Canon imagePROGRAF iPF5000 Series Service Manual

Also see for iPF5000 - imagePROGRAF Color Inkjet Printer: Troubleshooting guide Troubleshooting guide Brochure & specs Brochure Information sheet

Contents

Canon imagePROGRAF iPF5000 Series Service Manual Manual pdf 42 page image

Chapter 22-22.1.2 Print Driving 0013-5168During printing, print signals and control signals are issued to the printhead via the carriage PCB in order to discharge ink from the nozzles.On a printhead, six arrays of nozzles are provided in six arrays in a staggered pattern.This printer uses a pair of printheads.(The Y, PC, C, PGy, Gy, MBk, PM, M, Bk, R, G, B nozzles are mounted in this order from the left.)Even-numbered nozzle data and odd-numbered nozzle data -- which are print signals -- are sent to each nozzle array in sync with the data sending clock and datalatch pulse timings.Drive control signals include a Heat Enable signal and a Sub Heat Enable signal. The Heat Enable signal is used to discharge ink from nozzles. The Sub Heat Enablesignal is used to raise the printhead temperature to a suitable value to maintain the ink discharge amount constant.2.2 Firmware2.2.1 Operation Sequence at Power-on 0012-6493Shown below is the flowchart of the initialization sequence from the moment the power is turned on to the moment the printer enters the online state. The timerequired for initialization is less than 1 minute*.* This time does not include the time required for supplying ink and cleaning which takes place after the printer has been left unused for an extended period of time.F-2-22.2.2 Operation Sequence at Power-off 0012-6494Turning off the power cuts off the voltage to all drive systems. At this time, the firmware starts the power-off sequence as shown below.This printer immediately suspends all operations in progress and stops whenever the power cord is unplugged or a cover such as the top cover is opened. In thisPower Button ONDevice/resourceinitializarionPrinthead/ink tank checkMedia feed systeminitializationRecovery systeminitializationCarriage positioninitializationRemaining ink level detection/Waste ink level detectionPower-onautomatic recovery operationCappingWaiting for print operationInitialization of softwareInitialization of various devicesEngine status check Engine startup status checkPrevious power-off status check,etc.Printhead installation status checkInk tank installation status checkEEPROM checkCassette pick-up unit initializationRoll feed unit initializationRoll feed unit initializationSensor checkRecovery system return to originSensor checkCarriage motor return to origin