DISASSEMBLY, ASSEMBLY, AND ADJUSTMENT
REV.-A
4. Depress the ON LINE switch, so that only the new selected pattern is printed again.
5. Confirm the printed pattern. If it is not OK, return to STEP 3.
Example: [Present] VR1 = -3 (Pattern 2)
Depress the LF switch two times.
VR2 = - 1 (Pattern 4)
6. Rotate VR1 until the buzzer sounds.
7. Turn the power off.
LQ Mode Adjustment
LQ mode adjustment is similar to the one for draft mode.
1 . Turn the power on while depressing the ON LINE, FORM FEED (FF), and LINE FEED (LF) switches.
2. Depress the FF switch, so that the test pattern is printed. The test pattern prints four patterns, and the
value of the position where VR2 is becomes the center. (Refer to Figure 4-39.)
Example: VR2 = +9 (Pattern 3)
Figure 4-39. Test Pattern Printing (LQ Mode)
3. Check and select the most aligned pattern.
If the selected pattern is above the center, depress the FF switch an applicable number of times (once or
twice). (Refer to Table 4-6.)
If the selected pattern is lower than the center, depress the LF switch an applicable number of times
(once or twice). (Refer to Table 4-6.)
Example: The most aligned pattern is VR2 = + 7 (Pattern 1). So, depress the FF switch two times.
4. Depress the ON LINE switch, so that only the new selected pattern is printed again.
5. Confirm the printed pattern. If it is not OK, return to STEP 3.
Example: [Present] VR2 = +7 (Pattern 1)
4 Depress the FF switch one time.
VR2 = +6
6. Rotate VR2 until the buzzer sounds. (Position VR2 to the value of the new selected pattern.)
7. Turn the power off.
4-28
LQ-500/L-1000
Summary of Contents for ActionPrinter L-1000
Page 1: ...LQ 500 L 1000 TECHNICAL MANUAL EPSON ...
Page 3: ...REV A REVISION SHEET iv LQ 500 L 1000 ...
Page 18: ...GENERAL DESCRIPTION REV A Figure 1 5 Character Matrix 1 10 LQ 500 L 1000 ...
Page 39: ...PRINCIPLES OF OPERATION REV A 2 2 LQ 500 L 1000 Figure 2 1 Cable Connections ...
Page 44: ......
Page 47: ...PRINCIPLES OF OPERATION REV A Table 2 2 Power Supply Applications 2 10 LQ 500 L 1000 ...
Page 77: ...PRINCIPLES OF OPERATION 2 40 REV A Figure 2 40 Schmitt Trigger Circuit LQ 500 L 1000 ...
Page 100: ...REV A PRINCIPLES OF OPERATION Table 2 20 Control Commands LQ 500 L 1000 2 63 ...
Page 106: ...REV A PRINCIPLES OF OPERATION Figure 2 64 Printing Routine LQ 500 L 1000 2 69 ...
Page 141: ...DISASSEMBLY ASSEMBLY AND ADJUSTMENT Table 4 5 VR2 Specifications REV A 4 26 LQ 500 L 1000 ...
Page 148: ...TROUBLESHOOTING REV A 1 Printer Does Not Operate with Power Switch ON 5 4 LQ 500 L 1000 ...
Page 149: ...REV A TROUBLESHOOTING 2 Abnormal Operation of Carriage LQ 500 L 1000 5 5 ...
Page 151: ...REV A TROUBLESHOOTING Figure 5 3 Printhead Resistance LQ 500 L 1000 5 7 ...
Page 152: ...TROUBLESHOOTING REV A 4 Abnormal Paper Feed with normal printing 5 8 LQ 500 L 1000 ...
Page 153: ...REV A TROUBLESHOOTING 5 Abnormal Operation of Control Panel LQ 500 L 1000 5 9 ...
Page 156: ...TROUBLESHOOTING REV A Table 5 6 Power Supply Circuit Unit Repair 5 12 LQ 500 L 1000 ...
Page 157: ...REV A T R O U B L E S H O O T I N G ...
Page 162: ...REV A MAINTENANCE Figure 6 2 LQ 500 L 1000 Lubrication Points LQ 500 L 1000 6 3 ...
Page 163: ......
Page 168: ......
Page 170: ...REV A APPENDIX Table A 5 µPD7810 7811 Port Functions LQ 500 L 1000 A 5 ...
Page 173: ...APPENDIX REV A Figure A 7 E01A05KA Block Diagram A 8 LQ 500 L 1000 ...
Page 174: ...REV A Table A 6 E01A05KA Pin Functions APPENDIX LQ 500 L 1000 A 9 ...
Page 185: ...APPENDIX REV A A 20 LQ 500 L 1000 ...
Page 186: ...REV A Table A 8 CN2 Connector Table A 9 CN3 Connector Cont A P P E N D I X LQ 500 L 1000 A 21 ...
Page 187: ...APPENDIX REV A Table A 10 CN4 Connector Cont Table A 12 CN6 Connector Cont A 22 LQ 500 L 1000 ...
Page 188: ...REV A APPENDIX Table A 17 Part No Reference Table LQ 500 L 1000 ...
Page 189: ...APPENDIX REV A Figure A 24 LQ 500 Exploded Diagram A 24 LQ 500 L 1000 ...
Page 190: ...REV A APPENDIX Figure A 25 M5410 Printer Mechanism Exploded Diagram LQ 500 L 1000 A 25 ...
Page 191: ...APPENDIX REV A Figure A 26 Tractor Unit A 26 LQ 500 L 1000 ...
Page 192: ......