Technical information

OPERATIONS AND TIMING N
E. Basic Sequence
165W329’F 17OW338”F
Note: Value in parentheses indicatetemperature
when CT unit is in “se.
Figure 3-10
WMUP
(warm-up)
Period Description Remarks
Between when the power is
Waits until the fixing roller The warm-up time varies
switched ON and when the is heated. depending on the fixing
fixing roller is heated lo 165’0 roller temperature.
329”F(145”C/293”F).
WMUPR
(warm-up
rotation)
Between when the fixing roller
Stabilizes the fixing roller
is heated to 165%/329”F temperature.
(145”C/293”F) and to 17O”C/
338°F (150°C/3020F).
INTR (initial
rotation)
Between when the COPY Stabilizes the drum
START key is pressed and sensitivityinpreparationfor
when the scanner starts to copyoperation.
move forward.
AER (AE
Between when the scanner is
Measuresthedensityofthe Theoperationappliestothe
measurement)
moved forward about 70 mm/
document by moving the
the AE mode only.
2.8 in from the document scanner about 70 mm/2.8
leading edge and when it is
in forward and in reverse.
returned to the home position.
SCFW (scanner While the scanner is moving The scanning lamp illumi- The registration signa1 is
forward)
forward. nates the document, and generatedtomovethecopy
- The length of forward travel
thereflectedlightisdirected
paper to the transfer unit.
varies according to the cas
onto the photosensitive
sette size and reproduction
drum by way of mirrors and
ratio.
lens.
* The speed of forward travel
varies according to the
reproduction ratio.
Note: Values in parentheses indicate the temperature when the CT unit is in use
Table 3-la
COPYRIGHT 0 1992 CANON INC.
CANON NPZlZO/ZMO RN.0 MAY 1990 PAINTIO IN JAPAN IIMPAIME A,, JAPON,
3-11