LQ-670K is not on-line failure analysis:
1, DOS mode for the needle test, the computer without making any errors, but the printer still no response;
2, playing 98 test page, the print head moves back and forth several times, after the issue of the border continue to sound the alarm, the computer prompts on-line error;
3, the amount of parallel connector CN1 of the / STB, / ERR, / PE, BUSY, / ACK signals and other commands feet were normal;
4, cable and computer for on-line host, always remain;
5, confirming that the printer is always the motherboard, but the motherboard to interface signals are normal, then the problem would only be out in the output interface; through a comparison of the measured one, finally found the first foot "/ STB" side of the reed deformed, resulting in CN1 and online access to cable is not close, resulting in a
battery for vgp-bps9/s non-line failure;
6, the deformation of the solder plating on the reed to make close contact with CN1 cable with on-line, fault Exclusion.
LQ-670K strokes of characters printed crooked.
Failure Analysis:
clean word car components, the BI-D adjustment, print out the calibration pattern is crooked from start to finish;
motor vehicle replacement word, the word car components (word car guide shaft, the word car bracket, linoleum), the fault still;
replacement of mechanical, print normal. Mechanical aspects of the problem parts of the lock, but the main part of the word car components have been changed, and what it?
try to replace the word car timing belt, timing belt wheels clean, oil. Try to play, the fault still;
drive to replace the entire color frame and mounted inside the gear and do not try to play ribbon, the fault still; mechanical things that can not seem to have changed, the problem still exists!
pick up the machine's print head to see, not dirty Yeah, just the print head and ribbon contact surface subsidence has been grinding a little bit, and took a new print head replacement try to fight the problem finally solved!
Fault Summary: As the user print larger than usual, greater damage to the print head, resulting in pinhole
thinkpad t61 series battery larger lead, leading to print out the needle when the needle sway, rather than the track should be printed, it produces the above failure .
LQ-670K + POST interrupted three lights flash.
Failure Analysis:
machine in the boot after the self-action, but the words just have a car back and forth action immediately after the stop (seems to be stuck, like a foreign body), then the control panel lights all flash, can not be printed; This shows that the fault may is a sensor, and P-ROM on the motherboard, and ultimately causes the printer to initialize the self-test error;
measured with a multimeter and the substitution method for detecting the sensor were not unusual; substitution and P-ROM motherboard failure or still;
doubts the word car motor problems, but measure the resistance with normal and there is not much difference, a time maintenance work in trouble I do not know how to do it;
Finally, try to replace the word motor car, put on after the normal self-test machine, online printing is no problem. Fault Summary: Although the word motor vehicle under normal circumstances is not easy to damage, but not definitely not happen; so see Italy in case of similar symptoms, you should first try a direct replacement of the word motor car, to avoid detours
Solve the LQ-1600K3 not misfeeds printer parts as LQ-1600K3 530 abnormal working conditions, leading to feed, to determine the solution is as follows:
Symptom: LQ-1600K3 stylus boot normally, install the machine after a single-page warning, do not feed and
compaq presario cq60 series battery send the voice drops, load continuous paper is the same phenomenon.
Judge:
1, the initial estimate is a single-sheet feeder 529 problems (529 is the K3 is back out of paper sensor part number, can be found in the exploded view), first check the print head and print head adjacent to the sensor cable, no checks damage, and make adjustments after maintenance, power problem is still there.
2, the suspected head board and cable transmission of information into the paper sensor is malfunctioning printer feed after the alarm, so the motherboard replaced, but the problem is not resolved.
3, the above components tested were normal, analysis of the problem may still feed sensor. Principle according to the printer and then feed each of the printer feeder unit demolished tested and found to advance the paper sensor 530 (LQ-1600K3 printer part number) and other reasons as scraps of paper and dust caused by the sensor does not bounce, when you load a single sheet of paper When the machine does not feed, and the police. The sensor after cleaning and removal of scraps of paper, the printer installed on the machine, the problem is resolved.
The discussion: LQ-1600K3 printer does not feed most of the judge is 529 (K3 printer part number), because most users do not have to move the paper, which led to neglect of engineers in the repair process 530 (K3 printer part number) in working condition , leading engineers to quite a few detours, according to the above, EPSON LQ-1600K3 +, K4 problems mentioned above should be tested ahead of paper sensor 530 working condition, so the problem can be resolved quickly.
LQ-1600K3-feed action, but not detected when the paper failed to determine the solution.
Failure causes and solutions:
paper width detector failure, replace the detector;
wear sensor head cable (630), replacement of the sensor cable;
paper width sensor Cam (588) aging, wear and tear leading to weakening of the paper reflected light, replace the sensor chip or replace the motherboard detects file line resistor R100 (393 to 202 by the resistance).
VAT votes to play down the contents of misplaced or lost the last one in the Golden Spike proposed micro-adjustment methods used in the software, according to the actual printing of type "downward" and "the right adjustment" parameters. Forward paper
acer aspire 4810 series battery: Golden Harvest security control system in the space of the invoice print window, adjust the top margin of +2, left, -5, into cardboard paper Locator adjusted to 10mm. Backward paper: Print the invoice window to adjust the top margin of +2, the left margin of -5, while the positioning of the rear left side of the paper straight tooth sprocket tractor speed to between 6-7.
