DIP Switch Settings

There are five DIP switches that are located at the front paper entrance of the printer. These DIP switches can set the printer defaults. When power is applied or the printer is reset, the DIP switch selections are treated as the default setup. If the setup is changed, the power should be cycled or the printer should be reset. Table 1-16 shows the DIP switch selections for this printer. Table 1-17. Character Table Setting (Standard) Table 1-17. Character Table Setting (Standard) Table 1-18....

Interlock Switch and Cover Open Sensor Assembly Removal

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...

Paper Feed Mechanism

Epson Pull Tractor Unit C12c800382

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...

C Main Board Unit Removal

Step 1 Remove the bottom panel assembly. Refer to Section 3.2.4.1 Step 2 Remove the C204 SUB board unit Refer to Section 3.2.4.3. Step 3 Remove the C204 DRV-B board and C204 DRV board units Refer to Section 3.2.4.4. Step 4 Disconnect connectors CN6, CN7, CN8, and CN10. Figure 3-31. C204 MAIN Board Removal 1 4 Figure 3-31. C204 MAIN Board Removal 1 4 Figure 3-32. C204 MAIN Board Removal 2 4 Figure 3-32. C204 MAIN Board Removal 2 4 Figure 3-33. C204 MAIN Board Removal 3 4 Figure 3-33. C204 MAIN...

Figure Sensor Circuit Block Diagram

Detection form Photo interrupter Output form Open collector pulled up to 10 K ohms resistor Logical Paper present LOW Top paper end sensor to detect the TOF position Detection form Output form Logical Photo reflector Open collector Paper present LOW Paper out HIGH Rectangle wave 1 channel, TTL level Paper feed Level changes continuously. The magnetic transistor is attached to the tension roller on the paper tension unit. Detection form Micro mechanical switch Logical Front tractor LOW closed...

Platen Gap Adjustment Mechanism

Axial Rotational Adjustment Mechanism

Figure 2-6 shows the platen gap adjustment mechanism. The front and rear carriage guide shafts supporting the carriage have a vertical section. The rotation of the PG motor is transmitted to the rear carriage guide shaft through the gears. Counterclockwise rotation of the motor expands the platen gap and clockwise rotation reduces it. The encoder plate with equally pitched slits is attached coaxially to the motor axis. When the motor rotates, the PC sensor detects it and outputs the pulses....

MI Printer Mechanism

Sensor Encoder Dfx 8500

The M-3I60 printer mechanism is a 18-pin 9-pin two lows , serial impact dot matrix printer mechanism developed for the DFX-8500. It is designed to provide high-speed, high-volume printing, and is especially heavy and durable when compared with existing terminal printer mechanisms, Its paper feeding mechanism uses several kinds of fan-fold paper, and an automatic mechanism is included to provide enhanced paper handling. The structural differences between the DFX-8500 and the DFX-8000 are...

Figure CR Motor Drive Circuit Block Diagram

Motor Epson 1050

Stepping motor driver STK6713BMK4 IC2 drives the PF motor. Figure 2-22 shows the PF motor drive circuit block diagram, and Table 2-9 provides the PF motor specifications. 37 VDC applied to the drive circuit 4274 pps normal mode,, constant driving 9.9 ips 2610 pps middle speed mode,, constant driving 6 ips Driving 1.75 A, 0.20 A per phase average Holding 0.26 A, 0. 2 A per phase average The motor pulse switching signals are transmitted from CPU ports PG00 to PG03. The PF motor is controlled...

Main Control Board C Main Board

Epson Stylus Photo R300 Control Panel

The C204 MAIN board is a main controller board. The board contains following ICs There are two types of C204 MAIN board used as after service parts. The following Table shows differences between them. Serial I F Hexagonal-head screw type The C204 DRV board is the driver board specially for the printer mechanism. The printhead, printhead fan, plunger, PF paper feed motor, CR carriage motor, CR fan, PG platen gap motor, and RF ribbon feed motor drive circuits are located on the driver boards....

C DRVB and C Drv Board Units Removal

Board Epson 1170

Step 1 Remove the bottom panel assembly. Refer to Section 3.2.4.1 Step 2 Disconnect connector CN3 and cable connector CN14 for the C204 DRV board. Step 3 Disconnect connectors CN1 and CN2 on the C204 DRV-B board. C204 MAIN board Cable from C204 MAIN board Figure 3-29. C204 DRV DRV-B Boards Removal C204 MAIN board Cable from C204 MAIN board Figure 3-29. C204 DRV DRV-B Boards Removal Step 4 Remove the eight CBS M3x8 screws securing the C204 DRV-B board and C204 DRV board via shielding plate...

Printer Mechanism Operation

Motor Epson R220

This section describes the Model 3I60 printer mechanism and explains how the printer works. The Model 3I60 printer mechanism features a 18-pin, impact dot printhead for serial printing. The printer mechanism is the main component of the printer and is supported by the other components the power supply and control circuits . Figure 2-1 shows the Model 3I60 printer mechanism. Figure 2-1. M-3I60 Printer Mechanism Figure 2-1. M-3I60 Printer Mechanism The printer mechanism consists of the following...

Chapter Maintenence

6.1 PREVENTIVE 6.2 LUBRICATION AND ADHESIVE To keep the printer in good condition, regularly clean the case exterior using denatured alcohol and vacuum the mechanism's interior to remove dust and paper debris. After cleaning the printer, check that it is adequately lubricated, as described in Section 6.2, below. Before returning the printer to the customer, inspect the springs and paper feed rollers and check that the printer operates properly. Disconnect the printer from the external AC power...

Tractor select mechanism

Epson 300 Gear Motor

Figure 2-12 shows the operation of the tractor select mechanism. Clockwise rotation of the RF motor is transmitted to the tractor select cam through the ribbon feed select gear and tractor select transmission gear, and rotates the tractor select cam clockwise. The tractor select lever contacts the inside curve of the cam due to the spring force when the cam rotates, the tractor select lever moves horizontally along the curve. When the tractor select lever is set to the left, the tractor select...

Chapter Adjustment

Motor Shaft Sprocket Epson Artisan 800

4.1 PRINTER MECHANISM 4.1.1 PG Motor Backlash 4.1.2 Carriage Timing Belt Tension 4.1.3 Tractor Wire Spring Tension 4.1.4 Pull Tractor Sensor Position 4-4 4.1.5 Carriage Guide Shaft Parallelism 4.1.6 Platen Angle 4.1.7 Platen Gap Motor Value 4.1.8 Measurement Seeking and Bi-directional Printing This section describes the printer mechanism adjustments for the DFX-8500. Whenever the printer is disassembled and the printer parts mentioned in this section are replaced or repaired, perform the...

Functions

Changes the front and rear paper path alternately. Normal paper is set and the pull tractor is not used The printer feeds the paper to the tear off position and cut the paper by the cutter, and feeds backward to paper park position. If the cutter is not used, it goes incomplete changing paper error. So cut the paper at the top of paper and push Pause switch or Front Rear switch, and the printer feeds the paper backward. After the paper is out, the printer loads the paper from another path's...

Assembling Point

Assembling Point

When you install the ribbon feed change lever unit, join the tip of the tractor select lever and the tractor select gear holder correctly. Refer to Figure 2-12. 3.2.6.3 Tractor Select Lever Upper and Lower Assembly Disassembly This section describes how to disassemble the tractor select lever assembly, including how to remove the ribbon feed motor and tractor select sensor. Step 1 Remove the ribbon feed change lever unit. Refer to Section 3.2.6.2. Step 2 Remove the two CP S-P1 M3x6 screws, leaf...

Chapter Troubleshooting

Flowchart Seleksi Siswa Baru

The information in this chapter makes troubleshooting easier to perform by listing various problems that can occur and providing possible solutions. Note For this printer, no special tools are necessary for troubleshooting to the unit level, with the exception of a digital multi-meter. Some component-level troubleshooting may require an oscilloscope. The DFX-8500 indicates errors using beeps. Table 5-1 lists fatal errors. The isolation resistance in the CR...

Pull Tractor sensor

Epson Dfx 5000 Surface The Platen

Pull Tractor Sensor Position Adjustment 4.1.5 Carriage Guide Shaft Parallelism Adjustment The rear carriage guide shaft must be parallel to the platen. If it is not, printing may be abnormal because paper is not fed evenly at the left and right sides of the platen. A paper jam may occur. This adjustment is required when the rear carriage guide shaft is removed during carriage mechanism disassembly, the parallelism adjust lever is moved, or the platen is removed. Do not remove the...

Schema Mainboard Epson Lq 2180

Encb Switches

A.1 CONNECTOR PIN A.2 CIRCUIT A.3 COMPONENT A.4 CONNECTOR JUNCTION BOARD A.5 PART A.6 EXPLODED Figure A-1 illustrates the interconnection of the primary components. Table A-1 summarize the description and sizes of the connectors. gt C204 MAIN CN7 and C204 DRV CN3 boards Table A-3. C204 MAIN Board Connector CN2 Table A-3. C204 MAIN Board Connector CN2 Table A-4. C204 MAIN Board Connector CN3 Table A-6. C204 MAIN Board Connector CN5 Table A-7. C204 MAIN Board Connector CN6 Table A-8. C204 MAIN...