Paper Feed Section; Control Boards - Canon MultiPASS C530 Service Manual

MultiPASS C530/C560 Chapter 1: General Description

5.3.4 Paper feed section

a) General precautions
Setting the paper size
For fax operations, the user sets the paper size in the PRINTER SETTINGS menu. The unit cannot
detect the paper size automatically. Therefore, if the paper size is altered during servicing, be sure to
set it back to the user's paper size setting.

5.3.5 Control boards

a) Adjustable volume
• The MODEM board's volume resistor VR1 has been factory-adjusted. Service personnel are not to
alter its setting.
• The power supply unit's adjustable volume VR101 has been factory-adjusted. Service personnel are
not to alter its setting.
b) Replacing the SPCNT board
The SPCNT board stores the user data, service data, and other data. Therefore, when replacing the
SPCNT board, print out the stored data and then enter this data into the new SPCNT board.
The memory of the SPCNT Board retains the data on the amount of waste ink the absorbent has drawn
and the data used to correct discrepancies in vertical alignment correction. In the light of this, it is
important to generate a system dump list before replacing the SPCNT Board.
Using the list, find out how much waste ink the absorbent has drawn; then, after replacing the board
with a new one, enter the data, and correct any discrepancies in vertical alignment correction as
necessary.
REFERENCE
If the paper size setting does not match the size of the paper installed. One of the
following two operations will be executed:
(A) If the paper size setting is the same or smaller than the actual size of the paper
installed, the following will be executed:
The document will be printed to fit the length of the paper size that has been set.
Even if the paper size setting is smaller than the actual paper size, printing will be
executed and no error will result. Depending on the document, large blank areas may
result on the printout.
(B) If the paper size setting is larger than the actual paper size, the following will be
executed:
As with (A), the document will be printed to fit the length of the paper size that has
been set. Since the actual paper size is shorter than the paper size setting, the
document's contents would be broken up to fit the paper size setting. "CHECK
PAPER SIZE" will therefore be displayed and printing will be canceled.
The SPCNT board replacement precaution is described in "5.4.5 SPCNT board
replacement precautions" on Page 1-60 .
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