Problem with Queue of the Printer

UNIX AIX
1

Guy's

This is the Queue of the printer ...

>lpstat -pTOPPRINTER
Queue Dev Status Job Files User PP % Blks Cp Rnk
------- ----- --------- --- ------------------ ---------- ---- -- ----- --- ---
TOPPRIN @TOPP DOWN
QUEUED 251 /tmp/out root 1 1 1
QUEUED 252 /tmp/out root 1 1 2

I'm trying by root to cancel the jobs by this command cancel 251

but it did not canceled the job , is there any way to cancel the job or delete the printer as the deleting will not allowed until cancel the jobs

also I tried to enable it but still down , I want to delete it but the queue should to be cleared

any idea ?!!

2 
qcan Command

Purpose

       Cancels a print job.

Syntax

       qcan [ -X ] [ -x JobNumber ] [ -P Printer ]

Description

       The qcan command cancels either a particular job number or all jobs in
       a print queue.
[...]