Tpe Level Reset - Epson 2070 - LQ B/W Dot-matrix Printer Service Manual

Adjustment

4.2.4 TPE Level Reset

This section describes the procedure to reset the TPE (top paper end) level. This operation is required when
the PW sensor assembly is replaced, and if it is not performed, the printer does not recognize that the PW
sensor has been replaced, which limits the ability of the new sensor to operate. This reset operation can be
performed only from the Settings Diskette.
•
Note: After this operation, the reset value for the TPE LEVEL is printed out automatically.
Check that the reset value is FF<H>.
•
When you run Check Pro. from the Main Menu after running the TPE LEVEL RESET,
the TPE LEVEL is not printed for "FF." This is because the measured TPE level
has been overwritten in the EERPOM. This is no problem unless an extremely low
TPE LEVEL is printed as the Check Pro. result, despite the PW sensor's having been
replaced and the TPE LEVEL being reset. If this occurs, replace the PW sensor again.
1. Insert the Settings Diskette into Drive A of the PC, and turn the power on.
2. Type GWBASIC and press ENTER.
Load and run the J10A30E program. First, the Machine Select Menu is displayed.
3.
In this menu, highlight 24 pins by moving the cursor with ↑ or ↓ key, and select it by pressing
4.
ENTER.
After you select 24 pins, the Setting File menu is displayed.
5.
In this menu, highlight the destination factory settings by moving the cursor with ↑ or ↓ key,
6.
and select the factory settings by pressing ENTER.
7. After you select the factory settings, the Main Menu is displayed.
In this menu, highlight TPE LEVEL RESET by moving the cursor with ↑ or ↓ key and select it
8.
by pressing ENTER. This operation prints the reset value of the TPE LEVEL automatically. The
reset value should be FF in hexadecimal. Check that the reset value is FFH.
To exit the program, press ESC until the display returns to the MS-DOS prompt.
9.
4-8
Program : J10A30E
VR 0 = 0 VR 1 = 0
[ Printer select ]
(1) 9 pins
> (2) 24 pins
Figure 4-14 Machine Select Menu
Program : J10A30E
24 pins VR 0 = 0
[ Factory Setting File
> (1) DEFSTD
(2) USASTD
(3) EURSTD
(4) NLSP
(5) RUSSIAN
Figure 4-15 Factory Setting Menu
Program : J10A30E
24 pins VR 0 = 0 VR 1 = 0
[ Main MENU
(1) Bi-d Adjust
(2) Check Pro. (FF)
(3) Check Pro. (A3)
(4) Check Pro. (A4 1P)
(5) Check Pro. (A4 Multipart)
Figure 4-16 Main Menu
Setting :
VR 2 = 0
Setting : DEFSTD
VR 1 = 0 VR 2 = 0
]
(6) ITALIC
Setting : DEFSTD
VR 2 = 0
]
(6) Check Pro. (Envelope)
> (7) TPE LEVEL RESET
LQ-2070 Service Manual
Rev.A