Umutwe urambiranye ufata imbere imbere yimbere, kuyobora padi ntizunguruka hamwe nigikoresho, ifite kwambara gake no guhinduka byoroshye.Ingano yoguhindura irashobora kugerwaho mugusimbuza umurongo uyobora cyangwa kongera & kugabanya shim.Ingano ya cartridge irashobora guhindurwa murwego runaka.Nibyiza cyane kandi byongeye kubiryozwa.
| Ingano ya Cartridge | Kurambirwa kumurongo | Ingano ya Cartridge | Kurambirwa imitwe yicyitegererezo |
| Φ32 | Φ27 | Φ88-Φ107 | 80 |
| Φ35 | Φ30 | Φ108-Φ137 | 100 |
| Φ50-60 | Φ43 | Φ138-Φ177 | 100 |
| Φ61-72 | 56 | Φ178-Φ300 | 160 |
| Φ73-77 | Φ65 | > 300-500 | 100 |
| Φ78-87 | Φ70 |