Printing apparatus, data transferring method and medium

A data transferring method executed in a printing apparatus,

• the printing apparatus including:
• a main control circuit;
• a sub-control circuit group connected to the main control circuit in series, the sub-control circuit group being configured to transfer data from the main control circuit downstream;
• and
• a head group configured to be driven by the sub-control circuit group based on the data, wherein:
• the sub-control circuit group includes a first sub-control circuit connected to the main control circuit, and a second sub-control circuit positioned downstream of the first sub-control circuit;
• the main control circuit is configured to reserve a main communication address space in the main control circuit;
• the first sub-control circuit is configured to reserve a first sub-communication address space in the first sub-control circuit;
• and
• the first sub-control circuit includes a first sub-memory,
• the method comprising:
• in a case that the data is written into a first main communication address space, write the data written into the first main communication address space into the first sub-memory by the first-sub control circuit, the first main communication address space being reserved in the main communication address space and being correlated with the first sub-memory;
• and
• in a case that the data is written into a second main communication address space reserved in the main communication address space, write the data written into the second main communication address space into the first sub-communication address space by the first-sub control circuit.

A non-transitory computer-readable medium storing a program that is executable by a printing apparatus,

• the printing apparatus including:
• a main control circuit;
• a sub-control circuit group connected to the main control circuit in series, the sub-control circuit group being configured to transfer data from the main control circuit downstream;
• and
• a head group configured to be driven by the sub-control circuit group based on the data, wherein:
• the sub-control circuit group includes a first sub-control circuit connected to the main control circuit, and a second sub-control circuit positioned downstream of the first sub-control circuit;
• the main control circuit is configured to reserve a main communication address space in the main control circuit;
• the first sub-control circuit is configured to reserve a first sub-communication address space in the first sub-control circuit;
• and
• the first sub-control circuit includes a first sub-memory,
• the program is configured to cause the first sub-control circuit to execute a process of:
• in a case that the data is written into a first main communication address space, writing the data written into the first main communication address space into the first sub-memory, the first main communication address space being reserved in the main communication address space and being correlated with the first sub-memory;
• and
• in a case that the data is written into a second main communication address space reserved in the main communication address space, writing the data written into the second main communication address space into the first sub-communication address space.