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: Feb. 6 2004
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AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 109
a-8. Pressure roller
1) Remove the fusing unit. (See “a. Fusing unit” in this section)
2) Release the pressure. (See “a-4. Heater lamp 1” in this section)
4) Remove the fusing roller (pressing) unit.
5) Remove the bearing from the fusing roller (pressing).
[Note for assembly (AR-M550N/U, AR-M620N/U)]
• Wind paper with the scraper tip without scratching the pressure
roller, and insert it.
• When inserting, be careful not to deform the scraper.
• Engage the bearings F/R with the pressure lever concaves and pull
out the paper from the scraper side.
• When closing the unit, first close the upper unit from the above in
order to prevent against deform of the scraper.
a-9. Cleaning scraper (AR-M550N/U, AR-M620N/U)
1) Remove the fusing unit. (See “a. Fusing unit” in this section)
2) Open the fusing unit.
3) Remove the pressure roller unit.
4) Remove the fusing cleaning scraper.
3) Remove the screw to open the fusing unit.
• When replacing the pressure roller or the scraper, they must be
replaced together. (This note should be observed within the mainte-
nance cycle.)
• When assembling the used pressure roller to the original position,
set it in the original direction (F-R direction). If it is set in the reverse
direction, it may not fit with the scraper, resulting in insufficient clean-
ing. If, however, the pressure roller and the scraper are replaced
together with new one, there is no need to consider this note.
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NOTE: Avoid rattling of the pressure roller and the scraper. If not, the
scraper may be deformed and the pressure roller may be
damaged.
[Note for installation (AR-M700N/U)]
• When installing the pressure roller to the fusing unit, be careful not to
damage the cleaning blade.
If the cleaning plate would be deformed, copy dirt would be resulted.
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Summary of Contents for AR-M550N
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