Lê Thuận Thành
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. Máy in model GP-4000, GP-2000, GP-540, GP-520 gặp lỗi "Cannot cut paper for one of the following reasons. Paper that has been cut remains on the output guide. There is a foreign object near the output slot that is obstructing the cutter blade. The paper is not being used under the recommended usage conditions. The paper in use cannot be used with Automatic cut."... Cần hướng dẫn sửa lỗi 4920 ~ fix error code 4920 trên máy in canon gp-4000, gp-2000, gp-540, gp-520 bằng các bước cụ thể, chi tiết