinks (See the list of service calls) WHILE light nnn:CONDENSING ERROR POWER OFF/ON Blinks (See the list of service calls)
Oki Data CONFIDENTIAL 5.5.2 Preparing for troubleshooting Operator panel display Problems that are generated in this device are indicated in the LCD. Apply proper measures according to the message displayed in the LCD. Problem Flow Chart No. Printer Malfunction after Turn-on.
Page 72
Oki Data CONFIDENTIAL 1 The printer does not operate properly after it is turned on. • Turn the printer off and on again. • Does appear (for about one second)? • Is the AC cable connected properly? NO Connect the AC cable properly.
Oki Data CONFIDENTIAL 2-1 Paper Loading Jam (1st tray) • Does a paper loading jam occur immediately after the printer is turned on? • YES Is paper jammed at the entrance sensor 1 or the entrance sensor 2? YES Remove the jammed paper.
Oki Data CONFIDENTIAL 2-2 Paper Loading Jam (Multipurpose tray) • Does a paper loading jam occur immediately after the printer is turned on? • YES Is paper jammed at the entrance sensor 1 or the entrance sensor 2? YES Remove the jammed paper.
Oki Data CONFIDENTIAL 2-3 Paper Feed Jam • Does the printer have a paperfeed jam immediately after it is turned on? • YES Is paper jammed at the write sensor? YES Remove the jammed paper. • Does the write sensor lever move properly? NO Replace the lever.
Oki Data CONFIDENTIAL 2-4 Paper Exit Jam • Does a paper exit jam occur immediately following the printer is turned on? • YES Is paper jammed at the exit sensor? YES Remove the jammed paper. • Does the paper exit sensor lever move properly? NO Replace the lever.
Oki Data CONFIDENTIAL 2-5 Duplex Print Jam • Does a paperfeed jam occur at the instant following the printer is turned on? • YES Does paper exist in the duplex unit? YES Remove the jammed paper. • Do the duplex-in sensor, rear sensor and front sensor levers move properly? NO Replace problem sensor lever(s).
Oki Data CONFIDENTIAL 3 Paper Size Error • Is proper size paper being used? Use proper size paper. • Is paper jammed at the entrance sensor 2? YES Remove the jammed paper. • Does the lever of the entrance sensor 2 move properly? Replace the lever.
Oki Data CONFIDENTIAL 4 Image Drum Unit (ID) Up/Down Operation Error • Power the printer off and, after a few seconds, on again. • Are all the ID drums properly revolving during printing? • Does the ID motor (C) have a rated resistance (approx. 3.5Ω)? NO Replace the ID motor(C).
Oki Data CONFIDENTIAL 5 Fuser Unit Error • Does a fuser unit error occur immediately after the printer is turned on? • YES Is the heat roller thermistor broken or short-circuited (see figure 5-1)? (approx. 190 k to 980 kΩ...
Oki Data CONFIDENTIAL 6 Motor Fan Error • Does the low voltage power supply fan run after the printer is turned on? • Is 24V being output to the POWER connector on the engine board (RSN PWB)? 24V: Pins 4, 5 and 6 NO Replace the low voltage power unit after checking cable connection.
Oki Data CONFIDENTIAL 5.5.3 Image Problem Troubleshooting When printout images are not satisfactory as illustrated below, follow the troubleshooting steps listed below. Abnormal Image Flowchart No. Light or faded image, or color misalignment, on whole page (Figure 5.2- A ) Dirty background (Figure 5.2- B )
Page 83
Oki Data CONFIDENTIAL Light or faded image, or color misalignment, on whole page (Fig 5-2 A ) • Is toner running short (Is TONER LOW displayed)? YES Supply toner. • Is proper paper being used? Use proper paper. •...
Page 84
Oki Data CONFIDENTIAL 2 Dirty background (Fig. 5-2 B ) • Were the image drums exposed to external light for a long time? YES Replace exposed image drum unit(s). • Are the rollers of the fuser unit dirty? YES Replace the fuser unit.
Page 85
Oki Data CONFIDENTIAL Blank page (Fig 5-2 C ) • Are the LED head assys connected to the CU board (ARC PWB / OWL PWB) properly? Check the cable connection between not properly connected LED assy(s) and CU board (ARC PWB / OWL PWB), and connect them correctly.
Page 86
Oki Data CONFIDENTIAL Vertical belt or line (black or color) (Fig. 5-2 D ) • Connect not properly connected LED head assy(s) to the CU board correctly. Connect the LED head assembly to the connection board properly. • Is the pin connection of the image drum unit(s) to the contact assy proper (see figure 5-3)? Connect not properly connected pin(s) to the contact assy correctly.
Page 87
Oki Data CONFIDENTIAL Vertical belt or line (white or uneven-color) (Fig. 5-2 F ) • Are the LED heads dirty? YES Clean dirty LED head(s). • Are the image drum pins connected to the contact assy properly (see figure 5-3 D)? Connect not properly connected pin(s) to the contact assy correctly.
Page 88
Oki Data CONFIDENTIAL Poor fusing (Ink spreads or peels when touched lightly with fingers.) • Is proper paper being used? Use proper paper. • Are the contact of the fuser unit connected properly? Connect the contact of the fuser unit properly.
Page 89
Oki Data CONFIDENTIAL Defective image of regular interval (Figure 5.2- E ) Interval Problem Troubleshooting 94.2 mm Image Drum Replace the image drum unit. 50.24 mm Developing Roller Replace the image drum unit. 47.10 mm Toner Supply Roller Replace the image drum unit.
Page 90
Oki Data CONFIDENTIAL Missing image • Are the LED heads dirty? YES Clean dirty LED head(s). • Are the LED head assys connected to the CU board (ARC PWB / OWL PWB) properly? Check the connection cables between not properly connected LED head(s) and the CU board, and connect them correctly.
Page 91
Oki Data CONFIDENTIAL Color misalignment • “TONER LOW” is showing on the display. YES Supply toner. Has the problem been resolved? YES End. • Conduct a color registration test of Engine Maintenance mode. Procedure: Enter the self-diagnostic mode (level 1) of Engine maintenance mode.
Page 92
Oki Data CONFIDENTIAL • Is “NG CALIBRATION LEFT/RIGHT” displayed? • YES Is the color registration sensor cover dirty? YES: A malfunction of the sensor cover front surface cleaning operation of the cleaning blade placed on the back of the shutter occurred. Replace the shutter and the sensor cover to restore cleanability.
Page 93
Oki Data CONFIDENTIAL • [Is “YELLOW/MAGENTA/CYAN LEFT/RIGHT/HORIZONTAL” displayed? • YES Replace the belt unit. Has the problem been corrected? YES End. • Replace the image drum unit. Has the problem been resolved? YES End. • Are there any problems in the gear assys of the image drums, multipurpose tray, belt unit, belt motor etc.?
Page 94
Oki Data CONFIDENTIAL Color different from original one • Are the LED head lenses dirty? YES Clean dirty LED head lens(es). • Are the LED head assys connected to the connection board (ARC PWB / OWL PWB) properly? Check the cable connection between not properly connected LED assy(s) and the connection board, and connect them correctly.
Oki Data CONFIDENTIAL Fuse Checking When the following errors occur, that fuse on the high voltage board which is associated with each error is to be checked (see table 5-6). Table 5-6 Fuse Error Fuse Name Error Description Insert Point...
Unit Circuit Diagram Illustration Resistance Brawn Between pins 1 and 2: 3.5Ω Transport Belt Motor Between pins 3 and 4: 3.5Ω Yellow Blue Between pins 1 and 2: 6.0Ω Main Motor (Y) Between pins 3 and 4: 6.0Ω Between pins 1 and 2: 6.0Ω Main Motor (M) Between pins 3 and 4: 6.0Ω...
Page 98
Unit Circuit Diagram Illustration Resistance Between pins 1 and 2: 6.0Ω Main Motor (C) Between pins 3 and 4: 6.0Ω Between pins 1 and 2: 6.0Ω Main Motor (K) Between pins 3 and 4: 6.0Ω Between pins 1 and 2: 6.0Ω Fuser Motor Between pins 3 and 4: 6.0Ω...
Page 99
Unit Circuit Diagram Illustration Resistance Feeder Motor Between pins 1 and 2: 3.5Ω Between pins 3 and 4: 3.5Ω Between pins 1 and 2: 3.5Ω Duplex Motor Between pins 3 and 4: 3.5Ω Between pins 1 and 2: 3.5Ω 2nd tray Feeder Motor Between pins 3 and 4: 3.5Ω...
Page 100
Unit Circuit Diagram Illustration Resistance 1. Upper Roller Side 1 Upper roller Heater Between pins “a” and “b”: Between pins “c” and “d”: 363k Ω (at 25˚C) Between pins “e” and “f”: Open Thermostat1 Thermostat2 Thermistor Fuser Unit...
Oki Data CONFIDENTIAL Timing Charts Compatible mode a) Data receiving timing PARALLEL DATA (DATA BITs 1 to 8) 0.5 µs min. 0.5 µs min. 0.5 µs min. nStrobe 0.5 µs min. 0.5 µs max. BUSY 0 min. 0 min.
Oki Data CONFIDENTIAL Parallel I/F Signals Table 8-1 shows interface signal names and pin numbers. Table 8-1 Signals Pin No. Signal Name Signal Direction Functions →PR Nstrobe (HostClk) Pulse for reading data in at trailing edge. DATA 1 DATA 2 DATA 3 8-bit parallel data.
Oki Data CONFIDENTIAL Universal Serial Bus (USB) Interface Specifications USB Interface (1) Basic specifications Conforms to USB specification, revision 1.1. (2) Transmission mode Full speed (max. 12 Mbps + 0.25%) (3) Power Control Self-power device USB Interface Connector and Cable...
Oki Data CONFIDENTIAL APPENDIX B 2ND TRAY MAINTENANCE Parts Replacement (1) Unscrew the six screws 1 to remove the plate-top 2. (2) Remove the cover-side R 3. (3) Remove the connectors (at five places), then uninstall the board 4.
Oki Data CONFIDENTIAL Frame Assy- Hopping (1) Remove the PCB (see section 1.1). (2) Remove the three screws 1 to uninstall the hopping assy 2. (3) Unscrew the two screws 3 to remove the cover assy - front 4.
Oki Data CONFIDENTIAL PARTS LIST 141 / 42049001TH Rev.1...
Page 141
Oki Data CONFIDENTIAL Recommended Q’ty/Year Parts No. Name Q’ty Remarks /Unit 1000 2000 42158504 Second Tray Unit Packed in box. 42158501 Second Tray Unit (ODS) Packed in box. 42158502 Second Tray Unit (OEL) Packed in box. 42158503 Second Tray Unit (AOS) Packed in box.
Oki Data CONFIDENTIAL Upper Assy / Rear Assy Remove the duplex unit (see section 2.2.20). Warping the upper assy 1, detach it. Warping the rear assy 2, detach it. 144 / 42049001TH Rev.1...
Oki Data CONFIDENTIAL Duplex Transport Assy Turn over the duplex transport assy. Unscrew the three screws 1 to remove the plate 2. Make connector removal and claw disengagement to remove the PCB-V7X 3. Disengage and remove the cover 4.
Need help?
Do you have a question about the C5100 and is the answer not in the manual?
Questions and answers