Canon i900D Series, Service Manual

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<Print pattern for the automatic print head alignment>
A4- / Letter-sized plain paper:
Ink ejection conditions check pattern
Paper width check pattern
Paper feed direction
<Anticipated trouble and its solution>
i.
Even when the paper size is correct (A4 / LTR), and the print pattern is properly printed, the automatic
print head alignment failure error occurs.
Solution: Press the Menu button on the printer to move to Maintenance, and select Manual head
align, or in Custom Settings of the printer driver’s Maintenance tab, enable Align heads
manually, and perform the manual print head alignment.
(5) CD-R printing (i905D only)
By attaching the CD-R tray and tray feeder, printing on a 12 or 8 cm printable CD-R / DVD-R can be
performed, through front loading of the media.
<Reference>
For CD-R printing, the following detection functions are provided:
- Presence of the CD-R tray feeder (by the switch sensor inside the platen unit)
- CD-R tray position and presence of CD-R (by the CD-R sensor inside the carriage unit)
For errors and their solutions relating to CD-R printing, see 2.1. Operator Call Errors.
Note: When the CD-R tray feeder is attached, the carriage does not move to the center when the access
cover is opened. Before replacing an ink tank or the print head, remove the CD-R tray feeder.
(6) Automatic adjustment of the distance between the paper and the print head
According to paper type settings in the printer driver, the distance between the paper and the print head will
be automatically adjusted. To change the distance between the paper and the print head, the mechanism to
lift the carriage up and down using the ASF motor has been provided. (According to rotation direction of
the ASF motor, driving is switched between paper feeding and carriage lifting.)
<Anticipated trouble and its solution>
i.
Paper’s print side is soiled.
Solution: Press the Menu button on the printer to move to Maintenance, and set the Thick paper
setting to Thick paper, or in Custom Settings of the printer driver’s Maintenance tab,
enable Prevent paper abrasion (if contact to the print head occurs with paper other than
thick paper, such as envelopes and T-shirt transfers).
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