Gap Adjustment Menu - Epson Stylus PRO 7500 Service Manual

EPSON Stylus Pro 7500

1.6.6 Gap Adjustment Menu

By running this mode, the contents of the following table are displayed and adjustment of
each item can be performed.
o
Gap Adjustment Menu Selection:
o
Item Selection:
o
Changing or Selecting Setting Values:
o
Setting the Set Value:
Mode End:
The paper thickness setting, Bi-D, gap (adjustment of the Bi-d deviation between the left
and right heads), and printing of the adjustment pattern as well as adjustment are executed
in the gap adjustment menu.
Each setting is made by the following panel button operations. If you select the Gap
Adjustment Menu, you cannot proceed to selection of the other items without performing
the "Paper Thickness" setting. After setting the paper thickness (using the Enter button), the
menu automatically changes to the adjustment mode.
Table 1-37. Gap Adjustment Menu
Display Setting Value
Standard or 0.0 ~ 1.6
PAPER THICK
mm
Print All
ADJUST. PATT.
#1 ~ #6
#1 1 ~ 7 ~ 15
#2 1 ~ 7 ~ 15
#3 1 ~ 7 ~ 15
#4 1 ~ 7 ~ 15
Product Description
See the panel setting menu
procedure.
Paper Source button
"+" or "–" button.
"Enter" button
"Pause" button.
Contents
Specify the paper thickness used in the gap
adjustment in 0.1 mm units. Ordinarily, the
printer is used with the "Standard" specification,
and in this case, the paper thickness becomes as
follows: Paper Thickness Detection Sensor
detection results =
If [ON / Thin Paper] : 0.2 mm
If [OFF / Thick Paper] : 1.2 mm
Specifies the gap adjustment pattern to be
printed. (All patterns or the desired pattern.)
Bi-D Adjustment (240 cps, Normal dot, Left)
Bi-D Adjustment (240 cps, Normal dot, Right)
Bi-D Adjustment (240 cps, Normal dot, Left)
Bi-D Adjustment (240 cps, Normal dot, Right)
Panel Setting Menu
Table 1-37. Gap Adjustment Menu
Display Setting Value
#5 1 ~ 7 ~ 15
#6 1 ~ 7 ~ 15
The setting method is shown below.
1) Set A1 roll paper.
2) Enter the Gap Adjustment Menu by the panel.
3) If the paper thickness is set on 0.2 mm or 1.2 mm by the panel, it is recognized as being
the same as "Standard." If you are setting other values, input the paper thickness for the
paper you are using in 0.1 mm units, in accordance with the paper's specifications. The
purpose for inputting the paper thickness at the first is to enable the printing of a pattern
right from the first that is thought to be close to the correction value that is already being
maintained by the printer, and thus to reduce the number of times the operation has to be
repeated.
4) Select an adjustment pattern to print (either all or individually) and print it. After
printing, the adjustment value input menu for that pattern will be displayed in the LCD.
5) Input the pattern No. for the printed pattern that has the smallest deviation in each
adjustment item displayed in the LCD.
6) Repeat steps 4) ~ 5) until adjustment of all the items has been completed.
NOTE: If you are carrying out gap adjustment printing, printing paper with the
following lengths is necessary.
• When selecting and printing 1 pattern: Approx. 7 cm.
• When selecting and printing all printing patterns (6 patterns): Approx.
40 cm.
NOTE: Always, in printing of each pattern, 1 block of 15 patterns is printed 6
times. Pattern No. 8 of the 15 patterns in one block shows the current
setting value.
The correction values set by the above adjustment are saved in NVRAM. The purpose of
maintaining the paper thickness (set during the adjustment) is for the sake of making
corrections in 0.1 mm units with respect to the paper thickness from the paper thickness
setting command PH.
Revision A
Contents
Gap Adjustment 1 (240 cps, Normal dot)
Gap Adjustment 3 (333 cps, Normal dot)
47