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Unit 5: Printer Configuration
DOWNLOAD MODE
This download feature allows the operator to download print jobs to the printer. The data is received through an RS232C interface in binary form using XMODEM protocol for file transfer.
Refer to Figure
DSW = 1: OFF, 2: OFF, 3: ON, 4: OFF + POWER
Flashes |
|
orange and enters the |
|
Program Download Mode. |
|
Format storage area if |
|
never done. |
|
Blinks green while waiting |
|
for data. | Ensure the printer is |
| |
| waiting for data to be |
| sent before powering off. |
| Press POWER. |
Confirm the printer is |
|
standing by for data | Printer |
before sending. | |
| shuts down. Must be restarted |
| to use the downloaded |
Send data. | data. |
| |
Flashes green while receiving |
|
data. |
|
LED |
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changes from red to orange to |
|
green when writing data to |
|
Flash ROM. |
|
Flashes green when |
|
complete. |
|
Figure 5-4, Program Download Mode
In XMODEM protocol, data is transferred block by block. Each starts with SOH(01h) and consists of 132 bytessuch as block number (BLK) of 1 byte, complement of block number (_BLK), 128 bytes main data, and check sum (SUM) of 1 byte.
SATO MB2i Service Manual | PN 9001145B | Page |