At this time, this control is not done, and the down sequence is controlled though the print operation can be continued (control that lengthens between paper and

drops the print speed).

b. Unclear position of fan shutter opening/closing

(1) Timing of detection

- At the time of operation of fixing end cooling (using small-sized papers and during raising temperature of fixing end)

- At the time of changing paper size (small size to/from large size)

- At the time of completing printing

(2) Error determination

If 2000msec or more of the input value of fan shutter detection sensor with HP detected cannot be detected at the time of moving fan shutter to the determined

position, error is determined.

(3) Operation after detection

"Check fixing unit cooling mechanism. Call service rep".

At this time, this control is not done, and the down sequence is controlled though the print operation can be continued (control that lengthens between paper and

drops the print speed).

c. Unclear fan shutter HP

(1) Timing of detection

- At the time of power ON

- At the time of operation of fixing end cooling (using small-sized papers and during raising temperature of fixing end)

- At the time of changing paper size (small size to/from large size)

- At the time of completing printing

(2) Error determination

If 2000msec or more of the input value of fan shutter HP sensor with HP cannot detected cannot be detected at the time of moving fan shutter to the determined

position, error is determined.

(3) Operation after detection

Stop printing, display the following error message on control panel.

Error code:

E840-0000: Fan Shutter Error

9.2.1.5 Detection of the Fixing Assembly Absence/Presence

iR C3380i / iR C3380 / iR C2880i / iR C2880 / iR C3580 / iR C3580i / iR C3080 / iR C3080i

This machine observes the output of thermistor connection signal (FUSER CNCTX) when walm-up rotating after power supply ON and after the door opens and

closes, and is judging the presence of the fixing unit.

When it is judged that there is no fixing unit, the DC controller stops the start-up operation of this machine, and E004-0001 are displayed at the same time.

Source of reference

thermistor connection signal (FUSER CNCTX)

9.2.2 Down Sequence Control

9.2.2.1 Down Sequence Control

iR C3380i / iR C3380 / iR C2880i / iR C2880 / iR C3580 / iR C3580i / iR C3080 / iR C3080i

This equipment runs down-sequence control in the cases listed below. Down-sequence control decreases the print speed by lengthening the interval between sheets

in order to prevent film deterioration caused by heated edge of the fixing film during continuous printing of small-sized (smaller than A4R) paper.

- When the sub-thermistor 1 temperature reading exceeds the readings listed below

- When the sub-thermistor 2 temperature reading exceeds 220 degrees C

Also in the case of uncertain paper size (e.g., by manual feeding or unspecified paper size) it executes the down sequence control as well as in the case of printing

small sized papers.

The following table indicates the down sequences in accordance with the paper type).

T-9-9

fixing assembly absent

H (connected)

Result

fixing assembly present

L (open)

Chapter 9

0014-5560

0014-5555

9-9