Clean the SZ-rollers in the high capacity stacker

When the SZ rollers in the high capacity stacker are polluted, registration and image quality problems may occur.

Location of the high capacity stackers

Before you begin

You need the following items:

Cleaning cloths (Alphawipe pads Texwipe TX1004)
Bottle of process maintenance liquid (PML)
Socket wrench 5.5
The instruction video for this maintenance action is available, see Clean the SZ-rollers in the high capacity stacker.

NOTE

In order to keep your hands clean, it is advised to use nitrile gloves when you work with ink, ColorGrip, PML, or SU70. For details see the related material safety data sheets. (Learn about printer maintenance)
Inks, ColorGrip PML and/or SU70 contain 1,2-Benzisothiazol-3(2H)-one. From the point of view of occupational health and safety, it is not recommended that people who are sensitive to chemicals (e.g., people with asthma) work with ink or chemicals.
When you spill any liquid, wipe up the drops with disposable towels and transfer the used towels to a sealable container appropriate for disposal.

	Action
1	Open the front door of the high capacity stacker.
2	Use the socket wrench to loosen the screw and open the black cover.
3	Open the two retaining clips and disconnect the flat cable.
4	IMPORTANT Do not pull the flat cable. Pull out the registration unit and place it on a clean flat surface.
5	Pull one leaf spring towards the front side and at the same time push the other leaf spring towards the back side to open the SZ-unit.
6	Moisten a cleaning cloth with PML. Use the cloth to moisten the upper and lower rollers. Turn the rollers to moisten the complete surface.
7	Wait for about 10 seconds to let the rollers absorb the PML. Clean the upper and lower pair of rollers. Rub the moist cloth across the rollers from the side until all pollution is gone. Turn the rollers to clean the complete surface. NOTE The color of the roller can change but this cannot damage the printer.
8	Close the registration unit.
9	Place the registration unit back. The arrows must be on top.
10	IMPORTANT Do not twist the flat cable. Connect the flat cable and close the two retaining clips.
11	Close the cover and use the socket wrench to fasten the screw.
12	Close the front door of the high capacity stacker.

Dispose the used cleaning cloths.