Setting Threshold Values For Detectors - Epson TM-U675 Service Manual

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Setting Threshold Values for Detectors

Perform this setting when you have removed or replaced any of the following.
Items Requiring Setting
The slip T. O. F. detector assembly.
The slip B. O. F. detector assembly.
The paper ejection detector assembly.
The validation detector assembly.
The mechanism assembly.
The main circuit board assembly (for TM-U675/U675P).
CAUTION:
Work indoors to avoid direct sunlight when doing the following. Use normal fluorescent
lighting available in most rooms. You will not be able to make accurate adjustments if
there is natural light (sunlight) or man-made light sources (lamps, etc.) other than
fluorescent lighting.
Allow all the light from the fluorescent lighting to enter the printer when working. You will
not be able to make accurate adjustments if you allow a shadow to fall on the printer or
you turn OFF the fluorescent lighting while working.
1. Install the roll paper.
Note:
You must have roll paper installed to make accurate settings.
2. Remove slip paper if it is inserted.
Note:
You cannot make accurate settings if there is slip paper present.
3. Connect the power supply to the printer.
4. Open the roll paper cover.
5. Turn on the power switch for the printer while holding down the FEED button and the
RELEASE button at the same time.
6. Press the RELEASE button 7 times.
7. Close the roll paper cover.
8. The printer will automatically set the detectors. The main circuit board will store the setting
values.
3-10 Adjusting and Setting Rev.D