Service Manual
Page 44
... Driver IC, CR Motor Driver IC driver elements, and so on . CN1 Photo-coupler Switching FET Transformer CN2 Diode Bridge Figure 2-2. C524 PSB/PSE/PSH Component PROM EEPROM DRAM Figure 2-1. C524MAIN Component Operating Principles Overview 44 EPSON FX-890/2190 2.1 Overview This printer is divided into several main components for easy removal and repair. The...
... Driver IC, CR Motor Driver IC driver elements, and so on . CN1 Photo-coupler Switching FET Transformer CN2 Diode Bridge Figure 2-2. C524 PSB/PSE/PSH Component PROM EEPROM DRAM Figure 2-1. C524MAIN Component Operating Principles Overview 44 EPSON FX-890/2190 2.1 Overview This printer is divided into several main components for easy removal and repair. The...
Service Manual
Page 46
... PE detector CR Guide Shaft PG Adjust Lever HP Detector Ribbon Unit Printhead Carriage Unit Timing Belt CR Motor Release Detector Figure 2-4. Printer Mechanism Outline 2.1.1.7 Sensors Table below lists the sensors of home (OUT): OPEN Mechanical contact 06~1.0 mA 5 VDC ± 5%... (Resistance load) There is paper: OPEN No paper: CLOSE Photo interrupter 5 VDC ± 5% (Resistance load) There is driven in one direction. The ribbon feed mechanism has the sun and planetary gear system. Table 2-1. EPSON FX-890/2190 Revision B 2.1.1.6 Ribbon Feed Mechanism The CR motor drives the...
... PE detector CR Guide Shaft PG Adjust Lever HP Detector Ribbon Unit Printhead Carriage Unit Timing Belt CR Motor Release Detector Figure 2-4. Printer Mechanism Outline 2.1.1.7 Sensors Table below lists the sensors of home (OUT): OPEN Mechanical contact 06~1.0 mA 5 VDC ± 5%... (Resistance load) There is paper: OPEN No paper: CLOSE Photo interrupter 5 VDC ± 5% (Resistance load) There is driven in one direction. The ribbon feed mechanism has the sun and planetary gear system. Table 2-1. EPSON FX-890/2190 Revision B 2.1.1.6 Ribbon Feed Mechanism The CR motor drives the...