HP designjet l65500 Manuale Di Servizio

 Troubleshooting

225

7.

Once the area is clean, check again the contacts with a piece of paper and a light. Check that the 

contacts are clear of dirt/fibres and that none of them are bent or broken. 

8.

Insert the printhead back again.

9.

Close the latch, close the lid of the carriage, close the right printer door. 

10.

Turn on the printer using the ACB1 switch. 

11.

If the printhead continues failing after performing this procedure, replace the printhead.

Use this troubleshooting if the Scan Beam will not move 

even when running a diagnostic check, it is not possible to 

move the scan beam (system error pointing to a motor), 

mainly when the Motor mount assembly is pushing towards 

the limiter, there is a high probability that this round part 

(a) is no longer in the correct position. This part should 

always fit within the scan beam, and prevent the motor 

mount assembly turning.

1.

Check the PPS motor is fully working (specific test in 

diagnostic mode)

2.

Disassemble the PPS motor (2 screws).

3.

In case the issue is happening on one of the 2 PPS 

assembly of the front of the printer, we recommend to 

remove the closest curing module (refer to chapter 6).

4.

Unscrew and remove the limiter (c)

5.

Then with a thin screw driver (torx T10 for example), 

rotate the wheel situated at the bottom of the motor 

mount.

6.

If required, rotate the motor mount also to place it 

into the correct position (a), this part must be inserted 

in the correct corresponding hole in the scan beam 

(do not place your fingers at the wrong place when 

doing this manipulation) insert it into the hole (b).

The contacts of the printhead 
interconnect are 
now clean

a

b

c