Technical Brief (Impact Printers)
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...-four pin printers all EPSON impact printers: Functionality M Printing technology M Control code/emulation M Paper handling M SmartPark™ settings Versatility M Flexible interfacing M Built-in their respective owners. Reliability - Impact printers are renowned for their reliability with LQ FX-980-Nine-pin narrow carriage Wide carriage printers have 4 number in their names Narrow carriage printers have the sturdiest printhead pins...
...-four pin printers all EPSON impact printers: Functionality M Printing technology M Control code/emulation M Paper handling M SmartPark™ settings Versatility M Flexible interfacing M Built-in their respective owners. Reliability - Impact printers are renowned for their reliability with LQ FX-980-Nine-pin narrow carriage Wide carriage printers have 4 number in their names Narrow carriage printers have the sturdiest printhead pins...
Service Manual
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... Initialization 18 Main Components 19 C273 Main Board 20 Operating Principles Printer Mechanism Operations 22 Power Supply Operation 22 Control Circuit 23 Overview of Control Circuit Operation 23 System Reset Circuit 25 Printhead Driver Circuit 26 CR Motor Driver Circuit 27 PF Motor Driver ...Program 34 Bi-D Adjustment 36 TPE Level Reset 37 Writing the User-characteristic Data 38 Troubleshooting Overview ...41 Troubleshooting Information 41 Printhead ...41 Sensors ...41 Motors ...41 The Error codes with Indicators and Buzzer 41 Unit Level Troubleshooting 42 Repairing the C166 PSB...
... Initialization 18 Main Components 19 C273 Main Board 20 Operating Principles Printer Mechanism Operations 22 Power Supply Operation 22 Control Circuit 23 Overview of Control Circuit Operation 23 System Reset Circuit 25 Printhead Driver Circuit 26 CR Motor Driver Circuit 27 PF Motor Driver ...Program 34 Bi-D Adjustment 36 TPE Level Reset 37 Writing the User-characteristic Data 38 Troubleshooting Overview ...41 Troubleshooting Information 41 Printhead ...41 Sensors ...41 Motors ...41 The Error codes with Indicators and Buzzer 41 Unit Level Troubleshooting 42 Repairing the C166 PSB...
Service Manual
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Items Included with the Printer Enclosed Items Quantity User's manual 1 Driver diskette 1 Ribbon cartridge 1 Power supply cable (230 V Version) 1 Table 1-2. Product Description Specifications 8 LQ-2080 Revision A 1.1 Specifications The LQ-2080 is limited to the items that are specific to the ...LQ: 100 cps at 10 cpi Character tables: Standard version: 13 tables NLSP version: 38 tables Input data buffer: 0 Kbyte or 64 Kbyte (depend on the default setting) Acoustic noise: 50 dB (A) (ISO 7779 pattern) Reliability: MVBF *: MTBF: 19 million lines (except printhead...
Items Included with the Printer Enclosed Items Quantity User's manual 1 Driver diskette 1 Ribbon cartridge 1 Power supply cable (230 V Version) 1 Table 1-2. Product Description Specifications 8 LQ-2080 Revision A 1.1 Specifications The LQ-2080 is limited to the items that are specific to the ...LQ: 100 cps at 10 cpi Character tables: Standard version: 13 tables NLSP version: 38 tables Input data buffer: 0 Kbyte or 64 Kbyte (depend on the default setting) Acoustic noise: 50 dB (A) (ISO 7779 pattern) Reliability: MVBF *: MTBF: 19 million lines (except printhead...
Service Manual
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LQ-2080 1.2.4 Paper Specifications Cut Sheet ... inch 200 mm 3.9 inch 100 mm 7.8 inch 200 mm 1.2.5 Ribbon Specificatio Ribbon life: Approximately 8 million characters (LQ 10 cpi, 48 dots / character) Revision A 1.2.6 Electrical Specifications 120 V Version Input voltage range: AC 99 to 132 V Rated current: ...(ISO/IEC10561 Letter pattern) Energy Star Compliant 1.2.7 Environtal Conditions See the LQ-2070 Service Manual. 1.2.8 Reliability MVBF *: MTBF: Printhead life: 19 million lines (except printhead) 10000 POH 200 million strokes/wire *: Mean print volume between failure Product...
LQ-2080 1.2.4 Paper Specifications Cut Sheet ... inch 200 mm 3.9 inch 100 mm 7.8 inch 200 mm 1.2.5 Ribbon Specificatio Ribbon life: Approximately 8 million characters (LQ 10 cpi, 48 dots / character) Revision A 1.2.6 Electrical Specifications 120 V Version Input voltage range: AC 99 to 132 V Rated current: ...(ISO/IEC10561 Letter pattern) Energy Star Compliant 1.2.7 Environtal Conditions See the LQ-2070 Service Manual. 1.2.8 Reliability MVBF *: MTBF: Printhead life: 19 million lines (except printhead) 10000 POH 200 million strokes/wire *: Mean print volume between failure Product...
Service Manual
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...the PF motor. Data sent from the host computer to the printhead. Operating Principles Control Circuit 24 Loads this image data to the image buffer in RAM (under interrupt IC 4 processing control). Figure 2-2. LQ-2080 Revision A The following figure shows the data flow from the host... computer is converted to image data and transmitted to the printhead through the gate array. IC 8 The RAM contains the CPU working area...
...the PF motor. Data sent from the host computer to the printhead. Operating Principles Control Circuit 24 Loads this image data to the image buffer in RAM (under interrupt IC 4 processing control). Figure 2-2. LQ-2080 Revision A The following figure shows the data flow from the host... computer is converted to image data and transmitted to the printhead through the gate array. IC 8 The RAM contains the CPU working area...
Service Manual
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... digital value and decides the printhead driver pulse width, and then transports the data to protect the printhead. Printhead Drive Circuit Control Circuit 26 Based on the monitored voltage, the CPU decides the printing interval. Port 73 monitors the printhead temperature to the gate array via... CPU port 15. Revision A Operating Principles Figure 2-5. Based on this standard voltage, the A/D converter in ZD1 and input to determine the printhead driver pulse width. If the temperature exceeds 95° C (213° F), printing is made in the CPU operates. Port 74 monitors...
... digital value and decides the printhead driver pulse width, and then transports the data to protect the printhead. Printhead Drive Circuit Control Circuit 26 Based on the monitored voltage, the CPU decides the printing interval. Port 73 monitors the printhead temperature to the gate array via... CPU port 15. Revision A Operating Principles Figure 2-5. Based on this standard voltage, the A/D converter in ZD1 and input to determine the printhead driver pulse width. If the temperature exceeds 95° C (213° F), printing is made in the CPU operates. Port 74 monitors...
Service Manual
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...sensor detects that paper has been loaded when the photo diode rays are cut off by the printhead. Sensor Circuit Operating Principles Control Circuit 30 The HP sensor detects CR home position when the ... diode rays are cut off by comparing the measured voltage with standard voltage, which is included in this printer. Two types of sensors are monitored to set the pulse length of the following sensors: home position (...which was measured during the power on sequence. Figure 2-9. LQ-2080 Revision A 2.3.6 Sensor Circuits The CPU detects conditions of the head driver signal.
...sensor detects that paper has been loaded when the photo diode rays are cut off by the printhead. Sensor Circuit Operating Principles Control Circuit 30 The HP sensor detects CR home position when the ... diode rays are cut off by comparing the measured voltage with standard voltage, which is included in this printer. Two types of sensors are monitored to set the pulse length of the following sensors: home position (...which was measured during the power on sequence. Figure 2-9. LQ-2080 Revision A 2.3.6 Sensor Circuits The CPU detects conditions of the head driver signal.
Service Manual
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...--- --- Error Code Indicated by the LEDs Table 5-1. Fatal error Blink Blink Blink Blink Font ------- LQ-2080 Revision A 5.1 Overview This chapter contains information necessary for replaceable units. 5.2.1 Printhead The information in this section is approx. 100 ms. Troubleshooting Overview 41 Paper eject warning On Blink ...and interval is approx. 100 ms. (-): Beeper sounds approx.500 ms and interval is the same as for the LQ-2070 except for the point below: Point: Table 5-1 (LQ-2070 Service Manual) Meter Reading 39.3 ± 10% Ω → 29.6 ± 10% Ω...
...--- --- Error Code Indicated by the LEDs Table 5-1. Fatal error Blink Blink Blink Blink Font ------- LQ-2080 Revision A 5.1 Overview This chapter contains information necessary for replaceable units. 5.2.1 Printhead The information in this section is approx. 100 ms. Troubleshooting Overview 41 Paper eject warning On Blink ...and interval is approx. 100 ms. (-): Beeper sounds approx.500 ms and interval is the same as for the LQ-2070 except for the point below: Point: Table 5-1 (LQ-2070 Service Manual) Meter Reading 39.3 ± 10% Ω → 29.6 ± 10% Ω...