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Based on the symptoms you described, it sounds like there may be a timing issue with your Epson R1900 printer. The erratic spacing and repeated printing of the same image or text on the next line suggest that the paper advance mechanism is not functioning properly. This could be caused by a number of factors, including a worn or damaged paper feed roller, a misaligned paper feed mechanism, or a malfunctioning sensor that controls the paper advance timing.
To troubleshoot this issue, you can try the following steps:
Check the paper feed roller for wear or damage. If it is worn or damaged, it may need to be replaced.
Check that the paper is loaded correctly in the printer, and that it is not jammed or wrinkled.
Check that the paper thickness setting in the printer driver matches the paper you are using.
Clean the paper feed mechanism and paper feed roller with a soft, lint-free cloth.
Reset the printer by turning it off, unplugging it from the power source, and leaving it unplugged for at least 10 minutes before plugging it back in and turning it on again.
If none of these steps resolve the issue, you may need to take your printer to a qualified technician for repair or replacement of faulty parts.
if it isnt old motors or bad battery
I would say resistance or battery values are the cause
if that erratic
most are now a printed board or throw away module
For
this operation, first get the cartridges into the center and pull the
plug on the printer so it won't try to put them away while you are
working on them. I haven't tried this scheme on a printer yet, but it's
worked in other tight spaces: dampen a paper towel with isopropyl
alcohol (rubbing alcohol). Wrap it once around the end of a strip of
poster board the width of the cartridge and long enough for convenient
handling, and hold it with just enough tension the paper towel to keep
it in place. Slide this under the ink heads and gently wipe them with
the paper towel. Flip the cleaning tool over and repeat with this side.
Replace the strip of paper towel and repeat as necessary. And while you
are at it, gently wipe out the head parking zone so it doesn't
re-contaminate the heads.
Of course, it is possible you really
are out of ink - sometimes ink feed to the heads gets erratic when the
level is very low.
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