Canon imagePROGRAF iPF780 - Page 11

Troubleshooting
Printed colors are inaccurate .............................................................................................................................................. 540
Banding in di󱐯erent colors occurs ................................................................................................................................... 541
Colors in printed images are uneven ............................................................................................................................... 541
Image edges are blurred or white banding occurs .................................................................................................... 542
The contrast becomes uneven during printing ........................................................................................................... 542
The length of printed images is inaccurate in the feeding direction ................................................................. 542
Images are printed crooked ................................................................................................................................................. 543
Documents are printed in monochrome ........................................................................................................................ 543
Line thickness is not uniform .............................................................................................................................................. 543
Lines are misaligned ................................................................................................................................................................ 543
Cannot print over a network 544
Cannot connect the printer to the network .................................................................................................................. 544
Cannot print over a TCP/IP network ................................................................................................................................ 544
Cannot print over a Bonjour network .............................................................................................................................. 544
Installation problems 545
The computer does not recognize the printer ............................................................................................................ 545
Removing Installed Printer Drivers .................................................................................................................................... 545
HP-GL/2 problems 547
With HP-GL/2, printing is misaligned ............................................................................................................................... 547
Lines or images are missing in printed HP-GL/2 jobs. ............................................................................................. 547
Lines are printed too thick or thin in HP-GL/2 print jobs ....................................................................................... 547
HP-GL/2 jobs are printed in monochrome (or color) ............................................................................................... 547
Printed colors of lines are inaccurate during HP-GL/2 printing .......................................................................... 547
HP-GL/2 jobs are printed 6 mm larger than specied ............................................................................................ 548
HP-GL/2 jobs are printed at maximum size, even if a standard size is specied ........................................ 548
HP-GL/2 printing takes a long time .................................................................................................................................. 548
Replotting with HP-GL/2 jobs is not possible. ............................................................................................................. 548
The printer stops when printing a HP-GL/2 job (the carriage stops moving) ............................................... 548
Other problems 549
The Ink Tank Cover has become detached from the printer ................................................................................ 549
The printer does not go on .................................................................................................................................................. 549
If the Printer Makes a Strange Sound ............................................................................................................................. 549
Messages advising to check the maintenance cartridge are not cleared ....................................................... 549
The printer consumes a lot of ink ..................................................................................................................................... 550
Ink Level Detection .................................................................................................................................................................. 550
Error Message
Error Message 553
Error Messages 554
Messages regarding paper 556
Paper mismatch ........................................................................................................................................................................ 556
MediaType Mismatch .............................................................................................................................................................. 556
The paper is too small. ........................................................................................................................................................... 557
The paper is too small. ........................................................................................................................................................... 557
PaprWidth Mismatch ............................................................................................................................................................... 558
Paper size not detected. ........................................................................................................................................................ 558
Insu󱐰cient paper for job ....................................................................................................................................................... 559
This paper cannot be used. ................................................................................................................................................. 559
Roll printing is selected. ......................................................................................................................................................... 559
Roll printing is selected, but sheets are loaded. ......................................................................................................... 559
The roll is empty. ...................................................................................................................................................................... 559
Sheet printing is selected. .................................................................................................................................................... 560
Regular printing is selected, but a roll is loaded. ........................................................................................................ 560
Paper jam ..................................................................................................................................................................................... 560
Paper is crooked. ...................................................................................................................................................................... 561
Paper not aligned with right guide. ................................................................................................................................... 561
Cannot detect papr ................................................................................................................................................................. 561
Leading edge detection error. ............................................................................................................................................. 561
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