Brother HL-1800 Series Guide

1. Turn off the printer by the power switch

located on the bottom of the right side

of the printer.

2. Unplug the power cord from the rear of

the printer.

3.Allow printer to cool 30 minutes.

4. Remove the drum, toner, paper tray and

set these aside.

To remove the drum, press the Cover

Release Button and then open the front

cover. See Figure 1.

Figure 1.

Figure 2.

1. Place the printer gently on its back.

Locate the paper pick-up roller

shown by the arrow in Figure 3.

Figure 3.

Figure 4.

1. Remove the Drum Unit Assembly and

close the front cover. See Figure 2.

How to Replace the PF Kit (1850/1870N)

1. On the right hand side of the paper

pick-up roller, as shown by the

arrow in Figure 4, locate the white

tab on the locking piece.

Step 1

Step 2

Step 3

Part 1 - Replacing the Paper Pick-up Roller

Step 4

•To prevent electric shock, always turn the printer off and disconnect the power cord

from the AC outlet/socket before cleaning the printer or performing maintenance.

•Before you replace the feed roller, turn the power switch off, unplug the AC power cord

and allow the printer to cool for at least 30 minutes before replacing the feed roller.

1. Remove two white roller collars,

two springs and two teflon

washers from either side of the

paper pick-up roller. These parts

will be re-used.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

1. Install the springs, teflon

washers and white roller collars

on the new paper pick-up roller.

See Figures 7 and 8.

Please see note on the next page.

1. Move the white tab downward until it

stops as shown by the arrow in Figure

5. Then slide the locking piece towards

the right and remove it from the

machine. See Figure 5.

2. Move the paper pick-up roller towards

the right and lift it out of the machine.

Please note: The paper pick-up roller

assembly consists of one roller, two roller

collars, two springs and two teflon

washers. See Figure 6.

Step 5

Step 6

Step 7

How to Replace the PF Kit (1850/1870N)

Please note: The paper feed drive

shaft and paper feed roller have

"D" shaped areas that must be

aligned correctly. See arrow in

Figures 9 and 10.

DO NOT use force while installing

the paper feed roller into the

machine, rotating the feed roller

gently while sliding it to the left

will help it to align with the feed

roller drive shaft.

Figure 9. Figure 10.

Figure 11.

Figure 12.

Part 2 - Replacing the Separation Pad

Figure 13.

1. Install the paper pick-up roller assembly

into the machine with the longer side of

the shaft on the right. Now push the

white roller stopper back into position

and gently push the white tab upwards

to secure the paper pick-up roller into

place. See Figures 11 and 12.

Step 8

1. Gently return the printer to its normal

upright position.

Step 9

1. The paper tray should already be

removed from the machine. Place the

paper tray on a flat surface.

2. Locate the separation pad as shown by

the arrow in Figure 13.

Step 1

How to Replace the PF Kit (1850/1870N)

Figure 14.

Figure 15.

Figure 16.

Figure 17.

How to Replace the PF Kit (1850/1870N)

Apply enough pressure to un-clip the separation

pad by lifting it upwards and slightly back as

shown by the arrow in Figure 14.

Please note:

There is a spring under the separation

pad assembly. Make sure you do not lose the spring.

Step 2

1. Release the separator pad but leave the spring

in the tray as shown by the arrows in Figure 15.

Step 3

Install the new separation pad by lining up the

spring with the small tabs on the bottom of the

separation pad and clipping it into place by push-

ing down to secure it as shown by the arrows in

Figures 16 and 17.

2. To check if the separator pad is installed

correctly, press it down and release. It should

return to its original position. If not repeat

from Step 2.

Step 4

1. Re-install the drum, toner, and paper tray into

the machine. Plug in the power cord and turn

on the printer.

Wait for the printer to warm up with a Ready

Message on the Control Panel Display.

The PF Kit life counter needs to be reset to

clear the "Replace PF Kit" maintenance

message. To do this, press the GO and + buttons

at the same time. The message "Reset Parts

Life" will flash on the screen for one second,

then the display will change to "PF Kit 1".

Once this message is displayed, press the SET

button once. The counter will now be reset.

Please note: If "Pause" is displayed after attempt-

ing to reset the counter, please retry pressing GO

and + buttons at the same time. The message

"Reset Parts Life" will flash on the screen for one

second, then the display will change to "PF Kit 1".

Once this message is displayed, press the SET

button once. The counter will now be reset.

4. Print a test page by depressing the set button

three times.

Step 5

BIC1850IS

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