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I’m on Linux Mint Cinnamon and my Epson WF-7830 is already added with the vendor-supplied driver, yet every job just sits in “processing”. CUPS logs hint at missing PKI pieces, specifically showing the error "cups-pki is invalid," so I suspect a certificate or dependency problem rather than a driver issue. I’m looking for someone who really understands CUPS, Epson ESC/P-R drivers and the underlying PKI chain on Linux. The goal is simple: identify what is blocking the queue, install or repair the required package(s), and get a clean test page out of the printer. Deliverables: • Diagnose the PKI-related fault shown in CUPS logs ("cups-pki is invalid") • Install or configure the missing component through apt (or another clean method) • Confirm two successful test prints: one from the CUPS web interface, one from a normal application • Ensure the fix survives a reboot Please let me know which logs or commands (e.g., lpinfo, lpadmin, journalctl) you’d start with and when you can jump on a remote session. I can provide sudo access over SSH or AnyDesk. Once the printer spits out pages reliably, the job is done.
Project ID: 40611133
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30 freelancers are bidding on average £448 GBP for this job

Hi there, Your Epson WF-7830 queue stuck on "processing" with CUPS PKI errors is exactly the kind of low-level CUPS issue I fix daily. I've debugged certificate chain problems on several Linux distributions - the missing component is likely libcups or a CA bundle that didn't install with the vendor driver. What I'll do: ✅ Diagnose the PKI fault using journalctl and lpinfo -v -l, then identify the exact missing package (e.g., ca-certificates or libssl) via apt ✅ Install/repair the missing component, reconfigure CUPS to trust the printer's certificate, and verify the queue completes ✅ Test two prints - one from CUPS web interface, one from LibreOffice - and confirm the fix persists after reboot Skills for this job: ✅ Deep CUPS internals, Epson ESC/P-R driver handling, and PKI chain troubleshooting on Debian/Ubuntu/Mint ✅ Expert-level Linux admin (7+ years) - commands: journalctl, lpadmin, lpinfo, apt, dpkg ✅ Remote debugging over SSH/AnyDesk with careful root access handling ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ 300+ projects delivered, 280+ five-star reviews Why me: I respond fast and can jump on a remote session within hours - unlimited revisions until you see that test page. Quick question: do you have the exact vendor driver package name or should I work with what's currently installed? I can deliver this in 2 days for £404 and start as soon as you share SSH details. Let's get that printer working.
£404 GBP in 2 days
7.0
7.0

Hi, That "processing" hang with clean logs pointing at PKI usually is not the driver at all. Epson's ESC/P-R path leans on a helper that needs the right certificate store and often a missing openssl or ca-certificates dependency, plus a stale cups-pki or Avahi resolution issue. First thing I'd pull is journalctl -u cups and the error_log at LogLevel debug, then lpinfo -v and lpstat -t to see where the job actually stalls. Quick question: is the queue set to the ESC/P-R driver or a generic PostScript PPD? That changes where the block sits. I've done Linux server config and admin work over SSH before, so remote diagnosis with sudo is fine. I'll confirm both test prints and reboot-persistence before calling it done. Start on a milestone so you release only once pages come out. Adil
£550 GBP in 7 days
6.8
6.8

As a seasoned Linux expert, I am well-versed in diagnosing and resolving issues exactly like the one you are experiencing with your Epson printer on Linux Mint. My comprehensive understanding of CUPS, Epson ESC/P-R drivers, and the intricate aspects of the PKI chain on Linux make me well-equipped to resolve this problem efficiently. Notably, my proficiency in using crucial utilities such as lpinfo, lpadmin, and journalctl give me an edge in navigating through the logs and identifying the specific errors impeding your print queue. Using this knowledge, I can effectively install or repair any missing certificate or dependency via apt or any appropriate method while ensuring that it persists even after reboot. My goal is to ensure not just immediate repair but long-term functionality for your printer. Hence, I plan on conducting two thorough test prints - one from the CUPS web interface and another from a normal application - as confirmatory evidence that our approach works successfully. In addition to my skills and experience in this domain, what sets my team at Web Crest apart is our focus on delivering tailored, future-ready solutions encompassing quality frontend and backend technologies alongside cloud and DevOps expertise. We thrive in not just solving problems but creating efficient systems that stand the test of time.
£500 GBP in 3 days
5.2
5.2

Hi, I reviewed the issue: on Linux Mint Cinnamon, the Epson WF-7830 queue stays stuck in “processing” even with the vendor driver loaded. I’ll troubleshoot CUPS to pinpoint the PKI/certificate dependency blocking jobs, then repair it by installing or configuring the required packages via apt. I’ll validate the workflow using CUPS queue state, lpinfo, lpadmin checks, and journalctl traces for CUPS and the print service. After the fix, I’ll run two end-to-end tests: a print from the CUPS web interface and one from a normal application, then confirm it persists across a reboot. Let’s discuss here now.
£250 GBP in 30 days
5.3
5.3

Interesting project, Hi, I will diagnose the PKI fault blocking your Epson WF-7830 queue on Linux Mint Cinnamon, repair the missing certificates or dependencies, and confirm two clean test prints (CUPS web interface plus a desktop application) that survive a reboot. On a similar CUPS issue, the root cause turned out to be a missing or expired CA bundle that the ESC/P-R filter needed for IPP authentication. I will check yours the same way. Questions: 1) Are the CUPS error logs showing something like "SSL certificate problem" or a specific libcupsfilters error? 2) Did the printer ever print successfully on this Mint install, or has it been stuck since initial setup? Share your CUPS error_log output and I will pinpoint the failing component before we even start the remote session. Looking forward to potentially working together. Thanks, Kamran
£282 GBP in 13 days
5.0
5.0

CUPS has its own TLS material under /etc/cups/ssl, and a bad or mismatched local trust state can leave jobs in "processing" even when the Epson WF-7830 driver itself is already installed fine. I would start there rather than tearing out the printer stack first. I'll check the CUPS error log around the cups-pki hint, queue state, backend used for the WF-7830, permissions on the CUPS cert/key files, and whether ipp/usb/network discovery is feeding the right URI. Then I'll repair only what is actually broken, so that might be cupsd config, package integrity, printer backend, stale queue files, Avahi/IPP state, or Epson package bits if the logs point that way. M1: Diagnosis and log read, confirm queue/backend/certificate fault path, £210.54, 0.3d. M2: Clean repair of CUPS trust/config/package state and stuck queue cleanup, £213.73, 0.4d. M3: Two successful test prints, one from CUPS and one from a normal desktop app, then reboot and repeat the key check, £213.73, 0.3d. I'll keep the fix narrow and leave you with the commands and changed files, so if Mint updates CUPS later you know what was changed and why. Which Linux Mint version are you on, and is the WF-7830 connected by USB, WiFi, or Ethernet?
£638 GBP in 1 day
3.5
3.5

Hi, We will diagnose the CUPS queue block on your Epson WF-7830, fix the PKI dependency issue, and confirm reliable printing that persists after reboot. The first step will be checking `journalctl -u cups` and `/var/log/cups/error_log` at debug level. On Linux Mint, the ESC/P-R driver often fails silently when `libssl` or a root certificate bundle is outdated or missing. We will verify the full chain, repair it via apt, then confirm both CUPS web interface and application test prints. A couple of quick things to confirm: 1) Which Epson driver package did you install (epson-inkjet-printer-escpr or escpr2)? 2) Is the printer connected via USB or network? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Looking forward to discussing further. Best regards, Faizan
£282 GBP in 13 days
0.0
0.0

Having worked extensively as a System Administrator, I’m well-versed in tackling complex issues that come with the territory. Given your Linux Mint Cinnamon setup and Epson WF-7830 printer, my experience with CUPS, Epson ESC/P-R drivers and Linux PKI chain will come in incredibly handy for this project. I understand how essential it is to identify precisely what's causing the roadblock, and in this case, I would start by examining the provided logs using tools like jpinfo, lpadmin and journalctl. Not only would I help you zero in on the PKI-related fault and install/configure the necessary component through appropriate means (apt, etc.), but I will also ensure that any fix applied survives a reboot. This guarantee of longevity is crucial to minimizing any future disruptions. What sets me apart is my obsession with delivering tangible results and owning tasks till completion - once the printer successfully prints test pages from both CUPS web interface and an application, you can consider the job done while I stick around to troubleshoot if anything goes wrong.
£500 GBP in 3 days
0.0
0.0

On Linux Mint Cinnamon with the Epson WF-7830, a stuck CUPS queue often points to PKI/certificate or dependency gaps rather than the ESC/P-R driver itself. I can troubleshoot systematically: review CUPS error entries, confirm the backend/PPD being used, and correlate any PKI/CUPS security messages with missing packages. What I’ll do: - Diagnose the blocking fault from CUPS logs (identify the exact error and the responsible component) - Verify printer installation state with CUPS tooling, then install/repair the missing package(s) via apt or the cleanest equivalent method - Reconfigure the print path only if needed, keeping the vendor-supplied driver intact - Validate with two end-to-end tests: a print from the CUPS web interface and a print from a normal application - Ensure the solution persists after reboot by checking services and certificate-related files/permissions Once pages print reliably, the job is complete.
£250 GBP in 2 days
0.0
0.0

Greetings, I checked your project “Linux Mint Epson Printer Fix” including description “I’m on Linux Mint Cinnamon and my Epson WF-7830 is already added with the vendor-supplied driver, yet every job just sits in “processing”................” I understand the brief and can diagnose and fix the CUPS printing issue within your timeline with a stable solution. I have been securing and maintaining my 5 stars profile by dedicating my 100% quality in every project. I’d focus on the hardest part of tracing the PKI dependency issue through CUPS logs and repairing the required Linux components without affecting the existing printer setup. Operationally, I'll 1. Review CUPS logs and system services to identify the root cause 2. Repair missing packages, certificates, or configuration issues 3. Verify printing through CUPS interface and normal applications 4. Confirm the fix remains stable after reboot I aim to build a long-term working relationship and provide support for future Linux and system administration needs.
£423 GBP in 5 days
0.0
0.0

The issue sounds like a typical Linux printing stack problem where the queue appears healthy but jobs are blocked by CUPS backend security or certificate validation rather than the printer driver itself. Similar cases usually involve checking the CUPS service state, PKI files, permissions, and the interaction between the vendor driver and the printing pipeline. I’d start by reviewing the CUPS error logs, validating the current queue configuration, checking the PKI directory and related packages, then repair the broken component and test the full print flow from both CUPS and desktop applications. After the fix, I’d verify persistence across reboot and confirm the queue behaves normally under real usage. The main challenge is isolating whether the invalid PKI state comes from missing CUPS components, corrupted certificate files, or a permission/configuration issue without unnecessarily reinstalling the printer stack. Could you share the output of `journalctl -u cups`, `lpstat -t`, and the relevant CUPS error log lines around the “cups-pki is invalid” message? Is this printer connected through USB or network, and was the Epson driver installed from Epson’s package or through the Linux distribution repository? If we're aligned, I can outline the implementation phases before kickoff. Best regards Mojjammil
£350 GBP in 3 days
0.0
0.0

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