How to Fix Canon’s Wavy Zigzag Print Epson L5190 Scanner Error 100017

Question:

My Canon printer is printing wavy, zigzag text and double line images. Also, my Epson L5190 scanner is showing the error:
"Scanner error. For details, see your documentation. Error code: 100017"
Please help resolve these issues.

Answer:

Issue 1: Canon Printer Prints Wavy, Zigzag Text or Double Lines

This is a common issue typically caused by mechanical misalignment or a dirty printhead rail. Here’s how you can resolve it:

Step 1: Clean the Carriage Rod

The print carriage moves along a metal rail inside the printer. If this rail is dirty or not lubricated, it can cause irregular movement, resulting in wavy or jagged prints.

• Power off and unplug the printer.

• Open the printer to expose the carriage rod.

• Use a lint-free cloth with a drop of synthetic oil (not WD-40) or light machine oil to wipe down and lightly lubricate the rod.

• Manually slide the carriage back and forth to distribute the oil evenly.

Step 2: Check Encoder Strip

The encoder strip is a clear, thin plastic strip that the carriage uses to locate itself horizontally. If this strip is dirty or damaged, it can cause misaligned prints.

• Gently clean the strip using a soft cloth dampened with water or isopropyl alcohol.

• Do not apply excessive pressure.

Step 3: Perform Printhead Alignment

Most Canon printers offer a built-in printhead alignment process in the maintenance menu. This step ensures the nozzles are properly aligned to reduce double printing or shadowed text.

Issue 2: Epson L5190 Scanner Error Code 100017

This error is related to the scanner unit failing to initialize or move correctly. Most commonly, the scanner lamp has fallen off its guide track, or the flexible flat cable (FFC) is loose. Here’s a detailed walkthrough to help you fix it:

Step 1: Identify the Error Cause

• Error Code 100017 generally indicates a mechanical failure in the scanner lamp’s movement.

• The most common cause is the lamp being off its track or the internal ribbon cable not seated properly.

Step 2: Disassemble the Scanner

• Start by removing the three screws securing the side cover of the printer.

• Gently remove the cover and disconnect the white cable with the yellow cap and the two FFC cables attached to the cover.

• Locate and twist out the blue hinge to release the scanner assembly from the base.

Step 3: Open the Scanner Unit

• Flip the scanner upside down.

• Unscrew the four screws holding the scanner shell together.

• Carefully pry it open enough to access the internal lamp and cable components.

Step 4: Realign the Scanner Lamp

• Reach inside and gently guide the scanner lamp back onto its metal track.

• Check that it slides smoothly from one end to the other.

Step 5: Reseat the FFC Cable

• Use a plastic tool or your fingers to push the FFC cable fully into the narrow groove, often referred to as the “ditch.”

• Make sure the connection is secure—loose cables can prevent scanner initialization.

After reassembling the scanner, reconnect all cables and test the device. The error code should no longer appear.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. So, we're not able to provide remote troubleshooting, suggestions, or support for printer repairs. We offer an in-person evaluation and repair service via our local diagnostic facility (https://bchtechnologies.com/printer-repair-service). Given the high demand, we operate on a first-come, first-served basis. So, it might take a few weeks before we can get your printer to drop it off. Our services are structured to repair either a whole printer or specific parts, with clear instructions on how to proceed. However, we acknowledge that our rates aren't the most economical. Thus, we highly recommend that you resort to self-help via online research. You can start by checking out YouTube or visiting our YouTube channel's homepage (https://youtube.com/@bchtechnologies). Look for specific videos using the search icon next to "About" on the right-hand side of the menu bar. I receive dozens of queries every day asking about videos for specific topics. Having created videos over the past nine years, it's challenging to remember every single one. Therefore, using YouTube's search function would be most efficient. Plus, YouTube might suggest relevant videos from other channels that could assist you.

Thanks again for your question and your patience. We’re grateful to have customers like you who engage with our resources. Best of luck with the repair process, and we hope your printers are back in top shape soon!