3) SJMB 6500 ink Maintenance Kit. Keep your printer have a fluent, stable and superb printing performance. Replace SJMB 6000 maintenance cartridge when your printer alerts.
4) Important Tips : The SJMB6500 Maintenance Box have Two Versions A and B , we have to use them alternately . For Example : If the first time use Version A, the next time we have to use Version B,and the third time we use A again. Means A-B-A-B-A-B...... or B-A-B-A-B-A...... .