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Fail to print with a USB-connected Brother QL-700

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#5 4 則留言 0 個 reaction 已指派 0 人 在 GitHub 檢視

還沒有人認領這個 Issue。

評估

難度
4/5
預估耗時
3-5 天
新手友好度
25/100
Issue 類型
缺陷
描述清晰度
需要釐清
活躍度
停滯
技術堆疊
ubuntu

研究方向

使用 Ubuntu 22.04、CUPS 2.4.1、ghostscript-printer-app 1.0 和 Brother QL-700 PPD 重現列印工作。將 ghostscript-printer-app 記錄與 /var/log/cups/error_log 以及回報的 renderer 選項進行比較。完成的標準是確認失敗發生在應用程式、CUPS 整合或驅動程式路徑,並記錄具體的修正方式或限制。

由索引模型根據 Issue 內容生成。

描述

I am able to add the printer but there is no specific driver for this model (QL-700) so I can pick the QL-800 or QL-650. Both options fail anyway when I try to send a printing job to the printer.
The error is seen on the printer itself (blinking red LED) but the logs of ghostscript-printer-app don't say much.

Trying to use CUPS (no ghostscript-printer-app) to install the printer with the PPD file provided by Brother for the QL-700 works fine. But it fails as soon as I send any printing job. Although I'm getting more info from /var/log/cups/error_log:

W [29/Dec/2022:21:47:51 +0100] [Job 120] Grayscale/monochrome printing requested for this job but Poppler is not able to convert to grayscale/monochrome PostScript.
W [29/Dec/2022:21:47:51 +0100] [Job 120] Use \"pdftops-renderer\" option (see cups-filters README file) to use Ghostscript or MuPDF for the PDF -> PostScript conversion.

I tried every option below as well:

$ lpadmin -p QL-700 -o pdftops-renderer-default=pdftops
$ lpadmin -p QL-700 -o pdftops-renderer-default=mupdf
$ lpadmin -p QL-700 -o pdftops-renderer-default=hybrid
$ lpadmin -p QL-700 -o pdftops-renderer-default=pdftocairo
$ lpadmin -p QL-700 -o pdftops-renderer-default=acroread

with no success for any of them.

I also followed the development in this thread regarding a possible bug between the Brother driver and cups-filters, but that didn't help as I am not able to downgrade cups-filters on my machine.

I am running Ubuntu 22.04, CUPS 2.4.1 and ghostscript-printer-app 1.0.

I should finally mention that this particular printer with the exact same driver used to work just fine before a system upgrade. If only I could downgrade CUPS, I've got the feeling it could solve the problem.

主要語言
PostScript
星號
44
分支
24
PR 合併指標
30 天內沒有已合併 PR

環境準備

這個專案沒有提供開發容器、Dockerfile 或貢獻指南,環境需要你自己搭建:先看它的 README,通用步驟見我們的新手貢獻指南。

從這裡開始

  1. 先讀完整個 Issue,再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  3. Fork 儲存庫,在一個分支上完成修改。
  4. 送出 Pull Request,並在描述裡引用這個 Issue 編號。

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