Ribbon Advance Mechanism
The ribbon is held between the ribbon advance roller ribbon driven gear and the ribbon pressure roller. When the carriage moves from left to right and vice versa on the CR guide shaft, the timing belt turns the belt-driven pulley. Then the torque is transmitted to the ribbon driving gear through the gear trains. The ribbon driving gear rotates counterclockwise, no matter what direction the carriage moves, because a planetary gear is used in the gear linkage. Table 2-4. Ribbon Advance Gear...
Removing the Print Head Unit
1. Remove the housing. Refer to Section 4.2.1. 2. Rotate the flat gear 67.2 towards yourself front and release the carriage lock mechanism. Then move the carriage to the left edge. 3. Take both black and color ink cartridges out of the printhead unit. 4. Remove the blue covers for black and color ink cartridges from the carriage assembly. 5. Remove the torsion spring 49 and one screw No.3 and take the fastener head out. 6. Remove the FFC being placed on the carriage assembly, and remove the...
Board Removal
1. Remove Printer Mechanism. See Section 4.2.1.4 2. Remove all cables from C486 Main Board and peel off acetate tape in 2 places. 3. Remove 4 screws C.B.S 3x6 1, C.B.S 3x8 2, C.B.S 3x16 1 holding C486 Main Board, then remove Printer Mechanism from C486 Main Board in upward direction. The CN19 cable on the C486 Main Board has a specified installation direction. The pin connected to the blue line of the cable should be inserted into the Pin 1 side of the connector. Figure 4-16. CN19 Connection...
Print Paper Thickness Detection Pattern
Upper patterns Leftward Lower patterns Rightward Lower patterns Centered on base position for gap adjustment value, and displaced by an equal distance left and right. Details are described in next clause. Relationship between numbers in print pattern and paper thickness.
Fusing Temperature Control Circuit
The thermister TH1 detects the surface temperature of the fusing heat roller, and input analog voltage into IC201-78. According to the detected temperature, the heater lamp H1 is turned On or Off by the heater lamp On Off signal, which is input by IC201-55, and controls the temperature of the fusing part. The heater lamp is 450W. 3 different voltages are used according to the destination 100V, 120V and 230V. If the heat lamp is not turned off even when the thermister detects abnormally high...
Epson Stylus Photo R280 Error
Flashes at intervals of 1.25 seconds. Flashes as follows ON 0.5 sec. - OFF 0.5 sec. - ON 0.5 sec. - OFF 1.0 sec. Flashes at intervals of 0.5 seconds. Flashes at intervals of 1.25 seconds. Figure 3-2. Error Indication on EPSON Status Monitor 3 Figure 3-2. Error Indication on EPSON Status Monitor 3 NOTE The part number of the Ink Cartridges shown in the Status Monitor 3 screen differs by destination.
Board Component Layout
Figure 7-15. C305MAIN Component Layout The parts to which no reference number is assigned will not be available as after-sale service parts. The following pages show the circuit diagrams for the C305 Main Board. EPSON EPL-N2050 C305MAIN BOARD 2 of 3 EPSON EPL-N2050 C305MAIN BOARD 2 of 3
Printer Mechanism Operation
The printer mechanism is a 9-pin serial dot matrix impact mechanism. Figure 2-2 shows a drawing of the mechanism. The name in the rectangles indicate relationship between each mechanism and the control circuit on the PEGX board. Figure 2-2. Printer Mechanism Block Diagram Figure 2-2. Printer Mechanism Block Diagram The printer mechanism is composed of the following The printhead is an electromagnetic induction 9-pin serial dot head. Nine dot wires are driven individually to print a dot pattern...
Head Cleaning
In case abnormal printing occurs, you can enter the printhead cleaning mode through the control panel operation. Also, to keep the printer in the best condition, the printer automatically selects the cleaning level including flushing and carries it out even while printing. Follow the steps below to enter the printhead cleaning mode. 1. Press Pause button to put the printer into the off-line status. Pause LED goes off. 2. Clean the black or color printhead by pressing the corresponding Cleaning...
Interlock Switch and Cover Open Sensor Assembly Removal
Step 1 Remove the upper case. Refer to Section 3.2.3.4 Step 2 Disconnect the interlock switch cable and the cover open sensor cable from the junction board respectively. Figure 3-38. Interlock Switch Assembly Removal Figure 3-38. Interlock Switch Assembly Removal Step 3 Remove the CBB M4x10 screw securing the interlock switch assembly to the lower case. and remove it. Step 4 Remove the CBB M3x10 screw securing the cover open sensor to the upper case. and remove it. Figure 3-39. Interlock Switch...
Overview
This section describes the operating principles of the printer mechanism and electrical circuit boards. The Stylus PHOTO 895 785EPX has the following boards Power supply board C408 PSB PSE Monochrome panel board C408 PNL Printer panel board C408 PNL-B The printer mechanism for Stylus PHOTO 895 785EPX is designed newly. But, the basic component of the printer mechanism is same as previous product. This printer consists of Print Head, Carriage Mechanism, Paper Feeding Mechanism, Paper Loading...
Major Component Unit
Figure 7-1. Connection of the major components See the following tables for the connector summary of the Main Board and each connector's pin assignment. Table 7-1. Connector Summary for Main Board Table 7-1. Connector Summary for Main Board For connection with the CR Encoder Sensor and the CSIC Board. For connection with the Power Supply Board For connection with the USB interface The printer has a USB interface of the following specification. p.19 For connection with the Scanner Motor Table...
Power Supply Overview
Figure 2-14 shows a block diagram of the C204 PSB PSE board.
Paper Loading Mechanism
The Paper loading mechanism consists of the Change Lever in the Pump Unit, the Holder Shaft Unit including the Clutch mechanism and the ASF Unit. The Change Lever and the Clutch mechanism play a major role in the Paper loading mechanism as follows. 1. ASF home position detection function The ASF Unit on this printer does not have the ASF Home Position Sensor. Instead of the ASF Home Position Sensor, the Change Lever and the Clutch mechanism is used to detect the ASF home position. When the...
HopperRetard Roller Unit CAUTION
2 Lift up the Hopper toward the direction of the arrow, release the two tabs, and remove the spring and the hopper from the ASF Frame. 3 Remove Extension Spring 0.585 from both the ASF Frame and the Paper back Lever. 4 Remove the Paper Back Lever from the bearing of the ASF frame. 5 Remove Compression Spring 1.88 from the ASF Frame, and remove the Retard Roller Unit. Figure 4-8. Removing Retard Roller Unit Figure 4-8. Removing Retard Roller Unit When installing the Retard Roller or the Paper...
Capping Mechanism
The Capping mechanism covers the Print Head with the Cap to prevent the nozzle from increasing viscosity when the printer is in stand-by state or when the printer is off. The wiping operation is controlled by the Carriage Unit movement. This operation is usually performed with every CL sequence which is to absorb the ink from the ink cartridge, the ink cavity by the Pump unit. Following figure shows you the mechanism for the wiping operation. When the Carriage Unit is in the home position, the...
Disassembly And Assembly
This section describes procedures for disassembling the main components of the Stylus C63 64 83 84. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure. Things, if not strictly observed, that could result in injury or loss of life are described under the heading Warning. Precautions for any disassembly or assembly procedures are described under the heading CAUTION. Chips for disassembling procedures are described under the...
CAUTION Do not damage the rubber rollers when removing the Roller EJ Assy
Figure 2-45. Paper Guide, Front Roller EJ Assy. Removal 2 When installing the Paper Guide, Front to the Frame, Main Be careful not to damage the surface of the Roller PF Assy. Be careful not to damage the rib of the Paper Guide, Front or the Porous Pad, Paper Guide, Front. Check if the dowels and the tab of the Paper Guide, Front are correctly secured to the Frame, Main. Figure 2-47. Paper Guide, Front Installation Figure 2-47. Paper Guide, Front Installation Make sure that there is no gap...
Waste Ink Drain Pad Removal
Waste Ink Drain Pads must be replaced when the printer is under the following conditions The value for the protect counter A has reached the specified value 65,000 and the maintenance request error is indicated. The indicated value of the Protect counter is more than 52,000. In this case, be sure to replace them by agreement with your customer. The protect counter C has reached the specified value and the maintenance request error for the left ink pad is indicated. Refer to Section 1.4.11 and...
PF motor removal
1. Remove the Housing from the printer. Refer to Section 4.2.1. 2. Remove the Waste drain ink pad unit from the printer. Refer to Section 4.2.6. 3. Remove the Front frame and Paper eject roller. Refer to Section 4.2.10. 4. Remove the Plain washer and then remove the Combination gear 11.6, 36.8 Figure 4-41. Removing the Plain washer and Combination gear 11.6, 36.8 Figure 4-41. Removing the Plain washer and Combination gear 11.6, 36.8 5. Remove three nuts Hexagon Nut M3 securing the PF motor to...
Chapter Disassembly and Assembly 1
3.1.1 Precautions for 3.1.3 Small 3.1.4 Service Checks after 3.2 DISASSEMBLY AND ASSEMBLY_3-4 3.2.1 Removal ofthe Video Controller Section 3-4 3.2.1.1 Video Controller Board C108 MAIN Removal 3-4 3.2.1.2 PCL5 RITech Upgrade Board C82907 ROM-B Removal 3-5 3.2.1.3 Control Panel 3.2.2 Housing 3.2.2.1 Case 3.2.2.2 Rear Frame f. 3.2.3 Disassemblingthe 3.2.3.1 Engine Controller Board PWB-A Removal 3-8 3.2.3.2 Power Supply Unit PWB-E Removal 3-9 3.2.3.3 Interlock Switch 3.2.3.4 Printhead Unit 3.2.3.5...
Removing the Panel Board Assembly
1. Remove the printer cover and ribbon cartridge. Refer to Section 4.2.1. 2. Release the left clips for the panel board assembly by pushing them from the cutout located on side front of the upper housing assembly. 3. Release FFC flexible flat cable by pulling the lock cover for CN1, and then disconnect the FFC for CN1 and connector CN2 from the C165 PNL board assembly. 4. Remove the panel board assembly from the upper housing assembly. M Before disconnecting the FFC from CN1, slide the lock...
Panel Board
2 Disconnect the Panel Board Connector CN4 from the Main Board. See 4.3.2.1 Removing Main Board Step 3 3 Release the Panel Board from the two tabs and the notch of the Holder Shaft Unit. Figure 4-28. Routing Panel Board Connector Figure 4-28. Routing Panel Board Connector 2 Disconnect the Power Supply Cable CN2 from the Main Board. See 4.3.2.1 Removing Main Board Step 3 3 Remove the three screws that secure the PS Board Unit to the Main Unit, and remove the PS Board Unit. 4 Release the two tabs...
Levelness Adjustment of the Bin Unit
1. Remove the covers from the both legs of the 10-Bin Unit. 4. If the knob is turned counterclockwise, the 10-Bin Unit moves in the direction shown in the figure below. 3. Turn the knob attached to each leg of the unit to adjust its standing position. 5. After the standing position has been adjusted, tighten the wing bolts. 6. Reinstall the covers onto the legs of the 10-Bin Unit.
General Repair Information
This chapter describes the disassembly procedures to be used for replacing any of the main components of the FX-850 1 050. Required and helpful tools, measuring instruments, and lubricants listed in Tables 4-1 through 4-3. o Commercially available product E EPSON exclusive tool O Commercially available product E EPSON exclusive product Figure 4-1 shows some of the parts found on the FX-850 1050. Figure 4-1 shows some of the parts found on the FX-850 1050. DIP Switches Platen Knob Paper Release...
Sequential Repair Adjustment Program
This program is common for both Stylus Photo 890 and Stylus Photo 1290. NOTE In this section, Stylus Photo 890 program windows are used as examples. In this section, the sequential operations needs to be done are explained. This service program provides appropriate adjustment orders for repair, and the following adjustment items are included Carriage Unit Replacement Removal Printer Mechanism Replacement 1. Start the program and input all the required information on the initial window. Make...
Disassembling the Scanner Unit UpperFront Scanner Housing
Parts Components need to be removed in advance Document Cover ASF Cover Scanner Unit Following work should be performed in a room where there is a little dust. A clean room or a clean bench would be preferable. Do not scratch the Rod Lens Array when removing the CIS Assy. If the Hinge R or the Driven Pulley comes off during disassembling, reassemble them as shown in the figure below. Figure 4-104. Installing the Hinge R or the Driven Pulley Figure 4-104. Installing the Hinge R or the Driven...
Main Frame Assy
Parts Components need to be removed in advance Document Cover ASF Cover Scanner Unit Panel Unit Upper Housing Card Slot Cover Lower Housing Main Board Unit Left Frame Front Frame Right Frame CR Motor CR Scale Hopper B Main Frame Assy consists of the following parts. 1. Remove the Grounding Spring from the PF Motor. Refer to 4.5.11 PF Motor Step2 p119 2. Release one end of the Extension Spring from the hook of the Main Frame with longnose pliers, and then remove the spring together with the...
Disassembly and Assembly of CSF Bin
This section describes procedure for disassembling and assembling the operational cut sheet feeder. In general, you can install a component in the CSF simply by reversing the procedure for removing. Therefore, this section dose not describe assembly procedures in most cases. If necessary, special notes on assembling a component are given at the end of description of each procedure. 4.2.10.1 Disassembling the Right Side Block 1. Remove the CFS gear cover by pushing and releasing the 4 clips in...
Control Circuit Operation Overview
The printer CPU is an 8-bit CPU TMP90C041 running at 10 MHz. It oversees control of all the components of the printer. The E05A50 gate array contains various memory management functions that control the assignment of the memory and I O areas. Rationalization and simplification of the circuitry is achieved through use of the STK-6022B, which holds all the driver circuits for driving the PRINTER MECHANISM on a single chip. Figure 2-17 shows the control circuits in block diagram form. I 1...
Fuser Control
The fuser is heated by the heater lamp, which is powered by AC voltage. When the power supply board receives a FUSER LAMP signal from the engine controller board PWB-A , the power supply board PWB-E supplies the AC voltage to the heater lamp. This AC voltage is cut by the interlock switch when the case is open. The fuser temperature is detected by the thermistor. Based on the TH1 signals from the thermistor, the engine controller board PWB-A controls the fusing temperature 165 C, 329 F using...
Troubleshooting with LED Error Indications
This section describes how to troubleshoot the problem when the printer indicates an error at power on and can not print. The Stylus COLOR 880 can detect the following six errors and seven status, and indicates them with the LEDs, as shown below. Table 3-3. Error Indication of Operation Panel Table 3-3. Error Indication of Operation Panel
APG Unit
Parts Components need to be removed in advance Printer Cover Paper Support Assy Upper Housing 1. Remove the two screws taking care not to lose the gears, and remove the APG Unit. Screw C.B.S. M3x6 tightening torque 7-9 kgf.cm No.1 The numbers shown in the figure indicate the order of tightening the screws. 2. Remove the Combination Gear 10, 15.2 . Figure 4-56. Removing the Combination Gear 10, 15.2 Figure 4-56. Removing the Combination Gear 10, 15.2 Lubrication is required. See the page given...
MicroAdjustment TopofForm Set Function
After paper loading is completed, set the printer ON LINE by pressing the ON LINE switch. In this state, the paper loading position can be finely adjusted by operating the LF and FF switches. When the printer is in the micro adjustment mode, the ON LINE LED on the panel blinks. The paper loading position can be adjusted individually for the friction feed, tractor feed, and cut sheet feeder modes, and the adjusted values are stored in the memory. The value for the tractor feed remains valid even...
Adjustment Program Initial Setting menu
You have to input the following four items before entering the adjustment main menu. Select the required model name in the model Name list. You can sleet the Stylus COLOR 480SXU also in the latest adjustment program Ver. 2.0 Interface setting EPUSB1, EPUSB2, EPUSB3 Program type Individual service adjustment program or Sequential repair service program Follow the procedure below to input the initial settings. 1. When you run this program, the following menu appears. Select the Stylus COLOR 580...
Figure Head Driver Circuit for Stylus Color
SWCO SWC1 HLAT HNCHG HCLK IECLK HSI1 HSI2 HSI3 HSI4 HSI5 HSI6
Head ID Input Function
This function is designed to correct ink discharge amount variations due to individual manufacturing differences between Printheads when the Printhead is replaced. 1. Choose the Head ID of the adjustment program. 2. Enter the 25-digit code of the Head ID label applied to the Printhead. Enter the Head ID from left to right on the top row and from top to bottom in due order.
APG Unit removal
Figure 2-18. APG Unit removal Figure 2-18. APG Unit removal Parts Units which should be removed before removing APG Unit Paper Support Assy. Housing left right Housing frame ASF Unit Board, Main 1. Disconnect the APG motor connector cable from the connector CN13 of Main Board. 2. Remove the screw x1 for securing APG Unit, and remove the APG Unit carefully. When reassembling APG Unit, Make sure that the hooks x2 and the dowels x2 of APG Unit are securely attached to Frame, Main. Check if the...
Overview 1
This chapter describes procedures for disassembling the main components of the EPSON Stylus Photo 890 1280 1290. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure. Therefore, no assembly procedures are included in this chapter. Precautions for any disassembly or assembly procedure are described under the heading CAUTION and CHECK POINT. Any adjustments required after disassembling the units are described under the heading...
Disassembly And Assembly
3.1.3 Service Checks After 3.1.4 Screw 3.2 Disassembly and 3.2.1 Pre-disessembly 3.2.2 Removing the PANEL 3.2.3 Removing the 3.2.4 Removing the HOUSING ASSEMBLY, 3.2.5 Removing the PRINTER 3.2.5.1 Removing the PLATEN 3.2.5.2 Removing the FRAME ASSEMBLY, REAR 3-11 3.2.5.3 Removing the MOTOR ASSEMBLY, CR 3-12 3.2.5.4 Removing the MOTOR ASSEMBLY, PF 3-13 3.2.5.5 Disassembling the GEAR TRAIN, 3.2.5.6 Removing the CARRIAGE GUIDE ASSEMBLY 3-15 3.2.5.7 Removing the Ribbon Drive RD ASSEMBLY 3-17...
Electric Circuit
The electric circuit boards of Stylus CX3100 3200 are as follows C497MAIN Board main circuit board C497PSB C497PSE Board power supply circuit board This circuit board supplies the following voltages Table 2-1. Functions of Major Elements - C497MAIN Table 2-1. Functions of Major Elements - C497MAIN Built-in RAM 10kB, Built-in Flash ROM 256KB Control, image processing C90A20 64Mbit Flash ROM Stores firmware Panel sensor input and output control Storage of default setting and backup of various...
Table Repair of the CZC PSBIPSE Board
The printer does not operate at all. Feed back transistor Q2, Q3 are dead. Check the waveform at the drain of Q1.
Eeprom
IC17, IC18 for the pump motor and PF motor Head common driver hybrid ICs IC22, IC23 . PF Motor Driver CR Motor Driver PF Motor Driver CR Motor Driver Figure 1-13. C203 MAIN Board Component Layout Figure 1-13. C203 MAIN Board Component Layout C172 PSB PSE board, same as for Stylus COLOR 1500, consists of the transformer, switching FET, regulator IC on the secondary circuit, diode bridge, fuse, and so on. Figure 1-14. C172 PSB PSE Board Component Layout Figure 1-14. C172 PSB PSE Board Component...
Chapter Maintenance
6.1 PREVENTIVE 6.2 LUBRICATION AND ADHESIVE Figure 6-1. Correct Adhesive Figure 6-2. DFX-8000 Lubrication and Adhesive Diagram 1 6-4 Figure 6-3. DFX-8000 Lubrication and Adhesive Diagram 2 6-5 Figure 6-4. DFX-8000 Lubrication and Adhesive Diagram 3 6-6 Table 6-1. Lubricants and Table 6-2. Lubrication Table 6-3. Adhesive Application Proper maintenance is essential to maintain optimal printer performance for the longest possibly period and to minimize malfunction frequency. Preventive maintenance...
Troubleshooting for Motors and Sensors
Table 3-13. Motor Resistance and Check Point
Figure Fuser Control Circuit
The following figure shows the fuser temperature control procedure. The following figure shows the fuser temperature control procedure. Figure 2-20. Temperature forFuser Control Procedure Figure 2-20. Temperature forFuser Control Procedure If the following renditions are detected, the printer indicates a fuser error the LCD displays SERVICE REQ. E0003 . . The thermistor temperature does not reach 55 C 131 F within 15 seconds. . The warm-up period doesnotend within 120 seconds. The thermistor...
Appendix
A.1IC A.1.1 CPU LLPD781OHG A.1.2 Gate Array E05A15HA A.1.3 Gate Array E05A16GA A. 1.4 HM27256G-25 EP-ROM A-1 9 A.1.5 HM6264ALSP-12 CMOS ST-RAM A.1.6 NJM2355 A.1.7STK6722H4-Phases Stepper Motor Driver A-24 A.2 EXPLODED DIAGRAMS AND Figure A-1. ptPD7810 781 1 Pin Figure A-2. xPD781 0 781 1 Block Figure A-3. OP Code Fetch Figure A-4. Memory Read Figure A-5. Memory Write Figure A-6. GA E05A15HA Pin Diagram Figure A-7. GA E05A15HA Internal Block Diagram A-8 Figure A-8. GA E05A16GA Pin Diagram 3...
Paper Feed Mechanism
Figures 2-7, 2-8, and 2-9 show the paper feed mechanism. After the printer loads the paper, it is fed by the tension roller, platen roller, and front or rear tractor assembly. The PF motor rotates the tension roller and tractor select gear Figures 2-8 and 2-9 and moves either the front or rear tractor assembly. The rotation of the paper feed transmission gear rotates the tractor select gear, which can engage either tractor train. The tractor select mechanism alternates the engagement of the...
Control Panel Removal
1. Remove the Housing. SeeHousing Removal on page 72 2. Remove 2 screws securing the Control Panel, then remove the Control Panel from the Printer Mechanism. 3. Remove the screw securing the Left Housing Panel to the Printer Mechanism. 4. Remove 2 screws securing the Panel Board Assembly to the Printer Mechanism, then remove C209PNL Board from the Panel Assembly. 5. Remove FFC from the connector on the C209PNL Board. By removing the Control Panel, the Stacker Assembly can be also detached from...
Clean Head
When Head replacement is required on the service site, execute ink discharge InkBlowing in this mode beforehand. If transition in the sequence can not take place for some reason, the display shows Reset I C. When replacing the print head, execute ink discharge InkBlowing by using this function. Prepare seven draining cartridges, which are necessary for this work. Opener I C in the menu display must be understood as Draining Cartridge. In the flow as shown at right, upon completion of the first...