Error when Connecting Brother Printer QL-800 via USB: ERROR_NOT_SAME_MODEL

[mBosamiya]

Encountered an issue while attempting to connect the Brother Printer QL-800 via USB. Despite successful printing with the QL-820NWB model, received an error code ERROR_NOT_SAME_MODEL when using the QL-800.

Printer Info: {printerModel: {id: 51, name: QL_800}, port: {id: 1, name: USB}, ipAddress: , macAddress: , localName: , lastConnectedAddress: , paperSize: {id: 254, name: CUSTOM}, orientation: {id: 1, name: PORTRAIT}, numberOfCopies: 1, halftone: {id: 2, name: PATTERNDITHER}, printMode: {id: 2, name: FIT_TO_PAGE}, align: {id: 1, name: LEFT}, valign: {id: 1, name: TOP}, margin: {top: 0, left: 0}, pjCarbon: false, pjDensity: 5, pjFeedMode: {id: 2, name: PJ_FEED_MODE_FIXEDPAGE}, customPaperWidth: 0, customPaperLength: 0, customFeed: 0, rjDensity: 0, rotate180: false, peelMode: false, mirrorPrint: false, paperPosition: {id: 2, name: CENTER}, isAutoCut: true, isCutAtEnd: true, mode9: true, skipStatusCheck: false, checkPrintEnd: {id: 3, name: CPE_CHECK}, rollPrinterCase: {id: 1, name: PJ_ROLLCASE_OFF}, pjSpeed: 2, thresholdingValue: 127, timeout: {processTimeoutSec: -1, sendTimeoutSec: 90, receiveTimeoutSec: 180, closeWaitMSec: 500, connectionWaitMSec: 500, closeWaitDisusingStatusCheckSec: 3}, dashLine: false, savePrnPath: , overwrite: true, isHalfCut: false, isSpecialTape: false, labelNameIndex: 17, customPaper: , binCustomPaper: null, customPaperInfo: null, isLabelEndCut: false, printQuality: {id: 2, name: NORMAL}, labelMargin: 0, scaleValue: 1.0, isCutMark: false, softFocusing: false, trimTapeAfterData: false, enabledTethering: false, rawMode: false, workPath: , pjPaperKind: {id: 2, name: PJ_CUT_PAPER}, useLegacyHalftoneEngine: false, banishMargin: false, useCopyCommandInTemplatePrint: false, labelName: {id: 38, name: W62RB, model: QL700}}}

Error Info: {"errorCode":{"id":2,"name":"ERROR_NOT_SAME_MODEL"},"labelId":-1,"labelType":-1,"isACConnected":{"id":-1,"name":"Unknown"},"isBatteryMounted":{"id":-1,"name":"Unknown"},"batteryLevel":-1,"batteryResidualQuantityLevel":-1,"maxOfBatteryResidualQuantityLevel":-1}

[CodeMinion]

Hi @mBosamiya ,

Thanks for reaching out about this. Could I trouble you to share the printer configuration code that you are using to get a better idea what could be happening?

Also, could I trouble to share a picture of your printer if possible. The QL-800 comes in three variations: QL-800, QL-800W and QL-800NWB. I wonder if perhaps you have one of those variations instead.

Thanks in advance,

[mBosamiya]

Thank you for your attention to my inquiry.

Below is the code snippet used to set the printer model in the printerInfo:

printerModel = "QL-800"; // "QL-810W" or "QL-820NWB"
printerInfo.printerModel = Model.getValues().firstWhere((model) => model.getName() == printerModel); 

Regarding the printer models, I indeed have three variants: QL-800, QL-810W, and QL-820NWB. The printer model is dynamically loaded using the aforementioned code snippet.

While the printing functionality operates seamlessly with the QL-820NWB, encountering the ERROR_NOT_SAME_MODEL when attempting to utilize the QL-800 prompts concern. Additionally, the method call printer.startCommunication() returns false when using the QL-800.

Your inquiry about the specific model variant is valid. I can confirm that the printer in question is indeed the QL-800 model. However, I will provide a picture of the printer to ensure clarity regarding its identification.

Thank you once again for your assistance in resolving this matter.

[CodeMinion]

Hi @mBosamiya ,

Thanks for the additional information and the picture of the printer.

I have checked both the doc and the Android sdk and the values seem to be correct for the QL-800, yet the error ERROR_NOT_SAME_MODEL means that when connecting to the printer that value did not match the value that was received from the printer.

If you instead pass any of the other QL-800 models (W or NWB) and try connecting to that same QL-800 does it still fail with the same error as well?

[CodeMinion]

Hi @mBosamiya ,

Someone in the community seemed to have had a similar trouble with connecting to the QL-800 over USB. Seems there is an LED that must be toggled but I am not familiar with the printer.

Here is a link to their post in the hopes that it helps you as well: https://github.com/CodeMinion/another_brother/issues/67#issuecomment-1737875884