Canon i9900, i9950 Service Manual

 

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Print head manual cleaning 

See “Standalone printer operation” below. 

Also available from the 
printer driver’s 
Maintenance tab. 

Print head deep cleaning 

Perform from the printer driver utility.   

 

Pick up roller cleaning 

See “Standalone printer operation” below.   

 

Nozzle check pattern printing 

See “Standalone printer operation” below.   

Also available from the 
printer driver’s 
Maintenance tab. 

Print head alignment 

Perform from the printer driver utility. 

In Custom Settings of 
the printer driver’s 
Maintenance tab, 
manual print head 
alignment (by selecting 
the optimum values) as 
with the conventional 
models can be 
performed. 

Print head replacement 

The print head is replaceable at the same 
position as for ink tank replacement. (Open 
the access cover. When the carriage stops at 
the center, the print head can be replaced.) 

 

<Standalone printer operation> 
1) 

Power on the printer. 

2) 

Press and hold the Resume/Cancel button until the green LED blinks the specified number of times 
listed in the table below, and release it. The operation starts. 

 

LED blinking 

Operation 

Remarks 

1 time 

Print head manual cleaning 

 

2 times 

Nozzle check pattern printing 

Set a sheet of plain paper (A4 or letter) in the ASF. 

3 times 

Pick up roller cleaning 

 

4 times 

Automatic print head alignment 
(only for Bk and Cyan inks) 

Set a sheet of plain paper (A4 or letter) in the ASF. 

5 times or more 

Unspecified 

 

 

Function Procedures 

Remarks 

Service test print 
 - 

Destination 

 - 

ROM 

version 

  -  Waste ink amount 
  -  Number of pages printed 
  -  CD-R / automatic print 

head alignment sensor 
correction 

See “Service mode 
operation procedures” 
below. 

Set a sheet of A4/letter sized paper. 
(Set unused paper vertically.) 
 

For print sample, see Section 3.5. Verification Items, 
(1) Service test print, <Service test print sample>. 

EEPROM initialization 

See “Service mode 
operation procedures” 
below. 

The following items are NOT initialized: 
-  USB serial number 
- Destination settings 
-  Waste ink counter 
-  Media sensor correction value 
-  CD-R correction value 

Waste ink counter reset 

See “Service mode 
operation procedures” 
below. 

If the waste ink amount is 7% or more, replace the 
bottom case/out put tray unit (bottom case unit) or 
the ink absorber. 

Destination settings 

See “Service mode 
operation procedures” 
below. 

Japan: PIXUS 

9900i 

Overseas: 
- CD-R printing not supported (A4):  i9900 
- CD-R printing not supported (LTR): i9900 (LTR) 
- CD-R printing supported (A4): 

i9950 

- CD-R printing supported (LTR): 

i9950 (LTR) 

Note:  At the end of the service mode, press the Power button. To protect the media sensor from being