Pg Reference Value - Epson DLQ-3000 Service Manual

DLQ-3000+

4.2.1.2 PG Reference Value

Y
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.)
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 " " value, and the menu returns to the
"PLATEN GAP" menu.
Unless ALPHA value is input, the program does not proceed to the next operation.
4-4
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
CAUTION
Rev. A