POS Printer Not Printing Receipts, Windows Test Page Works, COM Port, USB Port, Cash Drawer, Auto-Cut, and Receipt Character Problems

POS printer problems usually happen when the receipt printer works in one place but not in the point-of-sale software. Windows may print a test page, while receipts do not print, the cash drawer does not open, the cutter does not work, or characters print incorrectly. These cases often involve old COM, LPT, USB, or network port settings, stale printer names, POS receipt templates, Epson interface boards, and Windows print routes.

Problem: POS printer prints test page but not receipts

What users observed: Users printed a Windows test page successfully, but the POS application did not print receipts. The printer was connected, but the business software still sent jobs to an old printer name, port, or receipt profile. This matched Printer Connected But Not Printing behavior inside POS software.

What was tried: Users restarted the printer, restarted the POS system, printed a Windows test page, changed the default printer, checked receipt settings, reinstalled the driver, and tested another transaction.

How this played out: The repair path was POS route correction. Users selected the active receipt printer queue inside the POS software, checked the port, saved the receipt profile, and tested a transaction. Receipts printed after the POS application used the same working route as Windows.

Problem: POS software points to the wrong COM, LPT, USB, or network port

What users observed: The printer was installed in Windows, but the POS system still pointed to COM1, LPT1, an old USB printer name, or a previous network printer. Receipts failed even though the printer itself was ready.

What was tried: Users checked the POS printer settings, changed ports, reinstalled the driver, renamed the printer, checked Device Manager, and tested another cable.

How this played out: The fix was port matching. Users identified the active Windows printer queue or port, selected it inside the POS software, removed old COM or LPT references, and tested a receipt. Printing returned after the POS system stopped using the old connection path.

Problem: POS receipt printer appears offline in POS software

What users observed: The receipt printer appeared ready in Windows but offline or unavailable in the POS application. This often happened after USB port changes, printer replacement, driver reinstall, or network changes, similar to Printer Offline Error cases.

What was tried: Users restarted the POS software, restarted the printer, checked the Windows queue, disabled offline mode, changed the selected printer, and reinstalled the receipt driver.

How this played out: The repair path was queue and profile refresh. Users confirmed the printer was ready in Windows, selected the active printer inside the POS application, removed old printer names, and saved the updated profile. The printer returned online after the POS system pointed to the current queue.

Problem: Cash drawer does not open

What users observed: Receipts printed, but the cash drawer did not open. The drawer depended on the receipt printer route and POS command settings, so the drawer could fail while printing continued.

What was tried: Users checked the drawer cable, changed POS drawer settings, restarted the printer, tested a transaction, changed printer driver settings, and confirmed the receipt printer selection.

How this played out: The repair path was drawer-command cleanup. Users confirmed the drawer cable, selected the active receipt printer, enabled the correct cash drawer command, and tested a transaction. The drawer opened after the POS system sent the trigger through the working printer route.

Problem: Auto-cut does not work

What users observed: Receipts printed but did not cut automatically. Users had to tear the receipt manually, or the cutter worked in one program but not in the POS software.

What was tried: Users checked the POS receipt profile, looked for cut settings, changed printer preferences, restarted the printer, tested a short receipt, and checked the cutter path.

How this played out: The repair path was cutter-setting cleanup. Users enabled auto-cut in the POS receipt profile or printer settings, saved the profile, restarted the printer, and tested one receipt. Auto-cut returned after the software sent the correct cut command.

Problem: Receipt characters print incorrectly

What users observed: Receipts printed with symbols, squares, question marks, or wrong characters. English text could print normally while accented letters, Chinese characters, currency symbols, or special characters failed.

What was tried: Users changed fonts, checked receipt templates, adjusted code pages, changed printer language settings, reinstalled the driver, and tested another transaction.

How this played out: The repair path was character-set alignment. Users matched the POS software encoding, printer code page, font mode, and receipt template settings. Characters printed correctly after the POS application and printer used the same text path.