Your printer cannot be running normally. You must force it into "Service Mode."
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How to Fix Your Canon Printer: A Guide to the ST 5510 Service Tool Your printer cannot be running normally
Inside every Canon inkjet printer, there is an absorbent sponge pad that catches excess ink during cleaning cycles. Canon programs a hard counter into the EEPROM chip. After a certain number of prints (usually 3-5 years of normal use), the counter hits 100%. The printer shuts down to prevent ink overflow. and their variants. IB-Series: IB4000
G1000, G2000, G3000, G4000, G5000, G6000, and their variants. IB-Series: IB4000, IB4100 series.