{"id":77557,"date":"2026-05-19T14:40:23","date_gmt":"2026-05-19T14:40:23","guid":{"rendered":"https:\/\/drivervn.com\/?p=77557"},"modified":"2026-05-19T14:40:23","modified_gmt":"2026-05-19T14:40:23","slug":"tai-sao-may-quet-lam-nho-kich-thuoc-bi-soc-va-nen-xam-huong-dan-khac-phuc-tung-buoc","status":"publish","type":"post","link":"https:\/\/drivervn.com\/?p=77557","title":{"rendered":"T\u1ea1i sao m\u00e1y qu\u00e9t l\u00e0m nh\u1ecf k\u00edch th\u01b0\u1edbc, b\u1ecb s\u1ecdc v\u00e0 n\u1ec1n x\u00e1m: H\u01b0\u1edbng d\u1eabn kh\u1eafc ph\u1ee5c t\u1eebng b\u01b0\u1edbc"},"content":{"rendered":"<p>Khi s\u1eed d\u1ee5ng m\u00e1y in \u0111a n\u0103ng (MFP) v\u00e0 m\u00e1y qu\u00e9t (scanner), ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng g\u1eb7p ph\u1ea3i ba l\u1ed7i ph\u1ed5 bi\u1ebfn: t\u00e0i li\u1ec7u sau khi qu\u00e9t b\u1ecb nh\u1ecf h\u01a1n k\u00edch th\u01b0\u1edbc kh\u1ed5 A4 g\u1ed1c, tr\u00ean h\u00ecnh \u1ea3nh xu\u1ea5t hi\u1ec7n m\u1ed9t \u0111\u01b0\u1eddng k\u1ebb li\u00ean t\u1ee5c (s\u1ecdc d\u1ecdc) v\u00e0 n\u1ec1n tr\u1eafng c\u1ee7a gi\u1ea5y b\u1ecb \u0111\u1ed5i sang m\u00e0u x\u00e1m r\u00f5 r\u1ec7t.<\/p>\n<p>Nh\u1eefng s\u1ef1 c\u1ed1 n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 h\u1ecfng h\u00f3c ph\u1ea7n c\u1ee9ng v\u00e0 \u0111\u1ec1u c\u00f3 th\u1ec3 x\u1ea3y ra tr\u00ean thi\u1ebft b\u1ecb c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c th\u01b0\u01a1ng hi\u1ec7u ph\u1ed5 bi\u1ebfn, bao g\u1ed3m <strong>HP<\/strong> (nh\u01b0 c\u00e1c d\u00f2ng Envy, LaserJet, OfficeJet), <strong>Canon<\/strong> (Pixma, i-SENSYS), <strong>Epson<\/strong> (EcoTank) v\u00e0 <strong>Brother<\/strong>.<\/p>\n<hr \/>\n<h2>1. L\u1ed7i k\u00edch th\u01b0\u1edbc: T\u1ea1i sao b\u1ea3n qu\u00e9t l\u1ea1i nh\u1ecf h\u01a1n kh\u1ed5 A4?<\/h2>\n<h3>Nguy\u00ean nh\u00e2n:<\/h3>\n<p>Nguy\u00ean nh\u00e2n ch\u00ednh khi\u1ebfn b\u1ea3n sao k\u1ef9 thu\u1eadt s\u1ed1 b\u1ecb thu nh\u1ecf l\u00e0 do s\u1ef1 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t gi\u1eefa ti\u00eau chu\u1ea9n gi\u1ea5y c\u1ee7a v\u00f9ng trong c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m. Theo m\u1eb7c \u0111\u1ecbnh, nhi\u1ec1u tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n (driver) \u0111\u1eb7t s\u1eb5n kh\u1ed5 gi\u1ea5y c\u1ee7a M\u1ef9 l\u00e0 <strong>Letter<\/strong> (216 \u00d7 279 mm), kh\u1ed5 n\u00e0y r\u1ed9ng h\u01a1n nh\u01b0ng l\u1ea1i ng\u1eafn h\u01a1n kh\u1ed5 <strong>A4<\/strong> ti\u00eau chu\u1ea9n c\u1ee7a ch\u00e2u \u00c2u (210 \u00d7 297 mm). Khi t\u00e0i li\u1ec7u A4 \u0111\u01b0\u1ee3c qu\u00e9t b\u1eb1ng c\u1ea5u h\u00ecnh Letter, t\u00ednh n\u0103ng t\u1ef1 \u0111\u1ed9ng c\u1eaft khung ho\u1eb7c &#8220;v\u1eeba kh\u00edt k\u00edch th\u01b0\u1edbc&#8221; s\u1ebd t\u1ef1 \u0111\u1ed9ng co h\u00ecnh \u1ea3nh l\u1ea1i theo t\u1ef7 l\u1ec7, t\u1ea1o ra c\u00e1c kho\u1ea3ng l\u1ec1 th\u1eeba v\u00e0 l\u00e0m gi\u1ea3m t\u1ef7 l\u1ec7 c\u1ee7a b\u1ea3n qu\u00e9t.<\/p>\n<h3>Gi\u1ea3i ph\u00e1p:<\/h3>\n<ul>\n<li>M\u1edf \u1ee9ng d\u1ee5ng qu\u00e9t ch\u00ednh th\u1ee9c tr\u00ean m\u00e1y t\u00ednh (v\u00ed d\u1ee5: <i>HP Smart \/ HP Scan<\/i>, <i>Canon IJ Scan Utility<\/i> ho\u1eb7c <i>Epson Scan<\/i>).<\/li>\n<li>Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u qu\u00e9t, h\u00e3y v\u00e0o m\u1ee5c <strong>&#8220;Settings&#8221;<\/strong> (C\u00e0i \u0111\u1eb7t) ho\u1eb7c <strong>&#8220;Advanced Settings&#8221;<\/strong> (C\u00e0i \u0111\u1eb7t n\u00e2ng cao).<\/li>\n<li>T\u00ecm m\u1ee5c <strong>&#8220;Scan Size&#8221;<\/strong> ho\u1eb7c <strong>&#8220;Original Size&#8221;<\/strong> (K\u00edch th\u01b0\u1edbc g\u1ed1c) v\u00e0 thay \u0111\u1ed5i gi\u00e1 tr\u1ecb t\u1eeb &#8220;Letter&#8221; sang <strong>&#8220;A4&#8221;<\/strong> m\u1ed9t c\u00e1ch th\u1ee7 c\u00f4ng.<\/li>\n<li>T\u1eaft m\u1ecdi t\u00f9y ch\u1ecdn t\u1ef1 \u0111\u1ed9ng co gi\u00e3n h\u00ecnh \u1ea3nh, v\u00ed d\u1ee5 nh\u01b0 <strong>&#8220;Fit to page&#8221;<\/strong> (V\u1eeba kh\u00edt trang).<\/li>\n<\/ul>\n<hr \/>\n<h2>2. Xu\u1ea5t hi\u1ec7n s\u1ecdc d\u1ecdc tr\u00ean b\u1ea3n qu\u00e9t<\/h2>\n<h3>Nguy\u00ean nh\u00e2n:<\/h3>\n<p>H\u00ecnh d\u1ea1ng v\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a v\u1ec7t s\u1ecdc ph\u1ee5 thu\u1ed9c v\u00e0o ph\u01b0\u01a1ng th\u1ee9c b\u1ea1n s\u1eed d\u1ee5ng \u0111\u1ec3 qu\u00e9t t\u00e0i li\u1ec7u:<\/p>\n<ul>\n<li><strong>Khi qu\u00e9t qua khay n\u1ea1p gi\u1ea5y t\u1ef1 \u0111\u1ed9ng (ADF):<\/strong> N\u1ebfu b\u1ea1n \u0111\u1eb7t m\u1ed9t x\u1ea5p gi\u1ea5y v\u00e0o khay n\u1ea1p t\u1ef1 \u0111\u1ed9ng ph\u00eda tr\u00ean, t\u00e0i li\u1ec7u s\u1ebd di chuy\u1ec3n qua b\u1ed9 ph\u1eadn qu\u00e9t c\u1ed1 \u0111\u1ecbnh c\u1ee7a m\u00e1y qu\u00e9t. M\u1ed9t \u0111\u01b0\u1eddng k\u1ebb d\u1ecdc m\u1ea3nh (m\u00e0u \u0111en, tr\u1eafng ho\u1eb7c m\u00e0u) xu\u1ea5t hi\u1ec7n xuy\u00ean su\u1ed1t trang gi\u1ea5y cho th\u1ea5y m\u1ed9t h\u1ea1t b\u1ee5i nh\u1ecf, v\u1ebft b\u00fat x\u00f3a, keo d\u00e1n t\u1eeb nh\u00e3n d\u00e1n ho\u1eb7c d\u1ea5u v\u00e2n tay \u0111\u00e3 b\u00e1m v\u00e0o d\u1ea3i k\u00ednh qu\u00e9t h\u1eb9p c\u1ee7a m\u00e1y. C\u01a1 ch\u1ebf c\u1ee7a m\u00e1y qu\u00e9t s\u1ebd nh\u1eadn di\u1ec7n \u0111i\u1ec3m b\u1ea9n c\u1ed1 \u0111\u1ecbnh n\u00e0y th\u00e0nh m\u1ed9t \u0111\u01b0\u1eddng k\u1ebb th\u1eb3ng li\u00ean t\u1ee5c d\u1ecdc theo t\u1edd gi\u1ea5y \u0111ang chuy\u1ec3n \u0111\u1ed9ng.<\/li>\n<li><strong>Khi qu\u00e9t tr\u00ean m\u1eb7t k\u00ednh ph\u1eb3ng ch\u00ednh (Platen):<\/strong> N\u1ebfu t\u00e0i li\u1ec7u n\u1eb1m c\u1ed1 \u0111\u1ecbnh tr\u00ean m\u1eb7t k\u00ednh nh\u01b0ng v\u1ec7t s\u1ecdc v\u1eabn xu\u1ea5t hi\u1ec7n, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y ph\u1ea7n m\u1ec1m \u0111ang g\u1eb7p l\u1ed7i trong vi\u1ec7c t\u1ef1 \u0111\u1ed9ng nh\u1eadn di\u1ec7n ranh gi\u1edbi (&#8220;c\u1eaft th\u00f4ng minh&#8221;).<\/li>\n<\/ul>\n<h3>Gi\u1ea3i ph\u00e1p:<\/h3>\n<ul>\n<li>H\u00e3y c\u0103n ch\u1ec9nh t\u1edd gi\u1ea5y th\u1eadt chu\u1ea9n theo d\u1ea5u ch\u1ec9 h\u01b0\u1edbng g\u00f3c A4 tr\u00ean v\u1ecf c\u1ee7a m\u1eb7t k\u00ednh ph\u1eb3ng n\u1ebfu b\u1ea1n qu\u00e9t th\u1ee7 c\u00f4ng.<\/li>\n<li>Lau ch\u00f9i k\u1ef9 c\u00e1c b\u1ed9 ph\u1eadn quang h\u1ecdc. H\u00e3y d\u00f9ng m\u1ed9t mi\u1ebfng kh\u0103n vi s\u1ee3i (microfiber) ho\u1eb7c b\u1ea5t k\u1ef3 lo\u1ea1i v\u1ea3i m\u1ec1m n\u00e0o kh\u00f4ng \u0111\u1ec3 l\u1ea1i x\u01a1 v\u1ee5n. Th\u1ea5m m\u1ed9t ch\u00fat dung d\u1ecbch lau k\u00ednh (kh\u00f4ng x\u1ecbt ch\u1ea5t l\u1ecfng tr\u1ef1c ti\u1ebfp l\u00ean thi\u1ebft b\u1ecb!). Lau s\u1ea1ch m\u1eb7t k\u00ednh ph\u1eb3ng ch\u00ednh, v\u00e0 quan tr\u1ecdng nh\u1ea5t l\u00e0 <strong>d\u1ea3i k\u00ednh h\u1eb9p \u1edf ph\u00eda b\u00ean tr\u00e1i<\/strong> (b\u1ed9 ph\u1eadn ch\u1ecbu tr\u00e1ch nhi\u1ec7m qu\u00e9t khi d\u00f9ng khay ADF), c\u0169ng nh\u01b0 t\u1ea5m \u00e1p nh\u1ef1a m\u00e0u tr\u1eafng \u1edf m\u1eb7t d\u01b0\u1edbi c\u1ee7a n\u1eafp m\u00e1y qu\u00e9t.<\/li>\n<\/ul>\n<hr \/>\n<h2>3. N\u1ec1n x\u00e1m v\u00e0 \u0111\u1ed9 s\u00e1ng k\u00e9m (&#8220;l\u1edbp ph\u1ee7 m\u1edd&#8221;)<\/h2>\n<h3>Nguy\u00ean nh\u00e2n:<\/h3>\n<p>Hi\u1ec7n t\u01b0\u1ee3ng n\u1ec1n b\u1ecb ng\u1ea3 sang m\u00e0u x\u00e1m thay v\u00ec m\u00e0u tr\u1eafng tinh xu\u1ea5t hi\u1ec7n do ch\u1ecdn sai ch\u1ebf \u0111\u1ed9 qu\u00e9t ho\u1eb7c c\u1ea5u h\u00ecnh hi\u1ec7u chu\u1ea9n ph\u01a1i s\u00e1ng b\u1ecb l\u1ed7i. Khi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u1edf ch\u1ebf \u0111\u1ed9 <strong>&#8220;Photo&#8221;<\/strong> (\u1ea2nh) ho\u1eb7c qu\u00e9t \u1edf d\u1ea3i m\u00e0u \u0111\u1ea7y \u0111\u1ee7 <strong>&#8220;Color&#8221;<\/strong> (M\u00e0u), c\u00e1c c\u1ea3m bi\u1ebfn s\u1ebd c\u1ed1 g\u1eafng ghi l\u1ea1i k\u1ebft c\u1ea5u t\u1ef1 nhi\u00ean c\u1ee7a gi\u1ea5y, b\u00f3ng \u0111\u1ed5 t\u1eeb c\u00e1c n\u1ebfp nh\u0103n nh\u1ecf tr\u00ean t\u1edd gi\u1ea5y v\u00e0 \u00e1nh s\u00e1ng ph\u1ea3n chi\u1ebfu t\u1eeb b\u00ean ngo\u00e0i. K\u1ebft qu\u1ea3 l\u00e0 t\u1edd gi\u1ea5y tr\u1eafng s\u1ebd bi\u1ebfn th\u00e0nh m\u00e0u x\u00e1m b\u1ea9n.<\/p>\n<h3>Gi\u1ea3i ph\u00e1p:<\/h3>\n<ul>\n<li>Tr\u00ean giao di\u1ec7n c\u1ee7a ph\u1ea7n m\u1ec1m qu\u00e9t, h\u00e3y thay \u0111\u1ed5i lo\u1ea1i n\u1ed9i dung t\u1eeb &#8220;Photo&#8221; (H\u00ecnh \u1ea3nh) sang <strong>&#8220;Document&#8221;<\/strong> (T\u00e0i li\u1ec7u) ho\u1eb7c <strong>&#8220;Text&#8221;<\/strong> (V\u0103n b\u1ea3n).<\/li>\n<li>N\u1ebfu b\u1ea1n ch\u1ec9 c\u1ea7n qu\u00e9t t\u00e0i li\u1ec7u v\u0103n b\u1ea3n th\u00f4ng th\u01b0\u1eddng kh\u00f4ng c\u00f3 y\u1ebfu t\u1ed1 m\u00e0u s\u1eafc, h\u00e3y ch\u1ecdn ch\u1ebf \u0111\u1ed9 qu\u00e9t <strong>&#8220;Black and White&#8221;<\/strong> ho\u1eb7c <strong>&#8220;Monochrome&#8221;<\/strong> (\u0110en tr\u1eafng) thay v\u00ec ch\u1ebf \u0111\u1ed9 &#8220;Grayscale&#8221; (Thang x\u00e1m). \u0110i\u1ec1u n\u00e0y bu\u1ed9c c\u00e1c thu\u1eadt to\u00e1n ph\u1ea3i lo\u1ea1i b\u1ecf t\u1ea5t c\u1ea3 c\u00e1c s\u1eafc th\u00e1i trung gian, gi\u00fap n\u1ec1n gi\u1ea5y tr\u1edf n\u00ean tr\u1eafng tinh ho\u00e0n h\u1ea3o v\u00e0 v\u0103n b\u1ea3n \u0111\u1ea1t \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n cao.<\/li>\n<li>\u0110\u1ed1i v\u1edbi c\u00e1c t\u00e0i li\u1ec7u m\u00e0u, h\u00e3y v\u00e0o ph\u1ea7n c\u00e0i \u0111\u1eb7t h\u00ecnh \u1ea3nh th\u1ee7 c\u00f4ng v\u00e0 t\u1ef1 t\u0103ng m\u1ee9c \u0111\u1ed9 <strong>&#8220;Brightness&#8221;<\/strong> (\u0110\u1ed9 s\u00e1ng) th\u00eam 10\u201315%, \u0111\u1ed3ng th\u1eddi t\u0103ng nh\u1eb9 m\u1ee9c <strong>&#8220;Contrast&#8221;<\/strong> (\u0110\u1ed9 t\u01b0\u01a1ng ph\u1ea3n).<\/li>\n<\/ul>\n<div class=\"social-share-buttons\"><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/drivervn.com\/?p=77557\" target=\"_blank\" rel=\"noopener\">Facebook<\/a><a 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