Pg Reference Value - Epson DLQ-3000+ Service Manual

Epson dlq-3000+ 24-pin dot matrix printer
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DLQ-3000+

4.2.1.2 PG Reference Value


Platen gap reference value measurement
Step 1) Turn the platen roller to set the white eccentricity mark to the top. (This operation
sets the PG narrowest.)
W h i t e M a r k
A
- A '
Step 2) Set the release lever to the cut sheet mode.
Step 3) Set the PG adjust lever to the "Auto" (the lowest).
Step 4) Put the interlock switch and cover open sensor disabled condition.
Step 5) Connect the printer and the host computer with a parallel interface cable, and turn
the printer on first and then the computer.
Step 6) Start the adjustment program, and the main menu below appears on the screen:
Step 7) Input "1" to select "1. Platen Gap Adjustment" and press the "Return" key, and the
platen gap adjustment menu below appears on the screen:
Step 8) Input "1" to select "1. ALPHA INPUT".
Step 9) When the monitor show the "ALPHA INPUT" menu, input the value which is marked
on the printhead nose side for the "
GAP" menu.
Unless ALPHA value is input, the program does not proceed to the next operation.
4-4
A '
A
Figure 4-2. Eccentricity Mark
DLQ-3000+/VP-4200
CHECK PROGRAM
REV.
1. Platen Gap Adjustment
2. Bi-D Adjustment
3. END
If ready, press 1-3 and the "RETURN" key.
PLATEN GAP
1. ALPHA INPUT
2. PLATEN GAP MEASUREMENT
3. PLATEN GAP INPUT
4. PLATEN GAP VERIFICATION
ALPHA = 0
 
" value, and the menu returns to the "PLATEN
CAUTION
P l a t e n R o l l e r

Rev. A

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