What to do if my Epson 680Pro - LQ B/W Dot-matrix Printer shows a fatal error indication?
If your Epson printer displays a fatal error, first, ensure that the HP and PE sensor levers move smoothly. If the issue persists, the HP/PE sensor, CR motor, PF motor, or main board may be defective and require replacement. Also, make sure the printer housing is secured with screws on the printer mechanism.
What to do if my Epson 680Pro - LQ B/W Dot-matrix Printer has a paper jam error?
If your Epson printer indicates a paper jam error, first, remove the jammed paper. Then, ensure the Star wheel assembly is completely assembled in the Paper eject frame. Check that the Spur gear 15 is correctly set. Also, verify that the paper guide front is correctly assembled or replace it if damaged. Finally, make sure the PE detection lever moves smoothly.
Why is the print quality not good on my Epson 680Pro - LQ B/W Dot-matrix?
If your Epson printer is experiencing poor print quality, including vertical or horizontal banding, blurred prints, or ink stains, several factors could be responsible. The CR motor's accuracy might be compromised, necessitating replacement. Insufficient lubrication around the CR unit can also contribute, so apply lubricant. Ensure the I/C is securely held in the CR unit. A deformed Paper eject frame should be replaced. Clean any foreign material from around the printhead, and verify and adjust paper feed accuracy. Also, ensure that the printer driver settings are correctly configured and clean the paper path if there are any ink stains.
How to fix a paper out error on my Epson Printer?
If your Epson printer shows a 'paper out' error, it might be due to several reasons. The LD roller's friction could be reduced due to paper dust, so cleaning the LD roller is recommended. Alternatively, the clutch mechanism might be broken, requiring replacement. Ensure the tension spring 0.143 and compression spring 0.98 are correctly set in the clutch mechanism. Also, check for any damage to the tip of the Change lever and replace it if necessary. Finally, the PF motor could be broken, requiring replacement.
What to do if the Epson 680Pro - LQ B/W Dot-matrix Printer has missing dots?
If you're experiencing missing dots on your Epson printer that aren't resolved by cleaning, it could be due to several reasons. The pump unit may not be absorbing ink from the printhead, requiring its replacement. The cap unit might not be sticking completely to the printhead's surface, also requiring replacement. The printhead itself could be broken and need replacing. Check the head FFC for any damage and replace if necessary. Lastly, the main board could be defective, necessitating replacement.
Explains DANGER and WARNING notations for personal injury and equipment damage.
Lists the major features of the EPSON Stylus Color 680/777/777i printers.
Details the physical, printing, electrical, and environmental specifications of the printers.
Describes the USB and parallel interface capabilities and protocols used by the printer.
Explains the printer's control panel, switches, and LED indicators.
Covers paper specifications, handling, and printing areas for various paper types.
Gives an overview of the printer's mechanism and electrical boards.
Explains the printhead technology, components, and printing process.
Describes the movement and detection of the carriage unit.
Explains how the paper is fed through the printer.
Details the printer's electrical boards and their functions.
Introduces troubleshooting levels and explains motor/sensor checks.
Details how to troubleshoot errors indicated by LED lights and symptoms.
Provides an overview of disassembly procedures and related precautions.
Step-by-step procedures for disassembling individual printer units.
Overview of adjustments needed for printer operation and quality.
Lists necessary adjustments based on replaced printer parts.
Procedure for inputting the Head ID after printhead or main board replacement.
Corrects printing position differences in bidirectional printing.
Forcibly cleans clogged nozzles to resolve printing issues.
Allows checking and clearing the waste ink counter.
Information on maintaining the printer's optimum condition.
Actions to clear print irregularities and maintenance errors.
Summary of major component units and their connector pin alignments.
Exploded diagrams illustrating printer components.
List of printer parts with their corresponding codes.
General| Print Method | Impact dot matrix |
|---|---|
| Resolution | 360 x 360 dpi |
| Connectivity | Parallel |
| Paper Handling | cut sheet |
| Noise Level | Approx. 55 dB (A) |
| Paper Width | 4 to 10 inches |
| Operating Systems | Windows |
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