A small TIJ printer is a sensible choice for dates, batch numbers and compact QR codes. Trouble appears when a packaging panel grows from 25 mm to 150 mm or more.
A carton producer may begin with two lines of text. Six months later, the retailer asks for a larger logo, handling symbols, a logistics barcode and product details in two languages. The factory adds a second TIJ head, then a third.
Each cartridge has a different ink level. Every head needs separate alignment, and a gap of only 1 mm can break a line or leave a visible seam through the graphic. When one cartridge runs out, the complete layout may no longer print correctly.
A multi-head PIJ system changes the way the job is managed. Faith’s PIJ platform supports seamless large-format printing above 216 mm, allowing a wide panel to be handled as one design rather than several disconnected strips.
The advantage becomes clearer on a 1.2-meter board moving continuously through production. The required layout might include a 180 mm-high brand mark, product grade, specification, batch number and QR code. Several cartridge heads could complete the job, but calibration takes longer and large graphics consume cartridges quickly.
A centralized PIJ system is easier to control when the printed content has become part of the packaging rather than a small identification code.
Large format does not mean every customer should select the widest configuration. The final print height, head arrangement, product flatness and available installation space must be checked first. A curved pipe needs a different mounting structure from a flat carton or building board.
Factories usually move to PIJ when they are no longer printing a code in one corner. They are printing a complete information panel, and the collection of separate TIJ heads has become the weakest part of the line.