Service manual

4.1.7 Bi-D (Bidirectional Printing) Alignment Adjustment

The bidirectional alignment is required when the printer mechanism, main board, or printhead (board) is

replaced. Performing this adjustment determines a compensation value to rectify any deviation in the print

position. This deviation could be caused by different print speeds, which are due to tolerances in the

mechanical components, or to differences in print timing between odd-numbered lines and even-numbered

lines in bidirectional printing. The printer stores the compensation data in the EEPROM on the C184 MAIN

board and refers to this data when performing bidirectional printing.

1. Connect the PC to the target printer using a parallel interface cable and turn the printer on.

2. Load BASIC on the PC, and run the program. You see the following destination select menu.

***** Customer *****

1. EAI, EAI (Latin America), EAL, ESP

2. EDG, EUL, EFS, EIS, EIB, EUL (Northern Europe), EUL (Middle East), EHK

4. JAPAN

7. END

Select Menu ?

3. Input the number for the destination. Then the main menu appears, as shown below.

If you enter an incorrect number as the destination selection, printer functions are not

guaranteed.

STYLUS Pro XL+ Program : Rev. X

customer :

1. Head VH input

2. Ink consumption counter reset

3. Head angular & linear adjustment

4. Head position check

5. BK. YMC head gap adjustment (head gap center )

6. Bi-D adjustment (Bi-d center )

7. Head VH indication

10. Change customer & data / END

0. Cleaning

Select Menu ? ■

4. When the main menu appears, choose “6, Bi-D Adjustment” by typing 6 and pressing ENTER. (The

printer prints a check pattern with a sample compensation value. The next menu appears on the display.)

INPUT ADJUST No. (If OK INPUT Y)? ■

720 DPI adjust range ( from –30 to 30)

Stylus Pro XL+ Service Manual Adjustment

Rev.A 4-17