Canon printer repair
Canon i-SENSYS LBP/MF, PIXMA TS/TR/G MegaTank, MAXIFY GX: 5B00 absorber error, fuser, pickup roller, printhead, drum unit.
A PIXMA TS locked out by 5B00 "ink absorber full", an i-SENSYS LBP smudging toner after a cartridge swap, a MAXIFY GX that has stopped picking paper from the tray, a colour MF754 throwing a drum unit error — these are the typical Canon printer cases that come to our bench every week. The line we cover is broad: monochrome laser i-SENSYS LBP6030w, LBP611Cn, LBP623Cdw, LBP633Cdw, laser MFPs i-SENSYS MF445dw and MF752Cdw, home inkjet PIXMA TS3151, TS3450, TS6350, TR4650, MegaTank PIXMA G540, G650, G3411, G7050, business inkjet MAXIFY GX5040 and GX6040 with pigment ink, and professional imagePROGRAF PRO-300. Typical jobs include waste ink absorber counter reset and pad replacement on PIXMA models, i-SENSYS fuser repair, pickup roller and separation pad replacement, PIXMA printhead cleaning and calibration after idle periods, MFP scanner module repair, and main board restoration. We work at the component level: replacing the fuser film and pressure roller, re-soldering power supply semiconductors, and restoring carriage ribbon cables and motors. Cartridge refilling is not a service we offer as a standalone job — that is a consumables task and we deal with hardware. Before any repair begins we agree the cost; if the repair is not worth doing we say so directly. All completed work carries a 3-month warranty.
Popular models we repair
- Canon i-SENSYS LBP6030w / LBP611Cn / LBP623Cdw / LBP633Cdw — laser printers
- Canon i-SENSYS MF445dw / MF651Cw / MF752Cdw / MF754Cdw — laser MFPs
- Canon PIXMA TS3151 / TS3450 / TS5350 / TS6350 — home inkjet MFPs
- Canon PIXMA TR4650 / TR8550 — compact inkjet MFPs
- Canon PIXMA G540 / G650 / G3411 / G7050 — MegaTank with CISS
- Canon MAXIFY GX5040 / GX6040 / GX7040 — business inkjet MegaTank
- Canon imagePROGRAF PRO-300 — professional pigment photo printers
Common problems we fix
- 5B00 / 1700 / 5800 "waste ink absorber full" error — PIXMA blocks printing, requires service reset and pad replacement
- Dried-out PIXMA printhead after idle — missing colours, white banding, missing colour channel
- i-SENSYS fuser overheating or failing to fuse toner — print smudges, paper wrinkles
- Worn pickup roller — printer will not grab paper or picks several sheets at once
- i-SENSYS drum unit life exhausted — horizontal banding, blotches, blurred detail
- PIXMA carriage will not position — broken encoder strip, worn belt, seized bearings
- Printer does not recognise a genuine Canon cartridge — chip reset, contact cleaning, firmware update
- MFP scanner not working — scanner motor failure, broken ribbon cable, lamp degradation
- Will not connect to Wi-Fi or keeps dropping — Wi-Fi module failure, router compatibility issue
Detailed problem guides
Pick a symptom — we walk through the causes, what you can check yourself, and when to bring it in.
Resetting the 5B00 error and servicing PIXMA
Like Epson, every inkjet Canon PIXMA has a built-in waste ink absorber pad underneath the printhead parking station — ink from automatic head cleaning cycles is dumped into it. An internal counter sums each dump, and when it hits the factory limit the firmware blocks printing with code 5B00 (or 1700 / 5800 on older models) so the pad cannot overflow and ink cannot leak inside the housing. The electronics and mechanics are usually still healthy at this point, but without a counter reset the printer simply will not print.
We open the lower section of the printer, remove the absorber pad, clean or replace it with a new one, flush the drainage system if needed, then reset the counter through service mode using a service utility. In parallel we check the parking station and service pump — if the rubber pump element has lost its seal, head cleaning no longer works correctly and the problem returns quickly. We replace the pump seals and capping station and inspect the printhead flex cable. After a full cycle the PIXMA is printing again, and a good service typically holds for several years of regular use.
Canon i-SENSYS laser repair — fuser, drum unit, scanner
Canon i-SENSYS LBP printers and MF MFPs are durable office machines designed for tens of thousands of pages, but they have characteristic assemblies that wear first. The fuser is the hardest-working component: it contains either a ceramic heater or a fuser film together with a rubber pressure roller. When the film wears the toner does not fuse and the page comes out smeared. We replace the fuser film, pressure roller, thermistor and the heater itself if it has broken down, and check the power supply transistors in parallel.
The drum unit on colour models LBP623, LBP633 and MF752 is a separate replaceable assembly with a finite life. When that life ends, horizontal bands, blotches and dots appear on the print. We diagnose whether the cartridge, drum unit or transfer belt needs replacement and fit either originals or proven compatible parts. On the MF MFPs we additionally repair the scanner module — scanner motor, belt, optical assembly and lamp. We stock most parts for popular i-SENSYS models, so a basic repair takes 2–4 working days. All work carries a 3-month warranty.
Pricing & warranty
Fast on-site diagnostics. Warranty: 3 months.
If the repair cost changes during the process, the technician will call to agree on the new price. No work is done without your consent.
Frequently asked questions
Why customers choose SATER
- Laser and inkjet printer repair. HP, Canon, Epson, Brother — we restore feed mechanisms, print heads and power supplies.
- Laminators, shredders, scanners, MFPs. All office equipment in one service centre — no running between workshops.
- Service contracts for businesses. One-off repair or regular maintenance — we work with corporate clients.
- 30+ years of experience. The service centre has been operating since 1993.
- We serve all of Latvia. Electronics service centre in Riga — we accept devices from anywhere in the country.