Epson stylus 3000 service manual

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The printer prints another Bi-D adjustment pattern. Press 0 to Bi-D OK correct the value. Page Sensor Check 4. ASF Length 5. In that case, check the connections between the sensors and the main control board. Page Cr-Pw Sensor Initialization 0. Press Enter; the Sensor Check menu appears. Page Asf Pw Sensor Adjustment 7. Place the paper width detector adjust tool with the A4 side out over the right and left edge guides and adjust the left edge guide to the left end of the tool, as shown in the figure below.

Then press Enter; the Sensor Check menu appears. Paper Tray Extension Out Figure Page Pg Adjustment 4. Select Return and press Enter; the main menu appears. Select END to exit the program. Feed Motor Pins 2 and 4 Repeat for Pins 3 and 4. Page See pages and Page Unit Level Troubleshooting Print quality is poor. The printer feeds paper abnormally.

Paper is jammed. Paper is fed abnormally. The top edge of loaded paper is improperly positioned. The control panel operates Buttons have no effect on the printer. Page CN2 on the corrected? Is the problem corrected? Check the motor and driver circuits. Refer to Section 5. Refer to Section 1. Check the ink cartridge sensor and release sensor. If they are defective, replace them. Page Is the problem corrected? Check the motors and Proceed to Section 5. If they are Printer Mechanism Repair.

Page Check the PF motor. If normal, replace the main control board. Is the problem Clean the PF roller and the corrected? Proceed to Section 5.

Page Connect the control panel properly. Replace the control panel. Replace the main control board. If problem operate at all. Replace the main board or PROM. Page Refer to the waveform Page CNPin 20, 21 or 22 Refer to waveform Fuse is blown.

Check the continuity of fuse F1 on Replace the main the main board. Check unit. The printhead is Check if signals are transferred to the Replace the printhead. Page Use the driver to clean the printhead at Replace the printhead.

Run a nozzle test after each cleaning. Page If not, replace the printhead and run the Self-test. Ink cartridge is Install a new cartridge and run the Replace the ink defective.

Because the user might cartridge. Page Symptom: The printer detects paper size incorrectly. Page Be careful not to damage any interior parts when cleaning inside the printer. When transporting the printer, be sure to remove the ink cartridges and lock the CR unit. The printer mechanism is not lubricated. Apply lubricants to the paper eject frame when replacing it. Refer to Chapter 1. Page Maintenance Figure Page Appendix Figure A Page Print page 1 Print document pages.

Rename the bookmark. Delete bookmark? Cancel Delete. Delete from my manuals? Sign In OR. Related products. DIY Do-It-Yourself manuals are made for homeowners and handymen who have mechanical abilities but can use a little training in repairing certain appliances. It is only to be used along with the service manual not as a replacement for it as it applies to the appliance type, not the specific model and will go into more details on repairing the appliance. Page Ink System 2.

Ink cartridge Pump mechanism Capping mechanism Waste ink drain pads Wiping mechanism Figure shows the block chart of the ink system. A Figure Page Pump Mechanism The pump mechanism, composed of the pump motor and pump unit, absorbs viscous ink in the printhead nozzles and drains it to the waste ink drain pad through the cap. Since this printer has only one pump, it uses the pump for both black and color inks by alternating the rotational direction of the pump motor.

Therefore the printheads must be capped to avoid increasing viscosity due to dried nozzles. When the printer power is off, it keeps the unit from shifting left to the printing side. The switch lever locks the at the right end by joining with the disengagement mechanism.

With this mechanism, the unit remains in the capping position while transported. Since the electrical circuit of this printer is in a secondary circuit, the delay timer can be used to allows the printer to execute the capping operation after the printer power is turned off.

This is to prevent ink clogging or smudging caused by the exposed condition of the printhead. Page 55 Operating Principles Figure illustrates the electrical circuit diagram. Page 56 Produces common voltage for printheads Drives motors. Monitors the printhead temperature. Page 57 Operating Principles Figure Control Circuit Block Diagram Rev.

Page Reset Circuits Page 59 See Table If the detected paper width does not match the width for the selected page size, the printer ignores the data which does not fit in the printable area of the paper. Page 60 REL : Output from the release sensor. Release sensor attached to the left and rear side of the printer mechanism determines whether the release lever is set to friction feed side or tractor side.

The signal on the friction feed side. While the CR is in the home position or the printer is in the ink cartridge replacement mode, the phase is driven in the low current hold mode to hold the motor. Figure shows the motor driver circuit block diagram. Each circuit has the common voltage driver circuit attached to the circuit control board, and the nozzle selector circuit attached to the printhead.

Page 64 Common driver circuit The common voltage printhead characteristics. At power on, the value is stored in the RAM. Page 65 The thermistor controls the common voltage by outputting the signals to compensate for changes in ink viscosity. Color Data Transmission Timing and the rank value are established to correspond to each of the color when the printer power is Rev. In the raster graphics mode which requires a high-resolution printing, however, forms 1 dot with a single ink ejection.

Page Ink System Management Micro Absorption Carriage Lock The printer also selects an ink sequence based on the printer condition by referring to the value for the timer counter IC that has a back-up lithium battery and timer counter stored in the has following counters Page Counters 1. Turn the printer on and remove the ink cartridges. Turn the printer off, and the printer starts ejecting ink from the printheads and tubes to the waste ink drain pads. After transportation, install the ink cartridges.

Page 69 3. Page Overview 3. Mishandling of this battery may lead to a short-circuit. Printer Disassembly Procedures Rev. Page Upper Housing Removal 1. Remove the knob, tip of the PG adjust 2. Using tweezers, release the hooks which fixes the tractor unit to the printer mechanism.

Then remove the tractor unit by lifting up the rear part of the tractor unit. Open the ink cartridge cover and release the hooks fixing the panel unit to the upper housing by inserting the tweezers into the cutouts in the illustrated part of the panel unit.

Page 74 Then remove the upper housing by pulling it forward. When replacing the upper housing or printer cover, be sure to remove the label such as CAUTION and put it to the same position on the replaced part. Page Rom Replacement Disassembly and Assembly 3. Remove the ROM. Remove the upper housing. See Section 3. Page Printhead Removal Disassembly and Assembly 3.

Note If any ink cartridge is installed, remove it to avoid ink leakage during disassembly and assembly. Disconnect the connector cable for the HP sensor from the sensor connector.

Page Printer Mechanism Unit Removal 3. Remove the printer mechanism unit. Page 83 Disassembly and Assembly Figure See Section 1. Remove upper housing. See section 3. Remove the main waste ink drain pads. Current value for the protect counter A is shown along with the ROM version number on the test print sheet 1st line on the top page printed in the default setting mode.

Disconnect the connector cable for the PL sensor from the CN11 on the main board assembly. Page Printer Mechanism Disassembly 3. Dismount the belt tension spring to loosen the timing belt. Page Pump Motor Assembly Removal 3. Remove the connector cable for the pump motor assembly securing the pump motor to the printer mechanism unit from the clump. Remove 2 screws CBS, 3x6 securing the pump motor assembly to the remove the pump motor assembly.

Page Pf Motor Assembly Removal 3. Remove the connector cable for the PF motor assembly from the clump attached to the printer mechanism unit. Then remove the PF motor assembly. Using tweezers, release 2 hooks securing the front and rear PE sensors to the rear paper guide assembly at the bottom of the printer mechanism unit.

Then remove the sensors. Disconnect the sensor connector cables from the sensor connectors. Using tweezers, release 1 hook securing the release sensor to the left frame unit. Then remove the release sensor. Release Sensor Removal Rev. Remove 4 screws CBS, 3X6 securing the paper eject frame unit to the printer mechanism unit. Remove the paper eject frame unit from the printer mechanism unit by releasing the joint with the CR unit.

When removing the paper eject frame unit, insert a piece of clean paper or equivalent between the platen surface in the paper eject frame unit and printheads in the CR unit to protect the printheads. Page Pump Unit Removal 1. Remove the paper eject frame unit. Then remove the pump unit.

Page Edge Guide Unit Removal 5. Remove 2 flange nuts M4 securing the edge guide unit to the left frame assembly and middle frame unit. Then remove the edge guide unit. When installing the edge guide unit to the printer mechanism unit, engage the rack on the edge guide unit with the pinion on the damper. Page 94 When installing the edge guide unit to the printer mechanism unit, engage the edge guide unit with the main bottom frame, as shown in Figure Be sure to fix the flange nuts with the specified adhesive.

See Chapter 6. Remove the edge guide unit. Remove 2 pan camera screws 4. After placing the printer mechanism unit back on the lower housing, connect the PW sensor connector cable to the PW sensor first. Remove the pump unit. Release 4 coupling screws M6 connecting each ink tube unit to the corresponding ink cartridge holder unit, then disconnect the 5.

Ink Cartridge Holder Removal Rev. Remove the ink cartridge holders. Page Cr Unit Removal Then remove the head cable guide and mounting plate, and remove the ink tubes from the printer mechanism.

Release the coupling screws connecting the ink tubes to 9. Turn the parallelism adjust bushings joining the CR guide shaft to the right and left frame assemblies and release the bushings.

Page Pay attention to the oil pad when removing the CR guide shaft from the CR unit, since it tends to dislocate.